A continuous changeable stress test
system relates to a
biological test device and also comprises a stress test device and a
signal receiving control device. The stress test device comprises a stepping motor, a push-rod transmission device, a pressure spring device, a
pressure sensor and a push plate. The
power output end of the stepping motor is connected with the power input end of the push-rod transmission device, the pressure spring device is arranged at the top of the
mandril of the push-rod transmission device, the
pressure sensor is arranged at the top of the pressure spring device, the push plate is arranged at the top of the pressure spring device, the instruction output end of the
signal receiving control device is connected with the instruction input end of the stepping motor, and the
data transmission end of the
pressure sensor is connected with the data receiving end of the
signal receiving control device. The continuous changeable stress test
system can generate continuous-changing stress and acquire
biological stress and biological electro-myographic signals synchronously; and through a contrastive analysis of the relationship between
biological stress generation and the biological surface electro-myographic signals, can be used for muscular
atrophy degree detection.