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Journal articles on the topic 'Muscle fatigue monitoring'

Author: Grafiati
Published: 4 June 2021
Last updated: 8 February 2022

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1

Yoon, Woojin, and Gwanseob Shin. "Monitoring muscle fatigue following continuous load changes." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 64, no. 1 (2020): 955–59. http://dx.doi.org/10.1177/1071181320641228.

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Human-Robot collaboration (HRC) have been actively applied in industry in a form of interactacting with workers by detecting their muscle fatigue. During repetitive movements such as dynamic muscle contractions, the information of decrement of electromyography (EMG) center frequency can suggest muscle fatigue occurred. However, the method was not evaluated both for development and recovery of muscle fatigue during such dynamic situations. If the decrement can be detected during the work without interruptions, the method can be highly useful in the industry. This study aims to confirm validity
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Airaksinen, Olavi, Pekka Rantanen, Teuvo Sihvonen, Kaisa Airaksinen, Osmo Hänninen, and Arto Herno. "MONITORING OF MUSCLE FATIGUE DURING ISOKINETIC EXERCISE." Acupuncture & Electro-Therapeutics Research 26, no. 4 (2001): 253–61. http://dx.doi.org/10.3727/036012901816355910.

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3

RANNOU, FABRICE, LARS NYBO, JANNI ENGHAVE ANDERSEN, and NIKOLAI B. NORDSBORG. "Monitoring Muscle Fatigue Progression during Dynamic Exercise." Medicine & Science in Sports & Exercise 51, no. 7 (2019): 1498–505. http://dx.doi.org/10.1249/mss.0000000000001921.

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4

Castaldo, R., E. Quarto, and F. Clemente. "A real-time FFT analyser for monitoring muscle fatigue." Journal of Biomedical Engineering 13, no. 6 (1991): 465–68. http://dx.doi.org/10.1016/0141-5425(91)90091-k.

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5

Theofilidis, George, Gregory Bogdanis, Yiannis Koutedakis, and Christina Karatzaferi. "Monitoring Exercise-Induced Muscle Fatigue and Adaptations: Making Sense of Popular or Emerging Indices and Biomarkers." Sports 6, no. 4 (2018): 153. http://dx.doi.org/10.3390/sports6040153.

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Regular exercise with the appropriate intensity and duration may improve an athlete’s physical capacities by targeting different performance determinants across the endurance–strength spectrum aiming to delay fatigue. The mechanisms of muscle fatigue depend on exercise intensity and duration and may range from substrate depletion to acidosis and product inhibition of adenosinetriphosphatase (ATPase) and glycolysis. Fatigue mechanisms have been studied in isolated muscles; single muscle fibers (intact or skinned) or at the level of filamentous or isolated motor proteins; with each approach cont
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Contessa, Paola, John Letizi, Gianluca De Luca, and Joshua C. Kline. "Contribution from motor unit firing adaptations and muscle coactivation during fatigue." Journal of Neurophysiology 119, no. 6 (2018): 2186–93. http://dx.doi.org/10.1152/jn.00766.2017.

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The control of motor unit firing behavior during fatigue is still debated in the literature. Most studies agree that the central nervous system increases the excitation to the motoneuron pool to compensate for decreased force contributions of individual motor units and sustain muscle force output during fatigue. However, some studies claim that motor units may decrease their firing rates despite increased excitation, contradicting the direct relationship between firing rates and excitation that governs the voluntary control of motor units. To investigate whether the control of motor units in f
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Twist, Craig, and Jamie Highton. "Monitoring Fatigue and Recovery in Rugby League Players." International Journal of Sports Physiology and Performance 8, no. 5 (2013): 467–74. http://dx.doi.org/10.1123/ijspp.8.5.467.

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Rugby league is a contact team sport performed at an average intensity similar to that of other team sports (~70–80% VO2max), made up of unsystematic movements of varying type, duration, and frequency. The high number of collisions, repeated eccentric muscle contractions associated with accelerating and decelerating, and prolonged aerobic nature of rugby league matches result in the development of fatigue in the days after exercise. Monitoring the presence and magnitude of this fatigue to maximize performance and training adaptation is an important consideration for applied sports scientists.
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Naeem, Jannatul, Nur Azah Hamzaid, Amelia Wong Azman, and Manfred Bijak. "Electrical stimulator with mechanomyography-based real-time monitoring, muscle fatigue detection, and safety shut-off: a pilot study." Biomedical Engineering / Biomedizinische Technik 65, no. 4 (2020): 461–68. http://dx.doi.org/10.1515/bmt-2019-0191.

