Journal articles: 'Physiological aspects of Winter sports'

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Homenko, L. "Physiological aspects of winter wheat selection for adaptability." Visnyk agrarnoi nauky 98, no. 10 (October 15, 2020): 33–38. http://dx.doi.org/10.31073/agrovisnyk202010-05.

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Manukyan, I. R. "PHYSIOLOGICAL ASPECTS OF STRESS RESISTANCE IN WINTER WHEAT." Niva Povolzhya, no. 1 (2021): 30–36. http://dx.doi.org/10.36461/np.2021.58.1.007.

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Benedik, Ľudovít. "Psycho-Physiological Aspects in Karate Sports Preparation." Sport i Turystyka. Środkowoeuropejskie Czasopismo Naukowe 3, no. 2 (2020): 79–90. http://dx.doi.org/10.16926/sit.2020.03.14.

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In the study, we tried to point out, on the basis of comparison conclusions of several research works, how much the psycho-physiological aspects contribute to influencing the conception of sport preparation in terms of the philosophical context of preparation in traditional martial arts. We elucidated the perception of the difference between martial arts and combat sports and emphasized the psychological dimension of training in sports karate in relation to physical training. At the same time, we were looking for relationships that would give us an answer as to which of these aspects are more effective in terms of sports performance. In conclusion, on the basis of a comprehensive content analysis of the findings, we draw attention to the fact that only the mutual correlation of both selected aspects can achieve the desired results in the training of karate practitioners.

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Clark, Rosemary. "Physiological Aspects of Sports Training and Performance." Physiotherapy 89, no. 1 (January 2003): 67. http://dx.doi.org/10.1016/s0031-9406(05)60682-7.

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Terrados, N., B. Fernández, J. Pérez-Landaluce, M. Rodriguez, M. Coloma, and J. M. Buceta. "PHYSIOLOGICAL ASPECTS OF WOMENʼS BASKETBALL." Medicine & Science in Sports & Exercise 27, Supplement (May 1995): S24. http://dx.doi.org/10.1249/00005768-199505001-00142.

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MORGAN, DON W., and MITCHELL CRAIB. "Physiological aspects of running economy." Medicine & Science in Sports & Exercise 24, no. 4 (April 1992): 456???461. http://dx.doi.org/10.1249/00005768-199204000-00011.

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-ul-Haq, Faizan, Uzair Yaqoob, Asma Sarfaraz, and Muhammad Mannan Ali Khan. "Athletic on-field heart rate: a demand of modern cricket." International Journal Of Community Medicine And Public Health 4, no. 11 (October 25, 2017): 4350. http://dx.doi.org/10.18203/2394-6040.ijcmph20174858.

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Cricket has transformed very quickly from a gentleman’s game to a game which demand high standard of physical and physiological fitness. Cricket has a diversity of game formats ranging from 5-day test cricket to a shorter but dynamic t20 format. Since last two decades a lot of cricket is being played throughout the year, there is no discrimination of summers and winters as what used to happen during the prior days. For this reason now the standard of physiological demands of this sport has risen too. Good heart rate is always an important aspect of physiological fitness of athletes and it has a mighty impact on the performance of players in the grounds.

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Secher, Niels H. "Physiological and Biomechanical Aspects of Rowing." Sports Medicine 15, no. 1 (January 1993): 24–42. http://dx.doi.org/10.2165/00007256-199315010-00004.

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Creagh, Una, and Thomas Reilly. "Physiological and Biomechanical Aspects of Orienteering." Sports Medicine 24, no. 6 (December 1997): 409–18. http://dx.doi.org/10.2165/00007256-199724060-00005.

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Mendez-Villanueva, Alberto, and David Bishop. "Physiological Aspects of Surfboard Riding Performance." Sports Medicine 35, no. 1 (2005): 55–70. http://dx.doi.org/10.2165/00007256-200535010-00005.

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Dodd, Karl D., and Timothy J. Newans. "Talent identification for soccer: Physiological aspects." Journal of Science and Medicine in Sport 21, no. 10 (October 2018): 1073–78. http://dx.doi.org/10.1016/j.jsams.2018.01.009.

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Hoffman, Martin D., and Philip S. Clifford. "Physiological aspects of competitive cross‐country skiing." Journal of Sports Sciences 10, no. 1 (February 1992): 3–27. http://dx.doi.org/10.1080/02640419208729903.

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Rys, Magdalena, Ewa Pociecha, Jakub Oliwa, Agnieszka Ostrowska, Barbara Jurczyk, Diana Saja, and Anna Janeczko. "Deacclimation of Winter Oilseed Rape—Insight into Physiological Changes." Agronomy 10, no. 10 (October 14, 2020): 1565. http://dx.doi.org/10.3390/agronomy10101565.

