Intrasession and Intersession Reliability of Flexibility Tests During Developmental Years: The Effects of Sport, Age, and Sex.

IF 2.9 Q2 SPORT SCIENCES

Sports Pub Date : 2025-07-22 DOI:10.3390/sports13080238

Nikolaos Tsiakaras, Konstantina Karatrantou, Christos Batatolis, Konstantinos Papavasileiou, Fenia Tzeli, Vassilis Gerodimos

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Abstract

Flexibility plays an important role in both daily life and performance in various sports. This study evaluated the intrasession and the intersession reliability of flexibility measurements, examining the effects of sport, age, and sex. The sample included 80 wrestling athletes (40 boys: 20 children/20 adolescents; 40 girls: 20 children/20 adolescents), 80 taekwondo athletes (40 boys: 20 children/20 adolescents; 40 girls: 20 children/20 adolescents), and 80 non-athletes (40 boys: 20 children/20 adolescents; 40 girls: 20 children/20 adolescents). The participants performed two assessment sessions, which included two tests (back scratch/sit and reach). The results showed high intrasession and intersession reliability for boys and girls among wrestling and taekwondo athletes (children: ICC = 0.988-0.998, SEM% = 2.31-7.44; adolescents: ICC = 0.993-0.999, SEM% = 1.13-5.19). Additionally, the results demonstrated good/high intrasession and intersession reliability for boys and girls among non-athletes (children: ICC = 0.992-0.997, SEM% = 3.40-9.98; adolescents: ICC = 0.996-0.998, SEM% = 2.81-8.94). The SEM% values were slightly higher in non-athletes vs. athletes (wrestling, taekwondo), as well as in children vs. adolescents, indicating that athletes and adolescents present better reliability than non-athletes and children, respectively. No differences in reliability were observed between boys and girls. In conclusion, the sit and reach and the back scratch are reliable tests in assessing flexibility during the developmental ages. It seems that age and engagement in sports affect the reliability of measurements.

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发育时期柔韧性测试的运动内、运动间信度：运动、年龄和性别的影响。

灵活性在日常生活和各种运动中都起着重要的作用。本研究评估了运动期间和运动期间灵活性测量的可靠性，考察了运动、年龄和性别的影响。样本包括80名摔跤运动员（40名男孩：20名儿童/20名青少年；40名女孩：20名儿童/20名青少年），80名跆拳道运动员（40名男孩：20名儿童/20名青少年；40名女孩：20名儿童/20名青少年），80名非运动员（40名男孩：20名儿童/20名青少年；40名女孩：20名儿童/20名青少年）。参与者进行了两次评估，其中包括两项测试（背部抓挠/坐下和伸手）。结果显示，摔跤和跆拳道运动员中，男孩和女孩的比赛内和比赛间信度较高（儿童：ICC = 0.988 ~ 0.998, SEM% = 2.31 ~ 7.44；青少年：ICC = 0.993 ~ 0.999, SEM% = 1.13 ~ 5.19）。此外，结果显示，在非运动员中，男孩和女孩的比赛内和比赛间信度良好/高（儿童：ICC = 0.992-0.997, SEM% = 3.40-9.98；青少年：ICC = 0.996-0.998, SEM% = 2.81-8.94）。SEM%值在非运动员和运动员（摔跤、跆拳道）以及儿童和青少年中略高，表明运动员和青少年分别比非运动员和儿童表现出更好的可靠性。在男孩和女孩之间没有观察到信度的差异。综上所述，坐伸和抓背是评估发育年龄段柔韧性的可靠测试。年龄和参与体育运动似乎会影响测量结果的可靠性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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