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Accelerometer-Measured Sedentary Patterns are Associated with Incident Falls in Older Women.
Monday,2021-01-25 15:51 America/Los_Angeles — ecterry
| Title | Accelerometer-Measured Sedentary Patterns are Associated with Incident Falls in Older Women. |
| Publication Type | Journal Article |
| Year of Publication | 2020 |
| Authors | Rosenberg, DE, Rillamas-Sun, E, Bellettiere, J, LaMonte, M, Buchner, DM, Di, C, Hunt, J, Marshall, S, Stefanick, M, Zhang, Y, LaCroix, AZ |
| Journal | J Am Geriatr Soc |
| Date Published | 2020 Nov 30 |
| ISSN | 1532-5415 |
| Abstract | <p><b>BACKGROUND/OBJECTIVE: </b>Falls cause significant problems for older adults. Sedentary time is associated with lower physical function and could increase the risk for falls.</p><p><b>DESIGN: </b>Prospective study.</p><p><b>SETTING: </b>Sites across the United States.</p><p><b>PARTICIPANTS: </b>Older women (N = 5,545, mean age 79 years) from the Women' Health Initiative Objective Physical Activity and Cardiovascular Health study.</p><p><b>MEASUREMENTS: </b>Accelerometers worn at the hip for up to 1 week collected measures of daily sedentary time and the mean sedentary bout duration, a commonly used metric for sedentary accumulation patterns. For up to 13 months after accelerometer wear, women reported daily whether they had fallen on monthly calendars.</p><p><b>RESULTS: </b>In fully adjusted models, the incident rate ratios (95% confidence interval) for quartiles 1 (lowest), 2, 3, and 4 of sedentary time respectively were 1.0 (ref.), 1.07 (0.93-1.24), 1.07 (0.91-1.25), and 1.14 (0.96-1.35; P-trend = .65) and for mean sedentary bout duration was 1.0 (ref.), 1.05 (0.92-1.21), 1.02 (0.88-1.17), and 1.17 (1.01-1.37; P-trend = .01), respectively. Women with a history of two or more falls had stronger associations between sedentary time and falls incidence compared with women with a history of no or one fall (P for interaction = .046).</p><p><b>CONCLUSIONS: </b>Older women in the highest quartile of mean sedentary bout duration had a significantly increased risk of falling. Women with a history of frequent falling may be at higher risk for falling if they have high sedentary time. Interventions testing whether shortening total sedentary time and/or sedentary bouts lowers fall risk are needed to confirm these observational findings.</p> |
| DOI | 10.1111/jgs.16923 |
| Alternate Journal | J Am Geriatr Soc |
| PubMed ID | 33252141 |
| Grant List | K23HL119352 / HL / NHLBI NIH HHS / United States R01HL105065 / HL / NHLBI NIH HHS / United States T32HL079891-11 / HL / NHLBI NIH HHS / United States HHSN268201600018C / HL / NHLBI NIH HHS / United States HHSN268201600001C / HL / NHLBI NIH HHS / United States HHSN26820160 / / U.S. Department of Health and Human Services / |
ePub date:
21/01