Relevant bibliographies by topics / Oxygen consumption rate / Journal articles
To see the other types of publications on this topic, follow the link: Oxygen consumption rate.

Journal articles on the topic 'Oxygen consumption rate'

Author: Grafiati
Published: 4 June 2021
Last updated: 10 March 2023

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Oxygen consumption rate.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Galkovskaya, Galina A. "Oxygen consumption rate in rotifers." Hydrobiologia 313-314, no. 1 (November 1995): 147–56. http://dx.doi.org/10.1007/bf00025944.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Clifford, P. S., J. R. Coast, D. P. Swain, H. C. Milliken, and J. Stray-Gundersen. "HEART RATE/OXYGEN CONSUMPTION RELATIONSHIP DURING CYCLING." Medicine & Science in Sports & Exercise 18, supplement (April 1986): S36. http://dx.doi.org/10.1249/00005768-198604001-00179.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Weber, Herb. "Rate Pressure Product at Equivalent Oxygen Consumption." Journal of Cardiopulmonary Rehabilitation 9, no. 3 (March 1989): 131–32. http://dx.doi.org/10.1097/00008483-198903200-00011.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Wang, Haihui, Bogdan Z. Dlugogorski, and Eric M. Kennedy. "Oxygen consumption by a bituminous coal: Time dependence of the rate of oxygen consumption." Combustion Science and Technology 174, no. 9 (September 2002): 165–85. http://dx.doi.org/10.1080/713713083.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Kaneko, H., and K. Fujita. "EFFECT OF AERATION RATE ON OXYGEN CONSUMPTION RATE OF COMPOST." Acta Horticulturae, no. 302 (March 1992): 87–94. http://dx.doi.org/10.17660/actahortic.1992.302.8.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Jain, Varsha, Michael C. Langham, and Felix W. Wehrli. "MRI Estimation of Global Brain Oxygen Consumption Rate." Journal of Cerebral Blood Flow & Metabolism 30, no. 12 (December 2010): 1987. http://dx.doi.org/10.1038/jcbfm.2010.178.

Full text
Abstract:
Journal of Cerebral Blood Flow & Metabolism (2010) 30, 1598–1607; doi:10.1038/jcbfm.2010.49; published online 21 April 2010 Following the publication of this issue, the editors noticed that the cover figure for the September 2010 issue was incorrect. The correct version appears below. Please note that this figure was created by the authors of the above article and is credited to them in the issue.
APA, Harvard, Vancouver, ISO, and other styles
7

Jain, Varsha, Michael C. Langham, and Felix W. Wehrli. "MRI Estimation of Global Brain Oxygen Consumption Rate." Journal of Cerebral Blood Flow & Metabolism 30, no. 9 (April 21, 2010): 1598–607. http://dx.doi.org/10.1038/jcbfm.2010.49.

Full text
Abstract:
Measuring the global cerebral metabolic rate of oxygen ( CMRO2) is a valuable tool for assessing brain vitality and function. Measurement of blood oxygen saturation ( HbO2) and flow in the major cerebral outflow and inflow vessels can provide a global estimate of CMRO2. We demonstrate a rapid noninvasive method for quantifying CMRO2 by simultaneously measuring venous oxygen saturation in the superior sagittal sinus with magnetic resonance susceptometry-based oximetry, a technique that exploits the intrinsic susceptibility of deoxygenated hemoglobin, and the average blood inflow rate with phase-contrast magnetic resonance imaging. The average venous HbO2, cerebral blood flow, and global CMRO2 values in eight healthy, normal study subjects were 64%±4%, 45.2±3.2 mL per 100 g per minute, and 127±7 μmol per 100 g per minute, respectively. These values are in good agreement with those reported in literature. The technique described is noninvasive, robust, and reproducible for in vivo applications, making it ideal for use in clinical settings for assessing the pathologies associated with dysregulation of cerebral metabolism. In addition, the short acquisition time (∼30 seconds) makes the technique suitable for studying the temporal variations in CMRO2 in response to physiologic challenges.
APA, Harvard, Vancouver, ISO, and other styles
8

Jain, Varsha, Michael C. Langham, and Felix W. Wehrli. "MRI Estimation of Global Brain Oxygen Consumption Rate." Journal of Cerebral Blood Flow & Metabolism 31, no. 5 (May 2011): 1336. http://dx.doi.org/10.1038/jcbfm.2011.20.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Janssens, Marc L. "Measuring rate of heat release by oxygen consumption." Fire Technology 27, no. 3 (August 1991): 234–49. http://dx.doi.org/10.1007/bf01038449.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Yin, Wen-tao, and Ze-yang Song. "An innovative method to calculate oxygen consumption rate." Journal of Central South University 26, no. 4 (April 2019): 873–80. http://dx.doi.org/10.1007/s11771-019-4056-0.

Full text
APA, Harvard, Vancouver, ISO, and other styles
11

Chow, W. K., and S. S. Han. "Heat release rate calculation in oxygen consumption calorimetry." Applied Thermal Engineering 31, no. 2-3 (February 2011): 304–10. http://dx.doi.org/10.1016/j.applthermaleng.2010.09.010.

Full text
APA, Harvard, Vancouver, ISO, and other styles
12

Green, J. A., P. J. Butler, A. J. Woakes, I. L. Boyd, and R. L. Holder. "Heart rate and rate of oxygen consumption of exercising macaroni penguins." Journal of Experimental Biology 204, no. 4 (February 15, 2001): 673–84. http://dx.doi.org/10.1242/jeb.204.4.673.