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AbstractFunctional electrical stimulation (FES) has been used to produce force-related activities on the paralyzed muscle among spinal cord injury (SCI) individuals. Early muscle fatigue is an issue in all FES applications. If not properly monitored, overstimulation can occur, which can lead to muscle damage. A real-time mechanomyography (MMG)-based FES system was implemented on the quadriceps muscles of three individuals with SCI to generate an isometric force on both legs. Three threshold drop levels of MMG-root mean square (MMG-RMS) feature (thr50, thr60, and thr70; representing 50%, 60%, a
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9

Thorpe, Robin T., Anthony J. Strudwick, Martin Buchheit, Greg Atkinson, Barry Drust, and Warren Gregson. "Monitoring Fatigue During the In-Season Competitive Phase in Elite Soccer Players." International Journal of Sports Physiology and Performance 10, no. 8 (2015): 958–64. http://dx.doi.org/10.1123/ijspp.2015-0004.

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Purpose:To quantify the relationship between daily training load and a range of potential measures of fatigue in elite soccer players during an in-season competitive phase (17 d).Methods:Total high-intensity-running (THIR) distance, perceived ratings of wellness (fatigue, muscle soreness, sleep quality), countermovement-jump height (CMJ), postexercise heart-rate recovery (HRR), and heart-rate variability (Ln rMSSD) were analyzed during an in-season competitive period (17 d). General linear models were used to evaluate the influence of daily fluctuation in THIR distance on potential fatigue var
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10

Koutsos, Ermis, Vlad Cretu, and Pantelis Georgiou. "A Muscle Fibre Conduction Velocity Tracking ASIC for Local Fatigue Monitoring." IEEE Transactions on Biomedical Circuits and Systems 10, no. 6 (2016): 1119–28. http://dx.doi.org/10.1109/tbcas.2016.2520563.

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11

Kim, Hyeonseok, Jongho Lee, and Jaehyo Kim. "Electromyography-signal-based muscle fatigue assessment for knee rehabilitation monitoring systems." Biomedical Engineering Letters 8, no. 4 (2018): 345–53. http://dx.doi.org/10.1007/s13534-018-0078-z.

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Roja, Ženija, Valdis Kaļķis, Henrijs Kaļķis, and Ilmārs Pencis. "Assessment of firefighters-rescuers' work severity in relation with interaction between physical and mental load." Proceedings of the Latvian Academy of Sciences. Section B. Natural, Exact, and Applied Sciences. 63, no. 6 (2009): 264–70. http://dx.doi.org/10.2478/v10046-010-0002-0.

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Assessment of firefighters-rescuers' work severity in relation with interaction between physical and mental load The present work is focused on occupational health problems caused by ergonomic risk in firefighting, which is one of the most hazardous occupations. The aim was to evaluate the work heaviness degree and to estimate the muscle fatigue for a study group consisting of 12 firefighters-rescuers. Applying qualitative ergonomic analyses (OWAS a.o.) and clinical experiments to determine consumed metabolic energy using heart rate monitoring, the following work hardness categories were obser
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Rojas-Valverde, Daniel, Randall Gutiérrez-Vargas, Alejandro Rodríguez-Montero, Lucas A. Pereira, Irineu Loturco, and Saúl Martín-Rodríguez. "Reduced muscle contractile function in elite young soccer players after a short-congested fixture period." Proceedings of the Institution of Mechanical Engineers, Part P: Journal of Sports Engineering and Technology 233, no. 2 (2018): 249–57. http://dx.doi.org/10.1177/1754337118817957.

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Soccer is a very popular sport, which has been widely investigated. However, little is known about the effects of congested fixture periods on muscle mechanical responses since access to elite teams during competitive periods is highly restricted. Thus, the goal of this study was to describe the effects of a short-congested fixture period on the neuromechanical parameters related to fatigue and stiffness of elite young soccer players. Nineteen young elite male soccer players (age 17.13 ± 0.51 years, body mass 69.00 ± 1.22 kg, and height 174.09 ± 0.84 cm) participated in the study. The players
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14

Khan, Taha, Lina E. Lundgren, Eric Järpe, M. Charlotte Olsson, and Pelle Viberg. "A Novel Method for Classification of Running Fatigue Using Change-Point Segmentation." Sensors 19, no. 21 (2019): 4729. http://dx.doi.org/10.3390/s19214729.

