ArticleJournal of clinical medicine2022
Short- and Long-Term Effectiveness of Low-Level Laser Therapy Combined with Strength Training in Knee Osteoarthritis: A Randomized Placebo-Controlled Trial.
Article in Journal of clinical medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 3 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
19 citing papers in PubMed, 3 syntheses or guidelines pooled it, 25 citations in OpenAlex.
- Optimizing resistance training for pain management in knee and hip osteoarthritis: a pairwise and dose-response meta-analysis.Frontiers in public health · 2025Pooled it
- A systematic review and network meta-analysis on the optimal wavelength of low-level light therapy (LLLT) in treating knee osteoarthritis symptoms.Aging clinical and experimental research · 2024Pooled it
- Pooled it
- Effect Of Photobiomodulation (Low-Level Laser Therapy) In Patients With Knee Osteoarthritis: A Randomized Controlled Trial.Lasers in medical science · 2025Trial
- The effects of low-level laser therapy on muscle strength and functional outcomes in individuals with knee osteoarthritis: a double-blinded randomized controlled trial.Scientific reports · 2023Trial
- Photobiomodulation for the treatment of knee osteoarthritis: therapeutic effects and molecular mechanism.Frontiers in cell and developmental biology · 2026Review
- Low-level laser therapy in osteoarthritic pain: A narrative review with an approach to integrated clinical use.Osteoarthritis and cartilage open · 2025Review
- Using the International Index of Erectile Function-15 in Comparative Analysis Between Transcutaneous Electrical Nerve Stimulation of the Pudendal Nerve and Low-Level Laser Therapy in the Treatment of Erectile Dysfunction After COVID-19.Journal of clinical medicine · 2025Article
- Article
- High- and Low-Level Laser Therapy for the Treatment of Orthopedic Pain: A Systematic Review.Journal of lasers in medical sciences · 2025Review
- The Impact of Strength/Resistance Training on Related Outcomes of Patients with Knee Osteoarthritis: A Systematic Review and Meta-Analysis Study : Strength/Resistance Training in Knee Osteoarthritis.Galen medical journal · 2025Article
- Comparison of the Effect of High-Intensity Laser Therapy and Quadriceps Muscle Strengthening Exercises Using Biofeedback on Pain, Stiffness and Function of Patients with Knee Osteoarthritis: A Randomized Clinical Trial.Anesthesiology and pain medicine · 2024Article
- A Review of Current Approaches to Pain Management in Knee Osteoarthritis with a Focus on Italian Clinical Landscape.Journal of clinical medicine · 2024Review
- Adjunctive electrophysical therapies used in addition to land-based exercise therapy for osteoarthritis of the hip or knee: A systematic review and meta-analysis.Osteoarthritis and cartilage open · 2024Review
- The causal relationship between human brain morphometry and knee osteoarthritis: a two-sample Mendelian randomization study.Frontiers in genetics · 2024Article
- Low-Level Laser Therapy for Acute Pain: A Comprehensive Review.Current pain and headache reports · 2023Review
- Comparison between Low-Level and High-Intensity Laser Therapy as an Adjunctive Treatment for Knee Osteoarthritis: A Randomized, Double-Blind Clinical Trial.Life (Basel, Switzerland) · 2023Article
- Current advances of photobiomodulation therapy in treating knee osteoarthritis.Frontiers in cell and developmental biology · 2023Review
- Is low-level laser therapy effective for patients with knee joint osteoarthritis? implications and strategies to promote laser therapy usage.Frontiers in bioengineering and biotechnology · 2022Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors at 5 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundBoth physical activity and low-level laser therapy (LLLT) can reduce knee osteoarthritis (KOA) inflammation. We conducted a randomized clinical trial to investigate the short- and long-term effectiveness of LLLT combined with strength training in persons with KOA.
methodsFifty participants were randomly divided in two groups, one with LLLT plus strength training (
resultsThere were no significant between-group differences in the primary outcomes. However, in the laser group there was a significantly reduced number of participants using analgesic and non-steroidal anti-inflammatory drugs and increased performance in the sit-to-stand test versus placebo-control at week 52. The joint line pain pressure threshold (PPT) improved more in the placebo group than in the laser group, but only significantly at week 8. No other significant treatment effects were present. However, pain on movement and joint line PPT were worse in the placebo group at baseline, and therefore, it had more room for improvement. The short-term percentage of improvement in the placebo group was much higher than in similar trials.
conclusionsPain was reduced substantially in both groups. LLLT seemed to provide a positive add-on effect in the follow-up period in terms of reduced pain medication usage and increased performance in the sit-to-stand test.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.