Related Experiment Video
Updated: Dec 31, 2025
A Novel Application of Musculoskeletal Ultrasound Imaging
Published on: September 17, 2013
Concurrent validity of two-dimensional video analysis of lower-extremity frontal plane of movement during
Ahmed Alahmari1, Lee Herrington1, Richard Jones1
1Centre for Health Sciences Research, School of Health Sciences, Frederick Road Campus, University of Salford, M6 6PU, UK.
Objectives:
Establish the concurrent validity between 2D video analysis and 3D motion analysis of frontal plane lower limb movements during multidirectional landing tasks.
Design:
Correlation study.
Setting:
University Biomechanics laboratory.
Participants:
34 (19 male, 15 female) uninjured physical active individuals.
Main Outcome Measures:
knee abduction and hip adduction angles during a variety of single leg landing tasks.
Results:
2D knee abduction showed an association with 3D knee abduction angle ranging from r = 0.17-0.42 across the tasks, with r2 values ranging between 0.03 and 0.17. 2D hip adduction angle in both legs reported a strong and significant correlation with 3D hip adduction angle, ranging from r = 0.70-0.90 across all tasks. Linear regression analysis (r2) revealed that 49-81% of 3D hip adduction angle can be explained by 2D measurement.
Conclusion:
It might be difficult to explain 3D knee abduction angle using 2D video analysis during single leg landing tasks, whereas 2D hip adduction angle is a strong predictor or 3D hip adduction angle. It would appear 2D video analysis has strong concurrent validity when assessing hip adduction angle, but it is weak when assessing knee abduction angle during a variety of single leg landing tasks.
More Related Videos
06:28Biomechanical Changes Related to Low Back Pain: An Innovative Tool for Movement Pattern Assessment and Treatment Evaluation in Rehabilitation
Published on: December 13, 2024
07:52Evaluating Postural Control and Lower-extremity Muscle Activation in Individuals with Chronic Ankle Instability
Published on: September 18, 2020