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Climate changes, which result in the occurrence of periods with relatively high temperatures during the winter, can lead to the deacclimation of cold-hardened plants and cause problems with their winter survival. The aim of these studies was to investigate the physiological changes (photosynthesis and water relations including aquaporin expression) that accompany deacclimation process in the economically important winter oilseed rape plants. The effect of deacclimation on frost tolerance was also estimated for two tested cultivars: semi-dwarf and plants of a normal height. After cold acclimation at 4 °C (compared to the unacclimated control) the typical changes that accompany cold acclimation such as an increase in the content of water-soluble sugars or a lower water content in the leaves, which lead to an increased frost tolerance, were observed. Deacclimation partially or completely reversed these changes, which resulted in a decreased frost tolerance that was accompanied by a decrease in the content of sugars and an increase of the osmotic potential. The chemical composition of the leaves, which was measured using FT-Raman spectroscopy also clearly confirmed the metabolic differences between the cold-acclimated and deacclimated plants. The plants were significantly different in regard to the content of the various pigments as well as fatty acids and polysaccharides. The phenomenon of a deacclimation-induced decrease in aquaporin PIP1 accumulation, which was accompanied by unchanged PIP1 transcript accumulation, will be discussed in the aspects of the water relations and decreased frost tolerance in deacclimated plants.

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Kostin, V. I., I. L. Fedorova, and S. S. Chuvaeva. "Physiological and biochemical aspects of winter wheat growth processes under the influence of ОrgaNIKALife." Vestnik of Ulyanovsk state agricultural academy, no. 3(39) (September 4, 2017): 63–69. http://dx.doi.org/10.18286/1816-4501-2017-3-63-69.

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White, Andrea T., and Stephen C. Johnson. "Physiological Aspects and Injury in Elite Alpine Skiers." Sports Medicine 15, no. 3 (March 1993): 170–78. http://dx.doi.org/10.2165/00007256-199315030-00003.

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Castagna, Carlo, Grant Abt, and Stefano D???Ottavio. "Physiological Aspects of Soccer Refereeing Performance and Training." Sports Medicine 37, no. 7 (2007): 625–46. http://dx.doi.org/10.2165/00007256-200737070-00006.

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Martin, P. E., R. J. Gregor, A. P. Marsh, M. L. Hull, J. P. Broker, and E. F. Coyle. "BIOMECHANICAL AND PHYSIOLOGICAL ASPECTS OF CYCLING BEHAVIOR 3." Medicine &amp Science in Sports &amp Exercise 28, Supplement (May 1996): 1. http://dx.doi.org/10.1097/00005768-199605001-00003.

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Koutedakis, Y., and N. C. Sharp. "Training the female competitor: physiological aspects of fitness." British Journal of Sports Medicine 25, no. 4 (December 1, 1991): 188–90. http://dx.doi.org/10.1136/bjsm.25.4.188.

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Kane, D., R. Jensen, S. Williams, and P. Watts. "Effects of Drag Factor on Physiological Aspects of Rowing." International Journal of Sports Medicine 29, no. 5 (April 2008): 390–94. http://dx.doi.org/10.1055/s-2007-965333.

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CHATARD, JEAN-CLAUDE, JEAN-MARC LAVOIE, HELENE OTTOZ, PIERRE RANDAXHE, GEORGES CAZORLA, and JEAN-RENE LACOUR. "Physiological aspects of swimming performance for persons with disabilities." Medicine & Science in Sports & Exercise 24, no. 1 (November 1992): 1276???1282. http://dx.doi.org/10.1249/00005768-199211000-00013.

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FOSTER, CARL, NIKOLAOS GEORGAKOPOULOS, and KATHARINA MEYER. "Physiological and pathological aspects of exercise left ventricular function." Medicine & Science in Sports & Exercise 30, Supplement (1998): S379—S386. http://dx.doi.org/10.1097/00005768-199810001-00006.

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Eisenstein, Richard S. "Biochemical, Physiological, and Molecular Aspects of Human Nutrition, 2nd Edition." Medicine & Science in Sports & Exercise 38, no. 12 (December 2006): 2182. http://dx.doi.org/10.1249/01.mss.0000251354.37790.aa.

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Gaudio, R. M., S. Barbieri, P. Feltracco, F. Spaziani, M. Alberti, M. Delantone, P. Trevisiol, et al. "Impact of alcohol consumption on winter sports-related injuries." Medicine, Science and the Law 50, no. 3 (July 2010): 122–25. http://dx.doi.org/10.1258/msl.2010.010007.

