本体感觉神经肌肉促进法对5km越野后肌疲劳的干预作用

目的观察本体感觉神经肌肉促进(PNF)法对新学员5 km越野训练肌疲劳度的影响,为今后制定降低高强度训练后疲劳发生率的措施提供依据。方法选择某军校152名新学员作为观察对象,按班随机分为训练后PNF干预组(A组)、训练前PNF干预组(B组)和正常训练组(C组),前2组分别在5 km越野训练后、训练前针对双下肢、骨盆带肌肉采用PNF法干预。并在训练前,训练后的当天,第3天,第5天分别评定其肌疲劳度并行相关血液生化指标检查。结果3个组新学员训练前疲劳程度分布无统计学意义(P0.05)。训练后当天疲劳程度达3级以上的发生率A组29.2%,B组60.0%,C组83.3%;第3天A组2.1%,B组32.0%,C组44.4%;第5天B组4.0%,C组5.6%。训练后当天、第3天、第5天3组新学员疲劳变化程度的差异均有统计学意义(P0.01),其中A组疲劳程度最轻,B组次之,C组最重。3组之间相关血液生化指标的平均增幅差异在训练当天、训练后第3天和第5天均有统计学意义(P0.05),其平均增幅A组B组C组。相关血液生化指标在训练后的当天和第3天与疲劳的相关关系有统计学意义(P0.05),相关关系为中度正相关(rs0.4)。结论PNF法能有效降低运动后疲劳;训练后立即行PNF干预为最佳时机。

INTERVENTION OF PROPRIOCEPTIVE NEUROMUSCULAR FACILITATION ON MUSCLE FATIGUE AFTER 5KM MILITARY TRAINING

Objective To observe the effect of proprioceptive neuromuscular facilitation(PNF) on fatigue in new students experiencing 5 km military training,in order to provide scientific basis for training program to prevent muscle fatigue after intensity exercise.Methods A total of 152 new students from a Nanjing military university were randomly divided into group A(with PNF interventions after training),group B(with PNF interventions before training)and group C(normal training without interventions) Fatigue degree ...