The purpose of this study was to determine the effect of a 12 week (2 days per week) resistance training programme at an intensity of 50% of 1RM in adolescent males (13-16 years old) male taekwondo athletes on their isokinetic peak torque and anaerobic power. The intervention group (n=12) aged 14±1 years, participated in the prescribed resistance training programme along with the existing taekwondo skill/drill training (2 days/week), while the control group (n=11) aged 14±1 years, participated in an existing taekwondo skill/drill training only. Anaerobic power was estimated from Wingate anaerobic test. An isokinetic dynamometer (Biodex multi-joint system 3 pro, New York) was used in the collection of data from the knee (flexion/extension) and hip (flexion, extension, abduction and adduction) joints. Mean anaerobic power and peak anaerobic power in the intervention group increased 9% and 10%, respectively. However, these two variables in the control group significantly decreased from mid training to post training (11.5% and 16% respectively), (p<0.001). There were no significant increase in peak torque, relative peak torque, average torque and average power on knee extension/flexion and hip extension/flexion in the intervention group. However, isokinetic hip average adduction power significantly (32%) increased from pre to mid training (p<0.01) in the intervention group. In the control group, there were significant decreased on isokinetic hip average flexion power (22%) and isokinetic hip average abduction power (34%) from pre to post training and mid to post training respectively (p<0.01). Hence it is concluded that the prescribed resistance training was able to elicit a significant increase in some of the isokinetic strength variables. However, it did not administer any effect on anaerobic power of the taekwondo athletes.
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