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Introduction This study was carried out to evaluate data about trauma-related winter sports, including risk factors such as high speed, gender, age, alcohol consumption, details about the accident and snow conditions. Methods A retrospective review was conducted to determine the injury patterns and crash circumstances in holiday skiers and snowboarders. The data recorded were obtained from the database of the Pre-Hospital Emergency Registry of six skiing areas in the Dolomite mountains during the winter seasons November 2004–May 2009, injury data for major traumas from Ski Patrol Injury reports (helicopter, ambulance or ski slopes' patrol reports), and intrahospital Emergency Department data. Alcohol concentration in blood was detected in 200 individuals suffering from major trauma. Results A total of 4550 injured patients, predominantly male (69%), mean age 22 years (range 16–72), were included in the observational analysis. Knee, wrist and shoulder injuries were frequently associated with major thoracic, abdominal or head traumas (64% of cases). Suboptimal technical level, high speed, low concentration, snow or weather conditions, faulty equipment and protective devices were among the various causes of accidents. The analysis revealed that high alcohol blood concentration was present in 43% of 200 patients. Conclusions Even though the major causes of accidents were excessive speed, excessive fatigue, technical errors and bad weather conditions, alcohol abuse was often discovered. Random sampling and a non-systematic detection of alcohol blood levels likely led to an underestimation of alcohol consumption-related injuries. It is recommended that investigations into alcoholic intoxication in injured skiers should be carried out on a large scale.

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T. A. Abid, H. J. Kadhim, D. H. Jassim, and. "Study of Some Physiological and Pathological Aspects of Feral Queen’s Reproductive System in Iraq." Al-Qadisiyah Journal of Veterinary Medicine Sciences 10, no. 1 (June 30, 2011): 14. http://dx.doi.org/10.29079/vol10iss1art138.

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The present study is carried out to investigate some aspects of reproduction in Iraqi feral cats. Sixty blood samples and female genital specimens from sexually mature queens were trapped during the period from December 2008 to December 2009.During the entire study period, the results showed that incidence rate of follicular phase was 24.56 % and the highest incidence was in Winter 62.5%, while no follicular activity was noted in animals during Autumn . The hormonal assay showed that the mean of the estradiol -17ß in 14 follicular phase animals was 47.5pg/ml, while The dominance of vaginal epithelial cells in 14 estrus queens were nucleated superficial cells 61.5 %.The incidence of luteal phase was 29.82% and the highest incidence was in Spring 56.66%,and the average of corpora lutea per animal was 4.7 % and the incidence rate of pregnant queens was 19.29%,with high incidence in Summer 33.33% wih no pregnant queens was captured in Winter. The implantation rate was 86.06% and the transuterine migration of embryos was observed in incidence rate 27.27% and all transuterine migration of embryos was occurred in animals with 100% implantation rate . The maximum number of embryos that migrate was 2 /animal. The incidence rate of pseudopregnancy 11.76%, and characterized by present of active corpora lutea on ovaries , with slight enlargement of uterus and uterine tube .In all animals with diestrus the mean of plasma progesterone level was 48 ng/ml ,and the cell comprising the vaginal smear include intermediate cells 47% parabasal cells45% and nucleated cells 5% .The anestrus phase was recognized in incidence rate 36.84% and the highest incidence of anestrus phase was noted in Autumn 75%, Cells comprising the vaginal smear in anestrus queens include intermediate cells 87.9%, parabasal cells 8.6%,nucleated superficial cells 2.7% , anucleated superficial cells 0.8% .The pathological study was revealed 3 out of 60 queens with gross reproductive systems abnormalities ,with incidence rate 5% ,these cases include paraovarian cyst, follicular cysts and pyometra.

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Slimani, Maamer, Helmi Chaabène, Philip Davis, Emerson Franchini, Foued Cheour, and Karim Chamari. "Performance Aspects and Physiological Responses in Male Amateur Boxing Competitions." Journal of Strength and Conditioning Research 31, no. 4 (April 2017): 1132–41. http://dx.doi.org/10.1519/jsc.0000000000001643.

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Rowland, Thomas W. "Developmental Aspects of Physiological Function Relating to Aerobic Exercise in Children." Sports Medicine 10, no. 4 (October 1990): 255–66. http://dx.doi.org/10.2165/00007256-199010040-00004.

