Effects of High-Intensity Laser Therapy Combined With Exercise in Patients With Knee Osteoarthritis (HILT-KOA)
Effects of High-intensity Laser Therapy on Muscle Strength in People With Knee Osteoarthritis
The goal of this clinical trial was to determine whether high-intensity laser therapy (HILT) combined with exercise improves pain, physical function, and muscle strength in people with knee osteoarthritis.
The main questions the study aimed to answer were:
- Did HILT combined with exercise lower pain more than sham laser combined with exercise?
- Did HILT combined with exercise improve physical function more than sham laser combined with exercise?
- Did HILT combined with exercise improve knee extensor muscle strength more than sham laser combined with exercise?
Researchers compared HILT plus exercise with sham laser plus exercise to determine whether HILT provided additional benefits beyond those achieved with exercise alone.
Participants:
- Received either HILT or sham laser treatment for four weeks.
- Participated in a standardized exercise program.
- Completed assessments of pain, physical function, and muscle strength before and after treatment.
調査の概要
状態
詳細な説明
Knee osteoarthritis is a common musculoskeletal condition associated with pain, reduced physical function, and muscle weakness. Exercise therapy is widely recommended as a first-line treatment; however, the additional benefits of high-intensity laser therapy (HILT) remain uncertain. Previous studies have reported improvements in pain and function following HILT, but results have been inconsistent, and its effects on muscle strength have not been fully established.
The purpose of this randomized, participant-blinded, sham-controlled clinical trial was to evaluate the effects of HILT combined with exercise on pain, physical function, and knee extensor muscle strength in people with knee osteoarthritis.
Participants with clinically diagnosed knee osteoarthritis were randomly assigned to one of two groups. The experimental group received HILT combined with a standardized exercise program, while the control group received sham laser treatment combined with the same exercise program. The intervention lasted four weeks and included ten treatment sessions.
Pain intensity, physical function, and knee extensor muscle strength were assessed before and after the intervention using validated clinical outcome measures. The primary objective was to determine whether HILT provides additional benefits beyond those achieved with exercise alone.
The findings of this study may help clarify the role of HILT as an adjunct treatment in rehabilitation programs for people with knee osteoarthritis and contribute to the development of evidence-based clinical recommendations.
研究の種類
入学 (実際)
段階
- 適用できない
連絡先と場所
研究場所
-
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Santiago Metropolitan
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Santiago、Santiago Metropolitan、チリ、7760197
- Departamento de Kinesiología
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参加基準
適格基準
就学可能な年齢
- 大人
- 高齢者
健康ボランティアの受け入れ
説明
Inclusion Criteria:
- Clinical diagnosis of knee osteoarthritis.
- Age between 45 and 77 years.
- Pain intensity of at least 3 points on the Visual Analogue Scale (VAS).
Exclusion Criteria:
- Presence of other musculoskeletal conditions affecting the lower limbs.
- History of lower limb surgery.
- Tattoos in the laser application area.
- Recent intra-articular corticosteroid injection.
- Comorbidities limiting participation in physical exercise, such as chronic obstructive pulmonary disease, stroke, or severe heart failure.
研究計画
研究はどのように設計されていますか？
デザインの詳細
- 主な目的：処理
- 割り当て：ランダム化
- 介入モデル：並列代入
- マスキング：独身
武器と介入
参加者グループ / アーム |
介入・治療 |
|---|---|
|
実験的：High Intensity Laser Therapy + Exercise
Participants received high-intensity laser therapy (HILT) combined with a standardized exercise program.
HILT was delivered using an MLS laser device (MPHI D, ASA Laser, Italy) over four periarticular knee application points during 10 treatment sessions over four weeks.
The exercise program included strengthening, flexibility, and balance exercises and was identical to that provided to the sham comparator group.
|
High-intensity laser therapy (HILT) was delivered using an MLS laser device (MPHI D, ASA Laser, Italy), which combines synchronized 808 nm and 905 nm wavelengths.
Treatment was applied to four periarticular knee regions, including the medial and lateral patellar borders, the suprapatellar region, and the medial tibiofemoral joint line.
Participants received 10 treatment sessions over four weeks.
HILT was administered in combination with a standardized exercise program.
他の名前：
The exercise program was performed during each treatment session and included strengthening, flexibility, and balance exercises targeting the lower extremities.
