Journal
PHYSICAL THERAPY IN SPORT
Volume 11, Issue 2, Pages 56-59Publisher
CHURCHILL LIVINGSTONE
DOI: 10.1016/j.ptsp.2009.11.004
Keywords
Knee valgus; Typical values; Landing
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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 degrees for females and 3-8 degrees for males. For a unilateral step landing task knee valgus angle should be symmetrical and in the range of 5-12 degrees for females and 1-9 degrees for males. (C) 2009 Elsevier Ltd. All rights reserved.
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