Effect of Ramadan fasting and triangular exercise progressive on the vigilance, mood and blood glucose in trained athletes

Introduction: this study has for objective the assessment of the vigilance, mood states variations and the blood glucose levels, during a triangular effort progressive in trained athletes during ramadan fasting (rf).methods: ten trained male athletes aged 21.8 ± 1.1 years are evaluated before (b.rf), during (1st, 2nd and 3th week) and after ramadan fasting, in the blood-glucose, vigilance, and mood states at rest and after (a. ex. ) a triangular exercise test (tub ii).results: comparing to the reference period (b.rf), the rf induces a decrease in the maximal aerobic power (tub ii) approximately 2- 5% and a hypoglycaemia. the objective vigilance is doubly influenced by the rf (f=14.58, p<0.002) and the exercise (f=13.04, p<0.02), and decreasing significantly during the 1st and 2nd week of rf. however the subjective vigilance and moods states are not varied neither by the rf nor by the exercise.conclusion: the results should guide the work of physical education teachers and coaches to a programming by integrating more of periods of complete recovery, and avoiding risky tasks requiring sustained attention.