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Under the simulating of parachute jumping,the landing impact forceson the segments of the human body of three parachuters were studied with thehelp of high-speed photography and theoretical calculation.The results show:(1)There was an attenuation process of the impact forces on the body segments.(2)The impact force on the body segments and the peak of the impact force on the feetat the time from 0.08 to 0.26 s attenuated by 40.6-64.1% as compared with thoseat 0.08s.(3)The attenuation curve of the peak of the impact force on the feet isclose to the curve of its regression equation.
Under the simulating of parachute jumping, the landing impact forceson the segments of the human body of three parachuters were studied with the help of high-speed photography and theoretical calculation.The results show: (1) There was an attenuation process of the impact forces on (2) The impact force on the body segments and the peak of the impact force on the feetat the time from 0.08 to 0.26 s attenuated by 40.6-64.1% as compared with thoseat 0.08 s. (3) The attenuation curve of the peak of the impact force on the feet isclose to the curve of its regression equation