Gender-specific visual perturbation effects on muscle activation during incline treadmill walking: a virtual reality study

Jie Hao, Robin High, Ka Chun Siu

Research output: Contribution to journalArticlepeer-review

Abstract

This study investigated the effects of different visual rotation speeds and types of visual perturbation in virtual reality (VR) on lower extremity muscle activation during incline treadmill walking. Twenty healthy young adults walked on an incline treadmill with six different visual perturbation paradigms in VR (normal VR, 10°/s rotation, 20°/s rotation, 30°/s rotation, 60°/s rotation, and random speed rotation). Muscle activation of the lower extremity was measured by surface electromyography. Results showed an increased visual rotation speed induced higher vastus lateralis and lateral gastrocnemius activation. Females and males had different responses to increased visual rotation speed in vastus lateralis. Random speed rotation induced higher medial hamstring activation than constant speed rotation, in which was more pronounced in females. In conclusion, the amount of visual perturbation should be taken into consideration when developing future VR training for astronauts.

Original languageEnglish (US)
JournalErgonomics
DOIs
StateAccepted/In press - 2022

Keywords

  • electromyography
  • Gait
  • simulation
  • space medicine
  • visual flow

ASJC Scopus subject areas

  • Human Factors and Ergonomics
  • Physical Therapy, Sports Therapy and Rehabilitation

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