Novel application of a Wii remote to measure spasticity with the pendulum test: Proof of concept

Chien Hung Yeh, Chi Yao Hung, Yung Hung Wang, Wei Tai Hsu, Yi Chung Chang, Jia Rong Yeh, Po Lei Lee, Kun Hu, Jiunn Horng Kang, Men Tzung Lo

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


Background: The pendulum test is a standard clinical test for quantifying the severity of spasticity. In the test, an electrogoniometer is typically used to measure the knee angular motion. The device is costly and difficult to set up such that the pendulum test is normally time consuming. Objective: The goal of this study is to determine whether a Nintendo Wii remote can replace the electrogroniometer for reliable assessment of the angular motion of the knee in the pendulum test. Methods: The pendulum test was performed in three control participants and 13 hemiplegic stroke patients using both a Wii remote and an electrogoniometer. The correlation coefficient and the Bland-Altman difference plot were used to compare the results obtained from the two devices. The Wilcoxon signed-rank test was used to compare the difference between hemiplegia-affected and nonaffected sides in the hemiplegic stroke patients. Results: There was a fair to strong correlation between measurements from the Wii remote and the electrogoniometer (0.5132

Original languageEnglish
Pages (from-to)70-75
Number of pages6
JournalGait and Posture
Publication statusPublished - Jan 1 2016


  • Pendulum test
  • Spasticity
  • Stroke
  • Wii remote

ASJC Scopus subject areas

  • Biophysics
  • Orthopedics and Sports Medicine
  • Rehabilitation


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