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Muscle Isometric Contraction for the Treatment of Knee Osteoarthritis
Sponsor: Chengdu Sport University
Summary
This study compares the effects of three different intensities of Muscle Isometric Contraction (MIC) on balance ability, proprioception, muscle strength, KOA symptoms, and inflammatory factors in synovial fluid among elderly individuals with Knee Osteoarthritis (KOA).
Key Details
Gender
FEMALE
Age Range
60 Years - 80 Years
Study Type
INTERVENTIONAL
Enrollment
120
Start Date
2025-09-20
Completion Date
2025-09-20
Last Updated
2025-03-11
Healthy Volunteers
Yes
Conditions
Interventions
Low-intensity group
Firstly, they received the same health education as the control group. Subsequently, the elderly individuals with Knee Osteoarthritis (KOA) underwent five interventions per week targeting the quadriceps femoris muscle. For each intervention, the quadriceps performed an isometric contraction and relaxation for 1 second each. The intervention consisted of 10 repetitions per set of Muscle Isometric Contraction (MIC), guided by a rhythmic timer, for a total of 10 sets, with a 30-second rest between sets. The entire intervention lasted for 16 weeks.
Medium-intensity group
Firstly, they received the same health education as the control group. Subsequently, the elderly individuals with Knee Osteoarthritis (KOA) underwent five interventions per week targeting the quadriceps femoris muscle. For each intervention, the quadriceps performed an isometric contraction and relaxation for 1 second each. The intervention consisted of 20 repetitions per set of Muscle Isometric Contraction (MIC), guided by a rhythmic timer, for a total of 10 sets, with a 30-second rest between sets. The entire intervention lasted for 16 weeks.
High-intensity group
Firstly, they received the same health education as the control group. Subsequently, the elderly individuals with Knee Osteoarthritis (KOA) underwent five interventions per week targeting the quadriceps femoris muscle. For each intervention, the quadriceps performed an isometric contraction and relaxation for 1 second each. The intervention consisted of 30 repetitions per set of Muscle Isometric Contraction (MIC), guided by a rhythmic timer, for a total of 10 sets, with a 30-second rest between sets. The entire intervention lasted for 16 weeks.