Investigation of factors associated with static and dynamic balance in early-stage lung cancer survivors.

PURPOSE

Balance impairment and falls are common among patients after cancer treatment. This study aimed to compare static and dynamic balance functions in lung cancer survivors (LCS) and healthy controls and to investigate the factors related to balance in LCS.

METHODS

Cross-sectional data were collected from lung cancer patients whose treatment had been completed within the previous 3 months (n = 60) and age and gender-matched healthy controls (n = 60). Clinical characteristics and history of falls were recorded. Pulmonary function tests and measurements of respiratory muscle strength were performed. Dynamic and static balance, fear of falling, knee-extension strength, physical activity level, dyspnea, comorbidity, and quality of life (QoL) were assessed using the Time Up and Go Test, Single Leg Standing Test, the Fall Efficacy Scale-International, hand-held dynamometer, the International Physical Activity Questionnaire, the Modified Medical Research Dyspnea Scale, the Charlson Comorbidity Index, and the European Organization for Research and Treatment of Cancer QoL Scale.

RESULTS

LCS reported a higher fall rate and exhibited lower dynamic balance compared to controls (p < 0.05). The number of chemotherapy cycles, number of falls in the past year, fear of falling, perceived dyspnea, forced expiratory volume in 1 s (%), maximal inspiratory pressure (%), knee-extension strength, physical activity score, and QoL score related to physical function were correlated with balance function in LCS (p < 0.05).

CONCLUSION

LCS had a higher risk of falls and lower dynamic balance function which might be related to various clinical and physical parameters.

IMPLICATIONS FOR CANCER SURVIVORS

Identifying factors related to balance should be considered within the scope of fall prevention approaches for these patients.