Implementing a Physical Activity Program in Hawaiian Elementary Schools

描述(申请人提供)：肥胖症与包括癌症在内的几种健康问题密切相关，在美国已经达到流行水平。最高的肥胖率出现在少数族裔人口中，包括夏威夷原住民和其他太平洋岛民。肥胖的儿童和青少年更有可能在成年后肥胖，成年人的肥胖很难治疗。儿童时期的干预应该有助于预防成人肥胖，但很少有学校有时间定期提供体育课。学校能否纳入15-20分钟的运动计划，以最大限度地增加氧气摄入量(最大摄氧量)，这能否帮助儿童达到健康的体重？本研究建议：1)进行15-20分钟体育锻炼计划的初步实地有效性测试2)确定将其纳入小学课堂日常活动的可行性。奥胡岛Kahuku小学建筑群的两所学校同意参与这项研究，其中一半的孩子是夏威夷原住民或其他太平洋岛民。每所学校招收大约500名1-6年级的学生。在每所学校，每一年级的教室-一年级到六年级-将随机分为治疗教室和对照教室。治疗教室将接受干预-每周4天15-20分钟的体育活动计划，由当地一所大学体育专业的大四学生领导。对照教室将遵循他们的惯例。两所学校都将获得酬金，而对照教室将在学习完成后获得干预材料和培训。在治疗和对照教室中使用学生的BOD POD测量测试前后的BMI、臀围和腰围、皮肤褶皱和直接身体成分。学生在治疗教室参与的日常记录将被保存下来，以确定他们的参与度。可行性问卷将由学生、课堂教师、校长和学区官员在学年中期和结束时填写。这些数据将为未来在更大范围的学校样本中进行干预的随机对照试验提供信息。

DESCRIPTION (provided by applicant): Obesity, closely linked to several health problems, including cancer, has reached epidemic levels in the U.S. The highest rates are seen in minority populations, including Native Hawaiians and other Pacific Islanders. Obese children and adolescents are more likely to be obese into adulthood, and obesity in adults is difficult to treat. Interventions in childhood should help prevent adult obesity, but few schools have time to provide regular physical education. Can schools incorporate a 15-20-minute exercise program that maximizes oxygen intake capacity (VO2 max), and can this help children achieve healthy body weights? This study proposes to: 1) conduct a preliminary field test of effectiveness a 15-20-minute physical activity program 2) determine the feasibility of inserting it into the daily routine of elementary school classrooms Two schools in the Kahuku Elementary School complex on O'ahu, in which half of children are Native Hawaiian or other Pacific Islander, have agreed to be involved in the study. Each school enroll enrolls about 500 students in grades 1-6. In each school, classrooms at each grade level-1st through 6th-will be randomized into treatment and control classrooms. Treatment classrooms will receive the intervention-the 15-20-minute physical activity program 4 days a week, led by college seniors majoring in physical education at a local university. Control classrooms will follow their usual routine. Both schools will receive an honorarium, and control classrooms will receive intervention materials and training after the study is completed. Pre- and post-test measures will be taken of BMI, hip and waist circumferences, skin folds, and direct body composition using the BOD POD of students in treatment and control classrooms. Daily records of participation by students in treatment classrooms will be kept to ascertain their engagement. Feasibility questionnaires will be completed by students, classroom teachers, principals, and school district officials in the middle and at the end of school year. These data will inform a future randomized control trial of the intervention in a much larger sample of schools.