The effects of virtual reality immersion on drop landing mechanics.
Sports biomechanics(2022)
摘要
Virtual reality (VR) can be used to alter the environment and challenge sensory calibration which rehabilitation and return-to-sport testing lack. The purpose was to establish how VR manipulation of the environment changes knee landing biomechanics. Twenty-nine healthy active adults (22 males; 20.52 ± 1.21 years; 1.75 ± 0.09 m; 78.34 ± 14.33 kg) were recruited. Three drop landing trials (31 cm height box) were performed for three conditions: eyes-open (EO), eyes-closed (EC), and VR, consisting of a head-mounted display of a 360° photo of a steep man-made edge or drop. Knee kinematics and kinetics were evaluated using 3D motion capture. The VR condition significantly increased Landing Error Score System errors relative to EO (1.28 ± 0.20, < 0.001) and EC (0.98 ± 0.22, < 0.001) and increased vertical ground reaction force relative to EO (0.41 ± 0.09 N·bw, < 0.001) and EC (0.34 ± 0.07 N·bw, < 0.001). The VR condition had less knee flexion at initial contact compared to EO (4.39 ± 0.75°, = 0.001) and EC (1.83 ± 0.63°, = 0.021). The VR condition had more knee abduction at initial contact compared to EO (0.71 ± 0.24°, = 0.002) and EC (0.69 ± 0.22°, = 0.002) and increased knee abduction at maximum flexion compared to EO (2.01 ± 0.58°, = 0.026). Landing in VR increased injury risk landing biomechanics, indicating that VR may option to incorporate into return-to-play or injury risk assessment.
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关键词
Neuromuscular perturbation,dynamic systems theory,environmental stimulus,injury risk
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