EFFECTS OF CORE AREA STABILIZATION EXERCISE TRAINING ON MUSCLE FUNCTION AND BRAIN PLASTICITY IN ADOLESCENTS

Abstract

Objective: To explore the effects of core area stabilization exercise training on muscle function and brain plasticity in adolescents. Methods: Forty cases of adolescents aged 12-16 years old in the junior high school of XX school as the study subjects will be chosen, and they will be classified into 2 groups according to randomization, one research group (n=20) will be trained with core stabilization exercise, and the other will be the controlled government (n=20) will be trained with routine training. Both groups underwent exercise training for 8 weeks. Assess changes in muscle fitness in the core area to evaluate changes in muscle function, including core area back muscle strength, static strength and static strength endurance (prone upper body rise and hold time) and core area abdominal muscle dynamic strength and dynamics Changes in indicators such as strength endurance (number of sit-ups), static strength, and static strength endurance (time to hold supine crunches, time to hold supine leg raises). Before training and after 8 weeks of training, the bilateral motor cortex motor evoked potential (MEP) latency and central motor conduction time (CMCT) were recorded on the abductor pollicis brevis muscle, and various brain parameters were recorded. Neurotransmitter function to assess brain plasticity. Collect, organize and statistically process data. Results: (1) After the training, the back strength, prone upper body up retention time and number of completed sit-ups, supine curl retention time, and supine leg raise retention time were better than the pre-training in the studied team and the controlled team (P < 0.05), and the lumbar spine function score and the core area back and abdominal muscle IEMG were also obviously lower than the real pre-training (P < 0.05); after the training, the supine curl static retention time, the prone upper body rise static holding time were significantly longer than those of the controlled team (P < 0.05), and lumbar spine function points, core area back and abdominal muscle group IEMG were obviously less than that of the controlled team (P < 0.05). (2) Variation of bilateral motor cortex MEP latency and CMCT: (i) After training, there was no significant change in the healthy side motor cortex MEP latency as well as CMCT in both teams (P＞0.05), and the comparison of the two teams was not remarkable (P＞0.05); (ii) After training, there were 11 cases (84.6%) of eliciting the motor cortex MEP on the affected side in the study group, which was higher than that of the pre-training 6 cases (46.2%). The number of elicitation was higher than the number of elicitation in 5 cases (38.5%) before training, but the differences among and within the 2 teams were not remarkable (P > 0.05). (3) Changes of neurotransmitter power inside the brain: (i) After training, the power of pentraxin (5-HT) of patients in both groups improved in comparison to that of patients before training, however, its discrepancy wasn't important (P＞0.05); no significant discrepancies were recorded in comparing the two teams (P＞0.05); (ii) After training, norepinephrine (NE) power was significantly increased in the studied patient group as opposed to the pre-training group (P < 0.01), and in the controlled patients as opposed to the pre-training group but the resultant increase was not remarkable (P > 0.05), and NE power was considerably more in the studied patients as opposed to the controlled patients (P < 0.05); (iii) After training, the power of acetylcholine (Ach) and dopamine (DA) was significantly increased in the patients of the study group than before training (P < 0.01), the improvement in the controlled section comparing to training without remarkable discrepancy (P > 0.05), and without remarkable disagreement comparing the two groups (P > 0.05). Conclusion: Core area stability training enhances core muscle strength and endurance by modulating the cerebral cortex MEP latency, CMCT and brain neurotransmitter power changes. Core area stability training has an excellent effect on improving core area muscle function. for regular strength training.