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Blood lactate accumulation is a crucial fatigue indicator during sports training. Previous studies have predicted cycling fatigue using surface-electromyography (sEMG) to non-invasively estimate lactate concentration in blood. This study used sEMG to predict muscle fatigue while running and proposes a novel method for the automatic classification of running fatigue based on sEMG. Data were acquired from 12 runners during an incremental treadmill running-test using sEMG sensors placed on the vastus-lateralis, vastus-medialis, biceps-femoris, semitendinosus, and gastrocnemius muscles of the righ
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15

Liu, Shing-Hong, Chuan-Bi Lin, Ying Chen, Wenxi Chen, Tai-Shen Huang, and Chi-Yueh Hsu. "An EMG Patch for the Real-Time Monitoring of Muscle-Fatigue Conditions During Exercise." Sensors 19, no. 14 (2019): 3108. http://dx.doi.org/10.3390/s19143108.

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In recent years, wearable monitoring devices have been very popular in the health care field and are being used to avoid sport injuries during exercise. They are usually worn on the wrist, the same as sport watches, or on the chest, like an electrocardiogram patch. Common functions of these wearable devices are that they use real time to display the state of health of the body, and they are all small sized. The electromyogram (EMG) signal is usually used to show muscle activity. Thus, the EMG signal could be used to determine the muscle-fatigue conditions. In this study, the goal is to develop
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16

Siegl, André, Elisa M. Kösel, Nicholas Tam, et al. "Submaximal Markers of Fatigue and Overreaching; Implications for Monitoring Athletes." International Journal of Sports Medicine 38, no. 09 (2017): 675–82. http://dx.doi.org/10.1055/s-0043-110226.

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AbstractThe regular monitoring of athletes is important to fine-tune training and detect early symptoms of overreaching. Therefore the aim of this study was to determine if a noninvasive submaximal running test could reflect a state of overreaching. 14 trained runners completed a noninvasive Lamberts Submaximal Running Test, one week before and 2 days after finishing an ultramarathon, and delayed onset of muscle soreness and the daily analysis of life demands for athletes questionnaire were also captured. After the ultramarathon, submaximal heart rate was lower at 70% (−3 beats) and 85% of pea
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17

Fernández-Lázaro, Diego, Juan Mielgo-Ayuso, David P. Adams, et al. "Electromyography: A Simple and Accessible Tool to Assess Physical Performance and Health during Hypoxia Training. A Systematic Review." Sustainability 12, no. 21 (2020): 9137. http://dx.doi.org/10.3390/su12219137.

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Hypoxia causes reduced partial pressure of oxygen in arterial blood and induces adaptations in skeletal muscle that may affect individuals’ physical performance and muscular health. These muscular changes are detectable and quantifiable by electromyography (EMG), an instrument that assesses electrical activity during active contraction at rest. EMG is a relatively simple and accessible technique for all patients, one that can show the degree of the sensory and motor functions because it provides information about the status of the peripheral nerves and muscles. The main goal of this review is
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18

Huang, L. K., L. N. Huang, Y. M. Gao, Z. Lucev Vasic, M. Cifrek, and M. Du. "Electrical Impedance Myography Applied to Monitoring of Muscle Fatigue During Dynamic Contractions." IEEE Access 8 (2020): 13056–65. http://dx.doi.org/10.1109/access.2020.2965982.

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19

Spangenburg, Espen E., Christopher W. Ward, and Jay H. Williams. "Effects of lactate on force production by mouse EDL muscle: implications for the development of fatigue." Canadian Journal of Physiology and Pharmacology 76, no. 6 (1998): 642–48. http://dx.doi.org/10.1139/y98-061.

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Numerous studies suggest that the accumulation of lactate during exercise contributes to the fatigue process. This notion is based on close negative correlations between force and intracellular muscle lactate concentrations during fatigue and recovery. In this investigation, we attempted to determine if lactate directly affects muscle force output. This was accomplished by incubating mouse extensor digitorum longus muscles in extracellular concentrations of 10, 20, 30 and 50 mM L-(+)-lactate at 21 and 37°C and monitoring force output. At 21°C, 30 and 50 mM, extracellular lactate significantly
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Truppa, Luigi, Michelangelo Guaitolini, Pietro Garofalo, Carlo Castagna, and Andrea Mannini. "Assessment of Biomechanical Response to Fatigue through Wearable Sensors in Semi-Professional Football Referees." Sensors 21, no. 1 (2020): 66. http://dx.doi.org/10.3390/s21010066.

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Quantifying muscle fatigue is a key aspect of everyday sport practice. A reliable and objective solution that can fulfil this task would be deeply important for two main reasons: (i) it would grant an objective indicator to adjust the daily training load for each player and (ii) it would provide an innovative tool to reduce the risk of fatigue-related injuries. Available solutions for objectively quantifying the fatigue level of fatigue can be invasive for the athlete; they could alter the performance or they are not compatible with daily practice on the playground. Building on previous findin
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Tarata, M., W. Wolf, D. Georgescu, D. Alexandru, and M. Serbanescu. "Comparison of SEMG Derived Parameters and Blood Oxygen Saturation in Monitoring Neuromuscular Fatigue in Humans." International Journal of Monitoring and Surveillance Technologies Research 1, no. 4 (2013): 9–19. http://dx.doi.org/10.4018/ijmstr.2013100102.

