Hip Strength and Knee Pain
PatelloFemoral joint pain (PFJP) is a common cause of anterior knee pain that many people suffer with.
Common complaints include pain sitting with a bent knee, going up/down stairs, and running/jumping.
Nunes et al (2019), looked at the difference in functional ability between people with and without PFJP, and how hip strength relates. .
HIGHLIGHTS (If you read nothing else):
- People with PFP have objectively measured functional impairments.
- Objective function is associated with hip strength and power in people with PFP.
- Progressive resistance training may help address functional impairments.
Functional assessments included:
Stair climbing (time)
Single-legged chair stand (repetitions)
Step down (repetitions)
Forward hop for distance
Side hop (repetitions). .
Hip abductor and extensor tests included:
Dynamic strength. .
Self-reported function included:
The PFP group was:
15% slower climbing stairs.
12% fewer chair stands performed.
20% shorter forward hop.
Lower hip strength and power correlated with lower function.
Lower Kujala scores correlated with longer stair climbing time.
People with PFJP have functional impairments, associated with reduced hip muscle capacity.
Progressive hip muscle resistance training may be beneficial.
Assessment of objective and subjective capacity is warranted.
Nunes, G., et al. 2019. People with patellofemoral pain have impaired functional performance, that is correlated to hip muscle capacity. Physical Ther Sport. 40, pp. 85-90.