The goal of this clinical trial is to learn if a high intensity magnetic field is an effective way to treat quadriceps muscle atrophy after knee arthroscopic surgery in adult patients. The main questions it aims to answer are: Is high intensity magnetic field muscle stimulation is an effective way to treat quadriceps muscle atrophy Is high intensity magnetic field muscle stimulation is more effective and more tolerable option for quadriceps muscle stimulation than transcutaneous muscle electrical stimulation Researchers will compare high intensity magnetic field muscle stimulation to transcutaneous muscle electrical stimulation and control group, to see if high intensity magnetic field muscle stimulation works to treat quadriceps muscle atrophy. Participants will: receive high intensity magnetic field or transcutaneous muscle electrical stimulation 1 time/day for 14 days, Visit the rehabilitation department for testing before/after and 1 month after rehabilitation.
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Thigh circumference measurement with a centimeter tape (cm)
Timeframe: Assessments are performed at the beginning, end, and 1 month after rehabilitation.
Ultrasound assessment of quadriceps muscle cross-sectional area
Timeframe: Assessments are performed at the beginning, end, and 1 month after rehabilitation.
Muscle echogenicity assessed by ultrasound
Timeframe: Assessments are performed at the beginning, end, and 1 month after rehabilitation.
Muscle strength/power (kg), assessed with a hand-held dynamometer
Timeframe: Assessments are performed at the beginning, end, and 1 month after rehabilitation.
Knee joint pain intensity
Timeframe: Assessments are performed at the beginning, end, and 1 month after rehabilitation.