搜索结果: 16-27 共查到“医学 caffeine”相关记录27条 . 查询时间(0.09 秒)
International society of sports nutrition position stand:caffeine and performance
International society sports nutrition position caffeine performance
2015/7/20
Position Statement: The position of The Society regarding caffeine supplementation and sport performance is summarized by the following seven points: 1.) Caffeine is effective for enhancing sport perf...
Low doses of caffeine reduce heart rate during submaximal cycle ergometry
Low doses caffeine reduce heart rate submaximal cycle ergometry
2015/7/13
The purpose of this study was to examine the cardiovascular effects of two low-levels of caffeine ingestion in non habitual caffeine users at various submaximal and maximal exercise intensities.
Effect of Caffeine on Exercise Capacity and Function in Prostate Cancer Survivors
PERCEPTION OF EFFORT OLDER ADULTS PERFORMANCE-ENHANCING SUBSTANCES ERGOGENIC AID SUPPLEMENT
2017/4/14
Purpose: This study aimed to examine the acute effect of caffeine on exercise capacity, exercise-related fatigue, and functional performance in prostate cancer survivors.
Methods: In this randomized,...
Effect of Caffeine on Oxidative Stress During Maximum Incremental Exercise
Trimethylxanthine malonaldehyde vitamins catecholamines VO max
2015/3/23
Caffeine (1,3,7-trimethylxanthine) is an habitual substance present in a wide variety of beverages and in chocolate-based foods and it is also used as adjuvant in some drugs. The antioxidant ability o...
Relationship between Daily Caffeine Consumption and Withdrawal Symptoms: Questionnaire Study
Caffeine daily consumption withdrawal symptoms university student questionnaire
2010/2/24
Daily caffeine intake was estimated to range from 0 to 500 mg day-1. A significant increase in headache, fatigue, irritability, and sleepiness/drowsiness (P < 0.05) was reported by students whose dail...
Effect of caffeine consumption on tissue oxygen levels during hyperbaric oxygen treatment
transcutaneous oxygen hyperbaric air chamber
2009/6/8
Ten men were exposed to hyperbaric oxygen (HBO2), and their tissue oxygen levels were monitored after they drank either placebo or caffeine beverages. Transcutaneous tissue oxygen (PtcO2) monitor meas...
THE CAFFEINE INGESTION INCREASES TIME TO NEUROMUSCULAR FATIGUE AND PERFORMANCE DURING SUPRAMAXIMAL CYCLING EXERCISE
caffeine neuromuscular fatigue electromyography cycling exercise
2009/3/27
ALTIMARI, L. R.; FONTES, E. B.; OKANO, A. H.; TRIANA, R. O.; CHACON-MIKAHIL, M. P. T.; MORAES, A. C. The caffeine ingestion increases time to neuromuscular fatigue and performance during supramaxima...
Stimulation of cryopreserved epididymal spermatozoa of the domestic cat using the motility stimulants caffeine, pentoxifylline, and 2'-deoxyadenosine
Domestic cat motility stimulants hyperactivation
2009/2/12
We have investigated the effects of caffeine, pentoxifylline, and 2'-deoxyadenosine on the motion characteristics and longevity of domestic cat spermatozoa. Freshly collected or cryopreserved dome...
Inhibition of Alkaline Phosphatase Activity of Boar Semen by Pentoxifylline, Caffeine, and Theophylline
Methyl xanthines seminal plasma spermatozoa
2008/12/15
Methyl xanthines have been used frequently as additives to sperm suspensions in order to improve sperm characteristics. The mechanism of action on spermatozoa is generally assumed to be inhibition of ...
Coffee acutely modifies gastrointestinal hormone secretion and glucose tolerance in humans: glycemic effects of chlorogenic acid and caffeine
insulin phenolic acids polyphenols
2017/1/4
Accumulating evidence suggests that certain dietary polyphenols have biological effects in the small intestine that alter the pattern of glucose uptake. Their effects, however, on glucose tolerance in...
Effect of chewing gum containing nicotine and caffeine on energy expenditure and substrate utilization in men
Nicotine caffeine fatty acid oxidation
2017/1/3
One milligram of nicotine has a pronounced thermogenic effect, which can be increased by ≈100% by adding 100 mg caffeine. Increasing the nicotine dose to 2 mg does not increase the thermogenic effect ...
Contribution of caffeine to the homocysteine-raising effect of coffee:a randomized controlled trial in humans
Caffeine paper-filtered coffee homocysteine B vitamins crossover experiment
2016/12/20
Background: A high plasma total homocysteine concentration is associated with increased risk of cardiovascular disease. Consumption of unfiltered or filtered coffee raises total homocysteine conc...