Full text
Abstract:
Twenty-four macaroni penguins (Eudyptes chrysolophus) from three groups, breeding males (N=9), breeding females (N=9) and moulting females (N=6), were exercised on a variable-speed treadmill. Heart rate (fH) and mass-specific rate of oxygen consumption (sVO2) were recorded from the animals, and both fh and sVO2 were found to increase linearly with increasing treadmill speed. A linear regression equation described the relationship between fh and sVO2 for each individual. There were no significant differences in these regressions between breeding and moulting females. There were significant differences in these relationships between all females and breeding males. fH and s VO2 were recorded from five of these animals for a total of 24 h. When fh was used to predict sVO2 for the 24 h period using the derived regressions, the estimate was not significantly different from the measured values, with an average error of −2.1 %. When fh was used to predict sVO2 for the 5 min intervals used for the calibration in all 24 birds, the estimate was not significantly different from the observed values, and the average error was only +0.47 %. Since the fH/sVO2 relationship was the same during periods of the annual cycle when the animals were inactive/fasting and active/foraging, it seems reasonable that, as long as sex differences are taken into account, fh can be used to predict the metabolic rates of free-ranging macaroni penguins all year round.
APA, Harvard, Vancouver, ISO, and other styles
13

Sakagami, N., K. Akiyama, and Y. Nakazawa. "216 THE RELATIONSHIP BETWEEN OXYGEN CONSUMPTION RATE AND PREGNANCY RATE OF BOVINE EMBRYOS." Reproduction, Fertility and Development 19, no. 1 (2007): 225. http://dx.doi.org/10.1071/rdv19n1ab216.

Full text
Abstract:
A precise evaluation of embryo quality is important to estimate the suitability of embryo transfer to recipient animal. Recently, an objective evaluation method was reported for bovine embryos, in which the oxygen consumption of embryos can be noninvasively determined by scanning electrochemical microscopy (SECM) (Shiku et al. 2001 Anal. Chem. 73, 3751–3758). Trimarchi et al. (2000 Biol. Reprod. 62, 1866–1874) suggested that the oxygen consumption reflects the cell number and mitochondrial activity of embryos. The objectives of this study were (1) to examine the oxygen consumption of in vivo-derived embryos by SECM, (2) to investigate the relationship between oxygen consumption and morphological estimation of embryos, and (3) to assess the correlation among the oxygen consumption, embryo viability, and pregnancy rates. Fifty-six embryos were collected from Japanese Black cattle, which were superovulated with a total dose of 20 mg porcine FSH (FSH-R; Kawasaki Pharmaceutical Co., Ltd., Tokyo, Japan) followed by AI. The qualities of collected embryos at the stage of compacted morulae (CM), early blastocysts (EB), and blastocysts (BL) on Day 7 after AI were categorized as grade 1 and grade 2, according to the IETS manual (2002). The oxygen consumption rates of embryos were evaluated by SECM, as previously described by Abe et al. (2004 J. Mamm. Ova Res. 21). Embryos were frozen by programmable freezer in Dulbecco's PBS containing 1.5 M ethylene glycol, 0.1 M trehalose, and 20% calf serum. They were thawed by holding the straws in air for 8 s and then immersing them in a 30°C water bath for 15 s. After thawing, the embryos were examined for oxygen consumption. Twenty-eight embryos were then cultured in TCM-199 supplemented with 20% fetal bovine serum and 0.1 mM β-mercaptoethanol for 24 h to assess the viability of embryos by re-expansion of blastocole. The remaining 28 embryos were transferred to recipients. The pregnancy rates were determined by rectal palpation on Day 70. Data were analyzed by ANOVA. The consumption rates of BL embryos on Day 7 were significantly higher (P < 0.05) than those of CM collected on the same day (0.84 vs. 1.29 × 10−14 mol s−1, respectively). A significant difference was also observed in consumption rates between grade 1 and 2 embryos at the BL stage (P < 0.05). After freezing–thawing, the average oxygen consumption rates of embryos were 0.52 × 10−14 mol s−1 for CM (n = 9), 0.67 × 10−14 mol s−1 for EB (n = 8), and 0.96 × 10−14 mol s−1 for BL (n = 11). The CM embryos with rates of < 0.5 × 10−14 mol s−1 and the EB and BL embryos with those < 0.6 × 10−14 mol s−1 did not show good morphological appearance after 24 h in culture. Pregnant animals were not obtained from embryos with rates <0.5 × 10−14 mol s−1 for CM (n = 5) and <0.7 × 10−14 mol s−1 for EB (n = 9). A high pregnancy rate (67%) was obtained from embryos with rates >1.0 × 10−14 mol s−1 for BL (n = 14). These results suggest that the measurement of oxygen consumption of embryos after embryo freezing and prior to embryo transfer may be useful for estimating embryo quality and suitability of embryo transfer.
APA, Harvard, Vancouver, ISO, and other styles
14

Porter, R. K., and M. D. Brand. "Cellular oxygen consumption depends on body mass." American Journal of Physiology-Regulatory, Integrative and Comparative Physiology 269, no. 1 (July 1, 1995): R226—R228. http://dx.doi.org/10.1152/ajpregu.1995.269.1.r226.

Full text
Abstract:
Hepatocytes were isolated from nine species of mammal of different body mass (and standard metabolic rate). The cells were incubated under identical conditions and oxygen consumption measured. The rate of oxygen consumption (per unit mass of cells) scaled with body mass with exponent -0.18. In general, there was a 5.5-fold decrease in oxygen consumption rate with a 12,500-fold increase in body mass. The decrease in oxygen consumption rate was not due to an increase in cell volume with increasing body mass but to a decrease in intrinsic metabolic activity of the cells. This novel finding confirms and explains the decrease in oxygen consumption rate measured in tissue slices from larger mammals by H. A. Krebs (Biochim. Biophys. Acta 4: 249-269, 1950) and recently by P. Couture and A. J. Hulbert [Am. J. Physiol. 268 (Regulatory Integrative Comp. Physiol. 37): R641-R650, 1995].
APA, Harvard, Vancouver, ISO, and other styles
15

Putra, Achmad Noerkhaerin. "The Metabolism Rate of Tilapia with Measured Oxygen Consumption." Jurnal Perikanan dan Kelautan 5, no. 1 (June 1, 2015): 13. http://dx.doi.org/10.33512/jpk.v5i1.265.

