인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
DBpia AI
AI 에이전트
AI 아이디어
AI 리더
AI 뷰어
Citeasy
크롬 서지관리 다운로드
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
피인용 0
초록·키워드
This retrospective observational study examined associations of exercise frequency with skeletal maturation, growth, and body composition. Methods: Sixty-nine children in a 12-month program were grouped by sex and frequency (boys: A once/week, n=14; B ≥twice/week, n=19; girls: C once/week, n=14; D ≥twice/week, n=22). Anthropometry, body composition, and bone age (BA) were measured at 0, 6, and 12 months. BA minus chronological age (BA−CA) and growth variables were analyzed by sex via two-way mixed ANOVA (frequency × time) with Greenhouse-Geisser and Bonferroni corrections, plus ANCOVA (covariates: baseline BA−CA, genetic target height) and correlations. Results: BA−CA showed significant frequency × time interactions (boys: F(1.44, 44.49) = 16.19, p < .001, ηp² = .343; girls: F(1.83, 62.26) = 4.65, p = .015, ηp² = .120), decreasing only with high frequency (B: 1.48 to 0.72 yr; D: 1.57 to 1.07 yr; both p < .001). Twelve-month reductions were greater (boys: −0.76 vs. −0.14 yr, p = .001, d = 1.59; girls: −0.50 vs. −0.14 yr, p = .016, d = 0.98). Adjusted differences persisted in boys (F(1, 29) = 21.37, p < .001, ηp² = .424) but not girls (p = .078). Boys showed height, BMI, and body-fat interactions (p = .015–.030); muscle mass increased in all groups. Attendance inversely correlated with ΔBA−CA (r = −0.507, p < .001). Conclusion: Exercise ≥twice weekly was associated with a narrower BA−CA gap in boys; findings in girls were inconclusive.
본문·목차
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
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