Download or read book The Effect of Exercise Intensity on Post exercise Metabolism in Trained Male Cyclists written by Jacquilyn L. Gallagher and published by . This book was released on 1990 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effects of Additional Exercise Stimulus on Metabolic Rate of Trained Male Cyclists written by Bethany Ann Cone and published by . This book was released on 1993 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Excess Postexercise Oxygen Consumption written by Roald Bahr and published by . This book was released on 1992 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effects of Exercise Intensity on Post exercise Fat Metabolism written by Dana Lynne Schaulis and published by . This book was released on 1993 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Exercise Metabolism written by Mark Hargreaves and published by Human Kinetics. This book was released on 2006 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive reference for biochemists, sport nutritionists, exercise physiologists, and graduate students in those disciplines. Provides information on the metabolic processes that take place during exercise, examining in depth the mobilization and utilization of substrates during physical activity. Focuses primarily on the skeletal muscle, but also discusses the roles of the liver and adipose tissue. Annotation copyright by Book News, Inc., Portland, OR

Download or read book The Effect of Exercise Intensity on Postexercise Metabolism written by Richard J. Keleher and published by . This book was released on 1992 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Exercise Metabolism written by Glenn McConell and published by Springer Nature. This book was released on 2022-07-18 with total page 405 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this Edited Volume, a diverse group of exercise metabolism experts, assembled a multi-facetted collection of fascinating contributions. The chapters focus on metabolism during exercise, including anaerobic and aerobic metabolism, carbohydrate metabolism (separate chapters on muscle glycogen and blood glucose), fat metabolism (separate chapters on muscle and adipose tissue) and protein metabolism. Readers will find discussion on various tissues in addition to skeletal muscle, such as liver, heart and brain metabolism during exercise. In addition, the book includes chapters on other perspectives such as thermodynamic and bioenergetic aspects of exercise and a dive into history. Another focal point is on the effects of exercise in relation to training, age, sex, fatigue and the circadian rhythm. This contemporary collection will be an essential resource for Physiologists, Sports Scientists, Coaches, Athletes and students alike.

Download or read book Elite Youth Cycling written by Alfred Nimmerichter and published by Routledge. This book was released on 2018-09-03 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: Elite Youth Cycling showcases the latest cutting-edge research in youth cycling performance. Covering both endurance and sprint cycling events, the book explores the effect of cycling on the maturation of the body from childhood to adolescence, suggests long-term training and nutritional strategies for young athletes, and discusses issues such as injury prevention, long-term athlete health, and body image in endurance cyclists. Divided into sections on growth and maturation, training and testing, sports medicine and nutrition, and coaching and psychology, the book includes chapters on: Muscle, bone and cardiopulmonary development of young cyclists Performance assessment in the laboratory and on the track Longitudinal training strategies and concurrent strength training Overuse injuries and injury prevention Nutrition and ergogenic aids Personal and psychosocial development Including directions for future research in each section, Elite Youth Cycling is an authoritative and comprehensive anthology of the latest research in youth cycling. It is vital reading for any physiologist, psychologist, strength and conditioning coach or sport therapist working with young cyclists, and any academic researching youth sport and the development of young athletes.

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 Gender Differences in Metabolism written by Mark Tarnopolsky and published by CRC Press. This book was released on 1998-11-23 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gender Differences in Metabolism: Practical and Nutritional Implications is the first book to successfully integrate nutritional science, exercise physiology/medicine, and metabolism. This volume explores recent scientific evidence that male and female athletes exhibit different metabolic responses and, therefore, differ in their nutritional needs and advice. Anyone interested in good health, exercise, and nutrition will find this book a valuable resource.

