Feasibility and Preliminary Effects of Inspiratory Muscle Training in Patients With Knee Osteoarthritis Awaiting Total Knee Arthroplasty: An 8-Week, Pilot Randomized Controlled Trial.
Shan Su, Clare Chung-Wah Yu, Zhi Yao et al.
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In 30 seconds
This pilot randomized controlled trial evaluated the feasibility and preliminary effects of inspiratory muscle training (IMT) on aerobic capacity in 35 patients with knee osteoarthritis awaiting total knee arthroplasty. Results indicated that IMT significantly improved estimated V̇o 2 max by 2.38 mL/kg/min compared to controls, alongside enhancements in inspiratory muscle strength, pain, knee function, and quality of life.
Key findings
- IMT improved estimated V̇o 2 max by 2.38 mL/kg/min compared to controls (P=.005).
- Inspiratory muscle strength increased by 21.83 cmH 2 O in the IMT group (P<.001).
- High adherence rates were observed, with a median of 100% in the IMT group.
- Pain, knee function, and quality of life showed significant improvements (all P<.05).
Why it matters
The findings suggest that incorporating inspiratory muscle training into preoperative rehabilitation may enhance aerobic capacity and overall health outcomes for patients with knee osteoarthritis awaiting surgery, highlighting a potential area for improving patient care.