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The effects of neuromuscular fatigue are various and with serious consequences on work performance and safety. This paper provides a practical overview of several noninvasive methods of investigating neuromuscular fatigue (NMF), mainly via the surface electromyographic signal (SEMG), as essentially related to the muscle contraction and intimately mirroring muscle activation and contraction mechanisms. The purpose of this paper is to identify the most suitable non-invasively derived parameters for detecting and quantifying NMF, to be practically used in monitoring people exposed to high risks,
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22

Abd Aziz, Musfirah, Nur Azah Hamzaid, Nazirah Hasnan, and Muhammad Afiq Dzulkifli. "Mechanomyography-based assessment during repetitive sit-to-stand and stand-to-sit in two incomplete spinal cord-injured individuals." Biomedical Engineering / Biomedizinische Technik 65, no. 2 (2020): 175–81. http://dx.doi.org/10.1515/bmt-2018-0200.

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AbstractStanding up and sitting down movements are important prerequisites to achieve functional independence in everyday life of spinal cord injury (SCI) patients. Thus, mechanomyography (MMG) was proposed as a safe monitoring tool to evaluate muscle function performance of these activities. Two incomplete SCI participants performed repetitive sit-to-stand (SitTS) and stand-to-sit (StandTS) until fatigued challenge. Three sets of these activities were completed with MMG sensors attached over the quadriceps muscles of both legs. A 5-min rest was allocated between each set, totalling 399 trials
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Bosch, A. N. "Post-exercise ingestion of a carbohydrate and casein hydrolysate supplement reduces perceived muscle soreness but not fatigue in Sevens Rugby Players." South African Journal of Sports Medicine 27, no. 4 (2016): 102. http://dx.doi.org/10.17159/2413-3108/2015/v27i4a1263.

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Objectives. This study investigated the effects of prolonged use of a protein (casein hydrolysate) supplement on perceived muscle soreness and fatigue, in international level Sevens rugby players (n=23) during a pre-season training camp. Methods. A randomised, double-blind, placebo-controlled design was used. Players were assigned to a carbohydrate-only or an isocaloric carbohydrate and protein supplement and ingested the assigned supplement after each training session (17 field training sessions over a 23-day period). Before each training session a questionnaire and 10-point visual analogue s
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Girsch, W., M. Bijak, G. Heger, et al. "Monitoring of Fes-Induced Muscle Activity by Continuous Emg-Recording." International Journal of Artificial Organs 18, no. 6 (1995): 340–44. http://dx.doi.org/10.1177/039139889501800608.

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Functional Electrical Stimulation (FES) requires information on the stimulated muscle for adjustment of the stimulation current, avoidance of muscle fatigue during the conditioning period and long term follow-up. Several applications of chronical FES are in clinical practice, but a system for direct registration of muscle activity under FES still does not exist. In six sheep the right Latissimus Dorsi Muscle (LDM) and Thoracodorsal Nerve were exposed. Stimulation electrodes were applied to each nerve and 3 EMG-applied sensing electrodes were placed into each LDM. The LDM tendon was connected t
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Molenaar, J. P., N. C. Voermans, L. A. de Jong, D. F. Stegeman, J. Doorduin, and B. G. van Engelen. "Repeatability and reliability of muscle relaxation properties induced by motor cortical stimulation." Journal of Applied Physiology 124, no. 6 (2018): 1597–604. http://dx.doi.org/10.1152/japplphysiol.00455.2017.

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Impaired muscle relaxation is a feature of many neuromuscular disorders. However, few tests are available to quantify muscle relaxation. Transcranial magnetic stimulation (TMS) of the motor cortex can induce muscle relaxation by abruptly inhibiting corticospinal drive. The aim of our study was to investigate whether repeatability and reliability of TMS-induced relaxation are greater than voluntary relaxation. Furthermore, effects of sex, cooling, and fatigue on muscle relaxation properties were studied. Muscle relaxation of deep finger flexors was assessed in 25 healthy subjects (14 men and 11
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Albert, Wayne J., Gordon G. Sleivert, J. Patrick Neary, and Yagesh N. Bhambhani. "Monitoring Individual Erector Spinae Fatigue Responses Using Electromyography and Near Infrared Spectroscopy." Canadian Journal of Applied Physiology 29, no. 4 (2004): 363–78. http://dx.doi.org/10.1139/h04-023.

