Rehabilitation of XXXX Using Hip Extensor Strengthening and Landing-Strategy Modification: Case Report With 6-Month Follow-up.

@entity1 @entity924 @entity158
UNASSIGNED: Study Design Case report. Background Although eccentric exercises have been a cornerstone of the rehabilitation of athletes with patellar @entity924 , the effectiveness of this intervention is sometimes less than ideal. Athletes with patellar @entity924 have been shown to have different jump-landing patterns and lower hip extensor strength compared to asymptomatic athletes. To our knowledge, the effectiveness of an intervention addressing these impairments has not yet been investigated. Case Description The @entity1 was a 21-year-old male volleyball athlete with a 9-month history of patellar tendon @entity158 . @entity158 was measured with a visual analog scale. Disability was measured with the Victorian Institute of Sport Assessment-patella questionnaire. These assessments were conducted before and after an 8-week intervention, as well as at 6 months after the intervention. Hip and knee kinematics and kinetics during drop vertical jump and isometric strength were also measured before and after the 8-week intervention. The intervention consisted of hip extensor muscle strengthening and jump landing strategy modification training. The @entity1 did not interrupt volleyball practice/competition during rehabilitation. Outcomes After the 8-week intervention and at 6 months postintervention, the athlete was completely asymptomatic during sports participation. This favorable clinical outcome was accompanied by a 50% increase in hip extensor moment, a 21% decrease in knee extensor moment, and a 26% decrease in patellar tendon force during jump landing measured at 8 weeks. Discussion This case report provides an example of how an 8-week intervention of hip muscle strengthening and jump-landing modification @entity158 and disability and improved jump-landing biomechanics in an athlete with patellar @entity924 . Level of Evidence Therapy, level 4. J Orthop Sports Phys Ther 2015;45(11):899-909. Epub 21 Sep 2015. doi:10.2519/jospt.2015.6242.
