성장기 어린이들의 스포츠클럽 참여 종목에 따른 골격성숙도, 골밀도, 체력 및 유·무산소 능력 비교 (Comparison of Skeletal Maturation, Bone Mineral Density, Physical Fitness, Aerobic and Anaerobic Capacity in Children Who Participated in Different Sports)

서지정보

· 발행기관 : 한국발육발달학회
· 수록지 정보 : 한국발육발달학회지 / 24권 / 1호 / 37 ~ 44페이지
· 저자명 : 유성호, 정현철, 서명원, 김현배, 송종국

초록

The purpose of the study was to compare skeletal maturity, bone mineral density, physical fitness, aerobic and anaerobic capacity in children who participated in different sports. Fifty boys (swimming: N=14; soccer: N=24; taekwondo: N=12), aged 10-12 years old, volunteered to participate in the study. Physique including height, weight, and body circumference were measured. Body composition and bone mineral density were assessed by DXA (Hologic, Co., QDR-4500, USA). Skeletal maturation was evaluated by TW3 method. Physical fitness tests (flamingo balance, sit and reach, grip strength, standing long jump, and side step) were administerd. For aerobic capacity parameters, the Bruce protocol was conducted on the treadmill with Quark b2 (Cosmed, Co., Italy). The Wingate anaerobic power test was performed. All data were expressed as mean and standard deviation. One-way ANOVA was applied to evaluate the difference among sport events. There was a significant difference in skeletal age among groups (F=4.01, p<.05). The swimming group has the most advanced chest circumference compared to the soccer or taekwondo group. There was a significant difference in femoral bone mineral density among groups (F=10.62, p<.001). Sit-ups (F=19.17, p<.0001), and the side-step test (F=12.44, p<.0001) showed significant differences among groups. The soccer group (68.3±7.05 ml/kg/min) had a significantly higher level of peak VO2max than the swimming group (61.7±8.06 mL/kg/min) (F=3.52, p<.05). Significant differences in relative anaerobic peak power (F=3.87, p<.05), and mean power (F=4.89, p<.05) were observed among groups. In conclusion, there were differences in skeletal maturity, bone mineral density, aerobic and anaerobic capacity, and physical fitness in adolescent boys who participated in different sports. Longitudinal study is necessary to investigate clear relationships between physical activity levels, sports events, life style, and energy intake in children.

영어초록

The purpose of the study was to compare skeletal maturity, bone mineral density, physical fitness, aerobic and anaerobic capacity in children who participated in different sports. Fifty boys (swimming: N=14; soccer: N=24; taekwondo: N=12), aged 10-12 years old, volunteered to participate in the study. Physique including height, weight, and body circumference were measured. Body composition and bone mineral density were assessed by DXA (Hologic, Co., QDR-4500, USA). Skeletal maturation was evaluated by TW3 method. Physical fitness tests (flamingo balance, sit and reach, grip strength, standing long jump, and side step) were administerd. For aerobic capacity parameters, the Bruce protocol was conducted on the treadmill with Quark b2 (Cosmed, Co., Italy). The Wingate anaerobic power test was performed. All data were expressed as mean and standard deviation. One-way ANOVA was applied to evaluate the difference among sport events. There was a significant difference in skeletal age among groups (F=4.01, p<.05). The swimming group has the most advanced chest circumference compared to the soccer or taekwondo group. There was a significant difference in femoral bone mineral density among groups (F=10.62, p<.001). Sit-ups (F=19.17, p<.0001), and the side-step test (F=12.44, p<.0001) showed significant differences among groups. The soccer group (68.3±7.05 ml/kg/min) had a significantly higher level of peak VO2max than the swimming group (61.7±8.06 mL/kg/min) (F=3.52, p<.05). Significant differences in relative anaerobic peak power (F=3.87, p<.05), and mean power (F=4.89, p<.05) were observed among groups. In conclusion, there were differences in skeletal maturity, bone mineral density, aerobic and anaerobic capacity, and physical fitness in adolescent boys who participated in different sports. Longitudinal study is necessary to investigate clear relationships between physical activity levels, sports events, life style, and energy intake in children.

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