Full text
APA, Harvard, Vancouver, ISO, and other styles
16

Bevan, R. M., A. J. Woakes, P. J. Butler, and J. P. Croxall. "Heart Rate and Oxygen Consumption of Exercising Gentoo Penguins." Physiological Zoology 68, no. 5 (September 1995): 855–77. http://dx.doi.org/10.1086/physzool.68.5.30163935.

Full text
APA, Harvard, Vancouver, ISO, and other styles
17

Deussen, A., and J. B. Bassingthwaighte. "Modeling [15O]oxygen tracer data for estimating oxygen consumption." American Journal of Physiology-Heart and Circulatory Physiology 270, no. 3 (March 1, 1996): H1115—H1130. http://dx.doi.org/10.1152/ajpheart.1996.270.3.h1115.

Full text
Abstract:
The most direct measure of oxidative tissue metabolism is the conversion rate of oxygen to water via mitochondrial respiration. To calculate oxygen consumption from the analysis of tissue residue curves or outflow dilution curves after injection of labeled oxygen one needs realistic mathematical models that account for convection, diffusion, and transformation in the tissue. A linear, three-region, axially distributed model accounts for intravascular convection, penetration of capillary and parenchymal cell barriers (with the use of appropriate binding spaces to account for oxygen binding to hemoglobin and myoglobin), the metabolism to [15O]water in parenchymal cells, and [15O]water transport into the venous effluent. Model solutions fit residue and outflow dilution data obtained in an isolated, red blood cell-perfused rabbit heart preparation and give estimates of the rate of oxygen consumption similar to those obtained experimentally from the flow times the arteriovenous differences in oxygen contents. The proposed application is for the assessment of regional oxidative metabolism in vivo from tissue 15O-residue curves obtained by positron emission tomography.
APA, Harvard, Vancouver, ISO, and other styles
18

Loiselle, D. S. "Exchange of oxygen across the epicardial surface distorts estimates of myocardial oxygen consumption." Journal of General Physiology 94, no. 3 (September 1, 1989): 567–90. http://dx.doi.org/10.1085/jgp.94.3.567.

Full text
Abstract:
The rate of oxygen consumption of isolated, Langendorff-circulated, saline-perfused hearts of guinea pigs, rats, and rabbits was measured using the classical Fick Principle method. The heart was suspended in a glass chamber the oxygen partial pressure, PO2, of which could be varied. The measured rate of oxygen consumption was found to vary inversely with the ambient (heart chamber) PO2. This result prevailed whether the chamber was filled with air, saline, or oil, and whether the pericardium was present or the heart was wrapped in Saran. The effect varied inversely with heart size both within and across species. It is concluded that the epicardial surface is permeable to oxygen which will diffuse either into or out of the heart as the PO2 gradient dictates. In either case the classically measured rate of oxygen consumption will be in error. The error can be large in studies of cardiac basal metabolism. A simple model is developed to describe the observed rate of oxygen consumption as classically measured. The measured rate is partitioned into two components: the true rate of oxygen consumption of the heart, and the rate of loss of oxygen by diffusive exchange across the epicardial surface. The latter component is proportional to the gradient of oxygen partial pressure from myocardium to environment and to the diffusive oxygen conductance of myocardial tissue. Application of the model allows the true rate of oxygen consumption of the heart to be recovered from measured values which may be considerably in error.
APA, Harvard, Vancouver, ISO, and other styles
19

Fu, S. J., Z. D. Cao, and J. L. Peng. "Is peak postprandial oxygen consumption positively related to growth rate and resting oxygen consumption in a sedentary catfish?" Comparative Biochemistry and Physiology Part C: Toxicology & Pharmacology 148, no. 4 (November 2008): 453–54. http://dx.doi.org/10.1016/j.cbpc.2008.10.026.

Full text
APA, Harvard, Vancouver, ISO, and other styles
20

Harris, James O., Greg B. Maguire, Stephen J. Edwards, and Deon R. Johns. "Low dissolved oxygen reduces growth rate and oxygen consumption rate of juvenile greenlip abalone, Haliotis laevigata Donovan." Aquaculture 174, no. 3-4 (April 1999): 265–78. http://dx.doi.org/10.1016/s0044-8486(99)00022-8.

Full text
APA, Harvard, Vancouver, ISO, and other styles
21

Pratama, Asep Rachmat, Elinah Elinah, and Iskandariah Iskandariah. "Media Oxygen Consumption Level for A Seed Brek Fish (Puntius Orphoides)." Barakuda 45: Jurnal Ilmu Perikanan dan Kelautan 4, no. 2 (November 30, 2022): 265–73. http://dx.doi.org/10.47685/barakuda45.v4i2.276.

Full text
Abstract:
Disolved oxygen plays an important role for fish living in its life environment. Information on the ammount of oxygen consumption of a fish in certain volume of water is needed in order to give balancing between the ammount of disolved oxygen and fish in it. The objective of this research is obtaining oxygen consumption level of a juvenile of brek fish (Puntius orphoides) of 5-7 cm body length. Oxygen consumption of fish was measured using a tube that equiped with DO tool (dissolved oxygent, DO), and the tube was filled by fresh water. Measurement of oxygen consumption of juvenil was done by measuring the concentration of dissolved oxygen from fresh water in the respirometer tube, began when fish had entered into the respirometer tube up to two hours observation. The result showed that oxygen consumption rate a juvenile of brek fish (Puntius orphoides) of 5-7 cm length, is ranging between 0.816 and 1.734 mg/hour.
APA, Harvard, Vancouver, ISO, and other styles
22

Fisher, Rochelle, Frederick F. Gilbert, and Jack D. Robinette. "Heart rate as an indicator of oxygen consumption in the pine marten (Martes americana)." Canadian Journal of Zoology 65, no. 8 (August 1, 1987): 2085–89. http://dx.doi.org/10.1139/z87-319.

