Anterior cruciate ligament (ACL) injury is more prone on female athletes compared to male athletes in non-contact mechanisms. The purpose of the study was to evaluate the effect of four weeks neuromuscular training which closely associated with the dynamic balance and agility performance for preventing ACL injury among female athletes. There were sixteen female athletes from Universiti Pendidikan Sultan Idris (UPSI) who are volleyball, basketball and futsal players participated in this study. The subjects were divided randomly into two groups; control group (CG) and experimental group (EG). The EG experienced four weeks of neuromuscular training while the CG performing their regular training. The pre-test and post-test were measured using Star Excursion Balance Test (SEBT) for dynamic balance and T-Test for agility. Statistical data were analyzed using independent sample t-test and the results demonstrated significant differences (p ≤ 0.05) for dynamic balance and agility between EG and CG. Therefore, this finding implied that neuromuscular training improved the female athletes in term of dynamic balance and agility which reduce the prevalence of ACL injury.
Journal of Sports Science and Physical Education 6(2): 28-35, 2017 – The purpose of this study was to investigate on muscle activities with electromyography (EMG) during jumping jack activity. The EMG sensors were placed on the interest muscle to measure the activity of gastrocnemius and tibialis muscles during jumping jack. Specific thresholds per muscle were applied on the EMG prior comparison. These thresholds were determined by EMG muscle activity. Overall, visual inspection showed comparable activity patterns. The mean absolute value (MAV) and root mean square (RMS) data were collected to show differences activation of both muscle. The results showed that there are distinct differences between gastrocnemius and tibialis anterior during jumping jack. Based on MAV and RMS data, the activation of tibialis anterior muscle is higher than gastrocnemius muscle during jumping jack activity. This conclude that the tibialis anterior muscle had significantly higher electromyography activity on jumping jack.
Journal of Sports Science and Physical Education 7(1): Received: 10 January 2018, Accepted: 15 February 2018 – The purpose of this study was to investigate the muscle activation of the quadriceps and the hamstrings muscle during forward lunge. The study was performed using wireless electromyography (EMG) sensor placed on the interest muscles. The parameter used was the root mean square value during forward lunges activity. The results demonstrated that the rectus femoris muscle was more dominant than the biceps femoris muscle during the initial movement when the knee was in flexion direction and the feet was in dorsiflexion. A linear relationship was initiated between the raw data and RMS value of the EMG signal of the rectus femoris and biceps femoris. The motions elicit eccentric activations of the hamstring muscle groups during lunge activity.