PURPOSE/ BACKGROUND: Medial shin pain (MSP) is a common complaint that may stop an athlete from running. No previous study has identified deficits in pelvic, hip or knee motion as potential contributing factors to MSP. The purpose of this study was to investigate the differences in kinematics during running between uninjured athletes and those with MSP. Secondary analyses investigated differences in limbs between groups and differences between sexes. METHODS: This case-control study investigated fourteen runners aged 18-40 years old with a history of unilateral MSP and fourteen runner controls. Three dimensional lower quarter kinematics were captured as runners ran on a treadmill. Specifically, peak hip internal rotation (IR), frontal plane pelvic tilt (PT) excursion, and knee flexion were examined. RESULTS: Groups were similar in age, mass, height, and training mileage. Subjects with a history of MSP demonstrated significantly greater frontal plane PT (P = 0.002, Effect size = 0.55) and peak hip IR (P = 0.004, Effect size = 0.51); and less knee flexion (P = 0.02, Effect size = 0.46) than the control group. No significant difference was found in kinematics of the MSP group during their involved side stance phase as compared to their non-involved side. CONCLUSIONS: Runners with MSP displayed greater PT excursion, peak hip IR, and decreased knee flexion while running as compared to a control group. These results should help guide treatment for the running athlete that experiences MSP. LEVEL OF EVIDENCE: 3b.
PURPOSE/ BACKGROUND: Medial shin pain (MSP) is a common complaint that may stop an athlete from running. No previous study has identified deficits in pelvic, hip or knee motion as potential contributing factors to MSP. The purpose of this study was to investigate the differences in kinematics during running between uninjured athletes and those with MSP. Secondary analyses investigated differences in limbs between groups and differences between sexes. METHODS: This case-control study investigated fourteen runners aged 18-40 years old with a history of unilateral MSP and fourteen runner controls. Three dimensional lower quarter kinematics were captured as runners ran on a treadmill. Specifically, peak hip internal rotation (IR), frontal plane pelvic tilt (PT) excursion, and knee flexion were examined. RESULTS: Groups were similar in age, mass, height, and training mileage. Subjects with a history of MSP demonstrated significantly greater frontal plane PT (P = 0.002, Effect size = 0.55) and peak hip IR (P = 0.004, Effect size = 0.51); and less knee flexion (P = 0.02, Effect size = 0.46) than the control group. No significant difference was found in kinematics of the MSP group during their involved side stance phase as compared to their non-involved side. CONCLUSIONS: Runners with MSP displayed greater PT excursion, peak hip IR, and decreased knee flexion while running as compared to a control group. These results should help guide treatment for the running athlete that experiences MSP. LEVEL OF EVIDENCE: 3b.
Entities:
Keywords:
Exercise related leg pain; overuse injuries; running; shin splints
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