Cell biological mechanisms of muscle fiber type transformation and athletic performance enhancement by martial arts exercise
Abstract
Wushu, as a type of exercise nurtured in traditional Chinese culture, not only has profound cultural significance, but also possesses the physiological role of exercise. In order to investigate the effects of wushu exercise on human muscle fiber types and athletic ability, the study was based on the effects of exercise on skeletal muscle, and the cell biological mechanisms of skeletal muscle contraction during wushu exercise were investigated. The experimental subjects were modeled and grouped by designing experiments. The muscle fiber ratio, the ratio of fast and slow muscle fibers of gastrocnemius muscle and the cross-sectional area were collected by polyacrylamide gel electrophoresis, immunofluorescence staining and protein blotting in order to analyze the changes in the muscle fiber types of the subjects before and after the wushu exercise. Then, the effectiveness of martial arts exercise in enhancing athletic ability was investigated by comparing the intergroup and intragroup athletic ability before and after the experiment between the experimental group and the control group. Wushu exercise had an interaction effect on the ratio of fast and slow muscle fibers, the expression of PGC1α4 and PGC1α2/3, the expression of PPARδ, PDK4, and the protein expression of mitochondrial complex, and it did not have an interaction effect on the protein expression of P38MAPK/P38MAPK and P-AMPKα/AMPKα. Before the experiment, the motor ability of the experimental group and the control group was at the same level (P > 0.05), and after the experiment, the motor ability of the experimental group was much higher than that of the control group, and the P value of each dimension was less than 0.05. After the wushu experiment, the motor ability of the experimental group was greatly improved, and the P value of each dimension was less than 0.05, while the control group stayed at the same place, and the P value of each dimension was greater than 0.05. Wushu exercise could effectively improve the subject’s motor ability.
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