Effect of oral rehydration solution versus spring water intake during exercise in the heat on muscle cramp susceptibility of young men
Lau WY, et al
Published in Journal of the International Society of Sports Nutrition
Methodology
Randomized crossover trial in young men performing exercise in the heat while consuming either oral rehydration solution or spring water, with cramp susceptibility measured by threshold frequency of electrically induced cramp in the calf.
Key Findings
Drinking oral rehydration solution during exercise in the heat raised the threshold frequency for electrically induced cramp, indicating reduced muscle cramp susceptibility, whereas spring water did not.
Conclusions
Oral rehydration solution intake during exercise decreased muscle cramp susceptibility and appeared effective for preventing exercise-associated muscle cramps.
Limitations
Very small sample (n=10) of young healthy men, laboratory-induced cramp surrogate rather than spontaneous exercise-associated cramp, and short single-session exposure.
Related Health Concerns
Study Details
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