title: [Application and development of intelligent adjustable leg raising system].
abstract: OBJECTIVE
  To develop an intelligent adjustable leg raising system which could realize the quantification and visualization of lower limbs' elevation angle and frequency.
  
  
  METHODS
  We determined the pole adjustable length of thighs and cruses and the flexion angle range of hips and knees according to the requirements of clinical lower limb function rehabilitation, and made force analysis of hip's and knee's flexion motivation mechanism and clinical observation on its security and effectiveness.
  
  
  RESULTS
  This device was small and compact in overall appearance, which could adjust the angle of the hips and knees bending and ankles turning alone. The force analysis of the hips and knees flexion power element was consistent with the design requirements. The preliminary studies showed the device could relieve pain, improve the range of motion and promote the rehabilitation, which was superior to that of the Brown Ska (P < 0.05).
  
  
  CONCLUSIONS
  The intelligent adjustable leg raising system meets the requirements of clinical usage, which is suitable for different heights, and the flexion angle ranges of hips and knees are wide and in high accuracy, which is worth of being improved and generalized.
authors.forename: Yang
authors.initials: Y
authors.lastname: Guo
authors.forename: Yong
authors.initials: Y
authors.lastname: Ma
authors.forename: Guicheng
authors.initials: G
authors.lastname: Huang
authors.forename: Li
authors.initials: L
authors.lastname: Tao
authors.forename: Hongwei
authors.initials: H
authors.lastname: Li
authors.forename: Jianwei
authors.initials: J
authors.lastname: Wang
mesh_terms: D006801:Humans; D007866:Leg; D008349:Manipulation, Orthopedic / Q000295:instrumentation*; D016059:Range of Motion, Articular; D012046:Rehabilitation / Q000295:instrumentation*