SHORTS: The Role of Muscle Strengthening in Exercise Therapy for Knee OA #MinimumThreshold

Bartholdy C, Juhl C, Christensen R, Lund H, Zhang W, & Henriksen M. The Role of Muscle Strengthening in Exercise Therapy for Knee Osteoarthritis: A Systematic Review and Meta-Regression Analysis of Randomized Trials. Seminars in Arthritis and Rheumatism, 2017;1-13.

• https://www.ncbi.nlm.nih.gov/pubmed/28438380

Bartholdy, C., Juhl, C., Christensen, R., Lund, H., Zhang, W., & Henriksen, M. (2017). SHORTS: The Role of Muscle Strengthening in Exercise Therapy for Knee Osteoarthritis: A Systematic Review and Meta-Regression Analysis of Randomized Trials. Seminars in Arthritis and Rheumatism, 1-13. Bartholdy, C., Juhl, C., Christensen, R., Lund, H., Zhang, W., & Henriksen, M. (2017). SHORTS: The Role of Muscle Strengthening in Exercise Therapy for Knee Osteoarthritis: A Systematic Review and Meta-Regression Analysis of Randomized Trials. Seminars in Arthritis and Rheumatism, 1-13.

ACSM Guidelines for STRENGTH gains:

• Voluntary contraction versus an external load – equipment or free weights
• MINIMUM >40% 1RM corresponding to light or very light intensity
• 2-4 sets
• 8-12 repetitions
• To contraction failure OR exhaustion
• 2-3x/week

KEY Takeaways:

1. Knee extensor muscle strengthening vs other exercise types

-ACSM strengthening was found to be superior to non-ACSM strengthening

-No significant difference between the two with regards to pain or disability

2. Association between knee extensor strength gain and PAIN:

-Minimum 30% strength increase required to decrease pain

3. Association between knee extensor strength gain and DISABILITY:

-Minimum 40% strength increase required to decrease disability

Questions or comments? Find me here:

Twitter: @jdaniels_DPT

Facebook: Joe Daniels

Email: jd2012@nova.edu

Enjoy!

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