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Fig. 2 | BMC Musculoskeletal Disorders

Fig. 2

From: A predictive model for hip abductor strength and knee extensor strength 12 months after total hip arthroplasty with an interaction term

Fig. 2

Results of simple slope analysis showing the effect of age on the relationship between preoperative and postoperative knee extensor strength. ●: Elderly (average + 1SD.), ○: Middle-aged (average - 1SD.). A significant regression curve was observed for the elderly group (solid line) (p<0.01), but not for the middle-aged group (dashed line) (p>0.05)

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BMC Musculoskeletal Disorders

ISSN: 1471-2474

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