Moya-Ramón Manuel, Juan-Recio Casto, Lopez-Plaza Diego, Vera-Garcia Francisco Jose
J Back Musculoskelet Rehabil. 2018 Feb 6;31(1):155-162. doi: 10.3233/BMR-169760.
The selection and validation of age- and gender-specific criterion-referenced cut-points for abdominal endurance are still unclear.
To stablish normative values for abdominal endurance in adolescents by age and gender using the Bench Trunk Curl-up Test (BTC). Additionally, the reliability of the BTC was analyzed.
Two hundred and sixteen untrained high school students (104 males - 112 females) were grouped into five age strata. Participants performed the BTC twice with a rest period of 72 h. Descriptive statistics and percentile scores were determined for each gender/age strata.
Males showed higher BTC scores than females (males: 90.07 ± 32.65 repetitions; females: 73.43 ± 27.74 repetitions), but no significant differences between age strata nor age * gender interaction were found. Significant differences for the BTC scores between sessions were found (T1 = 72.06 ± 26.28 repetitions; T2 = 81.44 ± 31.27 repetitions). The ICC was 0.82, whereas the typical error was 17.2%.
Gender, but not age, is an important factor when abdominal endurance is compared between adolescents. Finally, the BTC is a reliable test, supporting the findings of this study. However, an extensive familiarization period to reduce the learning effect is necessary.
针对腹部耐力的年龄和性别特异性标准参照切点的选择与验证仍不明确。
使用仰卧起坐测试（BTC）确定青少年腹部耐力按年龄和性别的标准值。此外，分析BTC的可靠性。
216名未经训练的高中生（104名男性 - 112名女性）被分为五个年龄层。参与者进行两次BTC测试，休息72小时。确定每个性别/年龄层的描述性统计数据和百分位数得分。
男性的BTC得分高于女性（男性：90.07 ± 32.65次重复；女性：73.43 ± 27.74次重复），但未发现年龄层之间以及年龄*性别交互作用有显著差异。发现各测试时段的BTC得分存在显著差异（T1 = 72.06 ± 26.28次重复；T2 = 81.44 ± 31.27次重复）。组内相关系数为0.82，而典型误差为17.2%。
在比较青少年的腹部耐力时，性别是一个重要因素，而年龄不是。最后，BTC是一项可靠的测试，支持本研究的结果。然而，需要一个较长的熟悉期来减少学习效应。
