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31 results on '"Blankenship, Jennifer M."'

6. Patterns of Sitting, Standing, and Stepping After Lower Limb Amputation

Author

Miller, Matthew J., Blankenship, Jennifer M., Kline, Paul W., Melanson, Edward L., and Christiansen, Cory L.

Subjects
Amputations of leg -- Complications and side effects -- Statistics, Sedentary behavior -- Statistics -- Health aspects, Sitting position -- Health aspects -- Statistics, Standing position -- Health aspects -- Statistics, Walking -- Health aspects -- Statistics
Abstract

Objective. The objectives of this study were to describe sitting, standing, and stepping patterns for people with lower limb amputation (LLA) and to compare sitting, standing, and stepping between people with dysvascular LLA and people with traumatic LLA. Methods. Participants with dysvascular or traumatic LLA were included if their most recent LLA was at least 1 year earlier, they were ambulating independently with a prosthesis, and they were between 45 and 88 years old. Sitting, standing, and stepping were measured using accelerometry. Daily sitting, standing, and stepping times were expressed as percentages of waking time. Time spent in bouts of specified durations of sitting (90 minutes), standing (0-1, 1-5, and >5 minutes), and stepping (0-1, 1-5, and >5 minutes) was also calculated. Results. Participants (N = 32; mean age = 62.6 [SD = 7.8] years; 84% men; 53% with dysvascular LLA) spent most of the day sitting (median = 77% [quartile 1 {Q1}-quartile 3 {Q3} = 67%-84%]), followed by standing (median = 16% [Q1-Q3 = 12%-27%]) and stepping (median = 6% [Q1-Q3 = 4%-9%]). One-quarter (median = 25% [Q1-Q3 = 16%-38%]) of sitting was accumulated in bouts of >90 minutes, and most standing and stepping was accrued in bouts of 11%-20%]). Conclusion. Participants had high daily volumes of long durations of sitting. Further, these individuals accumulated most physical activity in bouts of Impact. High levels of sedentary behavior and physical inactivity patterns may place people with LLA at greater mortality risk relative to the general population. Interventions to minimize sedentary behaviors and increase physical activity are potential strategies for improving poor outcomes of physical therapy after LLA. Keywords: Amputation, Physical Activity, Sedentary Behavior, Chronic Health Conditions, Older Adult, Middle-Age, Introduction An estimated 1 million Americans were living with lower limb amputation (LLA) in 2005. (1) The majority of people living with LLA are 45 years or older. (1) The [...]

Published
2021
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19. Predictors of long‐term weight loss trajectories during a behavioral weight loss intervention: An exploratory analysis

Author

Ostendorf, Danielle M., primary, Blankenship, Jennifer M., additional, Grau, Laura, additional, Arbet, Jaron, additional, Mitchell, Nia S., additional, Creasy, Seth A., additional, Caldwell, Ann E., additional, Melanson, Edward L., additional, Phelan, Suzanne, additional, Bessesen, Daniel H., additional, and Catenacci, Victoria A., additional

Published
2021
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27. Interrupting prolonged sitting in type 2 diabetes: nocturnal persistence of improved glycaemic control

Author

Dempsey, Paddy C., primary, Blankenship, Jennifer M., additional, Larsen, Robyn N., additional, Sacre, Julian W., additional, Sethi, Parneet, additional, Straznicky, Nora E., additional, Cohen, Neale D., additional, Cerin, Ester, additional, Lambert, Gavin W., additional, Owen, Neville, additional, Kingwell, Bronwyn A., additional, and Dunstan, David W., additional

Published
2016
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31. Effects of Providing High-Fat versus High-Carbohydrate Meals on Daily and Postprandial Physical Activity and Glucose Patterns: a Randomised Controlled Trial.

Author

Parr, Evelyn B., Devlin, Brooke L., Callahan, Marcus J., Radford, Bridget E., Blankenship, Jennifer M., Dunstan, David W., and Hawley, John A.

Abstract

We determined the effects of altering meal timing and diet composition on temporal glucose homeostasis and physical activity measures. Eight sedentary, overweight/obese men (mean ± SD, age: 36 ± 4 years; BMI: 29.8 ± 1.8 kg/m2) completed two × 12-day (12-d) measurement periods, including a 7-d habitual period, and then 5 d of each diet (high-fat diet [HFD]: 67:15:18% fat:carbohydrate:protein versus high-carbohydrate diet [HCD]: 67:15:18% carbohydrate:fat:protein) of three meals/d at ±30 min of 0800 h, 1230 h, and 1800 h, in a randomised order with an 8-d washout. Energy intake (EI), the timing of meal consumption, blood glucose regulation (continuous glucose monitor system (CGMS)), and activity patterns (accelerometer and inclinometer) were assessed across each 12-d period. Meal provision did not alter the patterns of reduced physical activity, and increased sedentary behaviour following dinner, compared with following breakfast and lunch. The HCD increased peak (+1.6 mmol/L, p < 0.001), mean (+0.5 mmol/L, p = 0.001), and total area under the curve (+670 mmol/L/min, p = 0.001), as well as 3-h postprandial meal glucose concentrations (all p < 0.001) compared with the HFD. In overweight/obese males, the provision of meals did not alter physical activity patterns, but did affect glycaemic control. Greater emphasis on meal timing and composition is required in diet and/or behaviour intervention studies to ensure relevance to real-world behaviours. [ABSTRACT FROM AUTHOR]

Published
2018
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