Full text
Abstract:
Telemetered heart rate was examined as an indicator of oxygen consumption in eight adult pine marten (Martes americana). Martens were exercised on a treadmill in a metabolic chamber at three speeds while heart rate and oxygen consumption were monitored. High correlation coefficients were exhibited for individual experimental sessions. The overall correlaton coefficient between oxygen consumption and heart rate for all 51 experiments was 0.75. We observed a linear regression of oxygen consumption on heart rate for all marten. Regression lines for individual martens were tested for similarity to each other by analysis of covariance and were found to be significantly different. Daily variation within a particular marten was examined by using analysis of covariance. Three martens had daily regression lines similar in slope. All intercepts differed. The variability of regression lines and the appropriateness of using heart rate to predict oxygen consumption in the marten are discussed.
APA, Harvard, Vancouver, ISO, and other styles
23

Bett, Crislei, and Luis Vinatea. "Combined effect of body weight, temperature and salinity on shrimp Litopenaeus vannamei oxygen consumption rate." Brazilian Journal of Oceanography 57, no. 4 (December 2009): 305–14. http://dx.doi.org/10.1590/s1679-87592009000400005.

Full text
Abstract:
Aiming to optimize the calculations of mechanical aeration requirements in Litopenaeus vannamei marine shrimp cultures, oxygen consumption was quantified in combined conditions of temperature (20, 25 and 30ºC) and salinity (1, 13, 25 and 37 ‰) at three body weights (2, 6 and 12 g) for juvenile L. vannamei. To measure oxygen consumption, shrimps were placed in a semi-open respirometry system. Results demonstrate that temperature, salinity, shrimp size and the interaction of these parameters significantly influence the specific oxygen consumption (mg O2 g-1 h-1). The 2-g shrimp perhaps suffered osmotic stress and consumed more oxygen at salinity 37 ‰, whereas 6 and 12-g shrimp suffered such stress at salinity 1 ‰. At 25 and 30ºC oxygen consumption was more stable at salinities 13 and 25 ‰ for all groups. At 20ºC and salinity below 25 ‰ oxygen consumption was higher, possibly due to the reduced hyperosmoregulatory ability in lower temperatures. The resulting regression equations allowed the calculation of L. vannamei shrimp oxygen consumption at the temperatures, salinities and sizes tested in this study. The equations can be used for the estimation of the environmental capacity and also the mechanical aeration requirements to secure ideal levels of oxygen in L. vannamei culture systems.
APA, Harvard, Vancouver, ISO, and other styles
24

Smolander, Juhani, Marjo Ajoviita, Tanja Juuti, Ari Nummela, and Heikki Rusko. "Estimating oxygen consumption from heart rate and heart rate variability without individual calibration." Clinical Physiology and Functional Imaging 31, no. 4 (February 14, 2011): 266–71. http://dx.doi.org/10.1111/j.1475-097x.2011.01011.x.

Full text
APA, Harvard, Vancouver, ISO, and other styles
25

Hill, Esther P., David C. Willford, William Y. Moores, Ronald Bellamy, and William H. Heydorn. "Oxygen transport and oxygen consumption vs. cardiac output at different haematocrits." Perfusion 2, no. 1 (January 1987): 39–50. http://dx.doi.org/10.1177/026765918700200107.

Full text
Abstract:
Oxygen consumption was measured in 10 anaesthetized, surgically instrumented domestic pigs on cardiopulmonary bypass while cardiac output (pump flow rate) was decreased. Oxygen consumption data (calculated by the Fick principle from blood flow rate and arterial and mixed venous content measurements) were plotted against total oxygen transport (TOT=QCaO2, where Q is pump flow rate and CaO2 is arterial blood oxygen content). Oxygen consumption (VO2) measurements were made in each animal at two haematocrits (approximately 30%, which is normal for pigs, and approximately 15%). In five of the animals (Group I) the measurements were made with normal haematocrit first, the blood was then haemodiluted with plasma or Dextran, and the measurements were repeated. In the remaining five animals (Group II), the haematocrit orderwas reversed. The plots showed two regions: above a certain value of TOT which we call critical TOT, VO2 was relatively independent of TOT, while at lower values of TOT, VO2 decreased approximately linearly with TOT. At the low haematocrit, the critical TOT (±S.E.M) was significantly lower ( P <0.05) than at normal haematocrit (6.9 ± 0.9 vs. 10.7 ± 1.2 ml/min/kg). Below the critical TOT, the curves for the two haematocrit levels were not significantly different. Above the critical TOT, the average VO2 was lower at the low haematocrit than at the normal haematocrit (6.0 ± 0.6 vs. 8.8 ± 1.1 ml/min/kg).
APA, Harvard, Vancouver, ISO, and other styles
26

Hawkins, Steven A., and Robert A. Wiswell. "Rate and Mechanism of Maximal Oxygen Consumption Decline with Aging." Sports Medicine 33, no. 12 (2003): 877–88. http://dx.doi.org/10.2165/00007256-200333120-00002.

Full text
APA, Harvard, Vancouver, ISO, and other styles
27

Pinchasov, Boris B., Oleg V. Grischin, and Arcady A. Putilov. "Rate of Oxygen Consumption in Seasonal and Non-Seasonal Depression." World Journal of Biological Psychiatry 3, no. 2 (January 2002): 101–4. http://dx.doi.org/10.3109/15622970209150608.

Full text
APA, Harvard, Vancouver, ISO, and other styles
28

Richardson, Russ S., Stephen C. Johnson, and James A. Walker. "Heart rate and oxygen consumption relationship changes following intense training." Sports Medicine, Training and Rehabilitation 3, no. 2 (February 1992): 105–11. http://dx.doi.org/10.1080/15438629209517007.

Full text
APA, Harvard, Vancouver, ISO, and other styles
29

SOTHMANN, M., K. SAUPE, P. RAVEN, J. PAWELCZYK, P. DAVIS, C. DOTSON, F. LANDY, and M. SILIUNAS. "Oxygen consumption during fire suppression: error of heart rate estimation." Ergonomics 34, no. 12 (December 1991): 1469–74. http://dx.doi.org/10.1080/00140139108964890.

Full text
APA, Harvard, Vancouver, ISO, and other styles
30

PIVARNIK, JAMES M., ARYEH D. STEIN, and JUANITA M. RIVERA. "Effect of pregnancy on heart rate/oxygen consumption calibration curves." Medicine & Science in Sports & Exercise 34, no. 5 (May 2002): 750–55. http://dx.doi.org/10.1097/00005768-200205000-00004.

