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document
Adherence to moderate-intensity exercise during breast cancer therapy . PURPOSE The aims of this pilot study were the following : 1 ) to examine patterns of adherence to a brisk walking program in women receiving adjuvant chemotherapy or radiation therapy for newly diagnosed breast cancer using a prospective , randomized , controlled experimental design ; 2 ) to examine the influence of disease symptoms and treatment side effects on exercise levels ; and 3 ) to suggest methods that may improve future clinical trials of moderate-intensity exercise in similar populations . DESCRIPTION OF STUDY Fifty-two patients with newly diagnosed breast cancer were randomly assigned to one of two treatment arms : usual care or usual care plus exercise . Those assigned to the exercise group received a standardized , self-administered , home-based brisk walking intervention in addition to usual care . Each day subjects completed self-report diary forms that elicited information about activity levels , and the occurrence of symptoms and side effects during cancer treatment . RESULTS Analyses of self-reported daily activity levels revealed a diffusion of treatment effect . Fifty percent of the usual-care group reported maintaining or increasing their physical activity to a moderate-intensity level , while 33 % of the exercise group did not exercise at the prescribed levels . Analyses of self-reported disease symptoms and treatment side effects did not reveal clinically meaningful differences between the two groups . CLINICAL IMPLICATIONS The results of this study suggest that women who exercised regularly before receiving a breast cancer diagnosis attempted to maintain their exercise programs . Women who lead sedentary lifestyles may benefit from a structured exercise program that includes information and support related to exercise adherence strategies .
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Intervention_Physical
moderate-intensity exercise
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Intervention_Physical
brisk walking program
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Intervention_Physical
adjuvant chemotherapy
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Intervention_Physical
radiation therapy
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Intervention_Physical
exercise
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Intervention_Educational
usual care
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Intervention_Physical
exercise
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Intervention_Physical
standardized , self-administered , home-based brisk walking intervention
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Intervention_Physical
exercise programs
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Intervention_Physical
structured exercise program
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Outcome_Physical
maintaining or increasing their
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Outcome_Mental
physical activity
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Outcome_Physical
to a moderate-intensity level
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Outcome_Physical
self-reported disease symptoms
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Outcome_Adverse-effects
treatment side effects
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Participant_Condition
breast cancer
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Participant_Condition
women receiving adjuvant chemotherapy or radiation therapy for newly diagnosed breast cancer
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Participant_Sample-size
Fifty-two