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| Home-based physical activity after treatment for esophageal cancer -- a randomized controlled trial |
| Anandavadivelan P, Malberg K, Vikstrom K, Nielsen S, Holdar U, Johar A, Lagergren P |
| Cancer Medicine 2023 Feb;12(3):3477-3487 |
| clinical trial |
| 6/10 [Eligibility criteria: Yes; Random allocation: Yes; Concealed allocation: Yes; Baseline comparability: Yes; Blind subjects: No; Blind therapists: No; Blind assessors: No; Adequate follow-up: No; Intention-to-treat analysis: Yes; Between-group comparisons: Yes; Point estimates and variability: Yes. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed* |
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BACKGROUND: The treatment of most esophageal cancer patients includes chemo (radio) therapy and extensive surgery, causing physical decline with loss of muscles. This trial aimed to test the hypothesis that a tailored home-based physical activity (PA) intervention improves muscle strength and mass in patients having undergone curative treatment for esophageal cancer. METHODS: Patients operated for esophageal cancer 1 year earlier were included in a nationwide randomized controlled trial in Sweden in 2016 to 2020. The intervention group was randomized to a 12-week home-based exercise program, while the control group was encouraged to maintain routine daily PA. The primary outcomes were changes in maximal/average hand grip strength measured with hand grip dynamometer and lower extremity strength measured using 30-second chair stand test and muscle mass measured using a portable bio-impedance analysis monitor. Intention-to-treat analysis was used, and results were presented as mean differences (MDs) with 95% confidence intervals (CIs). RESULTS: Among 161 randomized patients, 134 completed the study, 64 in the intervention group and 70 in the control group. Compared with the control group (MD 2.73; 95% CI 1.75 to 3.71), patients in the intervention group (MD 4.48; 95% CI 3.18 to 5.80) had statistically significantly (p = 0.03) improved lower extremity strength. No differences were seen for hand grip strength or muscle mass. CONCLUSION: A home-based PA intervention 1 year after surgery for esophageal cancer improves lower extremity muscle strength.
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