Download or read book Interaction of Carbohydrate Intake and Exercise Intensity on Carbohydrate Sparing After Exercise written by Mohamad Haiyum Jaafar and published by . This book was released on 2011 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt: [Truncated abstract] It is well established that an increase in exercise intensity is generally associated with a decrease in the proportion of CHO oxidised during recovery, thus promoting the sparing of CHO for subsequent exercise bouts. In contrast, the proportion of CHO oxidised in response to a meal ingested after exercise has been reported to be unaffected by exercise intensity. This latter finding might be explained on the basis that large amounts of CHO were fed after exercise in some studies, thus raising the possibility that this may have overridden any CHO sparing during the post-exercise period. Moreover, since the temporal pattern of change in CHO and fat oxidation after meal ingestion was not examined in previous studies, it is possible that CHO sparing at particular points in time might have gone undetected. For these reasons, this study re-examines the extent to which the amount of CHO fed post-exercise affect over time the impact of exercise intensity on the proportion of CHO and fat oxidised during recovery. Twelve physically active males completed four experimental treatments following a counterbalanced randomised design: 1) High intensity exercise (cycling at 70% VO2peak for 60 min) followed by a low-CHO meal (LCHE) , 2) low intensity exercise (cycling at 35%VO2peak for 120 min) followed by a low-CHO meal (LCLE), 3) high intensity exercise (cycling at 70% VO2peak for 60 min) followed by a high-CHO meal (HCHE) and 4) low intensity exercise (cycling at 35%VO2peak for 120 min) followed by a high- CHO meal (HCLE). Before, during and after exercise, respiratory gases and blood were sampled at selected time intervals. During the first hour of recovery without food, the rates of CHO oxidation were significantly lower following high compared to low intensity exercise (P

Download or read book Effect of Exercise Intensity and Duration on Postexercise Metabolism in Obese Adults written by David B. Creel and published by . This book was released on 1995 with total page 202 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 Regulation of Endurance Performance New Frontiers written by Alexis R. Mauger and published by Frontiers Media SA. This book was released on 2017-11-22 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: Successful endurance performance requires the integration of multiple physiological and psychological systems, working together to regulate exercise intensity in a way that will reduce time taken or increase work done. The systems that ultimately limit performance of the task are hotly contested, and may depend on a variety of factors including the type of task, the environment, external influences, training status of the individual and a host of psychological constructs. These factors can be studied in isolation, or inclusively as a whole-body or integrative system. A reductionist approach has traditionally been favoured, leading to a greater understanding and emphasis on muscle and cardiovascular physiology, but the role of the brain and how this integrates multiple systems is gaining momentum. However, these differing approaches may have led to false dichotomy, and now with better understanding of both fields, there is a need to bring these perspectives together. The divergent viewpoints of the limitations to human performance may have partly arisen because of the different exercise models studied. These can broadly be defined as open loop (where a fixed intensity is maintained until task disengagement), or closed loop (where a fixed distance is completed in the fastest time), which may involve whole-body or single-limb exercise. Closed loop exercise allows an analysis of how exercise intensity is self-regulated (i.e. pacing), and thus may better reflect the demands of competitive endurance performance. However, whilst this model can monitor changes in pacing, this is often at the expense of detecting subtle differences in the measured physiological or psychological variables of interest. Open loop exercise solves this issue, but is limited by its more restrictive exercise model. Nonetheless, much can be learnt from both experimental approaches when these constraints are recognised. Indeed, both models appear equally effective in examining changes in performance, and so the researcher should select the exercise model which can most appropriately test the study hypothesis. Given that a multitude of both internal (e.g. muscle fatigue, perception of effort, dietary intervention, pain etc.) and external (e.g. opponents, crowd presence, course topography, extrinsic reward etc.) factors likely contribute to exercise regulation and endurance performance, it may be that both models are required to gain a comprehensive understanding. Consequently, this research topic seeks to bring together papers on endurance performance from a variety of paradigms and exercise models, with the overarching aim of comparing, examining and integrating their findings to better understand how exercise is regulated and how this may (or may not) limit performance.

Download or read book Post exercise Oxygen Consumption written by Karen Elizabeth Chad and published by . This book was released on 1988 with total page 590 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Food Components to Enhance Performance written by Institute of Medicine and published by National Academies Press. This book was released on 1994-02-01 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt: The physiological or psychological stresses that employees bring to their workplace affect not only their own performance but that of their co-workers and others. These stresses are often compounded by those of the job itself. Medical personnel, firefighters, police, and military personnel in combat settingsâ€"among othersâ€"experience highly unpredictable timing and types of stressors. This book reviews and comments on the performance-enhancing potential of specific food components. It reflects the views of military and non-military scientists from such fields as neuroscience, nutrition, physiology, various medical specialties, and performance psychology on the most up-to-date research available on physical and mental performance enhancement in stressful conditions. Although placed within the context of military tasks, the volume will have wide-reaching implications for individuals in any job setting.

Download or read book The Effects of Differing Temperatures on Glycogen Restoration in Trained Female and Male Cyclists Following Moderate Intensity Exercise written by Michael J. Carper and published by . This book was released on 2003 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: