Department of Sport and Physical Activity, Edge Hill University, UK; Department of Physical Education and Sports Science, University of Limerick, Ireland.
Department of Exercise Science, Arnold School of Public Health, University of South Carolina, United States.
J Sci Med Sport. 2018 May;21(5):495-500. doi: 10.1016/j.jsams.2017.09.186. Epub 2017 Oct 2.
SOFIT+ is an observation tool to measure teacher practices related to moderate-to-vigorous physical activity (MVPA) promotion during physical education (PE). The objective of the study was to examine the validity of SOFIT+ during high school PE lessons.
This cross-sectional, observational study tested the construct validity of SOFIT+ in boys' and girls' high school PE lessons.
Twenty-one PE lessons were video-recorded and retrospectively coded using SOFIT+. Students wore hip-mounted accelerometers during lessons as an objective measure of MVPA. Multinomial logistic regression was used to estimate the likelihood of students engaging in MVPA during different teacher practices represented by observed individual codes and a combined SOFIT+ index-score.
Fourteen individual SOFIT+ variables demonstrated a statistically significant relationship with girls' and boys' MVPA. Observed lesson segments identified as high MVPA-promoting were related to an increased likelihood of girls engaging in 5-10 (OR=2.86 [95% CI 2.41-3.40]), 15-25 (OR=7.41 [95% CI 6.05-9.06]), and 30-40 (OR=22.70 [95% CI 16.97-30.37])s of MVPA. For boys, observed high-MVPA promoting segments were related to an increased likelihood of engaging in 5-10 (OR=1.71 [95% CI 1.45-2.01]), 15-25 (OR=2.69 [95% CI 2.31-3.13]) and 30-40 (OR=4.26 [95% CI 3.44-5.29])s of MVPA.
Teacher practices during high school PE lessons are significantly related to students' participation in MVPA. SOFIT+ is a valid and reliable tool to examine relationships between PE teacher practices and student MVPA during PE.
SOFIT+ 是一种观察工具，用于测量体育教育（PE）中与中等到剧烈体力活动（MVPA）促进相关的教师实践。本研究的目的是在高中体育课中检验 SOFIT+ 的有效性。
这项横断面观察性研究测试了 SOFIT+ 在男女高中生体育课中的构效关系。
21 节体育课被录像并使用 SOFIT+ 进行回顾性编码。学生在上课时佩戴臀部佩戴的加速度计，作为 MVPA 的客观测量。多项逻辑回归用于估计在不同教师实践中（通过观察到的个别代码和综合 SOFIT+指标得分来表示）学生参与 MVPA 的可能性。
14 个 SOFIT+ 变量与女孩和男孩的 MVPA 呈统计学显著关系。被确定为高 MVPA 促进的观察到的课程片段与女孩参与 5-10 秒（OR=2.86 [95% CI 2.41-3.40]）、15-25 秒（OR=7.41 [95% CI 6.05-9.06]）和 30-40 秒（OR=22.70 [95% CI 16.97-30.37]）MVPA 的可能性增加有关。对于男孩，观察到的高-MVPA 促进片段与参与 5-10 秒（OR=1.71 [95% CI 1.45-2.01]）、15-25 秒（OR=2.69 [95% CI 2.31-3.13]）和 30-40 秒（OR=4.26 [95% CI 3.44-5.29]）MVPA 的可能性增加有关。
高中体育课中的教师实践与学生参与 MVPA 显著相关。SOFIT+ 是一种有效且可靠的工具，可用于在体育课中检查体育教师实践与学生 MVPA 之间的关系。