Full text
APA, Harvard, Vancouver, ISO, and other styles
31

Bonnin, Armand. "Influence of pedalling rate on oxygen consumption during eccentric exercise." Annals of Physical and Rehabilitation Medicine 60 (September 2017): e65-e66. http://dx.doi.org/10.1016/j.rehab.2017.07.041.

Full text
APA, Harvard, Vancouver, ISO, and other styles
32

Peoples, Gregory E., Peter L. McLennan, Peter R. C. Howe, and Herbert Groeller. "Fish Oil Reduces Heart Rate and Oxygen Consumption During Exercise." Journal of Cardiovascular Pharmacology 52, no. 6 (December 2008): 540–47. http://dx.doi.org/10.1097/fjc.0b013e3181911913.

Full text
APA, Harvard, Vancouver, ISO, and other styles
33

Roberts, Susan B., Peter R. Murgatroyd, J. A. Crisp, Virinder Nohria, K. H. Schlingenseipen, and Alan Lucas. "Long-Term Variation in Oxygen Consumption Rate in Preterm Infants." Neonatology 52, no. 1 (1987): 1–8. http://dx.doi.org/10.1159/000242677.

Full text
APA, Harvard, Vancouver, ISO, and other styles
34

Dehne, Pamela Ruzicka, and Elizabeth J. Protas. "Oxygen Consumption and Heart Rate Responses During Five Active Exercises." Physical Therapy 66, no. 8 (August 1, 1986): 1215–19. http://dx.doi.org/10.1093/ptj/66.8.1215.

Full text
APA, Harvard, Vancouver, ISO, and other styles
35

Pugh, Gordon G. "The Role of Oxygen Consumption Rate in Bioreactor Process Control." Nature Biotechnology 6, no. 5 (May 1988): 524–26. http://dx.doi.org/10.1038/nbt0588-524.

Full text
APA, Harvard, Vancouver, ISO, and other styles
36

Grimes, David Robert, Alexander G. Fletcher, and Mike Partridge. "Oxygen consumption dynamics in steady-state tumour models." Royal Society Open Science 1, no. 1 (September 2014): 140080. http://dx.doi.org/10.1098/rsos.140080.

Full text
Abstract:
Oxygen levels in cancerous tissue can have a significant effect on treatment response: hypoxic tissue is both more radioresistant and more chemoresistant than well-oxygenated tissue. While recent advances in medical imaging have facilitated real-time observation of macroscopic oxygenation, the underlying physics limits the resolution to the millimetre domain, whereas oxygen tension varies over a micrometre scale. If the distribution of oxygen in the tumour micro-environment can be accurately estimated, then the effect of potential dose escalation to these hypoxic regions could be better modelled, allowing more realistic simulation of biologically adaptive treatments. Reaction–diffusion models are commonly used for modelling oxygen dynamics, with a variety of functional forms assumed for the dependence of oxygen consumption rate (OCR) on cellular status and local oxygen availability. In this work, we examine reaction–diffusion models of oxygen consumption in spherically and cylindrically symmetric geometries. We consider two different descriptions of oxygen consumption: one in which the rate of consumption is constant and one in which it varies with oxygen tension in a hyperbolic manner. In each case, we derive analytic approximations to the steady-state oxygen distribution, which are shown to closely match the numerical solutions of the equations and accurately predict the extent to which oxygen can diffuse. The derived expressions relate the limit to which oxygen can diffuse into a tissue to the OCR of that tissue. We also demonstrate that differences between these functional forms are likely to be negligible within the range of literature estimates of the hyperbolic oxygen constant, suggesting that the constant consumption rate approximation suffices for modelling oxygen dynamics for most values of OCR. These approximations also allow the rapid identification of situations where hyperbolic consumption forms can result in significant differences from constant consumption rate models, and so can reduce the computational workload associated with numerical solutions, by estimating both the oxygen diffusion distances and resultant oxygen profile. Such analysis may be useful for parameter fitting in large imaging datasets and histological sections, and allows easy quantification of projected differences between functional forms of OCR.
APA, Harvard, Vancouver, ISO, and other styles
37

Otman, S., O. Basgöze, and Y. Gökce-Kutsal. "Energy cost of walking with flat feet." Prosthetics and Orthotics International 12, no. 2 (August 1988): 73–76. http://dx.doi.org/10.3109/03093648809078203.

Full text
Abstract:
A comparative study has been conducted to assess the effects of arch support on oxygen consumption in 20 subjects with flat feet who were generally complaining about fatigue, and also to explore whether their feeling of weariness was objective or not. The resting, walking and final recovery heart rates, blood pressures, and walking oxygen consumption values of the patients with flat feet were measured and calculated and compared to a control group using treadmill and oxygen consumption devices. In stage one the patients did not wear any arch support. Then suitable arch supports were prepared for each patient and in stage two they wore these arch supports. The results did not show any significant difference between the resting heart rates, blood pressure and oxygen consumptions. However, differences in walking heart rate, systolic blood pressure, final recovery heart rate, oxygen consumption, and energy cost values were found to be significant between stage one and two of the test in the patient group. The difference in walking diastolic blood pressure values without and with arch support were found to be insignificant. It may therefore be deduced that oxygen consumption during walking is decreased when a suitable arch support is applied to patients with flat feet.
APA, Harvard, Vancouver, ISO, and other styles
38

Carrión, M., J. Alba, and F. Thalasso. "Effect of hydrodynamic conditions on biofilm oxygen consumption rate in a fixed-bed nitrifying reactor." Water Science and Technology 52, no. 7 (October 1, 2005): 91–95. http://dx.doi.org/10.2166/wst.2005.0186.

