Caffeine as a Lipolytic Food Component Increases Endurance Performance in Rats and Athletes.

Sungpil, Ryu; Choi, Sung-Keun; Joung, Seung-Sam; Suh, Heajung; Cha, Youn‐Soo; Lee, Soochun; Lim, Kiwon

doi:10.3177/jnsv.47.139

Cited by 68 publications

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“…Further studies are required to investigate whether caffeine can be utilized to improve the physical performance of elderly citizens. fatigue; perceived exertion; postural stability; elderly CAFFEINE INGESTION INCREASES the endurance of young people exercising at 60 -85% of their maximal oxygen uptake (12,13,38). It also seems to improve endurance as measured by repeated submaximal isometric contraction (34) and decreases the rate of perceived exertion during exercise (6, 9, 37).…”

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Caffeine improves endurance in 75-yr-old citizens: a randomized, double-blind, placebo-controlled, crossover study

Nørager

Jensen

Madsen³

et al. 2005

Journal of Applied Physiology

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Norager, C. B., M. B. Jensen, M. R. Madsen, and S. Laurberg. Caffeine improves endurance in 75-yr-old citizens: a randomized, double-blind, placebo-controlled, crossover study. J Appl Physiol 99: 2302-2306, 2005. First published August 4, 2005 doi:10.1152/japplphysiol.00309.2005.-This study investigated the effect of caffeine on physical performance in healthy citizens aged Ն70 yr. The randomized, double-blind, placebo-controlled, crossover study was conducted in 15 men and 15 women recruited by their general practitioner. Participants abstained from caffeine for 48 h and were randomized to receive one capsule of placebo and then caffeine (6 mg/kg) or caffeine and then placebo with 1 wk in between. One hour after intervention, we measured reaction and movement times, postural stability, walking speed, cycling at 65% of expected maximal heart rate, perceived effort during cycling, maximal isometric arm flexion strength, and endurance. Analysis was by intention to treat, and P Ͻ 0.05 was regarded as significant. Caffeine increased cycling endurance by 25% [95% confidence interval (CI): 13-38; P ϭ 0.0001] and isometric arm flexion endurance by 54% (95% CI: 29 -83; P ϭ 0.0001). Caffeine also reduced the rating of perceived exertion after 5 min of cycling by 11% (95% CI: 5-17; P ϭ 0.002) and postural stability with eyes open by 25% (95% CI: 2-53; P ϭ 0.03). Caffeine ingestion did not affect muscle strength, walking speed, reaction, and movement times. At the end of the study, 46% of participants correctly identified when they received caffeine and placebo. Caffeine increased exercise endurance in healthy citizens aged Ն70 yr, but the participants' reasons for stopping the test may have varied between subjects, as the cycling test was done at ϳ55% of maximal oxygen consumption. Further studies are required to investigate whether caffeine can be utilized to improve the physical performance of elderly citizens. fatigue; perceived exertion; postural stability; elderly CAFFEINE INGESTION INCREASES the endurance of young people exercising at 60 -85% of their maximal oxygen uptake (12,13,38). It also seems to improve endurance as measured by repeated submaximal isometric contraction (34) and decreases the rate of perceived exertion during exercise (6, 9, 37). Typically, doses of ϳ6 mg/kg caffeine (equivalent to 4 cups of coffee) were used in these studies.With a growing number of elderly with a physically active lifestyle and many elderly participating in rehabilitation programs, the endurance-enhancing effect of caffeine is of increasing interest in this age group. However, the enduranceenhancing effect of caffeine found in young subjects has not previously been examined in the elderly.The aim of this study was to investigate whether 6 mg/kg caffeine improves physical performance and reduces the perceived effort during work in healthy citizens aged Ն70 yr. The main hypothesis was that caffeine would improve cycling endurance at 65% of expected maximal heart rate, and the secondary hypothesis was that caffeine would improv...