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Ushakova, N. A. "Foreign experience in managing physical culture and sports on the example of China." Entrepreneur’s Guide 14, no. 1 (February 21, 2021): 213–22. http://dx.doi.org/10.24182/2073-9885-2021-14-1-213-222.

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This article presents an analysis of the management of physical culture and sports in China. The attention is focused on the key aspects of management and development of children and youth, mass sports, as well as Olympic sports. The aspects of preparation for the upcoming Winter Olympic Games–2022 in the PRC are considered. The final part of the manuscript provides recommendations of a recommendatory nature on borrowing positive aspects from the Chinese experience for their adaptation to Russian reality.

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Schlegel, Petr, and Adam Křehký. "Physiological Aspects and Injuries in Mixed Martial Arts." Acta Facultatis Educationis Physicae Universitatis Comenianae 59, no. 1 (May 1, 2019): 1–12. http://dx.doi.org/10.2478/afepuc-2019-0001.

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Summary Mixed Martial Arts (MMA) has become an independent sport discipline with its own distinctive aspects. It can no longer be perceived as before, as a compilation of other martial arts. MMA shows originality in training methods, health aspects, performance requirements or even moral-volitional qualities. The aim of the paper is to analyse the physiological aspects of MMA in both training and combat loads, to discuss the issue of injuries in MMA and to provide a comparison with other martial arts. Studies focusing directly on MMA wrestlers have been selected. These have included both amateur and professional athletes. The databases Pubmed, Scopus, Web of Science, and Scholar were used as sources. MMA ranks among sports with high-intensity workload, wrestlers achieve high levels of lactate and other metabolic markers. They need above-average aerobic capacity and perform well in upper body strength tests. Injury rates in MMA do not differ significantly from those in professional-level martial arts. Most injuries are associated with lacerations on the head. The requirements of extensive workload during performance must be reflected in training. Encouragement of aerobic and anaerobic endurance abilities in conjunction with optimum strength training seems crucial. It is essential to include prophylaxis as regards head concussions and strive for maximum safety of the sportsman during combat. Further research is required to confirm some of the conclusions, the limitations of which are due to the number and quality of the selected studies.

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Tschakert, Gerhard, and Peter Hofmann. "High-Intensity Intermittent Exercise: Methodological and Physiological Aspects." International Journal of Sports Physiology and Performance 8, no. 6 (November 2013): 600–610. http://dx.doi.org/10.1123/ijspp.8.6.600.

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High-intensity intermittent exercise (HIIE) has been applied in competitive sports for more than 100 years. In the last decades, interval studies revealed a multitude of beneficial effects in various subjects despite a large variety of exercise prescriptions. Therefore, one could assume that an accurate prescription of HIIE is not relevant. However, the manipulation of HIIE variables (peak workload and peak-workload duration, mean workload, intensity and duration of recovery, number of intervals) directly affects the acute physiological responses during exercise leading to specific medium- and long-term training adaptations. The diversity of intermittent-exercise regimens applied in different studies may suggest that the acute physiological mechanisms during HIIE forced by particular exercise prescriptions are not clear in detail or not taken into consideration. A standardized and consistent approach to the prescription and classification of HIIE is still missing. An optimal and individual setting of the HIIE variables requires the consideration of the physiological responses elicited by the HIIE regimen. In this regard, particularly the intensities and durations of the peak-workload phases are highly relevant since these variables are primarily responsible for the metabolic processes during HIIE in the working muscle (eg, lactate metabolism). In addition, the way of prescribing exercise intensity also markedly influences acute metabolic and cardiorespiratory responses. Turn-point or threshold models are suggested to be more appropriate and accurate to prescribe HIIE intensity than using percentages of maximal heart rate or maximal oxygen uptake.

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Heller, J. "Physiological profiles of elite badminton players: aspects of age and gender." British Journal of Sports Medicine 44, Suppl_1 (September 1, 2010): i17. http://dx.doi.org/10.1136/bjsm.2010.078725.51.

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Bausch, Thomas, and Carolin Unseld. "Winter tourism in Germany is much more than skiing! Consumer motives and implications to Alpine destination marketing." Journal of Vacation Marketing 24, no. 3 (February 9, 2017): 203–17. http://dx.doi.org/10.1177/1356766717691806.

