Development of an aerobic capacity prediction model from one-mile run/walk performance in adolescents aged 13–16 years     

Ryan D. Burns  James C. Hannon  Timothy A. Brusseau  Patricia A. Eisenman  Barry B. Shultz  Pedro F. Saint-Maurice 《Journal of sports sciences》2016,34(1):18-26

A popular algorithm to predict VO_2Peak from the one-mile run/walk test (1MRW) includes body mass index (BMI), which manifests practical issues in school settings. The purpose of this study was to develop an aerobic capacity model from 1MRW in adolescents independent of BMI. Cardiorespiratory endurance data were collected on 90 adolescents aged 13–16 years. The 1MRW was administered on an outside track and a laboratory VO_2Peak test was conducted using a maximal treadmill protocol. Multiple linear regression was employed to develop the prediction model. Results yielded the following algorithm: VO_2Peak = 7.34 × (1MRW speed in m s^?1) + 0.23 × (age × sex) + 17.75. The New Model displayed a multiple correlation and prediction error of R = 0.81, standard error of the estimate = 4.78 ml kg^?1·min^?1, with measured VO_2Peak and good criterion-referenced (CR) agreement into FITNESSGRAM’s Healthy Fitness Zone (Kappa = 0.62; percentage agreement = 84.4%; Φ = 0.62). The New Model was validated using k-fold cross-validation and showed homoscedastic residuals across the range of predicted scores. The omission of BMI did not compromise accuracy of the model. In conclusion, the New Model displayed good predictive accuracy and good CR agreement with measured VO_2Peak in adolescents aged 13–16 years.  相似文献   

Effects on muscle strength,maximal jump height,flexibility and postural sway after soccer and Zumba exercise among female hospital employees: a 9-month randomised controlled trial     

Svein Barene  Andreas Holtermann  Harald Oseland  Ole-Lars Brekke  Peter Krustrup 《Journal of sports sciences》2016,34(19):1849-1858

This 9-month randomised controlled workplace physical activity trial investigated the effects of soccer and Zumba exercise, respectively, on muscle strength, maximal jump height, sit-and-reach flexibility and postural sway among female workers. A total of 107 female hospital employees aged 25–63 were cluster-randomised to a soccer group, a Zumba group or a control group. Training was conducted outside working hours as two to three 1-h weekly sessions the first 3 months and once a week the last 6 months. Tests were conducted at baseline, after 3 and 9 months. The soccer group improved maximal neck extension strength both after 3 (1.2 kg; P < 0.05) and 9 months (1.7 kg; P < 0.01) compared to the control group. The Zumba group improved maximal trunk extension strength (3.1 kg; P = 0.04) after 3 months, with improvements in postural sway velocity moment (?9.2 mm²/s; P < 0.05) and lower limb lean mass (0.4 kg; P < 0.05) after 9 months. No significant intervention effects were revealed in vertical jump height or sit-and-reach flexibility. The present study indicates that workplace-initiated soccer and Zumba exercise may be beneficial for improvement of the neck and trunk strength, which may have preventive effects with regard to future perceived muscle pain in the respective body regions. Furthermore, the Zumba group revealed positive effects on lower limb lean mass and postural sway compared to the control group.  相似文献   

物理科学发现与物理学科主体教育     

韩锋 《河池学院学报》2005,25(2):63-67

从当前教育教学中存在的问题出发，通过爱因斯坦和德布罗意成才之路的启示，讨论了高师物理学科教学中实施主体教育的三种方法：一、发现教学法；二、物理教学中的课堂讨论；三、自学能力。最后归结到主体教育的理论基础——观控相对论。  相似文献   

浅析舞蹈"口传身授、主体参与"课堂教学模式   总被引：1，自引：0，他引：1  

李蓉 《四川职业技术学院学报》2006,16(2):100-101

本文以认知建构论为指导,概括了舞蹈教学的“口传身授,主体参与”的教学模式,总结了其特点和活动程式, 提出了丰富这一课堂教学模式的探索方向。  相似文献   

物理课堂教学中学生主体作用的发挥     

邓卫娟 《河池学院学报》1999,(4)

在物理课堂教学中，学生的主体作用的发挥，可通过激发学生的活动兴趣、欲望及主动精神，培养学生勤奋好学的态度，运用积极、主动的教学方法及开展鼓励为主的学习评价来实现。  相似文献   

Eucharist and Human Body in George Herbert’s Poetry     

黄燕 《海外英语》2013,(8)

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具有电荷和磁矩的天体的引力效应     

郭鸿钧 《韩山师范学院学报》1998,19(2):50-53,56

本文根据文[1]得到的具有电荷和磁矩的天体的度规，计算了这类天体的无限红移面和这种天体的引力场中光线的引力偏转，雷达信号的延迟，结果表明，电荷和磁矩的存在，减小了引力质量产生的相应效应，当电荷和磁矩不存在时，所得结果均退化为Schwarzshild天体的情况。  相似文献   

Evidence supporting restrictions on uses of body diagrams in forensic interviews     

Poole DA  Dickinson JJ 《Child abuse & neglect》2011,35(9):659-669

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Subsyllabic unit preference in learning to read pinyin syllables     

Min Wang  Wei Gao 《Contemporary educational psychology》2011,36(2):142-151

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Want to improve sexual health education for girls? Include body image     

Virginia Ramseyer Winter  Michaella Ward  Sarah Pilgrim  Mackenzie Cook  Alison Summers 《American journal of sexuality education》2019,14(2):152-164

Research suggests body image is related to sexual behaviors, which can impact sexual health across the lifespan. This paper aims to explain the necessity for including body image content in sexuality education to improve outcomes among girls. Our recommendations, supported by theory and empirical research include (a) an assessment of existing curricula; (b) designing new, theoretically-informed curricula; (c) using innovative technology in sex education; (d) rigorous evaluation of existing and new curricula; and (e) revising the National Sexuality Education Standards. These recommendations are discussed after providing the necessary background and rationale.  相似文献