Effects Of Carbohydrate Exercise On Muscle Endurance

Effects of Carbohydrate Ingestion Pre- Grip Strength Exercise on Muscle Endurance In the world of fitness, nutritional supplements are ingested with intent to maximize the results of strength exercise. In achieving favorable adaptations to exercise, sufficient nutrient consumption is critical. Also important is the timing of nutrient consumption, as greater benefits are observed when ingestion takes place in a time frame close to the exercise (Laurenson & Dubé, 2014). Previous literature suggests carbohydrate (CHO) intake to assist performance of aerobic exercise, which involves prolonged effort of energy (e.g., long distance running) (Kerksick et al., 2008). In contrast, anaerobic exercise (e.g., strength training) involves high-powered effort and shorter bursts of energy (Tipton, et al., 2001). Can it be assumed that CHO supplementation is also beneficial to performance in this type of exercise? Research observing CHO and resistance-exercise, suggests that CHO ingested prior to activity provides a readily available source of energy production for muscle contraction (Anderson et. al., …show more content…
‘Time’ represents EMG T2-T1 values. The rows directly below this represent the 2 different exercise sessions (1= Pre-CHO, 2= Post-CHO). For each exercise session, the standard deviations are shown, the sample size (i.e., N), and the significance. Each of the participants (N=9) performed both tests. The asterisk in the foot note provides criteria for significance (Sig<.05). The column ‘Sig’, determines whether or not the difference between the mean times were significant. According to the values of the means in this column (.325), there was no significant difference found in EMG activity time for the two exercise conditions (i.e., participants did not contract their muscles significantly longer with CHO administration (M= 39.8278) vs. without CHO administration (M=