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A Study on the Adolescent Growth Spurt of Skinfold, Muscle and Bone Variables Aligned on Peak Height Velocity in Boys and Girls

PHV 척도를 기준한 피하지방후, 근과 골 변인의 사춘기 발육분출에 관한 연구

  • Shin Sang-Keun (Faculty of Sports Science, Pusan National University)
  • 신상근 (부산대학교 스포츠과학부)
  • Published : 2006.04.01

Abstract

The aim of this study was to examine the timing and magnitude of growth spurt in skinfold, body musle and bone related variables aligned on peak height velocity in boys and girls. In the study design, the subjects and the method were used by the cross-sectional investigation. The subjects participated in this study were 7 through 18 years of age belonged to typical primary, junior, senior high school students, and about 250 males and 250 females in each age group. The total subjects were 2,798 males and 2,762 females. All subjects of this study were lived in Pusan metropolitan city, Korea. The growth velocity magnitudes of sum of the four sites sknfold thickness, body musle and bone related variables. Velocity curve chart of physique was the smoothed according to an approximation of splines by the Sigma Plot-2001 graphic program. In this study, age at PHV of girls occurred eariler about 2 years than boys. In sum of four sites skinfold thickness, PV occurred -2 years from PHV in boys, and PV occurred +2 years from PHV in girls, respectively. In humerus breadth, two PV occurred before and after PHV in boys, whereas PV occurred -1 year from PHV in girls, respectively. In femur breadth, PFV and PHV appeared to occure the same time in boys, PV occurred -2 years from PHV in girls, respectively, In arm circumference, PV occurred after PHV in both sexes. In calf circumference, PV occurred +2 years from PHV in boys, PCCV and PHV appeared to occure the same time in girls, respectively. In magnitudes of peak velocity of body height, humerus breadth, femur breadth, arm circumference and calf circumfence, boys obtained higher than girls, on the other hand, girls obtained higher than boys in sum of four sites skinfold variable. we need to longitudinal and scientific investigation by Korean government level in adolescent growth spurt study, because childhood and adolescence achive higher positive physical education effect than the other ages.

인간의 신체적 발육에 있어서 현저한 변화를 보이며, 다른 연령기에 비해 신체교육의 가능성이 크다고 인식되는 아동기와 사춘기 남 녀를 대상으로 생리학적 연령의 PHV 척도를 기준한 피하지방후, 근과 골 변인의 사춘기 발육분출 변화 양상을 분석 평가 하였다. 신장의 PHV 출현은 남자의 경우 $13{\sim}14$세 사이 이며, 여자는 2년 빠른 $11{\sim}12$세 사이인 것으로 나타났다. 체지방의 4개부위에 대한 피하지방후합은 남자의 경우 PHV 출현 -2년에 $8.9mm{\cdot}yr^{-1}$로, 여자는 PHV 출현 +2년에 $11.3mm{\cdot}yr^{-1}$로 PV에 각각 도달 하였으며, 남 녀 모두 사춘기발육분출 에서 증감의 변동이 많은 양상을 나타내었다. 상완골폭에 있어서 남자의 경우 PHV 출현 -3년과 +2년에 $0.6cm{\cdot}yr^{-1}$$0.5cm{\cdot}yr^{-1}$로 2번의 PV에 도달하는 bi-modal 현상을 보였고, 여자는 PHV 출현 -1년에 $0.3cm{\cdot}yr^{-1}$로 PV에 도달하였다. 대퇴골폭에 있어서 남자는 PHV 출현과 동일시점에 $0.4cm{\cdot}yr^{-1}$로, 여자는 PHV 출현 -2년에 $0.4cm{\cdot}yr^{-1}$로 각각 PV에 도달하였다. 근육의 상완이두근 최대위에 있어서 남자는 PHV 출현 +2년에 $2.6cm{\cdot}yr^{-1}$, 여자는 PHV 출현 +1년에 $1.0cm{\cdot}yr^{-1}$로 PV에 각각 도달 하였고, 하퇴위에 있어서 남자는 PHV 출현 +2년에 $1.9cm{\cdot}yr^{-1}$, 여자는 PHV 출현과 동일한 시점에 $1.6cm{\cdot}yr^{-1}$로 PV에 도달 하였다. 전체적으로 보아 PHV 척도를 기준으로한 피하지방후 발육의 경우, 남자는 PHV 출현 이전, 여자는 PHV 출현이후, 골의 발육은 남 녀 모두 PHV 출현 이전, 근육의 발육은 남 녀 모두 PHV출현 이후 PV에 각각 도달하는 양상을 보였다.

Keywords

References

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