Download or read book Anaerobic Metabolic Responses of Males and Females to Supramaximal Exercise written by Marianne Vest and published by . This book was released on 1983 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Metabolic Responses to Supramaximal Exercise and Training written by Clare L. Weber and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: The primary aim of this thesis was to investigate the gender-specific responses to supramaximal cycling and to examine the changes in anaerobic and aerobic metabolism that occur in response to high-intensity interval training (HIT). All subjects in the present experiments were untrained, healthy young adults aged between 18 and 35 yr. Cycle ergometry was used for all experimental test procedures and training programs. The accumulated oxygen (AO2) deficit was used to quantify the production of adenosine triphosphate (ATP) via anaerobic metabolism during supramaximal cycling. In addition, pulmonary oxygen uptake measured at the onset of exercise was described using mathematical modeling to determine the rate response of the aerobic energy system during exercise. The purpose of experiment one was to examine the test-retest reliability of the maximal accumulated oxygen deficit (MAOD) measured at 110% and 120% of peak oxygen uptake for cycling in seven untrained male and seven untrained female subjects. After one familiarization trial, all subjects performed two MAOD tests at a power output corresponding to 110% and two tests at 120% of peak oxygen uptake in random order. MAOD was calculated for each subject as the difference between the estimated AO2 demand and the AO2 uptake measured during the exercise bout. The meanplus or minusstandard error time to exhaustion (TE) for the group was not significantly different between trial one (226plus or minus13 s) and trial two (223plus or minus14 s) of the 110% test. Likewise, the difference in the TE between trial one (158plus or minus11 s) and trial two (159plus or minus10 s) was not significant for the 120% test. The intra-class correlation coefficients for the TE were 0.95 for the 110% test and 0.98 for the 120% test. The mean MAOD value obtained in trial one (2.62plus or minus0.17 L) was not significantly different from the mean value obtained in trial two (2.54plus or minus0.19 L) for the 110% test. Additionally, the mean values for the two trials did not differ significantly for MAOD (2.64plus or minus0.21 L for trial one and 2.63plus or minus0.19 L for trial two) in the 120% test. The intra-class correlation coefficients for MAOD were 0.95 for the 110% test and 0.97 for the 120% test. All intra-class correlation coefficients were significant at p less than 0.001. When conducted under standardized conditions, the determination of MAOD for cycling was highly repeatable at both 110% and 120% of peak oxygen uptake in untrained male and female subjects. The results observed in experiment one suggest that the MAOD may be used to compare the anaerobic capacity (AC) of men and women and to examine changes in the contribution of the anaerobic energy systems before and after training. Experiment two examined the gender-specific differences in MAOD before and after 4 and 8 wk of HIT. Untrained men (n=7) and women (n=7) cycled at 120% of pre-training peak oxygen uptake to exhaustion (MAOD test) pre-, mid-, and post-training. A post-training timed test was also completed at the MAOD test power output, but this test was stopped at the TE achieved during the pre-training MAOD test. The 14.3plus or minus5.2% increase in MAOD observed in males after 4 wk of training was not different from the 14.0plus or minus3.0% increase seen in females (p greater than 0.05). MAOD increased by a further 6.6plus or minus1.9% in males and this change was not different from the additional 5.1plus or minus2.3% increase observed in females after the final 4 wk of training. Peak oxygen uptake measured during incremental cycling increased significantly (p less than 0.01) in male but not in female subjects after 8 wk of training. Moreover, the AO2 uptake was higher in men during the post-training timed test compared to the pre-training MAOD test (p less than 0.01). In contrast, the AO2 uptake was unchanged from pre- to post-training in female subjects. The increase in MAOD with training was not different between men and women suggesting an enhanced ability to produce ATP anaerobically in both groups. However, the increase in peak oxygen uptake and AO2 uptake obtained in male subjects following training indicates improved oxidative metabolism in men but not in women. It was concluded that there are basic gender differences that may predispose males and females to specific metabolic adaptations following an 8-wk period of HIT. Increases in AO2 uptake during supramaximal cycling demonstrated in men after training led to the hypothesis that peak oxygen uptake kinetics are speeded in male subjects with short-term HIT. It was suggested that training does not improve peak oxygen uptake kinetics in women as no change in AO2 uptake was found after 8 wk of HIT in female subjects. The purpose of experiment three was to examine peak oxygen uptake kinetics before and after 8 wk of HIT in six men and six women during cycling at 50% (50% test) and 110% (110% test) of pre-training peak oxygen uptake. A single-term exponential equation was used to model the peak oxygen uptake response (after phase I) during the 50% and 110% tests pre- and post-training. In addition, phase II and III of the peak oxygen uptake response during the 110% tests were examined using a two-term equation. The end of the phase I peak oxygen uptake response was identified visually and omitted from the modeling process. The duration of phase I determined during all experimental tests was not different between men and women and did not change with training in either group. Before training, men obtained a phase II peak oxygen uptake time constant (t2) of 29.0plus or minus3.3 s during the 50% test which was not different to the t2 of 28.8plus or minus2.2 s attained by women. In addition, the t2 determined during the 50% test was unchanged after 8 wk of HIT in both