肥胖男孩在纵跳落地过程中的额状面和矢状面生物力学
Frontal and sagittal plane biomechanics during drop jump landing in boys who are obese.
作者信息
McMillan Amy Gross, Phillips Kali A, Collier David N, Blaise Williams D S
机构信息
Department of Physical Therapy, Brody School of Medicine at East Carolina University, Greenville, North Carolina 27858, USA.
出版信息
Pediatr Phys Ther. 2010 Spring;22(1):34-41. doi: 10.1097/PEP.0b013e3181cd1868.
PURPOSE
To investigate the frontal and sagittal plane lower extremity biomechanics during drop jump landings in boys who were obese and boys who were of healthy weight.
METHODS
Twelve boys participated, 6 were considered as healthy weight (body mass index for age <85%, age 11.0 +/- 0.8 years), and 6 were considered as obese (body mass index for age >95%, age 12.1 +/- 0.7 years). Three-dimensional data were collected during landing from a drop jump. Group means were compared using Student t tests (alpha = 0.05).
RESULTS
Significant differences were found in peak hip adduction moment, timing of peak dorsiflexion and knee flexion angles, and timing of peak knee extension and abduction moments.
CONCLUSIONS
Boys who were obese exhibited significant differences in frontal and sagittal plane biomechanics when landing from a jump compared with healthy weight peers. These differences could place boys who are obese at greater risk for lower extremity injuries when they engage in jump-landing activities.
目的
研究肥胖男孩和体重正常男孩在纵跳落地过程中下肢在额状面和矢状面的生物力学情况。
方法
12名男孩参与研究，6名被视为体重正常（年龄别体重指数<85%，年龄11.0±0.8岁），6名被视为肥胖（年龄别体重指数>95%，年龄12.1±0.7岁）。在纵跳落地过程中收集三维数据。采用学生t检验比较组间均值（α=0.05）。
结果
在峰值髋关节内收力矩、背屈和膝关节屈曲角度峰值出现时间、膝关节伸展和外展力矩峰值出现时间方面发现了显著差异。
结论
与体重正常的同龄人相比，肥胖男孩在跳跃落地时在额状面和矢状面生物力学方面存在显著差异。这些差异可能使肥胖男孩在进行跳跃落地活动时下肢受伤的风险更高。
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