case_images: PMC11338860_01
case_images: Criteria followed to progress through each phase of treatment.
case_images: fbioe-12-1385786-g001.jpg
case_images: PMC11338860_01_fbioe-12-1385786-g001.jpg
case_images: F1
case_images: The initial physical examination and the follow-up (Figure 1) was performed by an 11-year experienced physical therapist. The criteria to progress between the phases are described in Figure 1. The criteria to return to run were having rectus femoris and hamstrings flexibility and a hip flexor and extensor strength deficit of <30% compared to the contralateral (Figure 1).
case_images: Ultrasonography of the rectus femoris 1 week post-injury.
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case_images: PMC11338860_01_fbioe-12-1385786-g002.jpg
case_images: F2
case_images:  Figure 2 shows the ultrasonographic image of the rectus femoris 1 week post-injury, indicating the location and extent of the strain.
case_images: One leg step up exercise.
case_images: fbioe-12-1385786-g003.jpg
case_images: PMC11338860_01_fbioe-12-1385786-g003.jpg
case_images: F3
case_images: During phase 1 of the rehabilitation program, the patient performed all the exercises (Table 1) adapted according to muscle flexibility, rectus femoris strength, and gluteal strength four times a week (Figure 3).