Abstract
There are many researches of the effects of strenuous exercise on DOMS for adults have been presented. However, there are not many studies on children who have a lot of physical activity on a daily basis and are engaged in sports activities. In recent years, due to the younger age of sports competitions, practice specialized in specialized sports has been practiced since childhood. The practice in the children is similar to that of an adult, and there is a high opportunity that injury may occur. Therefore, the purpose of this study was to understand the effects of children after strenuous exercise on their bodies so that they can practice safely. Adults express DOMS regardless of gender in resistance training with eccentric muscle activity. However, even if boys and girls under the age of 15 in the developing stage perform resistance training with the same load, visual analog scale (VAS), which is an indirect index of DOMS, increases, but creatine kinase activity (CK), which is an index of muscle damage, does not increase. In addition, in uphill or downhill running due to its own weight, an increase in CK is observed in boys with high muscle mass, but not in girls with low muscle mass. Therefore, it was suggested that there may be a gender difference in the expression of DOMS that is not observed in adults, and a gender difference in the expression of DOMS in developing children.
Highlights
Results and DiscussionDelayed onset muscle soreness (DOMS) is called muscle soreness caused by unfamiliar exercise or high-intensity and intense exercise [1]
It has been presented that eccentric muscle activity causes DiscussionDelayed onset muscle soreness (DOMS) [2], and Hiruma et al [3] present that DOMS is not expressed by resistance training with 50% of one repetition maximum (1RM) and slow eccentric muscle activity
DOMS is accompanied by muscle damage [4], pain, muscle weakness, decreased range of motion, edema, increased activity of creatine kinase activity (CK) and glutamine [5]
Summary
Delayed onset muscle soreness (DOMS) is called muscle soreness caused by unfamiliar exercise or high-intensity and intense exercise [1]. DOMS is accompanied by muscle damage [4], pain, muscle weakness, decreased range of motion, edema, increased activity of creatine kinase activity (CK) and glutamine [5]. These physical damages may cause various symptoms of injuries. Since DOMS is accompanied by pain and edema, muscle fiber damage [7], fascia damage [8], and Z-band damage [4,9] have been presented. It is important for children in the developing stage to understand the effects on muscles after physical activity and sports, and [2] the recovery status of DOMS and muscle damage. The purpose of this study was to review the studies related to the keywords "DOMS" and "children" and to examine them from the viewpoint of sex and exercise method
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