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The purpose of this study was to investigate the intervention effects of low level laser for knee OA group
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| 808nm | Experimental | The wavelength of this experimental group was 808nm, total power: 3.6W, 15 minutes a session, 3 times a week for 8 weeks |
|
| 660nm | Active Comparator | The wavelength of this experimental group was 660nm, total power: 3.6W, 15 minutes a session, 3 times a week for 8 weeks |
|
| Control | Placebo Comparator | The wavelength of control group, total power: 0.0072W, 15 minutes a session, 3 times a week for 8 weeks |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Low level laser treatment | Device | The intervention protocol includes 2 wavelength as the experimental group, each of the were 808nm, 660nm, and 1 placebo intervention which output total power is only 0.0072W. |
| Measure | Description | Time Frame |
|---|---|---|
| Changes of muscular strength of thigh measured by handheld dynamometer | Muscular strength of the knee extensor and flexor on both sides and will be normalized by the body weight of participants' (lb/kg) | Baseline and after treatment, 8 weeks intervention |
| Measure | Description | Time Frame |
|---|---|---|
| Changes of walking speed measured by the stop watch | 40-m walk test, participants are instructed to walk as fast as they could, investigator records the time they spend. (seconds) | Baseline and after treatment, 8 weeks intervention |
| Changes of stair climbing ability measured by the stop watch |
| Measure | Description | Time Frame |
|---|---|---|
| Changes of joint range of motion measured by the goniometer | Joint range of motion of the hip flexion, internal and external rotation, knee flexion, extension on both sides(degrees) | Baseline and after treatment, 8 weeks intervention |
Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Cheng-Feng Lin, Ph.D | Department of Physical Therapy, National Cheng-Kung University | Study Chair |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Department of Physical Therapy, National Cheng-Kung University | Tainan | 701 | Taiwan |
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| ID | Term |
|---|---|
| D020370 | Osteoarthritis, Knee |
| ID | Term |
|---|---|
| D010003 | Osteoarthritis |
| D001168 | Arthritis |
| D007592 | Joint Diseases |
| D009140 | Musculoskeletal Diseases |
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stair climbing test, participants are instructed to climb stairs with a total height of 180 cm as fast as they could, investigator records the time they spend. (seconds) |
| Baseline and after treatment, 8 weeks intervention |
| Changes of chair stand ability, the stop watch will be used to measure time and investigators count the time that participants complete | sit-to-stand test, participants are instructed to repeat chair stand movement as fast as they could, investigator records the times they complete. (times) | Baseline and after treatment, 8 weeks intervention |
| Changes of dynamic balance ability measured by the stop watch | timed UP&Go test, participants are instructed to stand up from a chair and walk as fast as they could for 3 meters and back to the chair, investigator records the time they spend. (seconds) | Baseline and after treatment, 8 weeks intervention |
| D012216 |
| Rheumatic Diseases |