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This study examined the utility of electromyography and near-infrared spectroscopy (NIRS) in assessing m. erector spinae activity during the Biering-Sørensen Back Muscle Endurance (BSME) test. Six men and four women (27.0 ± 7.1 years of age) performed the BSME test (time = 131.5 ± 43.5 s). EMG was used to quantify neuromuscular activity of the right and left side at the L3 level, and root mean square was scaled for maximum value at the start of the exercise. NIRS was used to evaluate blood volume (BV) and oxygenation (OX) simultaneous with EMG bilaterally at the L3 level. There was a decrease
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27

Mroczek, Dariusz, Edward Superlak, Marek Konefał, et al. "Changes in the Stiffness of Thigh Muscles in the Left and Right Limbs During Six Weeks of Plyometric Training in Volleyball Players." Polish Journal of Sport and Tourism 25, no. 2 (2018): 20–24. http://dx.doi.org/10.2478/pjst-2018-0010.

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Abstract Introduction. Monitoring muscle stiffness in athletes can be a good method of assessing fatigue caused by high training loads, and the early detection of fatigue can help prevent the occurrence of micro-trauma in the muscles that can cause contusions. The research carried out by Wilson et al. [1] confirmed that an optimal level of muscle stiffness is significantly correlated with high muscle loads. The aim of the current study was to determine changes in muscle stiffness of the left and right thighs during six weeks of plyometric training (PT) in volleyball players. Material and metho
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28

De Venuto, Daniela, and Giovanni Mezzina. "Field Programmable Gate Array-Embedded Platform for Dynamic Muscle Fiber Conduction Velocity Monitoring." Sensors 19, no. 20 (2019): 4594. http://dx.doi.org/10.3390/s19204594.

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This paper proposes a novel architecture of a wearable Field Programmable Gate Array (FPGA)-based platform to dynamically monitor Muscle Fiber Conduction Velocity (MFCV). The system uses a set of wireless sensors for the detection of muscular activation: four surface electromyography electrodes (EMGs) and two footswitches. The beginning of movement (trigger) is set by sensors (footswitches) detecting the feet position. The MFCV value extraction exploits an iterative algorithm, which compares two 1-bit digitized EMG signals. The EMG electrode positioning is ensured by a dedicated procedure. The
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BABA, Shunsuke, Masahiro TANAKA, Keiji SARATANI, Takayoshi KAWAZOE, and Hiroyasu NISHIKAWA. "31P-MRS Study of Rat Masseter Muscle Fatigue Using Concomitant Monitoring of Biting Pressure." Proceeding of Japanese Society of Stomatognathic Function 11 (1993): 61–66. http://dx.doi.org/10.7144/sgf1982.11.61.

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30

Baker, A. J., P. J. Carson, A. T. Green, R. G. Miller, and M. W. Weiner. "Influence of human muscle length on energy transduction studied by 31P-NMR." Journal of Applied Physiology 73, no. 1 (1992): 160–65. http://dx.doi.org/10.1152/jappl.1992.73.1.160.

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Muscle contractions at lengths below the optimum for force development were previously found to cause less fatigue than contractions at the optimum length (Lo). Decreased fatigability was suggested to arise from fewer cross-bridge interactions in shortened sarcomeres. In the present study, this suggestion was tested by monitoring energy use of human ankle dorsiflexor muscles during and after contractions at Lo and shortened lengths (Ls) with phosphorus nuclear magnetic resonance spectroscopy. The nuclear magnetic resonance spectra indicated similar rates of ATP use during contractions at Lo an
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Shakhih, Muhammad Faiz Md, Nursyazana Ridzuan, Asnida Abdul Wahab, et al. "Non-obstructive monitoring of muscle fatigue for low intensity dynamic exercise with infrared thermography technique." Medical & Biological Engineering & Computing 59, no. 7-8 (2021): 1447–59. http://dx.doi.org/10.1007/s11517-021-02387-x.

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Wehbe, George, Tim Gabbett, Dan Dwyer, Christopher McLellan, and Sam Coad. "Monitoring Neuromuscular Fatigue in Team-Sport Athletes Using a Cycle-Ergometer Test." International Journal of Sports Physiology and Performance 10, no. 3 (2015): 292–97. http://dx.doi.org/10.1123/ijspp.2014-0217.

