Osteoarthritis
Conditions
Brief summary
Knee joint osteoarthritis (OA) reduces functional mobility and performance of daily tasks such as rising from a chair. Therefore interventions aimed at improving muscle strength and sit-to-stand task performance are very important for these patients. The effect of exercise programs, including home exercise programs (HEP), on muscle strength, joint pain and function is well known and widely researched, yet not many studies have investigated the effect of an HEP on electromyographic activity (EMG) of muscles when performing everyday tasks, such as rising from and sitting on a chair. The aim of this study was to investigate effect of prehabilitation in women with severe knee joint OA scheduled for knee joint arthroplasty (TKA).
Interventions
OTHERtherapeutical exercises
Participants of experimental group performs daily an 8-week home therapeutical exercise program. Exercises are periodized by weeks (1-8 weeks). The aim of program is the leg muscle strengthening using an elastic band (Thera-Band, System of Progressive Exercise, USA), body balance training, and leg muscle stretching.
Sponsors
University of Tartu
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
PREVENTION
Masking
NONE
Eligibility
Sex/Gender
FEMALE
Age
50 Years to 70 Years
Healthy volunteers
Yes
Inclusion criteria
* For OA patients: patients with severe knee joint OA undergoing unilateral total knee arthroplasty (TKA) * for controls: pain of joints more than 20/100 mm by VAS
Exclusion criteria
For both groups: * previous total joint arthroplasty of lower limbs * other musculoskeletal, neurological and cardiovascular diseases * any diseases affecting balance and coordination.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Muscle electromyographic (EMG) activity | up to 12 months | Electromyographic (EMG) activity of thigh muscles during gait and sit to stand task (amplitude, mV) |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Knee joint function | up to 12 months | Self-reported functional status measured by Knee Injury and Osteoarthritis Outcome Score (KOOS) - Symptoms, Pain, Daily Living Activity, Sport and Recreational Activity. Quality of Life. Maximum is 100 points (complains are absent) and minimum is 0 points (extreme complains) |
| Sit to Stand test | up to 12 months | five time Sit to Stand test from standard chair (s) |
| Mobility test | up to 12 months | Timed Up and Go test, 3-m plus return 3-m walking test (s) |
| Knee joint pain intensity | up to 12 months | Self-reported knee joint pain intensity measured by visual-analogue scale (VAS) (in mm: 0 mm - no pain and 100 mm - extreme pain) |
| Body balance | up to 12 months | Body postural sway measuring during standing using Kistler force plate (Switzerland) (mm), eyes open and eyes closed |
| Gait pattern | up to 12 months | Gait kinematic characteristics measurement using three-dimensional movement analysis system and six optoelectronic cameras (BTS S.p.A. Italy) - joint angles (degrees) |
| Leg muscles strength | up to 12 months | strength of leg extensor muscles (N) |
Outcome results
None listed