Vol. 9, Issue 3, Part A (2025)

Shoulder tendon inflammation (tendinitis) represents a frequent musculoskeletal complaint, particularly in the acute phase were inflammatory mediators trigger pain and functional limitations. Conventional conservative management often includes thermal modalities such as hot or cold compresses to alleviate symptoms, yet the comparative effectiveness of these interventions remains inadequately clarified. This research titled “Comparison of Pain Relief Using Hot vs Cold Compress in Acute Shoulder Tendinitis” aims to evaluate the differential effects of hot‑compress therapy versus cold‑compress therapy on pain reduction and shoulder functional outcomes in individuals with acute shoulder tendinitis. The background underscores the prevalence of shoulder tendinopathy and the physiological rationale underpinning thermal interventions: cold therapy may reduce inflammation and numb nociceptors, while heat therapy may enhance blood flow and relax muscle spasm. The problem statement identifies a gap in standardized evidence regarding which modality offers superior analgesic benefit in the acute phase of shoulder tendinitis, and whether one should be preferred in clinical practice. The objectives are

1. To compare pain intensity reduction following hot versus cold compress application,
2. To assess differences in shoulder range of motion and functional status between the two groups, and
3. To determine short‑term safety and patient satisfaction with each modality.

The hypothesis posited that participants treated with the hot compress would experience greater pain relief and improved functional outcomes compared to those receiving cold compress, owing to enhanced tissue perfusion and muscle relaxation; alternatively, the null hypothesis asserts no significant difference between the two modalities. The investigation employs a randomized controlled design in patients presenting with acute shoulder tendinitis (onset <4 weeks), randomizing to either hot compress (40‑45 °C for 20 minutes, twice daily) or cold compress (0‑4 °C for 20 minutes, twice daily) for 7 days, with pain measured by a numerical rating scale and function assessed via a validated shoulder‑specific questionnaire. Findings will inform evidence‑based recommendations for first‑line thermal management in acute shoulder tendon inflammation and contribute to optimizing conservative care pathways in musculoskeletal practice.