Gao Zan
Department of Exercise and Sport Science, University of Utah, 250 South 1850 East, Rm. 205, Salt Lake City, UT 84112-0920, USA.
Percept Mot Skills. 2008 Oct;107(2):365-72. doi: 10.2466/pms.107.2.365-372.
This study investigated the predictive strength of perceived competence and enjoyment on students' physical activity and cardiorespiratory fitness in physical education classes. Participants (N = 307; 101 in Grade 6, 96 in Grade 7, 110 in Grade 8; 149 boys, 158 girls) responded to questionnaires assessing perceived competence and enjoyment of physical education, then their cardiorespiratory fitness was assessed on the Progressive Aerobic Cardiovascular Endurance Run (PACER) test. Physical activity in one class was estimated via pedometers. Regression analyses showed enjoyment (R2 = 16.5) and perceived competence (R2 = 4.2) accounted for significant variance of only 20.7% of physical activity and, perceived competence was the only significant contributor to cardiorespiratory fitness performance (R2 = 19.3%). Only a small amount of variance here leaves 80% unaccounted for. Some educational implications and areas for research are mentioned.
本研究调查了体育课上感知能力和乐趣对学生身体活动及心肺适能的预测强度。参与者（N = 307；六年级101人，七年级96人，八年级110人；男生149人，女生158人）回答了评估体育课上感知能力和乐趣的问卷，然后通过渐进性有氧心血管耐力跑（PACER）测试评估他们的心肺适能。通过计步器估算一节课中的身体活动量。回归分析表明，乐趣（R2 = 16.5）和感知能力（R2 = 4.2）仅解释了身体活动量20.7%的显著方差，且感知能力是心肺适能表现的唯一显著贡献因素（R2 = 19.3%）。此处仅有少量方差，仍有80%未得到解释。文中还提及了一些教育启示和研究领域。