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Purpose:To compare a novel sprint test on a cycle ergometer with a countermovement-jump (CMJ) test for monitoring neuromuscular fatigue after Australian rules football match play.Methods:Twelve elite under-18 Australian rules football players (mean ± SD age 17.5 ± 0.6 y, stature 184.7 ± 8.8 cm, body mass 75.3 ± 7.8 kg) from an Australian Football League club’s Academy program performed a short sprint test on a cycle ergometer along with a single CMJ test 1 h prematch and 1, 24, and 48 h postmatch. The cycle-ergometer sprint test involved a standardized warm-up, a maximal 6-s sprint, a 1-min ac
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Glatz, J. F., Y. F. de Jong, W. A. Coumans, C. M. Lucas, F. H. van der Veen, and G. J. van der Vusse. "Differences in metabolic response of dog and goat latissimus dorsi muscle to chronic stimulation." Journal of Applied Physiology 73, no. 3 (1992): 806–11. http://dx.doi.org/10.1152/jappl.1992.73.3.806.

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The latissimus dorsi (LD) muscle is considered suitable to assist ventricular mechanical function in either cardiomyoplasty or extra-aortic-assist devices. Such application requires that this mixed-type skeletal muscle be transformed into a fatigue-resistant muscle, the adaptation of which can be elicited by chronic stimulation. In this study the LD muscles of dog and goat were subjected in situ to 12 wk of continuous electrical stimulation through intramuscular electrodes, and their myofibrillar and metabolic adaptations were compared. A gradual increase in the contraction rate of the muscle
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Winanda, Lila Ayu Ratna, Achmad Arifin, Fauzan Arrofiqi, Trijoko Wahyu Adi, and Nadjadji Anwar. "A design concept of fuzzy decision support system for construction workers safety monitoring." MATEC Web of Conferences 258 (2019): 02019. http://dx.doi.org/10.1051/matecconf/201925802019.

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A construction project is very dynamic activities with high workloads and tight schedules, resulting in a fatigue condition of the workers. Due to the worker’s physical and physiological conditions that change over time, the risks may be varying from fatigue, and may become a potential danger of accidents. In a modern construction work safety should be planned, monitored, analyzed easily using a sophisticated system. As an attempt to realize the system, our research group developed a decision support system for construction worker safety monitoring based on fuzzy system approach. The design co
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Stout, Jeffrey, Joan Eckerson, Kyle Ebersole, et al. "Effect of creatine loading on neuromuscular fatigue threshold." Journal of Applied Physiology 88, no. 1 (2000): 109–12. http://dx.doi.org/10.1152/jappl.2000.88.1.109.

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The purpose of this investigation was to determine the effect of creatine (Cr) loading on the onset of neuromuscular fatigue by monitoring electromyographic fatigue curves from the vastus lateralis muscle using the physical working capacity at the fatigue threshold (PWCFT) test. Using a double-blind random design, 15 women athletes [mean age 19.0 ± 2.0 (SD) yr] from the university crew team received a placebo ( n = 8; 20 g glucose) or Cr ( n = 7; 5 g Cr monohydrate + 20 g glucose) four times per day for 5 consecutive days. Analysis of covariance was used to analyze the data (covaried for presu
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Wang, Hongbo, Peng Chen, Yungui Li, et al. "New Rehabilitation Assessment Method of the End-Effector Finger Rehabilitation Robot Based on Multi-Sensor Source." Healthcare 9, no. 10 (2021): 1251. http://dx.doi.org/10.3390/healthcare9101251.

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In the process of rehabilitation, the objectivity and the accuracy of rehabilitation assessment have an obvious impact on the follow-up training. To improve this problem, using a multi-sensor source, this paper attempts to establish a comprehensive assessment method of the finger rehabilitation effect, including three indicators of finger muscle strength, muscle fatigue degree, and range of motion. Firstly, on the basis of the fingertip pressure sensor of the End-Effector Finger Rehabilitation Robot, a mathematical model of finger muscle strength estimation was established, and the estimated m
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Pozza, Andreza Martinez, Milene Karenine Delamura, Clarissa Ramirez, Nelson Iguimar Valério, Laís Helena Carvalho Marino, and Neuseli Marino Lamari. "Physiotherapeutic conduct in amyotrophic lateral sclerosis." Sao Paulo Medical Journal 124, no. 6 (2006): 350–54. http://dx.doi.org/10.1590/s1516-31802006000600011.

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Amyotrophic Lateral Sclerosis (ALS) is a fatal progressive neurodegenerative disease with multifactorial etiology for which, so far, there is no effective medicinal treatment. However, by means of kinesiotherapy intervention and patient guidance and care, physiotherapy can delay physical functional losses, muscle fatigue and immobility of the joint-muscle system, thereby improving the quality of life. This survey had the aim of reviewing the physiotherapeutic conduct currently used in ALS cases. Monthly monitoring is recommended, with changes in goals and conduct at each stage of the disease,
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Chen, Szi-Wen, Jiunn-Woei Liaw, Ya-Ju Chang, Hsiao-Lung Chan, and Li-Yu Chiu. "A Cycling Movement Based System for Real-Time Muscle Fatigue and Cardiac Stress Monitoring and Analysis." PLOS ONE 10, no. 6 (2015): e0130798. http://dx.doi.org/10.1371/journal.pone.0130798.

