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The Effect Of Caffeine Ingestion On Cardiovascular And Thermoregulatory Function During Maximal And Submaximal Exercise
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Book Synopsis The Effect of Caffeine Ingestion on Cardiovascular and Thermoregulatory Function During Maximal and Submaximal Exercise by : Jeff Miller
Download or read book The Effect of Caffeine Ingestion on Cardiovascular and Thermoregulatory Function During Maximal and Submaximal Exercise written by Jeff Miller and published by . This book was released on 1985 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Aeronautics and Space Adm Nasa Publisher :Independently Published ISBN 13 :9781730896002 Total Pages :62 pages Book Rating :4.8/5 (96 download)
Book Synopsis Thermoregulatory Effects of Caffeine Ingestion During Rest and Exercise in Men by : National Aeronautics and Space Adm Nasa
Download or read book Thermoregulatory Effects of Caffeine Ingestion During Rest and Exercise in Men written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2018-11-06 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: Body temperatures and thermoregulatory responses were measured at rest and during submaximal exercise under normal ambient conditions in 11 aerobically-conditioned men (age = 29.2 +/- 6.2 yr, VO2(max) = 3.73 +/- 0.46 min(sup -1), relative body fat = 12.3 +/- 3.7 percent, mean +/- SD) with (CT) and without (NCT) the ingestion of 10 mg of caffeine per kg of body weight. Oxygen uptake (VO2), heart rate (HR), and rectal (T(sub re)) and mean skin (T-bar(sub sk)) temperatures were recorded for 100 minutes starting one minute after ingestion of caffeine or a placebo. Data were collected throughout 30 minutes of rest (sitting) and the following 70 minutes of sitting leg ergometer exercise using the same constant load (1,088 +/- 153 kgm/min) in both NCT and CT. The load resulted in a mean relative exercise intensity equal to approximately 68 percent of VO2(sub max). Skin heat conductance (H(sub sk)) and sweat rate were calculated. Two-way analysis of covariance revealed no significant (P greater than 0.05) differences between NCT and CT in VO2, HR, T(sub re), T-bar(sub sk), or H(sub sk). A dependent t-test indicated no significant difference between NCT and CT in sweat rate. Thus, a high level of caffeine ingestion has no detrimental effects on body temperatures and thermoregulatory responses during moderately heavy exercise in normal ambient conditions. Dunagan, Nancy and Greenleaf, John E. and Cisar, Craig J. Ames Research Center...
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781722840679 Total Pages :62 pages Book Rating :4.8/5 (46 download)
Book Synopsis Thermoregulatory Effects of Caffeine Ingestion During Rest and Exercise in Men by : National Aeronautics and Space Administration (NASA)
Download or read book Thermoregulatory Effects of Caffeine Ingestion During Rest and Exercise in Men written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-17 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: Body temperatures and thermoregulatory responses were measured at rest and during submaximal exercise under normal ambient conditions in 11 aerobically-conditioned men (age = 29.2 +/- 6.2 yr, VO2(max) = 3.73 +/- 0.46 min(sup -1), relative body fat = 12.3 +/- 3.7 percent, mean +/- SD) with (CT) and without (NCT) the ingestion of 10 mg of caffeine per kg of body weight. Oxygen uptake (VO2), heart rate (HR), and rectal (T(sub re)) and mean skin (T-bar(sub sk)) temperatures were recorded for 100 minutes starting one minute after ingestion of caffeine or a placebo. Data were collected throughout 30 minutes of rest (sitting) and the following 70 minutes of sitting leg ergometer exercise using the same constant load (1,088 +/- 153 kgm/min) in both NCT and CT. The load resulted in a mean relative exercise intensity equal to approximately 68 percent of VO2(sub max). Skin heat conductance (H(sub sk)) and sweat rate were calculated. Two-way analysis of covariance revealed no significant (P greater than 0.05) differences between NCT and CT in VO2, HR, T(sub re), T-bar(sub sk), or H(sub sk). A dependent t-test indicated no significant difference between NCT and CT in sweat rate. Thus, a high level of caffeine ingestion has no detrimental effects on body temperatures and thermoregulatory responses during moderately heavy exercise in normal ambient conditions. Dunagan, Nancy and Greenleaf, John E. and Cisar, Craig J. Ames Research Center...
