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| Content Provider | frontiers |
|---|---|
| Author | Ballinger, Tarah J. Althouse, Sandra K. Olsen, Timothy P. Miller, Kathy D. Sledge, Jeffrey S. |
| Abstract | Purpose: Despite survival and quality of life benefits associated with physical activity, many breast cancer survivors remain inactive. Effective, sustainable interventions must account for individual differences in capability, motivation, and environment. Here, we evaluate the feasibility, mechanics, and efficacy of delivering an individualized, dynamic intervention to increase energetic capacity and energy expenditure. Methods: Stage 0-III breast cancer patients who had completed primary treatment were enrolled. Prior to the intervention, detailed movement data was collected with a wearable GPS and accelerometer for 3 weeks to establish baseline activity. Movement data was collected continuously throughout the 12- week intervention, during which patients received electronically- delivered, tailored, dynamic activity “prescriptions,” adjusted based on demonstrated individual capability, daily movement in their environment, and progress. Results: Of 66 enrolled, 57 participants began and completed the intervention. The intervention resulted in significant improvements in average steps (+558 steps/day, p = 0.01), energetic capacity measured by power generation on a stationary bicycle (1.76 to 1.99 W/kg lean mass, p<0.01), and quality of life (FACT-B TOI, 72.8 to 74.8, p=0.02). The greatest improvement in functional energetic capacity was seen in the lowest performing tertile at baseline (0.76 to 1.12 W/kg, p<0.01). Discussion: Wearable technology delivery of personalized activity prescriptions based on individual capability and movement behaviors demonstrates feasibility and early effectiveness.. The high variability seen in baseline activity and function, as well as in response to the intervention, supports the need for future work in precision approaches to physical activity (NCT03158519). |
| ISSN | 2234943X |
| DOI | 10.3389/fonc.2021.626180 |
| Volume Number | 11 |
| Journal | Frontiers in Oncology |
| Language | English |
| Publisher Date | 2021-04-12 |
| Access Restriction | Open |
| Subject Keyword | Accelerometry Breast cancer Activity trackers Physical activity Survivors |
| Content Type | Text |
| Resource Type | Article |
| Subject | Cancer Research Oncology |
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