Full text
Abstract:
The effect of the hydrodynamic conditions on oxygen consumption rate was studied in a fixed-bed nitrifying reactor. For that purpose, the kLa, the overall oxygen consumption rate and the maximum biofilm respiration rate were measured under several mixing powers. It was observed that the maximum biofilm respiration rate was dependent on the hydrodynamic conditions. From the results obtained, a simplistic model was developed to predict the overall oxygen consumption rate from the mixing power applied.
APA, Harvard, Vancouver, ISO, and other styles
39

Fu, S. J., Z. D. Cao, J. L. Peng, and Y. X. Wang. "Is peak postprandial oxygen consumption positively related to growth rate and resting oxygen consumption in a sedentary catfishSilurus meridionalis?" Journal of Fish Biology 73, no. 3 (August 2008): 692–701. http://dx.doi.org/10.1111/j.1095-8649.2008.01968.x.

Full text
APA, Harvard, Vancouver, ISO, and other styles
40

Novita, Yopi, Budhi Hascaryo Iskandar, Bambang Murdiyanto, Budy Wiryawan, and Hariyanto Hariyanto. "KONSUMSI OKSIGEN BENIH IKAN KERAPU BEBEK (Cromileptes altivelis) UKURAN PANJANG 5-7 CM." Marine Fisheries : Journal of Marine Fisheries Technology and Management 2, no. 1 (February 16, 2012): 1. http://dx.doi.org/10.29244/jmf.2.1.1-8.

Full text
Abstract:
Disolved oxygen plays an important role for fish living in its life environment. Information on the ammount of oxygen consumption of a fish in certain volume of water is needed in order to give balancing between the ammount of disolved oxygen and fish in it. The objective of this research is obtaining oxygen consumption level of a juvenile of humpback grouper (Cromileptes altivelis) of 5-7 cm body length. Oxygen consumption of fish was measured using a tube that equiped with DO tool (dissolved oxygent, DO), and the tube was filled by sea water. Measurement of oxygen con-sumption of juvenil was done by measuring the concentration of dissolved oxygen from sea water in the respirometer tube, began when fish had entered into the respirometer tube up to two hours observation. The result showed that oxygen consumption rate of a juvenile of humpback grouper (Cromileptes altivelis) of 5-7 cm length, is ranging between 0.816 and 1.734 mg/hour.
APA, Harvard, Vancouver, ISO, and other styles
41

LEVY, MIRIAM, YAIR ACHITUV, and ABRAHAM J. SUSSWEIN. "Relationship Between Respiratory Pumping and Oxygen Consumption in Aplysia Depilans and Aplysia Fasciata." Journal of Experimental Biology 141, no. 1 (January 1, 1989): 389–405. http://dx.doi.org/10.1242/jeb.141.1.389.

Full text
Abstract:
Respiratory pumping in Aplysia is a well-characterized behaviour controlled by identified neurones, but its function is unknown. To gain insight into the function of this behaviour, respiratory pumping and oxygen consumption were examined under identical conditions, in Aplysia fasciata Poiret and in A. depilans Gmelin. A. fasciata is found in less turbulent environments than is A. depilans, suggesting that control of respiratory pumping may differ in the two species. Rates of respiratory pumping and oxygen consumption were poorly correlated. The basal rate of respiratory pumping was similar in both species and was not significantly dependent on animal mass, but the resting rate of oxygen consumption was higher in A. depilans than in A. fasciata and was an inverse function of animal mass in both species. Brief, moderate hypercapnia led to an increase in oxygen consumption in both Aplysia species. In A. fasciata, the increase was much greater. Increase in oxygen consumed was not accompanied by changes in the rate of respiratory pumping. Longer, more severe periods of hypercapnia led to decreases in oxygen consumption in both Aplysia species, and an increase in the rate of respiratory pumping. Decreased oxygen consumption was more gradual in A. fasciata. Severe hypoxia produced a decrease in the rate of oxygen consumed, and an increase in the rate of respiratory pumping.
APA, Harvard, Vancouver, ISO, and other styles
42

Green, J. A., L. G. Halsey, P. J. Butler, and R. L. Holder. "Estimating the rate of oxygen consumption during submersion from the heart rate of diving animals." American Journal of Physiology-Regulatory, Integrative and Comparative Physiology 292, no. 5 (May 2007): R2028—R2038. http://dx.doi.org/10.1152/ajpregu.00691.2006.

Full text
Abstract:
How animals manage their oxygen stores during diving and other breath-hold activities has been a topic of debate among physiologists for decades. Specifically, while the behavior of free-ranging diving animals suggests that metabolism during submersion must be primarily aerobic in nature, no studies have been able to determine their rate of oxygen consumption during submersion (V̇o2d) and hence prove that this is the case. In the present study, we combine two previously used techniques and develop a new model to estimate V̇o2d accurately and plausibly in a free-ranging animal and apply it to data for macaroni penguins ( Eudyptes chrysolophus) as an example. For macaroni penguins at least, V̇o2d can be predicted by measuring heart rate during the dive cycle and the subsequent surface interval duration. Including maximum depth of the dive improves the accuracy of these predictions. This suggests that energetically demanding locomotion events within the dive combine with the differing buoyancy and locomotion costs associated with traveling to depth to influence its cost in terms of oxygen use. This will in turn effect the duration of the dive and the duration of the subsequent recovery period. In the present study, V̇o2d ranged from 4 to 28 ml·min−1·kg−1, indicating that, at least as far as aerobic metabolism was concerned, macaroni penguins were often hypometabolic, with rates of oxygen consumption usually below that for this species resting in water (25.6 ml·min−1·kg−1) and occasionally lower than that while resting in air (10.3 ml·min−1·kg−1).
APA, Harvard, Vancouver, ISO, and other styles
43

Prihadi, Tri Heru, Teuku Fadlon Haser, Brata Pantjara, Yohanna R. Widyastuti, Otong Zenal Arifin, Wahyulia Cahyanti, Irin I. Kusmini, et al. "Determining Oxygen Consumption of Indonesian Mahseer (Tor soro) Fingerlings at Different Size and Stocking Density." Journal of Hunan University Natural Sciences 49, no. 3 (March 28, 2022): 60–67. http://dx.doi.org/10.55463/issn.1674-2974.49.3.7.

