Correlation between performance on The Timed Up And Go with muscle strength in patients with breast cancer: cross sectional study
DOI:
https://doi.org/10.55892/jrg.v9i20.3459Keywords:
Breast Neoplasms, Handgrip Strength, Gait Speed, Maximal Respiratory PressuresAbstract
Introduction: Therapeutic modalities used in cancer treatment, although increasing survival, are associated with several adverse effects. Cancer-related sarcopenia, chemotherapy-induced neurosensory alterations, and respiratory impairment resulting from radiotherapy contribute to reduced functional capacity in patients with breast cancer. Objective: To evaluate the correlation between performance on the Timed Up and Go (TUG) test and peripheral and respiratory muscle strength in patients with breast cancer. Methods: This is an observational, cross-sectional study conducted with patients diagnosed with breast cancer receiving care at the physiotherapy outpatient clinic of a tertiary hospital in the Federal District, Brazil. The variables of interest were functional performance, assessed by the TUG; handgrip strength (HGS); and maximal inspiratory pressure (MIP). Results: The sample included 84 participants, predominantly women (98.8%), with a mean age of 53.05 years. A negative and weak correlation was observed between TUG time and HGS (ρ = −0.366; p = 0.001). The correlation between TUG and MIP was statistically significant but of negligible magnitude (ρ = −0.232; p = 0.04). Conclusion: Functional performance was significantly associated with peripheral muscle strength in patients with breast cancer, whereas respiratory muscle strength showed a low-magnitude correlation, indicating lower clinical relevance in this population. Thus, HGS stands out as an important marker of functional capacity and risk of functional decline.
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