The effect of the partially restricted sit-to-stand task on biomechanical variables in subjects with and without Parkinson's disease

Luciane Aparecida Pascucci Sande de Souza, Mônica de Biagi Curtarelli, Mukul Mukherjee, Valdeci Carlos Dionisio

Research output: Contribution to journalArticle

6 Scopus citations


The aim of this study was to explore the electromyographic, kinetic and kinematic patterns during a partially restricted sit-to-stand task in subjects with and without Parkinson's disease (PD). If the trunk is partially restricted, different behavior of torques and muscle activities could be found and it can serve as a reference of the deterioration in the motor performance of subjects with PD. Fifteen subjects participated in this study and electromyography (EMG) activity of the tibialis anterior (TA), soleus (SO), vastus medialis oblique (VMO), biceps femoris (BF) and erector spinae (ES) were recorded and biomechanical variables were calculated during four phases of the movement. Subjects with PD showed more flexion at the ankle, knee and hip joints and increased knee and hip joint torques in comparison to healthy subjects in the final position. However, these joint torques can be explained by the differences in kinematic data. Also, the hip, knee and ankle joint torques were not different in the acceleration phase of movement. The use of a partially restricted sit-to-stand task in PD subjects with moderate involvement leads to the generation of joint torques similar to healthy subjects. This may have important implications for rehabilitation training in PD subjects.

Original languageEnglish (US)
Pages (from-to)719-726
Number of pages8
JournalJournal of Electromyography and Kinesiology
Issue number5
Publication statusPublished - Oct 1 2011



  • Electromyography
  • Kinematics
  • Kinetics
  • Parkinson's disease
  • Sit-to-stand

ASJC Scopus subject areas

  • Neuroscience (miscellaneous)
  • Biophysics
  • Clinical Neurology

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