Full text
Abstract:
Understanding oxygen consumption in fish is one of the essential factors in the survival performance of cultured fish. As this information is established, the appropriate size and optimum stocking density of cultured fish reared in an aquaculture system can be determined for successful larval rearing of mahseer in a hatchery. This study aimed to obtain information on the oxygen consumption rate and critical oxygen level of Indonesian mahseer fingerlings at different sizes and stocking densities. This study was conducted in the Laboratory of Fish Reproduction and Genetics, which belongs to the Research Institute for Freshwater Aquaculture and Fisheries Extension, Bogor. A factorial design with two factors (size and stocking density) and three replications were employed to run the experiments. Oxygen consumption rate was measured using a closed respirometer system (volume: 1.4 L) Parameters observed during the study are oxygen consumption rate and critical oxygen level. The results showed that the highest oxygen consumption rate was found at the size of 6-8 cm at 9.52 mg O2/g/minute with a stocking density of 7 fish/1.4 L. Oxygen consumption rate of mahseer was increased with the increase of size and stocking density. In this experiment, the critical oxygen level of mahseer fingerlings was observed at 1.44 mg/L. The obtained critical oxygen consumption could be used as a reference to determine the amount of dissolved oxygen that could support the survival rate of mahseer. In rearing practice, it would be important information used for designing early warning and mitigating culture systems to avoid deterioration of dissolved oxygen levels in the water. Therefore, this study can be recommended for improvement mahseer rearing practice for better hatchery production with providing an appropriate oxygenation system for fingerling growth.
APA, Harvard, Vancouver, ISO, and other styles
44

Kampman, Christel, Laura Piai, Hardy Temmink, Tim L. G. Hendrickx, Grietje Zeeman, and Cees J. N. Buisman. "Effect of low concentrations of dissolved oxygen on the activity of denitrifying methanotrophic bacteria." Water Science and Technology 77, no. 11 (May 14, 2018): 2589–97. http://dx.doi.org/10.2166/wst.2018.219.

Full text
Abstract:
Abstract Chemical energy can be recovered from municipal wastewater as biogas through anaerobic treatment. Effluent from direct anaerobic wastewater treatment at low temperatures, however, still contains ammonium and considerable amounts of dissolved methane. After nitritation, methane can be used as electron donor for denitrification by the anaerobic bacterium ‘Candidatus Methylomirabilis oxyfera’. It was shown that in the presence of 0.7% O2, denitrifying methanotrophic activity slightly increased and returned to its original level after oxygen had been removed. At 1.1% O2, methane consumption rate increased 118%, nitrite consumption rate increased 58%. After removal of oxygen, methane consumption rate fully recovered, and nitrite consumption rate returned to 88%. Therefore, traces of oxygen that bacteria are likely to be exposed to in wastewater treatment are not expected to negatively affect the denitrifying methanotrophic process. 2.0% O2 inhibited denitrifying activity. Nitrite consumption rate decreased 60% and did not recover after removal of oxygen. No clear effect on methane consumption was observed. Further studies should evaluate if intermittent addition of oxygen results in increased growth rates of the slow-growing ‘Candidatus Methylomirabilis oxyfera’.
APA, Harvard, Vancouver, ISO, and other styles
45

Lobkarev, A. O., R. Kh Khafiz’yanova, and O. A. Lobkarev. "The effect of testosterone on the rate of oxygen consumption by prostate tissue." Kazan medical journal 99, no. 5 (December 15, 2018): 775–78. http://dx.doi.org/10.17816/kmj2018-775.

Full text
Abstract:
Aim. To study the effect of testosterone on the rate of oxygen consumption by rodent prostate homogenate. Methods. The study included 30 healthy old white outbred male rats divided into two groups with 15 animals in each group. The rats of the first group were administered the application of 1 % testosterone-containing gel Androgel before the operation. The rats of the second group received no testosterone. Under anesthesia prostatectomy was performed. Homogenate was immediately prepared from each prostate. Further every homogenate was placed into 250 ml vial to determine the rate of oxygen consumption. Then the device measuring the concentration of oxygen dissolved in water was placed into the vial, and the air-tightness was created. Each vial was put into the thermostat for 30 minutes at 36.6 ˚C. Then the measurement of the concentration of O2 dissolved in the water was performed. Results. Application of transdermal gel with 1 % testosterone was found to cause increase of oxygen consumption by prostate tissue. This fact can explain why the clinical effectiveness of testosterone is individual to each patient with benign prostatic hyperplasia (BPH) and chronic prostatitis (CP): oxygen supply to the prostate is different in each patient with BPH and CP. So not in every patient the oxygen-transporting system is capable of supplying prostate tissues with the amount of oxygen according to increasing demand of the organ on testosterone administration. Conclusion. Testosterone increases the rate of oxygen consumption by prostate tissue.
APA, Harvard, Vancouver, ISO, and other styles
46

Grimes, David Robert, Catherine Kelly, Katarzyna Bloch, and Mike Partridge. "A method for estimating the oxygen consumption rate in multicellular tumour spheroids." Journal of The Royal Society Interface 11, no. 92 (March 6, 2014): 20131124. http://dx.doi.org/10.1098/rsif.2013.1124.