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confidence: 99%

“…CAFFEINE INGESTION INCREASES the endurance of young people exercising at 60 -85% of their maximal oxygen uptake (12,13,38). It also seems to improve endurance as measured by repeated submaximal isometric contraction (34) and decreases the rate of perceived exertion during exercise (6,9,37).…”

mentioning

confidence: 99%

Caffeine improves endurance in 75-yr-old citizens: a randomized, double-blind, placebo-controlled, crossover study

Nørager

Jensen

Madsen³

et al. 2005

Journal of Applied Physiology

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“…Caffeine acts as phosphodiesterase (PDE) inhibitor that causes an increase in cyclic adenosine monophosphate (cAMP) in the brain and leads to stimulation of catecholamines (i.e., epinephrine) [25,26]. This elevation in epinephrine levels [27] would, in turn, improve performance by delaying carbohydrate utilization and preserving muscle glycogen content and it Cause a greater stimulation of lipolysis during exercise and a greater release of circulating FFAs into the blood stream [28]. Also this potential performance-enhancing mechanism may be particularly relevant for liver (Bischof et al 2001) glycogen stores [29].…”

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confidence: 99%

Effects of high dose coffee intake on aerobic power in dragon female athletes

Shabani

Roya

Izaddoust

2016

PES

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Abstract. Background: There are few studies that consider the effect of high doses of caffeine on aerobic power (VO2max). Also, to date, no study examined the effect of coffee intake on dragon boat paddler specifically on women. The purpose of this study was to investigate the effect of espresso coffee on improvement of aerobic power of dragon boat paddler. Material: Twenty women athletes of Guilan dragon bout team members of Malavan club of port city of Anzali (mean ±SD age, 23.60± 3.49 years; BMI,23.77±1.88kg/m 2 ; body fat, 30.32±4.65%) were recruited to this study, after they completed a primary test without consuming any coffee, they consumed 6mg/kg of coffee (espresso or decaffeinated) and following that they completed two experimental trials. A randomized, double-blind, repeated-measures, design was employed whereby paddlers complete a 2000m paddling dragon boat ergo-meter. Results: Coffee could improve VO2max (Without coffee =74.40±4.99, Espresso coffee =90.10±6.19, Decaffeinated coffee =91.00±5.67, P<0.05). VO2max amount after exercise were significantly higher for both espresso coffee and decaffeinated coffee, when compared with without coffee condition. No significant differences were observed between espresso coffee and decaffeinated coffee (P<0.05).Conclusion: The present study shows that both high doses of caffeine (espresso coffee) and decaffeinated coffee can enhance VO2max during aerobic exercise including 2000m dragon boat paddling. It seems that some compounds except caffeine in decaffeinated coffee can act improve VO2max. Further studies needed for considering the effect of high doses of coffee on endurance exercises. Also in other age ranges of women athletes and other sport athletes.

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“…6,7) During in vivo screening for endurance capacity, coffee was found to have a marked stimulatory effect on exercise tolerance in humans 3,4) and animal models. 5,8) Although the ergogenic activity of coffee is attributed mainly to caffeine, coffee is also one of the main natural sources of 3,4-DA, a compound that has not been tested in relation to its effect on exercise tolerance.…”

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“…2) It is recognized that 3,4-DA has several pharmacological properties, including antioxidant, 3,4) anti-inflammatory, 5) and immunomodulatory 6) activities. At a concentration of 10 mM, 3,4-DA completely blocks the production of reactive oxygen species (ROS) in human neutrophils and the xanthine oxidase system.…”

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confidence: 99%

3,4-Dihydroxycinnamic Acid Attenuates the Fatigue and Improves Exercise Tolerance in Rats

Novaes

Gonçalves

Pelúzio

et al. 2012

Bioscience, Biotechnology, and Biochemistry

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3,4-Dihydroxycinnamic acid (3,4-DA) is a natural compound with high antioxidant potential found in various foods. This study found that animals administered with 3,4-DA had higher exercise tolerance, reduced blood lactate, and markers of hepatic oxidation. Blood glucose and antioxidant enzymes were not affected by this treatment. 3,4-DA may have applicability in reducing the fatigue associated with exercise.

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Caffeine as a Lipolytic Food Component Increases Endurance Performance in Rats and Athletes.

Cited by 68 publications

References 32 publications

Caffeine improves endurance in 75-yr-old citizens: a randomized, double-blind, placebo-controlled, crossover study

Caffeine improves endurance in 75-yr-old citizens: a randomized, double-blind, placebo-controlled, crossover study

Effects of high dose coffee intake on aerobic power in dragon female athletes

3,4-Dihydroxycinnamic Acid Attenuates the Fatigue and Improves Exercise Tolerance in Rats

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