groups. The peak oxygen uptake kinetics examined during the 110% tests before training were well described by a single-term model in all male and female subjects. The t2 determined before training for the 110% test was significantly faster in men than in women. Furthermore, peak oxygen uptake was unchanged in female subjects and the t2 remained unaltered with 8 wk HIT (pre 45.5plus or minus2.2; post 44.8plus or minus2.3 s). In contrast, male subjects achieved a significantly higher peak oxygen uptake after training and the t2 determined for men during the 110% test was faster after training (36.4plus or minus1.6 s) than before training (40.1plus or minus 1.9 s). Improved model fits were obtained with the two-term equation compared to the single-term equation in two of the six male subjects during the 110% test post-training. It was found that the onset of the peak oxygen uptake slow component occurred at a mean time of 63.5plus or minus2.5 s and the t2 was reduced to 18.4plus or minus1.7 s. Using a Wilcoxon Signed Ranks z-test, the t2 described by the single-term equation in the remaining four subjects was determined to be significantly faster after training than before training, thus confirming the results obtained from the original group (n=6) of male subjects. End exercise heart rate (HREE) values obtained during the 50% and 110% tests were not different between men and women. During the 50% test, HREE values were unchanged, whereas HREE was significantly decreased during the 110% test after training in both groups. These data show that HIT might improve oxidative metabolism in men but not in women as reflected by a greater peak oxygen uptake and faster peak oxygen uptake kinetics during supramaximal work rates. We further suggest that the faster peak oxygen uptake kinetics demonstrated in men after training are probably not due to an improvement in cardiac function. Finally, the augmentation of oxidative metabolism during exercise after HIT in men might be dependent on the intensity of the exercise bout at which the peak oxygen uptake response is examined. The findings presented in this thesis suggest that MAOD is a reliable measure in both male and female subjects and can be used to monitor changes in anaerobic ATP production during supramaximal cycling. Moreover, these data suggest that 4 and 8 wk of HIT produce similar changes in anaerobic ATP generation in men and women. Finally, 8 wk of HIT results in the increase of peak oxygen uptake and AO2 uptake as well as the speeding of peak oxygen uptake kinetics during supramaximal cycling in male subjects. There was no evidence to suggest that oxidative metabolism was improved in women after short-term HIT. -- In conclusion, improvement in supramaximal exercise performances should be examined specifically for changes in the anaerobic and aerobic contributions to energy production. In addition, it is suggested that gender should be of primary consideration when designing exercise-training programs where improvement in both anaerobic and aerobic metabolism is required.
Download or read book Anaerobic Metabolism of Males and Females in Relation to Body Composition written by Janelle Pohlman O'Connell and published by . This book was released on 1979 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biology of Sport written by and published by . This book was released on 1996 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biology of Sport publishes reports of methodological and experimental work on science of sport, natural sciences, medicine and pharmacology, technical siences, biocybernetics and application of statistics and psychology, with priority for inter-discyplinary papers. Brief reviews of monographic papers on problems of sport, information on recent developments in research equipment and training aids, are also published. Papers are invided from researchers, coaches and all authors engaged in problems of trining effects, selection in sport as well as biological and social effects of athletic activity durning various periods of man's ontogenetic development.
Download or read book Biology of Sport written by and published by . This book was released on 1996 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biology of Sport publishes reports of methodological and experimental work on science of sport, natural sciences, medicine and pharmacology, technical siences, biocybernetics and application of statistics and psychology, with priority for inter-discyplinary papers. Brief reviews of monographic papers on problems of sport, information on recent developments in research equipment and training aids, are also published. Papers are invided from researchers, coaches and all authors engaged in problems of trining effects, selection in sport as well as biological and social effects of athletic activity durning various periods of man's ontogenetic development.
Download or read book Paediatric Exercise Science and Medicine written by Neil Armstrong and published by Oxford University Press, USA. This book was released on 2008-10-23 with total page 669 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text explains the principles of developmental exercise science, assessment of performance, the promotion of young people's health and well-being, and the clinical diagnosis and management of sports injuries in children and adolescents.
Download or read book Biology of Sport written by and published by . This book was released on 1996 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biology of Sport publishes reports of methodological and experimental work on science of sport, natural sciences, medicine and pharmacology, technical siences, biocybernetics and application of statistics and psychology, with priority for inter-discyplinary papers. Brief reviews of monographic papers on problems of sport, information on recent developments in research equipment and training aids, are also published. Papers are invided from researchers, coaches and all authors engaged in problems of trining effects, selection in sport as well as biological and social effects of athletic activity durning various periods of man's ontogenetic development.