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Winter sports tourism is a key economic factor in many mountain regions worldwide. Research to date has concentrated on economic and environmental questions related to winter sports and winter outdoor activities, with the impacts of climate change and adaptation strategies being the dominant fields of discussion. An analysis of German winter holidays indicates that winter sports are only one of several product types. The fact that the majority of German travellers prefer long-haul warm weather destinations in the winter raises the question of triggering factors for winter holiday trips. A qualitative study based on a Germany-wide online discussion forum analyses all aspects of winter trips. It centres on people’s everyday life during the winter and their linked emotions, travel motives, destination choices and general expectations, in particular with relation to trips to Alpine destinations. The results show that the grey winter weather and factors such as cold, humidity, lack of sun and dull atmosphere are the dominant factors in the desire to escape on a holiday trip. Non-skiers expect snow-covered landscapes and an environment conducive to relaxation-related activities and are therefore likely to be looking for sustainable winter products. This supports Alpine destination managers who are developing sustainable winter products in addition to winter sports in order to become more competitive in the non-skier market.

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Starczewski, Michał, Piotr Żmijewski, Katarzyna Witek, and Andrzej Klusiewicz. "Physiological Aspects of Different Roller Skiing Techniques in Field Conditions." Journal of Human Kinetics 66, no. 1 (March 27, 2019): 111–20. http://dx.doi.org/10.2478/hukin-2018-0052.

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AbstractThe main goal of the study was to evaluate the impact of different roller skiing techniques (classical CT and skating ST) performed under field conditions on physical capacity variables in cross-country skiers. The second purpose was to evaluate the possibility to use the test results conducted under field and laboratory conditions interchangeably to determine training loads. Eight international-level cross-country skiers (4 male, 4 female) with 8.8 ± 1.3 years of skiing experience took part in the study. The athletes performed three graded tests to exhaustion: two under field conditions (roller skiing CT and ST techniques) and one in the laboratory: treadmill running (TR). All tests were conducted within a period of two weeks to compare general and specific physical capacity outcomes. ANOVA demonstrated significant differences in the threshold heart rate (HRAT4) (ST 175.3 ± 10.8 bpm, CT 175.8 ± 10.9 bpm, TR 181.5 ± 11.1 bpm; p = 0.004), maximal oxygen uptake (VO2max) (ST 64.0 ± 4.65 ml/kg/min, CT 61.5 ± 5.09 ml/kg/min, TR 65.9 ± 2.30 ml/kg/min; p = 0.008) and maximal HR (ST 189.3 ± 10.9 bpm, CT 188.9 ± 10.6 bpm, TR 199.5 ± 10.3 bpm; p = 0.002). No significant differences were observed between classical and skating roller skiing techniques for maximal and threshold values except for threshold velocity (CT 13.4 ± 1.11 km/h vs. ST 14.7 ± 1.17 km/h p = 0.002). Maximal velocity was not measured. The main finding of the study is that it is possible to use threshold HR values obtained in roller skiing tests performed using the classical or skating techniques interchangeably to determine roller skiing training loads. The results of the study indicate that there is a need to verify maximal treadmill running exertion variables in specific roller skiing tests.

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Harrison, Paul Garth. "Mechanisms of seed dormancy in an annual population of Zostera marina (eelgrass) from The Netherlands." Canadian Journal of Botany 69, no. 9 (September 1, 1991): 1972–76. http://dx.doi.org/10.1139/b91-247.

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Mechanisms of dormancy of seeds from an annual population of the seagrass Zostera marina L. (eelgrass) in the SW Netherlands were investigated in the laboratory. Both physiological dormancy (a requirement for reduced salinity for germination) and physical dormancy (imposed by the seed coat) existed in recently shed seeds. Physiological seed dormancy was partly released in the seed bank by early winter, but physical dormancy lasted longer. By March seeds germinated quickly in the dark in full-strength seawater without artificial weakening of the seed coat. Viable seeds were released with coats that ranged from green (easily ruptured by the embryo) to brown (not easily ruptured); this variation may account for the occasional seedlings that appear during winter. No significant effects of temperature or light on germination were detected. A reexamination of the literature suggests that the observed variation in timing of germination in eelgrass populations may be a result of hitherto overlooked aspects of dormancy. Key words: eelgrass, seagrass, seed coat, seed dormancy, seed germination, Zostera marina.

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Erdumlu, Nazan, and Canan Saricam. "Investigating the effect of some fabric parameters on the thermal comfort properties of flat knitted acrylic fabrics for winter wear." Textile Research Journal 87, no. 11 (June 17, 2016): 1349–59. http://dx.doi.org/10.1177/0040517516652347.

