The Influence of Hydration on Anaerobic Performance: A Review

Abstract

This review examines the influence of dehydration on muscular strength and endurance and on single and repeated anaerobic sprint bouts. Describing hydration effects on anaerobic performance is difficult because various exercise modes are dominated by anaerobic energy pathways, but still contain inherent physiological differences. The critical level of water deficit (approximately 3-4%; mode dependent) affecting anaerobic performance is larger than the deficit (approximately 2%) impairing endurance performance. A critical performance-duration component (> 30 s) may also exist. Moderate dehydration (approximately 3% body weight; precise threshold depends on work/recovery ratio) impairs repeated anaerobic bouts, which place an increased demand on aerobic metabolism. Interactions between dehydration level, dehydration mode, testing mode, performance duration, and work/recovery ratio during repeated bouts make the dehydration threshold influencing anaerobic performance mode dependent.

Effect of Hypohydration on Muscle Endurance, Strength, Anaerobic Power and Capacity and Vertical Jumping Ability: A Meta-Analysis

“…In contrast, Cheuvront and Kenefick [3] recently concluded that no clear threshold supports the marginal, but potentially important, impairment in strength and power observed with hypohydration. A significant limitation of the work by Kraft et al [2] as well as that by Cheuvront and Kenefick [3] is that their conclusions were reached without the application of rigorous meta-analysis-like statistical procedures, but rather from a general visual inspection of findings coupled with a votecounting procedure based on statistical significance. According to Hedges and Olkin [4], this procedure has an extremely low power, and its effectiveness substantially decreases as the number of studies reviewed increases.…”

“…In a recent literary review, Kraft et al [2] suggested that a critical level of hypohydration of 3-4 % BW may have to be reached for muscle performance to be impaired. In contrast, Cheuvront and Kenefick [3] recently concluded that no clear threshold supports the marginal, but potentially important, impairment in strength and power observed with hypohydration.…”

The Effect of Acute Dehydration and Rehydration on Biomechanical Parameters of Elite Wrestling Techniques

“…Hickner, Karila and Horswill, et al [37][38][39] showed that dehydration has negative effect in physiological blood and substrate parameters. Kraft, Webster, Yoshida, et al [4,[40][41][42][43] showed that power, maximum anaerobic power, vertical jump, vertical ground reaction impulse, body power and mean power have impacted during acute dehydration. The finding of this study disagree with previous studies [41,[44][45][46], which showed that there were no significant effect in peak power, mean power and vertical jump.…”

“…Dehydration has neurological impacts in central nervous system (CNS) and peripheral nervous system (PNS), control posture and locomotion of body done by cerebral cortex, and weight cutting have inhibitory effect on neurons, and they are unable to fire and trigger movement in the muscles [21]. Some studies have shown that acute dehydration and rehydration are not affected physical and mental characteristics of athletes [4,12,[22][23][24][25].…”

Perda de peso rápida em jovens competidores de Taekwondo

“…Recentemente, um estudo demonstrou que a exposição ao calor e/ou a desidratação podem prejudicar o desempenho físico. 13 Isto se dá em função de o estado de desidratação causar diminuição no volume de ejeção e no débito cardíaco, reduzindo o volume plasmático e, consequentemente, limitando a oxigenação dos músculos durante o exercício. 12 No entanto, estudo recente apontou como sendo provável que a perda hídrica não comprometa a saúde e não 10 .…”