Progressive Muscle Relaxation for Pain and Quality of Life in Thyroid Cancer (PMRT-ThyCa)

This is a single-center, parallel-group, randomized controlled trial to be conducted at PINUM Cancer Hospital, Faisalabad, Pakistan. A total of 32 patients with histologically confirmed thyroid cancer (Stage I-III) undergoing chemotherapy (1-3 sessions) will be enrolled. Inclusion criteria: age 30-50 years, moderate pain (NPRS 3-7), baseline FACT-G score ≥80%, history of lobectomy or thyroidectomy. Exclusion criteria: comorbidities (cardiomyopathy, respiratory disorders, severe mental illness), recent fractures or surgeries, inability to follow instructions, current practice of relaxation therapies. Participants will be randomly allocated 1:1 using an online random number generator into two groups. Experimental group (n=16): Progressive Muscle Relaxation Technique (PMRT) once daily for 4-5 consecutive days, each session 20-40 minutes, targeting head/neck, shoulders, arms/hands, lower back/hips, calves/thighs, and feet/toes. Each movement involves deep inhalation, tensing for 10-20 seconds, then exhalation with relaxation. Control group (n=16): gentle range-of-motion and stretching exercises of same frequency and duration. Outcomes: pain (NPRS, 0-10) and quality of life (FACT-G, 4 subscales) measured at baseline and post-intervention. Normality of data assessed by using Shapiro-Wilk test. Between-group comparisons is performed by using Mann-Whitney U test, and within-group pre-post comparisons using Wilcoxon signed-rank test. No adverse events are anticipated. After study completion, results will be submitted separately in the Results Module.