Download or read book Biology of Sport written by and published by . This book was released on 1996 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biology of Sport publishes reports of methodological and experimental work on science of sport, natural sciences, medicine and pharmacology, technical siences, biocybernetics and application of statistics and psychology, with priority for inter-discyplinary papers. Brief reviews of monographic papers on problems of sport, information on recent developments in research equipment and training aids, are also published. Papers are invided from researchers, coaches and all authors engaged in problems of trining effects, selection in sport as well as biological and social effects of athletic activity durning various periods of man's ontogenetic development.
Download or read book Biology of Sport written by and published by . This book was released on 1995 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biology of Sport publishes reports of methodological and experimental work on science of sport, natural sciences, medicine and pharmacology, technical siences, biocybernetics and application of statistics and psychology, with priority for inter-discyplinary papers. Brief reviews of monographic papers on problems of sport, information on recent developments in research equipment and training aids, are also published. Papers are invided from researchers, coaches and all authors engaged in problems of trining effects, selection in sport as well as biological and social effects of athletic activity durning various periods of man's ontogenetic development.
Download or read book Exercise Physiology for Health Fitness and Performance written by Sharon Plowman and published by Lippincott Williams & Wilkins. This book was released on 2007-06-01 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook integrates basic exercise physiology with research studies to stimulate learning, allowing readers to apply principles in the widest variety of exercise and sport science careers. It combines basic exercise physiology with special applications and contains flexible organisation of independent units.
Download or read book Cumulated Index Medicus written by and published by . This book was released on 2000 with total page 1844 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Physical Fitness sports Medicine written by and published by . This book was released on 1990 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biology of Sport written by and published by . This book was released on 1995 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biology of Sport publishes reports of methodological and experimental work on science of sport, natural sciences, medicine and pharmacology, technical siences, biocybernetics and application of statistics and psychology, with priority for inter-discyplinary papers. Brief reviews of monographic papers on problems of sport, information on recent developments in research equipment and training aids, are also published. Papers are invided from researchers, coaches and all authors engaged in problems of trining effects, selection in sport as well as biological and social effects of athletic activity durning various periods of man's ontogenetic development.
Download or read book Essentials of Creatine in Sports and Health written by Jeffrey R. Stout and published by Springer Science & Business Media. This book was released on 2009-12-30 with total page 255 pages. Available in PDF, EPUB and Kindle. Book excerpt: With all of the misinformation regarding the effects of creatine supplementation on health and sports performance, this book brings together the information on how creatine affects body composition, exercise performance, and health. Supported by the International Society of Sports Nutrition, this volume is timely and vital for all professionals in the field of sports nutrition.
Download or read book Nutrition and Enhanced Sports Performance written by Debasis Bagchi and published by Academic Press. This book was released on 2018-10-05 with total page 820 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nutrition and Enhanced Sports Performance: Muscle Building, Endurance and Strength, Second Edition, includes comprehensive sections on the role of nutrition in human health, various types of physical exercises, including cardiovascular training, resistance training, aerobic and anaerobic exercises, bioenergetics and energy balance, and the nutritional requirements associated with each. Other sections cover sports and nutritional requirements, the molecular mechanisms involved in muscle building, an exhaustive review of various foods, minerals, supplements, phytochemicals, amino acids, transition metals, competition training, healthy cooking, physical training, and lifestyle and dietary recommendations for sports performance. This updated edition includes new chapters on mood, alertness, calmness and psychomotor performance in sports, extreme sports, natural myostatin inhibitor and lean body mass, the benefits of caffeine in sport nutrition formulations, the role of vitamin D in athletic performance, probiotics and muscle mass. Provides a comprehensive appraisal of the nutritional benefits of exercise in human health Compiles chapters reviewing the nutritional prophylaxis in human health Addresses performance enhancement drugs and sports supplements Presents various types of physical exercises and addresses exercise and nutritional requirements in special populations Discusses sports nutrition and the molecular mechanisms involved in muscle building Contains an exhaustive review of various food, minerals, supplements, phytochemicals, amino acids, transition metals, small molecules and other ergogenic agents Highlights the aspects of healthy cooking, physical training, lifestyle and dietary recommendations for sports performance
Download or read book Biology of Sport written by and published by . This book was released on 1996 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biology of Sport publishes reports of methodological and experimental work on science of sport, natural sciences, medicine and pharmacology, technical siences, biocybernetics and application of statistics and psychology, with priority for inter-discyplinary papers. Brief reviews of monographic papers on problems of sport, information on recent developments in research equipment and training aids, are also published. Papers are invided from researchers, coaches and all authors engaged in problems of trining effects, selection in sport as well as biological and social effects of athletic activity durning various periods of man's ontogenetic development.
Download or read book Sympathoadrenal Response to Resistance Exercise in Men Women and Pubescent Boys written by Teemu Pullinen and published by . This book was released on 2001 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: Yhteenveto.
