男性青少年血胰岛素样生长因子-1及睾酮水平与下肢骨骼和肌肉形态及跳跃能力的关系

The relationship between the levels of insulin like growth factor 1 and testosteron in blood and the inferior limb sharp indexes and jumping performance in male adolescents

目的探讨男性青少年生长发育过程中血胰岛素样生长因子-1(IGF-1)及睾酮(T)水平与下肢骨骼和肌肉形态、跳跃能力的关系。方法放射免疫分析法测定血清IGF-1及T浓度;B型超声仪测量下肢腓肠肌腱、跟腱、腓肠肌和比目鱼肌长度;ReboundJumping测定装置测试下肢跳跃能力。结果男性青少年发育过程中血IGF-1及T水平与生长发育速度下肢骨骼和肌肉形态、跳跃能力存在不同程度正相关。结论在男性青少年生长发育过程中,IGF-1和T同时起到了促进生长作用。

Objective To investigate the relationship between the levels of insulin like growth factor 1 (IGF 1) and testosterone (T) in blood and the inferior limb sharp indexes and jumping performance in male adolescents.Method The levels of IGF 1and T in blood were determined by radioimmunoassay.The length of tendon and belly of triceps muscle of calf were determined by image of B ultrasonography.The jumping performances were measured by the Rebound Jumping Device.Results It is found that the levels of the IGF 1 and T in blood have positive relationship to some degree with the inferior limb sharp indexes,jumping performances and velocity of growth during the growth in adolescents.Conclusion IGF 1 and T have the same impact of somatotrophic during the growth in adolescents.