Financiado en parte por Otsuka Pharmaceutical Factory, Otsuka Pharmaceutical, Otsuka Pharmaceutical Factory, Inc.
Water intake after dehydration makes muscles more susceptible to cramp but electrolytes reverse that effect
Lau WY, Kato H, Nosaka K
BMJ open sport & exercise medicine · 19 citas
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Financiado por la industriaDatos neutrales que nuestra revisión registró sobre cómo se hizo este estudio. Describen el método, nunca si nos gusta el resultado.
Cómo se estudió
- Diseño
- Ensayo controlado aleatorizado (clasificado por nuestro filtro de IA)
- Estudiado en
- Personas
- Resultado principal
- Marcadores de salud y funcionamiento
Quién lo pagó
- Financiación
- Financiado por la industria
- Empresa
- Otsuka Pharmaceutical Factory
- Empresa
- Otsuka Pharmaceutical
- Empresa
- Otsuka Pharmaceutical Factory, Inc.
Según 3 financiadores declarados.
Publicación
- Publicado
- 2019-03-01 · BMJ Open Sport Exerc Med · vol. 5 · número 1 · pág. e000478
- Editorial
- BMJ
- Citado
- 30 citas · más que el 86% de estudios similares · 2.0× el promedio de su campo
- Referencias
- 21 trabajos
- Acceso
- Acceso abierto (revista) · CC-BY-NC
- Áreas de investigación
- Thermoregulation and physiological responses · Exercise and Physiological Responses · Body Composition Measurement Techniques
- Palabras clave
- Dehydration, Water intake, Medicine, Physical medicine and rehabilitation, Food science, Psychology, Chemistry, Internal medicine, Biochemistry
3 autores
- Wing Yin Lau🇦🇺Edith Cowan University
- Haruyasu Kato🇯🇵Rikkyo University
- Kazunori Nosaka🇦🇺 · autor de correspondenciaEdith Cowan University
Resumen
El texto original del estudio, en el idioma en que se publicó.
Objective
No previous study has compared water and oral rehydration solution (ORS) intake after dehydration induced by exercise in the heat for the effect on muscle cramps. The present study tested the hypothesis that water ingestion after dehydration would increase muscle cramp susceptibility, but this would be prevented by ORS ingestion.
Methods
Ten men performed two bouts of downhill running (DHR; -5%) in the heat (35°C-36 °C) until their body mass was reduced by 2%. Ten minutes after DHR, either spring water or electrolyte water similar to ORS (OS-1®) was ingested in a counter-balanced order on two different days separated by a week. Muscle cramp susceptibility was assessed by a threshold frequency (TF) of electrical train stimulation to induce cramp before, immediately after (0), and 30 and 60 min after the ingestion. Blood samples were taken before, immediately and 80 min after DHR to measure serum electrolyte concentrations.
Results
Muscle cramp susceptibility assessed by TF did not change from baseline to immediately after DHR for both conditions (water: 24.6 ± 2.1 Hz, OS-1®: 24.7 ± 1.4 Hz). TF decreased after water intake by 4.3 Hz (30 min) and 5.1 Hz (60 min post-ingestion), but increased after OS-1® intake by 3.7 and 5.4 Hz, respectively. Serum sodium and chloride concentrations decreased after water intake but maintained after OS-1® intake.
Conclusion
These results suggest that water intake after dehydration makes muscles more susceptible to electrical simulation-induced muscle cramp, probably due to dilution of electrolytes, and when OS-1® is consumed, the susceptibility to muscle cramp decreases.
Resumen vía Europe PMC. Los derechos de autor siguen siendo de los autores o la editorial (CC BY-NC).
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