Drop jump landing knee valgus angle; normative data in a physically active population

Herrington, LC; Munro, AG

Abstract

Objective: Establish normative values for knee valgus angle during drop jump and step landings.
Design: Observational.
Setting: University biomechanics laboratory.
Participants: 100 physically active asymptomatic individuals (50 male, 50 female) aged 18–28 years old.
Main outcome measures: Knee valgus angle during drop jump and step landings.
Results: There were no differences between genders during the step landing task (p < 0.12) but there were differences during the drop jump landing task (p < 0.048). Both males and females showed no significant differences between sides for either of the tasks (p > 0.05) or between the valgus angle generated for either of the tasks (p > 0.05).
Conclusion: It would appear in order to be regarded as an average ‘‘normal’’ performance during a drop jump landing task knee valgus angle should be symmetrical and in the range of 7–13° for females and 3–8° for males. For a unilateral step landing task knee valgus angle should be symmetrical and in the range of 5–12° for females and 1–9° for males.

Citation

Herrington, L., & Munro, A. (2010). Drop jump landing knee valgus angle; normative data in a physically active population. Physical Therapy in Sport, 11(2), 56-59. https://doi.org/10.1016/j.ptsp.2009.11.004

• Journal Article Type: Article
• Publication Date: May 1, 2010
• Deposit Date: May 13, 2011
• Journal: Physical Therapy in Sport
• Print ISSN: 1466-853X
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 11
• Issue: 2
• Pages: 56-59
• DOI: https://doi.org/10.1016/j.ptsp.2009.11.004
• Publisher URL: http://dx.doi.org/10.1016/j.ptsp.2009.11.004