Effets d'une restriction hydrique et alimentaire prolongée (ramadan) sur la performance et les réponses cardiovasculaires au cours d'un exercice incrémental en milieu tropical chaud |
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Authors: | A Fall M Sarr S-H Mandengue L Badji A Samb L Gueye F Cissé |
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Institution: | 1. Institut national supérieur de l''éducation populaire et du sport (Inseps), Dakar, Sénégal;2. Laboratoire de pharmacologie, pharmacodynamie et de physiologie, faculté de médecine, de pharmacie et d''odontostomatologie, Dakar, Sénégal;3. Laboratoire de physiologie, faculté de médecine, de pharmacie et d''odontostomatologie, Dakar, Sénégal;4. Unité de physiologie de l''activité musculaire et physique, faculté des sciences, université de Douala, BP 7064 Douala, Cameroun |
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Abstract: | BackgroungPrevious studies showed that maximal oxygen uptake and maximal heart rate were not different during prolonged fasting (ramadan) compared to normal feeding period. However, the effect of ramadan on the blood pressure response during incremental exercise has not been investigated.ObjectiveThis study aimed to evaluate the evolution of blood pressure during incremental trial in ramadan period.MethodsTwelve young trained male aged 24 ± 4 yrs participated as voluntary subjects. Their anthropometric parameters, maximal aerobic power and maximal heart were measured in fasting and in normal feeding periods during incremental trial on cycle ergometer.ResultsNo significant difference was observed in any anthropometric parameter. Maximal aerobic power of fasting period was significantly less (P < 0,05) compared to normal feeding. Heart rate at rest, at maximal exercise and during a 15 min period of recovery was not significantly affected. Systolic blood pressure of fasting period at maximal power was significantly lower than during the control period (P < 0,05).ConclusionRamadan negatively influences the capacity of maximal power and cardiovascular response at maximal power. |
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Keywords: | Jeû ne Pression arté rielle Fré quence cardiaque Puissance maximale aé robie |
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