An increase in muscle size and strength and an improvement in levels of mobility can occur after 12 weeks of resistance exercise in older individuals 1 to 4 years after total knee arthroplasty (TKA), say authors of study published in the June issue (Vol 467 Issue 6) of Clinical Orthopaedics and Related Research. APTA members Paul C. LaStayo, PT, PhD, CHT, Whitney Meier, PT, DPT, OCS, Robin L. Marcus, PT, PhD, OCS, Ryan Mizner, PT, MPT, PhD, and Lee Dibble, PT, PhD, ATC, coauthored the article.

17 participants with either a unilateral or bilateral TKA (total of 24 knees) were included in this research.

Increases in quadriceps muscle volume and knee extension strength followed 12 weeks of eccentric exercise. Improvements also were noted in four mobility tests. Similar improvements were noted in the traditional exercise group in two mobility tests. When the exercise mode focuses on eccentric resistance, the muscle growth response is greater as is the improvement in important mobility tasks, the authors add.

So if you’ve had a knee replacement several years ago, it’s not too late to begin exercising again. Call ECRC Physical Therapy to get the best program for you.