Book Synopsis Thermoregulatory Effects of Caffeine Ingestion During Rest and Exercise in Men by : Nancy A. Dunagan
Download or read book Thermoregulatory Effects of Caffeine Ingestion During Rest and Exercise in Men written by Nancy A. Dunagan and published by . This book was released on 1994 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effects of Caffeine Ingestion on Cardiorespiratory Functions Temperature Regulation and Endurance Capacity During Submaximal Exercise by : Ephraim Eyo Inameti
Download or read book The Effects of Caffeine Ingestion on Cardiorespiratory Functions Temperature Regulation and Endurance Capacity During Submaximal Exercise written by Ephraim Eyo Inameti and published by . This book was released on 1988 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Cardiovascular and Themoregulatory Responses to Ice Slurry Ingestion During Heat Stress by : Jason Ng
Download or read book Cardiovascular and Themoregulatory Responses to Ice Slurry Ingestion During Heat Stress written by Jason Ng and published by . This book was released on 2015 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fluid ingestion has been reported to influence cardiovascular and thermoregulatory function, thereby affecting exercise performance. It remains unclear whether ice slurry ingestion during exercise results in similar effects. Three experiments examined thermal-, cardiovascular-, and exercise-related responses to ice slurry ingestion. In the first study, participants in firefighter protective clothing walked at ~7 METs in 35 °C while ingesting carbohydrate-electrolyte beverages as a tepid fluid, cold fluid, and ice slurry in a counterbalanced repeated measures study design. When ingested in large quantities and during uncompensable heat stress, ice slurry ingestion mitigated physiological strain by attenuating the rise in heart rate and rectal temperature. In a second study, cardiovascular drift (CV drift) was measured during 45 min of cycling at 60% maximal oxygen uptake (V̇O2max) in 35 °C, immediately followed by measurement of V̇O2max. Participants ingested fluid and ice slurry during two counterbalanced trials of exercise. CV drift was attenuated with ice slurry ingestion but V̇O2max was unaffected. In a third study, participants ingested ice slurry or cold fluid ad libitum while cycling at 50% maximal workload in 35 °C, immediately followed by a 15-min time trial during which participants completed as much work as possible. Compared to the fluid treatment, participants consumed half as much ice slurry, but total work completed during the time trial was not different. In conclusion, ice slurry ingestion blunts physiological strain during conditions in which evaporative heat loss is impaired, such as when wearing occlusive coverings. Furthermore, ice slurry ingestion attenuates the magnitude of CV drift during exercise in the heat, but this does not blunt the decrease in V̇O2max associated with exercise in hot conditions. Lastly, a smaller quantity of ice slurry is voluntarily ingested compared to cold fluid during prolonged submaximal exercise in the heat, but this does not differentially affect exercise performance.
Book Synopsis Physical Fitness/sports Medicine by :
Download or read book Physical Fitness/sports Medicine written by and published by . This book was released on 1983 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: Quarterly. Covers medical aspects of exercise, exercise physiology, physical conditioning, and sports injuries. Includes worldwide journals and some papers presented at selected congresses. Index medicus format with subject and author listings.
Book Synopsis Endurance in Sport by : R. J. Shephard
Download or read book Endurance in Sport written by R. J. Shephard and published by John Wiley & Sons. This book was released on 2008-04-30 with total page 1008 pages. Available in PDF, EPUB and Kindle. Book excerpt: Endurance in Sport is a comprehensive and authoritative work on all aspects of this major component of sports science. The book also embraces medical and sport-specific issues of particular relevance to those interested in endurance performance. The scientific basis and mechanisms of endurance - physiological, psychological, genetic and environmental - are all considered in depth. Measurement of endurance is extensively reviewed as is preparation and training for physical activities requiring endurance.
