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INFLUENCE OF RAMADAN FASTING ON ANAEROBIC PERFORMANCE AND RECOVERY
FOLLOWING SHORT TIME HIGH INTENSITY EXERCISE
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Umid
Karli1, Alpay Guvenc2, Alper Aslan2, Tahir Hazir2 and Caner Acikada2 |
1School of Physical Education and Sports, Abant Izzet Baysal University,
Bolu, Turkey.
2School of Sport Sciences and Technology, Hacettepe University, Ankara,
Turkey.
| Received |
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20 June 2007 |
| Accepted |
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10
September 2007 |
| Published |
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01
December 2007 |
©
Journal of Sports Science and Medicine (2007) 6, 490- 497
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| ABSTRACT |
| The aim of this study was to investigate the effects of Ramadan
fasting on anaerobic power and capacity and the removal rate of lactate
after short time high intensity exercise in power athletes. Ten male
elite power athletes (2 wrestlers, 7 sprinters and 1 thrower, aged
20-24 yr, mean age 22.30 ± 1.25 yr) participated in this study. The
subjects were tested three times [3 days before the beginning of Ramadan
(Pre-RF), the last 3 days of Ramadan (End-RF) and the last 3 days
of the 4th week after the end of Ramadan (After-RF)]. Anaerobic power
and capacity were measured by using the Wingate Anaerobic Test (WAnT)
at Pre-RF, End-RF and After- RF. Capillary blood samples for lactate
analyses and heart rate recordings were taken at rest, immediately
after WAnT and throughout the recovery period. Repeated measures of
ANOVA indicated that there were no significant changes in body weight,
body mass index, fat free mass, percentage of body fat, daily sleeping
time and daily caloric intake associated with Ramadan fasting. No
significant changes were found in total body water either, but urinary
density measured at End-RF was significantly higher than After-RF.
Similarity among peak HR and peak LA values at Pre-RF, End- RF and
After-RF demonstrated that cardiovascular and metabolic stress caused
by WAnT was not affected by Ramadan fasting. In addition, no influence
of Ramadan fasting on anaerobic power and capacity and removal rate
of LA from blood following high intensity exercise was observed. The
results of this study revealed that if strength-power training is
performed regularly and daily food intake, body fluid balance and
daily sleeping time are maintained as before Ramadan, Ramadan fasting
will not have adverse effects on body composition, anaerobic power
and capacity, and LA metabolism during and after high intensity exercise
in power athletes.
KEY
WORDS: Ramadan
fasting, anaerobic power and capacity, lactate, passive recovery,
power athletes.
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