Ramadan fasting has no significant impact on maximal strength and power attributes in well-trained Muslim martial art athletes

Abstract

Previous research on Muslim athletes’ strength and power during the observance of Ramadan fasting possessed several methodological issues and the outcome was equivocal. Thus, the aim of this study was to re-examine the impact of Ramadan fasting on the fasted Muslim athlete's strength and power capabilities, employing multi-joint dynamic exercises and through utilisation of devices that were sensitive to small changes and capable of concealing performance outcomes. Nine well-trained males of Muslim faith, national-level ‘Pencak Silat’ martial art athletes were assessed for peak force, average force and maximum rate of force development during four strength and power tests, with each conducted separately: 1) isometric mid-thigh pull, 2) isometric bench-press push, 3) loaded squat jump and 4) bench-throw. All exercises were performed using a force plate and linear position transducer connected to a computerized data acquisition software. Athletes performed the exercises during the last week of the Ramadan month (i.e., RAM condition) and one week after the end of Ramadan month (i.e., Control, CON condition). Pre-exercise meals prior to the trials were standardized, sleeping duration was tracked using actigraphy and volume load was used to monitor resistance training load. Body composition, daytime sleepiness, mood, urine specific gravity, blood glucose and lactate were also measured. Results indicated that there were no significant differences between RAM and CON condition in all the variables measured during the four strength and power tests (all P > 0.05). In conclusion, Ramadan fasting may not impair maximal strength and power in trained athletes when exertions were performed independently.