Download or read book Cumulated Index Medicus written by and published by . This book was released on 1987 with total page 1220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Essentials of Exercise Physiology by : William D. McArdle
Download or read book Essentials of Exercise Physiology written by William D. McArdle and published by Lippincott Williams & Wilkins. This book was released on 2006 with total page 794 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fully revised and updated, this Third Edition provides excellent coverage of the fundamentals of exercise physiology, integrating scientific and clinical information on nutrition, energy transfer, and exercise training. The book is lavishly illustrated with full-color graphics and photos and includes real-life cases, laboratory-type activities, and practical problem-solving questions. This edition has an Integrated Workbook in the margins that reinforces concepts, presents activities to test knowledge, and aids students in taking notes. An accompanying CD-ROM contains multiple-choice and true/false questions to help students prepare for exams. LiveAdvise online faculty support and student tutoring services are available free with the text.
Download or read book Chemical Abstracts written by and published by . This book was released on 2002 with total page 2626 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Performance Enhancement in Sport by :
Download or read book Performance Enhancement in Sport written by and published by . This book was released on 1989 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Borg's Perceived Exertion and Pain Scales by : Gunnar Borg
Download or read book Borg's Perceived Exertion and Pain Scales written by Gunnar Borg and published by Human Kinetics Publishers. This book was released on 1998 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dr. Gunnar Borg introduced the field of perceived exertion in the 1950s. His ratings of perceived exertion (RPE) scale is used worldwide by professionals in medicine, exercise physiology, psychology, cardiology, ergonomy, and sports. Now, Dr. Borg presents the definitive source for using the latest RPE and CR10 scales correctly. Borg's Perceived Exertion and Pain Scalesbegins with an overview and history to introduce readers to the field of perceived exertion. The book then covers principles of scaling and applications of both the RPE and the CR10 scaling methods. This user-friendly, informative, and readable text -discusses the fundamental bases of perceived exertion, -presents information on uses and misuses of the scales, and -provides guidance and direction on how and when to measure subjective somatic symptoms. A special appendix in the back of the book includes tear-out cards containing three RPE scales and three CR10 scales. A scale and instructions for how the scale is used are printed on each two-sided card. Borg's Perceived Exertion and Pain Scalesis the complete theoretical and methodological guide to the field of human perception.
Book Synopsis Comprehensive Dissertation Index by :
Download or read book Comprehensive Dissertation Index written by and published by . This book was released on 1989 with total page 780 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Food Components to Enhance Performance by : Institute of Medicine
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.
Book Synopsis Exertional Heat Illnesses by : Lawrence E. Armstrong
Download or read book Exertional Heat Illnesses written by Lawrence E. Armstrong and published by Human Kinetics. This book was released on 2003 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: The only text to focus exclusively on heat-related illnesses. Full of practical advice for professionals in a variety of medical, academic, & commercial settings. Learn how to identify, treat & prevent exertional heat illnesses & ensure your sporting events are safe.
Book Synopsis Caffeine for the Sustainment of Mental Task Performance by : Institute of Medicine
Download or read book Caffeine for the Sustainment of Mental Task Performance written by Institute of Medicine and published by National Academies Press. This book was released on 2002-01-07 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report from the Committee on Military Nutrition Research reviews the history of caffeine usage, the metabolism of caffeine, and its physiological effects. The effects of caffeine on physical performance, cognitive function and alertness, and alleviation of sleep deprivation impairments are discussed in light of recent scientific literature. The impact of caffeine consumption on various aspects of health, including cardiovascular disease, reproduction, bone mineral density, and fluid homeostasis are reviewed. The behavioral effects of caffeine are also discussed, including the effect of caffeine on reaction to stress, withdrawal effects, and detrimental effects of high intakes. The amounts of caffeine found to enhance vigilance and reaction time consistently are reviewed and recommendations are made with respect to amounts of caffeine appropriate for maintaining alertness of military personnel during field operations. Recommendations are also provided on the need for appropriate labeling of caffeine-containing supplements, and education of military personnel on the use of these supplements. A brief review of some alternatives to caffeine is also provided.