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In this paper, the thermal comfort properties of flat knitted acrylic fabrics differing in terms of knit structure, tightness, thickness and porosity were investigated within the perspective of its usage in winter wear products. Measured and calculated using the data from Permetest and Alambeta devices, the thermal comfort properties were handled in three aspects, namely thermoregulation characteristics, breathability and thermo-physiological characteristics, and their relationship with fabric structural parameters were investigated statistically. The results indicated that rib 2 × 2 structures provide the optimum condition in terms of thermoregulation, breathability and thermo-physiological comfort, whose thickness and porosity values should be adjusted accordingly, since the thickness improves thermal insulation and porosity improves breathability.

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JACKO, JULIE A., and RICHARD J. KOUBEK. "The psychological, physiological and engineering aspects of interactive systems design." Ergonomics 46, no. 1-3 (January 2003): 1–2. http://dx.doi.org/10.1080/00140130303532.

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Tamburini, P., and R. Stagni. "Variability and stability indexes in Dual-Task condition: Methodological and physiological aspects." Gait & Posture 49 (September 2016): S8—S9. http://dx.doi.org/10.1016/j.gaitpost.2016.07.034.

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Song, Yang, Wei Zhang, Liang Zhao, Dong Sun, Ying Huang, and Yaodong Gu. "Sports-Related Injuries Sustained by Disabled Athletes in Winter Paralympic Games: A Systematic Review." Journal of Medical Imaging and Health Informatics 10, no. 5 (May 1, 2020): 1136–43. http://dx.doi.org/10.1166/jmihi.2020.3012.

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Purpose: This review aimed to analyze and summarize current literature related to the characteristics, incidence of injuries of different winter Paralympic sports events and to discuss the key aspects that can be used to develop possible prevention strategies for future Winter Paralympic Games. Methods: An electronic search was performed in Google Scholar, PubMed, and Web of Science databases using the following key words: “Paralympic” AND “winter sports” AND “injury” OR “prevention strategy.” Inclusion and exclusion criteria were used to screening all the identified studies. Of 446 identified studies, 11 studies were included. Results: Most studies reported the injuries of disabled athletes in alpine skiing/snowboarding and ice sledge hockey, few studies reported injuries in cross-country skiing/biathlon and wheelchair curling. For these Winter Paralympic athletes, acute, traumatic injuries seem to be more common than overuse or chronic injuries, and alpine skiing and ice sledge hockey have always been the most dangerous winter sports events. However, the rates and injury locations appear to be disability and sport dependent. Results of this review demonstrated that there are 2 key areas in which specific prevention strategies would influence sports injuries and performance in Paralympic winter sports, namely, equipment in winter sports and physical condition of disabled athletes. Conclusion: According to the results, it is apparent that the overall injury rates sustained by disabled athletes are high and can be comparable with injury rates in able-bodied counterparts. While with few studies reported the pattern of injuries and possible prevention strategies, it is difficult to further understand the injury mechanisms and determine effective prevention strategies. Further longitudinal and disability specific studies are much needed.

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Ainslie, Philip N., Iain T. Campbell, Janet P. Lambert, Donald P. M. MacLaren, and Thomas Reilly. "Physiological and Metabolic Aspects of Very Prolonged Exercise with Particular Reference to Hill Walking." Sports Medicine 35, no. 7 (2005): 619–47. http://dx.doi.org/10.2165/00007256-200535070-00006.

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Rankovic, Goran, and Dragan Radovanovic. "Physiological aspects of altitude training and the use of altitude simulators." Srpski arhiv za celokupno lekarstvo 133, no. 5-6 (2005): 307–11. http://dx.doi.org/10.2298/sarh0506307r.

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Altitude training in various forms is widely practiced by athletes and coaches in an attempt to improve sea level endurance. Training at high altitude may improve performance at sea level through altitude acclimatization, which improves oxygen transport and/or utilization, or through hypoxia, which intensifies the training stimulus. This basic physiological aspect allows three training modalities: live high and train high (classic high-altitude training), live low and train high (training through hypoxia), and live high and train low (the new trend). In an effort to reduce the financial and logistical challenges of traveling to high-altitude training sites, scientists and manufactures have developed artificial high-altitude environments, which simulate the hypoxic conditions of moderate altitude (2000-3000 meters). Endurance athletes from many sports have recently started using nitrogen environments, or hypoxic rooms and tents as part of their altitude training programmes. The results of controlled studies on these modalities of high-altitude training, their practical approach, and ethics are summarized.

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Epstein, Yoram, Chen Fleischmann, Ran Yanovich, and Yuval Heled. "Physiological and Medical Aspects That Put Women Soldiers at Increased Risk for Overuse Injuries." Journal of Strength and Conditioning Research 29 (November 2015): S107—S110. http://dx.doi.org/10.1519/jsc.0000000000001079.

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Bausch, Humpe, and Gössling. "Does Climate Change Influence Guest Loyalty at Alpine Winter Destinations?" Sustainability 11, no. 15 (August 5, 2019): 4233. http://dx.doi.org/10.3390/su11154233.

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: Research has dealt extensively with different aspects of climate change and winter tourism such as the impact on ski resorts and ski lift operators, adaptation strategies, governance at destinations and reactions of winter sports guests to changing snow conditions. This paper goes deeper into the question of destination choice and examines the role of climate change among the many factors affecting guest loyalty at Alpine winter destinations. The study uses an established destination choice model with choice sets, destination image and dynamic feedback loop. A qualitative online forum identifies factors influencing winter destination choice, followed by a quantitative survey which compares Alpine winter holidaymakers categorised as “loyal”, “disloyal” and “undecided”. The results demonstrate that climate change clearly influences destination choice, but snow sports are not the only affected attractors. Enjoyment of the natural environment and value for money are just as high on the list of guest motivators. This indicates that climate change adaptation measures such as snowmaking can be counterproductive to guest loyalty because they spoil the natural scenery and raise prices. The paper concludes with a recommendation for winter destinations to prioritize conservation of the natural environment and integrate more environmental protection measures into their management strategies.

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Copete, Miguel Á., José M. Herranz, and Pablo Ferrandis. "Seed germination ecology of the endemic Iberian winter annualsIberis pectinataandZiziphora aragonensis." Seed Science Research 19, no. 3 (September 2009): 155–69. http://dx.doi.org/10.1017/s0960258509990079.

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AbstractThe germination ecology of the winter annual Iberian endemicsIberis pectinataandZiziphora aragonensiswas investigated in order to better understand adaptations of rare species to their natural habitat and to improveex-situpropagation techniques and management of their habitat. Specifically, we analysed the following aspects: (1) influence of temperature, light conditions and seed age on germination patterns; (2) phenology of germination; (3) germinative response of buried seeds to seasonal temperature changes; and (4) temperature requirements for induction and breaking of secondary dormancy. Germination was substantially lower in darkness than with a photoperiod in both taxa, with this difference being more pronounced inZ. aragonensis. Freshly matured seeds showed conditional physiological dormancy, germinating at low and medium temperatures but not at high temperatures (28/14 and 32/18°C). Germination capability increased with time of dry storage in both species, suggesting the existence of non-deep physiological dormancy. Under greenhouse conditions, germination of both taxa was mostly concentrated in autumn (October–November), while spring percentages were less than 1% of total accumulated germination recorded during the study.I. pectinataandZ. aragonensisseeds buried and exposed to natural seasonal temperature variations in an unheated greenhouse came out of conditional dormancy in summer and re-entered it in winter, thus exhibiting an annual conditional dormancy/non-dormancy cycle. Dormant seeds of both species which were stratified at 28/14 or 32/18°C during an 8-week period, were non-dormant when they were subsequently incubated over a range of temperatures from 5 to 25/10°C. Non-dormant seeds were induced into dormancy when stratified at 5 or 15/4°C for 8 weeks, showing a particularly low germination response at high temperatures. Recommendations for wild-population reinforcement programmes and for the management of the natural habitat of both endemics are discussed.

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Ribeiro, Rafael V., and Eduardo C. Machado. "Some aspects of citrus ecophysiology in subtropical climates: re-visiting photosynthesis under natural conditions." Brazilian Journal of Plant Physiology 19, no. 4 (December 2007): 393–411. http://dx.doi.org/10.1590/s1677-04202007000400009.

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In this review we re-visit and discuss the current knowledge on ecophysiology of citrus trees, addressing the influence of environmental conditions on citrus photosynthesis. Knowledge of physiological responses of citrus trees to their surrounding environment is essential in order to improve crop production and plant development, both being consequences of appropriate horticultural management in citrus orchards. In this context, citrus photosynthesis is addressed as the primary source of carbon and energy for plant growth and development. The photosynthetic activity on both a daily and a seasonal scale is reviewed, taking into consideration the physiological aspects related to seasonal variation of photochemical and biochemical activities, stomatal conductance and leaf water potential. These aspects are treated for citrus plants growing in subtropical climates with varying environmental conditions, such as moderate to severe drought during the winter season. In addition, the possible inhibitory/stimulatory effects of carbohydrate metabolism on citrus photosynthesis are discussed with regard to the source-sink relationship. Field experimentation that enhances knowledge concerning citrus ecophysiology in subtropical climates is highlighted. Among interesting subjects to be unraveled by future research, we may point out the effects of low temperatures on citrus photosynthesis and water relations, the nature of the relationship between leaf carbohydrate content and photosynthesis, and the significance of photosynthesis in different canopy layers and positions in relation to the total carbon gain in mature citrus trees.

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Leyva, Arturo. "Ethical aspects of organized contact sports for children as participants." International Journal of Contemporary Pediatrics 7, no. 8 (July 22, 2020): 1823. http://dx.doi.org/10.18203/2349-3291.ijcp20203047.

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This paper seeks to review the literature and address ethical implications of organized contact sports, such as American football and boxing, with significant child or adolescent participation. Child and adolescent sport participation act not only as a leisure activity, but also improves physical health and enhances psychological and social health outcomes. However, playing sports may also have negative physiological effects, such as sports-related concussions (SRCs) - a form of traumatic brain injury (TBI) - which are an emerging public health concern. This paper review and explores ethical implications of contact sports in the scientific literature and demonstrates challenged faced on philosophical deliberation on the ethical implications of SRCs and RHIs due to complexities of these conditions and their identification and treatment involving a wide variety of practical situations, which formal sports rules may not adequately address. Since scholarly literature has yet to arrive at a consensus concerning causal link(s) between contact sports participation and significant concussion-related brain damage, the paper argues in favor of strengthening concussion preventive measures, identification protocols and management procedures in contact sports. This article rejects ethical paternalism on the basis of inconclusive empirical evidence concerning associations between contact sports participation and heightened SRC risk. It also rejects Mill’s argumentation against consensualism and suggests prevention is a better solution over inadequately founded philosophical ethical proposals favoring drastically reforming contact sports.

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Trandafir, Marius, and Lorand Balint. "Planning aspects in training ice hockey players." Annals of "Dunarea de Jos" University of Galati Fascicle XV Physical Education and Sport Management 2 (November 26, 2019): 46–51. http://dx.doi.org/10.35219/efms.2019.2.11.

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Sports training is a long-lasting complex process, organized according to the level of performance and the proposed competitive objective. The study aims at highlighting the planning aspects of the sports training in the preparation of ice hockey players. Training planning is organized according to the team's performance level and the targeted result, thus, it can be classified as follows: stage one, anatomical adaptation, stage two, pre-competition stage, competition stage and the transitional stage. The content of each stage is structured and distributed based on the type of effort specific to the hockey game and the main parameters of effort (volume, intensity, complexity). The research methods used for the elaboration of the study are: the study of specialized literature and the pedagogical observation. Sports training is a pedagogical process, which implies compliance with basic principles that ensure the achievement of the established sporting performance, when the methods and means of training are well chosen, adapted and individualised according to the player's bio-mental-physical abilities and his background on the position in the team.In conclusion, in the course of the sports training process, the physical, physiological, mental and intellectual potential of the sportsman will be improved, through planning and periodization elements, which ensure the achievement of high-level sports performance.

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Bentley, David J., Gregory R. Cox, Daniel Green, and Paul B. Laursen. "Maximising performance in triathlon: Applied physiological and nutritional aspects of elite and non-elite competitions." Journal of Science and Medicine in Sport 11, no. 4 (July 2008): 407–16. http://dx.doi.org/10.1016/j.jsams.2007.07.010.

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Frystyk, Jan. "Physiological and Pathophysiological Aspects of the GHIGF-I and Cytokine Axes: Interaction with Physical Activity." Medicine & Science in Sports & Exercise 40, Supplement (May 2008): 38. http://dx.doi.org/10.1249/01.mss.0000320844.71913.b2.

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Davis, Paul A., and Andreas Stenling. "Temporal aspects of affective states, physiological responses, and perceived exertion in competitive cycling time trials." Scandinavian Journal of Medicine & Science in Sports 30, no. 10 (July 23, 2020): 1859–68. http://dx.doi.org/10.1111/sms.13766.

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McCAIG, R. H., and C. Y. GOODERSON. "Ergonomic and physiological aspects of military operations in a cold wet climate." Ergonomics 29, no. 7 (July 1986): 849–57. http://dx.doi.org/10.1080/00140138608967197.

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Liguori, G., C. Di Miceli, G. Gugliuzza, and P. Inglese. "Physiological and Technical Aspects of Cactus Pear [Opuntia ficus-indica(L.) Mill.] Double Rellowering and Out-of-Season Winter Fruit Cropping." International Journal of Fruit Science 6, no. 3 (June 27, 2007): 23–34. http://dx.doi.org/10.1300/j492v06n03_03.

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Journal articles on the topic 'Physiological aspects of Winter sports'

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