Exercises included stationary cycling, hamstring and gastrocnemius stretching, straight-leg raises, knee extensions, heel raises, step-ups, and single-leg balance activities.
The program was standardized for both study groups and was delivered over 10 sessions during a four-week period.
他の名前：
|
|
偽コンパレータ：Sham Laser + Exercise
Participants received sham laser treatment combined with the same standardized exercise program used in the experimental group.
Sham treatment was delivered using the same laser device and treatment schedule as the active intervention but with subtherapeutic parameters designed to maintain participant blinding.
The intervention consisted of 10 treatment sessions over four weeks.
The exercise program included strengthening, flexibility, and balance exercises.
|
The exercise program was performed during each treatment session and included strengthening, flexibility, and balance exercises targeting the lower extremities.
Exercises included stationary cycling, hamstring and gastrocnemius stretching, straight-leg raises, knee extensions, heel raises, step-ups, and single-leg balance activities.
The program was standardized for both study groups and was delivered over 10 sessions during a four-week period.
他の名前：
Sham laser treatment was delivered using the same laser device, treatment schedule, and application sites as the active intervention.
Subtherapeutic parameters were used to mimic the treatment procedure while minimizing biological effects and maintaining participant blinding.
Participants received 10 treatment sessions over four weeks in combination with the same standardized exercise program used in the experimental group.
他の名前：
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この研究は何を測定していますか？
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Change From Baseline in Knee Extensor Muscle Strength After 4 Weeks of Treatment
時間枠：Baseline and Week 4
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Change in knee extensor muscle strength measured with a dynamometer.
Results were expressed in Newtons (N).
Higher values indicate greater muscle strength.
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Baseline and Week 4
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二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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Change From Baseline in Pain Intensity After 4 Weeks of Treatment
時間枠：Baseline and Week 4
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Change in pain intensity measured using the Visual Analogue Scale (VAS).
Scores range from 0 to 10, with higher scores indicating greater pain intensity.
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Baseline and Week 4
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Change From Baseline in WOMAC Total Score After 4 Weeks of Treatment
時間枠：Baseline and Week 4
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Change in symptoms and functional status measured using the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC).
Higher scores indicate greater impairment.
|
Baseline and Week 4
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協力者と研究者
捜査官
- 主任研究者：Ivan Patricio Silva-Satlov, Magister、Universidad Metropolitana de Ciencias de la Educacion
出版物と役立つリンク
一般刊行物
- Song HJ, Seo HJ, Kim D. Effectiveness of high-intensity laser therapy in the management of patients with knee osteoarthritis: A systematic review and meta-analysis of randomized controlled trials. J Back Musculoskelet Rehabil. 2020;33(6):875-884. doi: 10.3233/BMR-191738.
- Akaltun MS, Altindag O, Turan N, Gursoy S, Gur A. Efficacy of high intensity laser therapy in knee osteoarthritis: a double-blind controlled randomized study. Clin Rheumatol. 2021 May;40(5):1989-1995. doi: 10.1007/s10067-020-05469-7. Epub 2020 Oct 19.
- Jang S, Lee K, Ju JH. Recent Updates of Diagnosis, Pathophysiology, and Treatment on Osteoarthritis of the Knee. Int J Mol Sci. 2021 Mar 5;22(5):2619. doi: 10.3390/ijms22052619.
- Siriratna P, Ratanasutiranont C, Manissorn T, Santiniyom N, Chira-Adisai W. Short-Term Efficacy of High-Intensity Laser Therapy in Alleviating Pain in Patients with Knee Osteoarthritis: A Single-Blind Randomised Controlled Trial. Pain Res Manag. 2022 Oct 21;2022:1319165. doi: 10.1155/2022/1319165. eCollection 2022.
研究記録日
主要日程の研究
研究開始 (実際)
一次修了 (実際)
研究の完了 (実際)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (実際)
学習記録の更新
投稿された最後の更新 (実際)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
本研究に関する用語
キーワード
追加の関連 MeSH 用語
その他の研究ID番号
- 422/2023
個々の参加者データ (IPD) の計画
個々の参加者データ (IPD) を共有する予定はありますか?
IPD プランの説明
IPD 共有時間枠
IPD 共有アクセス基準
IPD 共有サポート情報タイプ
- STUDY_PROTOCOL
- SAP
- ICF
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