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Effectiveness of low-level laser therapy combined with eccentric exercise in treating midportion achilles tendinopathy: a randomized controlled trial
Shriya S, Arya RK, Kushwaha S, Chahar S, Manikandan P, Mehra P
Cureus 2024 Jun;16(6):e62919
clinical trial
7/10 [Eligibility criteria: Yes; Random allocation: Yes; Concealed allocation: Yes; Baseline comparability: Yes; Blind subjects: Yes; Blind therapists: No; Blind assessors: Yes; Adequate follow-up: No; Intention-to-treat analysis: No; Between-group comparisons: Yes; Point estimates and variability: Yes. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed*

BACKGROUND: Achilles tendinopathy is a common overuse tendon injury, affecting athletes in running and similar sports. Repetitive overload of the Achilles tendon is the primary cause of inflammation, collagen degeneration, and tendon thickening. This study aims to investigate the efficacy of combining low-level laser therapy (LLLT) with eccentric exercises in treating midportion Achilles tendinopathy. METHODS: This prospective randomized controlled trial was conducted at the Sports Injury Centre, Vardhman Mahavir Medical College and Safdarjung Hospital, New Delhi, from 2019 to 2022. Sixty clinically diagnosed patients with midportion Achilles tendinopathy, aged 18 to 60, were randomly assigned to two groups: Group A received eccentric exercises with LLLT, and Group B received eccentric exercises with placebo LLLT. The Victorian Institute of Sport Assessment-Achilles (VISA-A) score and the visual analog scale (VAS) score were used to measure treatment effectiveness at baseline and three, six, 12, and 24 weeks. RESULTS: The study included 60 participants, with no dropouts observed. The mean age was 33.9 +/- 8.3 years in Group A and 33.40 +/- 8.64 years in Group B, with no significant difference between the groups (p = 0.821). Both groups showed significant improvement in VISA-A and VAS scores over time (p < 0.001), but there was no statistically significant difference between the groups at any time point (p > 0.05). CONCLUSION: Adding LLLT to eccentric exercises did not provide significant additional benefits compared to eccentric exercises alone in treating midportion Achilles tendinopathy. Practitioners should prioritize evidence-based interventions, such as eccentric exercises, as the primary treatment modality while considering alternative therapies for adjunctive purposes. Further research is needed to explore additional modalities or combination therapies that may enhance outcomes for patients with Achilles tendinopathy.

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