摘要
目的探讨直升机飞行员腰腹屈肌群和伸肌群的肌力及做功特征, 为直升机飞行员的腰腹部力量训练、耐力训练和预防腰部损伤提供依据。方法受试者为78名男性直升机飞行员, 平均年龄(38.9±7.5)岁, 身高(173.3±3.0)cm, 体重(72.7±7.7)kg, 体质指数(24.2±2.2)kg/m^(2)。选取60°/s 和180°/s两种角速度, 用Isomed2000等速肌力测试系统对直升机飞行员的腰腹屈、伸肌群的肌力和做功情况进行测定。比较不同角速度下的屈伸肌峰力矩、屈伸肌相对峰力矩的差异;比较相同角速度下屈、伸肌之间峰力矩以及相对峰力矩的差异。按年龄分组, 20~39岁组42人, 40~59岁组36人。比较不同年龄组飞行员腰腹屈、伸肌峰力矩及相对峰力矩的差异。结果相同角速度下, 直升机飞行员腰腹伸肌群的峰力矩和相对峰力矩大于屈肌群(t=5.43~8.90, P<0.01);腰腹屈伸肌群的峰力矩、相对峰力矩均随着测试角速度的增加而减小(t=11.36~12.19, P<0.01)。随着年龄增加屈伸肌群的峰力矩减少不明显;而相对峰力矩减小显著, 差异有统计学意义(P<0.05或0.01)。峰力矩比值合格率极低, 腰腹屈伸肌平衡性减弱;腰腹伸肌群的耐力较屈肌群弱, 但差异无统计学意义。结论应对直升机飞行员进行针对性的腰腹屈肌群的力量训练和伸肌群的耐力训练, 提高屈伸肌群的平衡性, 减缓随年龄的增加腰腹肌肉力量下降的趋势。
Objective To study the strength characteristics of waist and abdominal flexor and extensor muscles of helicopter pilots in order to provide the basis for waist and abdominal strength training,endurance training and prevention of the lumbar injury.Methods Seventy-eight male helicopter pilots,whose average age was 38.9±7.5 yrs,height was 173.3±3.0 cm,weight was 72.7±7.7 kg and BMI was 24.2±2.2 kg/m^(2),were selected as subjects.Strength characteristics and work of waist and abdominal flexor and extensor muscles of helicopter pilots were detected with 2 angular velocities of 60°/s and 180°/s by using Isomed 2000 Isokinetic Test System.The peak torques and the relative peak torques of flexor and extensor muscles were compared under same angular velocity and between different angular velocities.The difference of peak torques of flexor and extensor and the relative peak torques of flexor and extensor were compared between age groups(20-39 yrs and 40-59 yrs).Results At the same angular velocity,the peak torque and relative peak torque of the waist and abdominal extensor muscles of helicopter pilots were higher than those of the flexor muscles(t=5.43-8.90,P<0.01).The peak torque and relative peak torque of the waist and abdominal extensor and flexor muscles reduced with the increasing of angular velocity(t=11.36-12.19,P<0.01).The peak torque of the waist and abdominal extensor and flexor muscles in significantly reduced with the increasing of age,but the relative peak torque of the waist and abdominal flexor and extensor muscles reduced,and the difference was statistically significant(P<0.05 or 0.01).The qualification rate of peak moment ratio was very low,and the balance of flexor and extensor muscles was weakened.Waist and abdominal extensor muscle endurance was weaker than flexor muscle endurance,but the differences was not significant.Conclusion It is suggested that we should scientifically strengthen the strength training of flexor muscles and the endurance training of extensor muscles,so as to improve the bal
作者
黄宝珍
廖贻农
杨淇齐
刘捷
朱庆春
Huang Baozhen;Liao Yinong;Yang Qiqi;Liu Jie;Zhu Qingchun(Air Force Healthcare Center for Special Services,Hangzhou,Hangzhou 310002,China)
出处
《中华航空航天医学杂志》
2021年第2期99-102,共4页
Chinese Journal of Aerospace Medicine
关键词
腰肌
腹肌
等速测试
峰力矩
直升机飞行员
Psoas muscles
Abdominal muscles
Isokinetic test
Peak torque
Helicopter pilots