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39

Diaz, P. T., Z. W. She, W. B. Davis, and T. L. Clanton. "Hydroxylation of salicylate by the in vitro diaphragm: evidence for hydroxyl radical production during fatigue." Journal of Applied Physiology 75, no. 2 (1993): 540–45. http://dx.doi.org/10.1152/jappl.1993.75.2.540.

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There is increasing evidence that oxygen-derived free radicals produced during strenuous work by the diaphragm may contribute to diaphragm fatigue and/or injury. However, the precise identity of these oxygen radicals remains unknown, inasmuch as oxygen free radicals are extremely short lived and their detection in biologic systems is quite difficult. There is recent evidence that the salicylate-trapping method may be a useful means of monitoring tissue production of hydroxyl radical (.OH). This method is predicated on the fact that salicylate's phenolic ring can be attacked by .OH at the 3 or
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Wilson, J. R., K. K. McCully, D. M. Mancini, B. Boden, and B. Chance. "Relationship of muscular fatigue to pH and diprotonated Pi in humans: a 31P-NMR study." Journal of Applied Physiology 64, no. 6 (1988): 2333–39. http://dx.doi.org/10.1152/jappl.1988.64.6.2333.

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Seventeen normal subjects performed maximal wrist flexion exercise with continuous monitoring of forearm muscle pH and H2PO4-, measured with 31P nuclear magnetic resonance, and muscle fatigue, expressed as a percentage of decline in maximal developed force. Four minutes of exercise (flexion duration = 1 s) reduced maximal developed force from 100 to 74 +/- 9% and pH from 6.99 +/- 0.04 to 6.17 +/- 0.33 and increased H2PO4- to 927 +/- 401% of resting levels. In all subjects, linear relationships were noted between developed force and pH (r = 0.90 +/- 0.08) and between developed force and H2PO4-
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41

Connaughton, Kathy, and Irena Yanushevskaya. "Measuring Vocal Fatigue in Sports Coaches." Journal of Clinical Speech and Language Studies 23, no. 1 (2017): 1–20. http://dx.doi.org/10.3233/acs-2017-23104.

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Objective: This study explores the immediate impact of prolonged voice use by professional sports coaches. Method: Speech samples including sustained phonation of vowel /a/ and a short read passage were collected from two professional sports coaches. The audio recordings were made within an hour before and after a coaching session, over three sessions. Perceptual evaluation of voice quality was done using the GRBAS scale. The speech samples were subsequently analyzed using Praat. The acoustic measures included fundamental frequency (f0), jitter, shimmer, Harmonics-to-Noise ratio and Cepstral P
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Miller, Lacey J., and Rachel E. Grande. "Clozapine-induced myocarditis may warrant cardiac monitoring protocol." Mental Health Clinician 5, no. 2 (2015): 82–87. http://dx.doi.org/10.9740/mhc.2015.03.082.

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Abstract Background Myocarditis, or inflammation of the heart muscle, is a black box warning associated with the use of clozapine. Although the incidence of clozapine-induced myocarditis is only 0.015% to 1.2%, recent retrospective studies have found that up to 66% of clozapine patients develop nonspecific symptoms consistent with myocarditis. Because of the difficulty in distinguishing these symptoms (including fever, tachycardia, and fatigue) from clozapine dose titration, myocarditis may be difficult to recognize. If left undetected, the condition could be fatal. Patient Case A 25-year-old
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43

Fang, Jianqi, Liying Zhang, Fangzhen Wu, Jiajia Ye, Shuhe Cai, and Xiaowen Lian. "The Safety of Baduanjin Exercise: A Systematic Review." Evidence-Based Complementary and Alternative Medicine 2021 (January 21, 2021): 1–11. http://dx.doi.org/10.1155/2021/8867098.

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Objectives. Baduanjin exercise is a form of Qigong exercise therapy that has become increasingly popular worldwide. The aims of the current systematic review were to summarize reported adverse events potentially associated with Baduanjin exercise based on currently available literature and to evaluate the quality of the methods used to monitor adverse events in the trials assessed. Methods. The English databases PubMed, Cochrane library, and EMbase were searched from inception to October 2020 using the keywords “Baduanjin” or “eight session brocade.” Only studies that included Baduanjin exerci
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Olmo, Manuel del, and Rosario Domingo. "EMG Characterization and Processing in Production Engineering." Materials 13, no. 24 (2020): 5815. http://dx.doi.org/10.3390/ma13245815.

