Dynamic Sagittal Plane Trunk Control During Anterior Cruciate Ligament Injury
| Autor: | Barry P. Boden, William H. Sipprell, Frances T. Sheehan |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
Male
Trunk control medicine.medical_specialty Anterior cruciate ligament Posture Video Recording Physical Therapy Sports Therapy and Rehabilitation Knee Injuries Base of support Article Sex Factors Physical medicine and rehabilitation Humans Medicine Orthopedics and Sports Medicine Leg biology business.industry Athletes Anterior Cruciate Ligament Injuries Torso Anatomy biology.organism_classification medicine.disease Trunk ACL injury Sagittal plane medicine.anatomical_structure Case-Control Studies Athletic Injuries Female business human activities |
| Zdroj: | The American Journal of Sports Medicine. 40:1068-1074 |
| ISSN: | 1552-3365 0363-5465 |
| DOI: | 10.1177/0363546512437850 |
| Popis: | Background: Recent studies have demonstrated that trunk control likely plays a role in anterior cruciate ligament (ACL) injury. Yet, the majority of ACL research remains focused on the lower limb, with limited information on the trunk position at the time of injury. Hypotheses: Athletes experiencing a noncontact ACL injury after a 1-legged landing position their center of mass (COM) more posterior from the base of support (BOS) at initial ground contact in comparison with uninjured athletes. The distance from the COM to the BOS (COM_BOS) is larger in female, as compared with male, athletes during 1-legged landing. Study Design: Case control study; Level of evidence, 3. Methods: Movie captures of 20 athletes performing a 1-legged landing maneuver resulting in a torn ACL were compared with matched (for gender, sport, and activity just before landing) movie captures of 20 athletes performing a similar maneuver that did not result in an ACL disruption (controls). The COM_BOS, trunkG angle, and limbG angle (both relative to the gravity vector) were measured in the sagittal plane at initial ground-foot contact. A 2-way ANOVA (injury status × gender) was used to examine the hypotheses. Results: There was a significant difference in all 3 measures based on injury status but not on gender. The COM_BOS, normalized by femur length, and limbG angle were greater (Δ = 0.9, P < .001 and Δ = 16°, P = .004, respectively), and the trunkG angle was smaller (Δ = 12°, P = .016) in the participants who sustained an ACL injury as compared with controls. The average COM was calculated as 38 cm more posterior relative to the BOS in the participants who sustained an ACL injury as compared with controls. Conclusion: Landing with the COM far posterior to the BOS may be a risk factor for noncontact ACL injury and potentially can be addressed in prevention programs. |
| Databáze: | OpenAIRE |
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