Related Experiment Video
Updated: Aug 7, 2026
12:59
Improving Strength, Power, Muscle Aerobic Capacity, and Glucose Tolerance through Short-term Progressive Strength Training Among Elderly People
Published on: July 5, 2017
Isokinetic dynamometry in elderly women undergoing total knee arthroplasty: a comparative study
Marcos de Amorim Aquino1, Luiz Eugênio Garcez Leme
1Department of Orthopedics and Traumatology, São Paulo University Medical School, Brazil.
Clinics (Sao Paulo, Brazil)
|July 13, 2006
Summary
Isokinetic dynamometry reliably assesses knee function after total knee arthroplasty. It identifies muscle imbalances, guiding personalized rehabilitation for improved gait post-surgery.
Area of Science:
- Orthopedics
- Rehabilitation Medicine
- Biomechanics
Background:
- Total knee arthroplasty (TKA) aims to restore function, but post-operative recovery and muscle function assessment can be challenging.
- Understanding the evolution of muscle strength and balance after TKA is crucial for effective rehabilitation.
Purpose of the Study:
- To evaluate the reliability and validity of isokinetic dynamometry for assessing muscle function following TKA.
- To determine if isokinetic assessment can detect changes in knee flexor and extensor muscle performance after surgery.
Main Methods:
- A cohort of 20 patients undergoing TKA and 25 age-matched controls were assessed.
- Computerized isokinetic dynamometry (CYBEX 6000) was used to measure knee flexor and extensor muscle strength and ratios.
Main Results:
- While the total flexor/extensor effort ratio showed no significant difference between the operated knee and the control's non-dominant knee, the flexion/extension ratio concerning maximum torque was significantly different.
- This indicates specific alterations in torque production capacity post-TKA.
Conclusions:
- Isokinetic dynamometry is a valid tool for assessing the functional recovery of knee muscles after TKA.
- Identifying deficits in the flexor and extensor muscle balance allows for tailored rehabilitation programs to optimize gait and function.
