Simons-Morton B G, O'Hara N M, Parcel G S, Huang I W, Baranowski T, Wilson B
School of Public Health, University of Texas Health Science Center, Houston 77225.
Res Q Exerc Sport. 1990 Dec;61(4):307-14. doi: 10.1080/02701367.1990.10607492.
Third and fourth grade boys (n = 422) and girls (n = 390) in four Texas elementary schools reported their participation in moderate to vigorous physical activities (MVPAs) over a 3-day period. Students were surveyed during class on successive days. On a subsample (n = 44), the agreement between reported and observed physical activities during physical education or recess was 86.3%. Running, walking fast, games and sports, and bicycling accounted for 70% of Total MVPAs. Of Total MVPAs reported, 47.0% for boys and 44.6% for girls were 10 min or longer in duration (LMVPA). The average number of LMVPAs per day was 1.7 for both boys and girls. Students reported significantly more occurrences of LMVPAs out of school than during school. Significant interaction between grade and gender indicated that third grade boys reported more Total MVPAs and LMVPAs than third grade girls, but fourth grade boys reported fewer Total MVPAs and LMVPAs than fourth grade girls reported fewer Total MVPAs and LMVPAs than fourth grade girls. During the 3-day reporting period, 12.3% of boys and 13.3% of girls reported no LMVPAs, and 35.6% of boys and girls reported fewer than one LMVPAs per day. While the majority of children reported obtaining at least some activity daily, a substantial proportion of children in this sample reported fewer than one LMVPA daily, indicating that many children may not be obtaining adequate amounts of physical activity.
德克萨斯州四所小学的三年级男生（n = 422）和女生（n = 390）报告了他们在三天内参与中度至剧烈体育活动（MVPA）的情况。在连续几天的课堂上对学生进行了调查。在一个子样本（n = 44）中，体育课或课间休息期间报告的体育活动与观察到的体育活动之间的一致性为86.3%。跑步、快走、游戏和运动以及骑自行车占总MVPA的70%。在报告的总MVPA中，男生的47.0%和女生的44.6%持续时间为10分钟或更长（LMVPA）。男生和女生每天的LMVPA平均次数均为1.7次。学生报告说，校外的LMVPA次数明显多于校内。年级和性别的显著交互作用表明，三年级男生报告的总MVPA和LMVPA比三年级女生多，但四年级男生报告的总MVPA和LMVPA比四年级女生少。在为期三天的报告期内，12.3%的男生和13.3%的女生报告没有LMVPA，35.6%的男生和女生报告每天的LMVPA少于一次。虽然大多数儿童报告每天至少进行了一些活动，但该样本中有相当一部分儿童报告每天的LMVPA少于一次，这表明许多儿童可能没有获得足够的体育活动量。