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Electromyography (EMG) signals are biomedical signals that measure electrical currents generated during muscle contraction. These signals are strongly influenced by physiological and anatomical characteristics of the muscles and represent the neuromuscular activities of the human body. The evolution of EMG analysis and acquisition techniques makes this technology more reliable for production engineering applications, overcoming some of its inherent issues. Taking as an example, the fatigue monitoring of workers as well as enriched human–machine interaction (HMI) systems used in collaborative t
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Berg, Leonard H. van den. "The Long-term Treatment of Multifocal Motor Neuropathy with Intravenous Immunoglobulin." European Neurological Review 7, no. 2 (2012): 128. http://dx.doi.org/10.17925/enr.2012.07.02.128.

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Multifocal motor neuropathy (MMN) is a rare, purely motor neuropathy. It is a progressive disorder, most patients eventually developing severe fatigue and weakness in the arm muscles that severely impair daily functioning and quality of life. Unlike other motor neuropathies such as motor neurone disease, MMN is treatable with regular infusions of intravenous immunoglobulin (IVIg). Four double-blind, randomised, placebo-controlled studies have shown that in the short term, IVIg significantly improves muscle strength and disability in more than 70 % of patients. The 11 observational studies revi
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Gordon, T., N. Tyreman, V. F. Rafuse, and J. B. Munson. "Fast-to-Slow Conversion Following Chronic Low-Frequency Activation of Medial Gastrocnemius Muscle in Cats. I. Muscle and Motor Unit Properties." Journal of Neurophysiology 77, no. 5 (1997): 2585–604. http://dx.doi.org/10.1152/jn.1997.77.5.2585.

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Gordon, T., N. Tyreman, V. F. Rafuse, and J. B. Munson. Fast-to-slow conversion following chronic low-frequency activation of medial gastrocnemius muscle in cats. I. Muscle and motor unit properties. J. Neurophysiol. 77: 2585–2604, 1997. This study of cat medial gastrocnemius (MG) muscle and motor unit (MU) properties tests the hypothesis that the normal ranges of MU contractile force, endurance, and speed are directly associated with the amount of neuromuscular activity normally experienced by each MU. We synchronously activated all MUs in the MG muscle with the same activity (20 Hz in a 50%
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Ebenbichler, Gerold, Richard Habenicht, student, Josef Kollmitzer, Patrick Mair, Christian Starek, and Thomas Kienbacher. "Poster 1 Spectral Electromyographic Fatigue as a Potential Screening and Outcome Monitoring Tool of Sarcopenic Back Muscle Alterations." PM&R 6, no. 9 (2014): S182. http://dx.doi.org/10.1016/j.pmrj.2014.08.403.

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48

Ryan, Samuel, Emidio Pacecca, Jye Tebble, Joel Hocking, Thomas Kempton, and Aaron J. Coutts. "Measurement Characteristics of Athlete Monitoring Tools in Professional Australian Football." International Journal of Sports Physiology and Performance 15, no. 4 (2020): 457–63. http://dx.doi.org/10.1123/ijspp.2019-0060.

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Purpose: To examine the measurement reliability and sensitivity of common athlete monitoring tools in professional Australian Football players. Methods: Test–retest reliability (noise) and weekly variation (signal) data were collected from 42 professional Australian footballers from 1 club during a competition season. Perceptual wellness was measured via questionnaires completed before main training sessions (48, 72, and 96 h postmatch), with players providing a rating (1–5 Likert scale) regarding their muscle soreness, sleep quality, fatigue level, stress, and motivation. Eccentric hamstring
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Harrison, Carly, Scott Ruddock, Paul O'Halloran, Susan Mayes, Jill Cook, and Mandy Ruddock-Hudson. "Wellness Monitoring for Professional Ballet Dancers - A Pilot Study." Journal of Dance Medicine & Science 25, no. 2 (2021): 80–85. http://dx.doi.org/10.12678/1089-313x.061521b.

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Self-report wellness measures are used extensively in elite sport as valid indicators of the adaptive responses to training and performance of an athlete. Wellness parameters such as quality and quantity of sleep, muscle soreness, fatigue, and stress are monitored in professional sport via Athlete Management Systems (AMS) and self-report monitoring applications (App). However, the use of a monitoring App specifically for professional classical ballet dancers has not been tested. This study piloted a self-report App to measure wellness constructs in a professional ballet company. Three male and
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Kienbacher, Thomas, Richard Habenicht, Christian Starek, et al. "The potential use of spectral electromyographic fatigue as a screening and outcome monitoring tool of sarcopenic back muscle alterations." Journal of NeuroEngineering and Rehabilitation 11, no. 1 (2014): 106. http://dx.doi.org/10.1186/1743-0003-11-106.

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