Full text
Abstract:
Hypoxia occurs when oxygen levels within a tissue drop below normal physiological levels. In tumours, hypoxia is associated with poor prognosis, increased likelihood of metastasis and resistance to therapy. Imaging techniques, for example, positron emission tomography, are increasingly used in the monitoring of tumour hypoxia and have the potential to help in the planning of radiotherapy. For this application, improved understanding of the link between image contrast and quantitative underlying oxygen distribution would be very useful. Mathematical models of tissue hypoxia and image formation can help understand this. Hypoxia is caused by an imbalance between vascular supply and tissue demand. While much work has been dedicated to the quantitative description of tumour vascular networks, consideration of tumour oxygen consumption is largely neglected. Oxidative respiration in standard two-dimensional cell culture has been widely studied. However, two-dimensional culture fails to capture the complexities of growing three-dimensional tissue which could impact on the oxygen usage. In this study, we build on previous descriptions of oxygen consumption and diffusion in three-dimensional tumour spheroids and present a method for estimating rates of oxygen consumption from spheroids, validated using stained spheroid sections. Methods for estimating the local partial pressure of oxygen, the diffusion limit and the extents of the necrotic core, hypoxic region and proliferating rim are also derived. These are validated using experimental data from DLD1 spheroids at different stages of growth. A relatively constant experimentally derived diffusion limit of 232 ± 22 μm and an O 2 consumption rate of 7.29 ± 1.4 × 10 −7 m 3 kg −1 s −1 for the spheroids studied was measured, in agreement with laboratory measurements.
APA, Harvard, Vancouver, ISO, and other styles
47

Bell, Gordon J., Gary D. Snydmiller, Diane S. Davies, and H. Art Quinney. "Relationship Between Aerobic Fitness and Metabolic Recovery From Intermittent Exercise in Endurance Athletes." Canadian Journal of Applied Physiology 22, no. 1 (February 1, 1997): 78–85. http://dx.doi.org/10.1139/h97-008.

Full text
Abstract:
This investigation examined the relationship between several different aerobic fitness test results and measurements of metabolic recovery from intermittent, high-intensity exercise in 16 male cyclists. No significant correlations were found between maximal oxygen consumption, ventilation threshold, various submaximal endurance measures and the rate of metabolic recovery, net excess postexercise oxygen consumption, or blood lactate removal after intermittent high-intensity exercise except for submaximal heart rate (r = .66, p < .05). These data indicate that aerobic fitness assessments do not indicate the ability to recover after intermittent, high-intensity exercise in endurance-trained cyclists. Key words: maximal oxygen consumption, recovery oxygen consumption, ventilation threshold, lactate, heart rate
APA, Harvard, Vancouver, ISO, and other styles
48

Nunn, J. F., K. Makita, and B. Royston. "Validation of oxygen consumption measurements during artificial ventilation." Journal of Applied Physiology 67, no. 5 (November 1, 1989): 2129–34. http://dx.doi.org/10.1152/jappl.1989.67.5.2129.

Full text
Abstract:
We describe a system for the absolute calibration of indirect calorimeters, under the conditions of artificial ventilation and increased inspired O2 concentration, in which butane, at a measured flow rate, is burned downstream of an artificial lung. One milliliter of butane requires 6.4 ml O2 for its combustion, and the respiratory quotient is 0.615. With the closed-circuit O2-replenishment method there was no significant systematic error in the measurement of either O2 consumption or CO2 output and a random error with a SD of 8.3 ml/min for O2 consumption and 6.3 ml/min for CO2 output. There were no significant differences in the errors with inspired O2 concentrations between 23.8 and 59.5% and O2 consumptions between 89 and 366 ml/min.
APA, Harvard, Vancouver, ISO, and other styles
49

Sinansari, Shofihar, Vitas Atmadi Prakoso, Erma Primanita Hayuningtyas, Bambang Priadi, Sri Sundari, and Eni Kusrini. "Pengaruh Padat Tebar terhadap Konsumsi Oksigen dan Respons Stres Ikan Cupang Alam (Betta imbellis)." OLDI (Oseanologi dan Limnologi di Indonesia) 6, no. 1 (April 28, 2021): 11. http://dx.doi.org/10.14203/oldi.2021.v6i1.314.

Full text
Abstract:
<strong>Effect of Stocking Density on Oxygen Consumption and Stress Response in Crescent Betta (<em>Betta imbellis</em>)</strong>. Stocking density is one of the determinant parameters for fish growth optimization in aquaculture systems due to its relationship with fish metabolism. Information about the impact of different stocking densities on crescent betta (<em>Betta imbellis</em>) metabolism was not available yet. This study was aimed to analyze the effect of stocking density on oxygen consumption, critical oxygen level, and stress responses in crescent betta.The study was carried out under three different stocking density treatments: 5, 10, and 15 fish/L with three replications using 2.74 ± 0.23 cm total length and 0.22 ± 0.05 g body weight tested fishes.The parameters observed were oxygen consumption, ventilation rate, blood glucose level, cortisol, and critical oxygen level. The result showed that the highest oxygen consumption was found at 5 fish/L stocking density treatment (3.01 ± 0.28 mg O<sub>2</sub>/g/h), which was significantly different from 10 fish/L (1.01 ± 0.21 mg O<sub>2</sub>/g/h) and 15 fish/L (0.92 ± 0.08 mg O<sub>2</sub>/g/h) stocking density treatments. Oxygen consumptions under hypoxic condition was not significantly different compared to normoxic condition.The ventilation rate tends to increase significantly along with the increasing of stocking densities. Critical oxygen levels were not significantly different among the treatments,with the value of 3.31 ± 0.65 mg/L, 3.14 ± 0.29 mg/L, and 2.83 ± 0.19 mg/L for stocking density of 5, 10, and 15 fish/L, respectively. The blood glucose level at 15 fish/L stocking density was significantly higher than others, whereas the cortisol levels was not significantly different among the treatments. The results of this study provided information that the increasing stocking density of cressent betta will decrease their metabolism activity and increase ventilation rate. However, the increase of ventilation rate was negatively correlated with oxygen consumption per breath at higher stocking densities due to decrease in fish activity; and higher stocking densities will decrease oxygen consumption. Based on the results, it can be concluded that the ideal stocking density for crescent betta is 5 fish/L. The increasing of stocking density will decrease oxygen consumption rates and increase the stress level of crescent betta.
APA, Harvard, Vancouver, ISO, and other styles
50

Krenger, Roger, Matteo Cornaglia, Thomas Lehnert, and Martin A. M. Gijs. "Microfluidic system for Caenorhabditis elegans culture and oxygen consumption rate measurements." Lab on a Chip 20, no. 1 (2020): 126–35. http://dx.doi.org/10.1039/c9lc00829b.

Full text
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the bibliographies on the topic 'Oxygen consumption rate' for other source types:
Dissertations / Theses
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography