Presentation Type

Poster

Faculty Mentor’s Full Name

Dr. James Laskin

Faculty Mentor’s Department

School of Physical Therapy

Abstract

Accelerometers are movement devices that have been proven to be great tools to assess physical activity levels, determine intensity of activities, and measure energy expenditure in the majority of the population. However, these devices may not accurately assess energy expenditure in individuals with altered gait patterns. In order to better understand this discrepancy we are measuring energy costs of low to vigorous Physical Activity (PA) in individuals with altered gait while monitoring omni-directional ambulatory movement using a Actical® Accelerometer (Philips Respironics, Bend, OR) monitoring system to develop a generalizable, useful equation that can better predict energy expenditure. Participants will be assessed and categorized through the 10-meter Walk Test, Timed Up and Go Test, Four-stage Balance Test, 30 second Sit-to-Stand Test, and the Functional Gait Assessment. The participants actual energy expenditure will be measured with an Oxycon Mobile Metabolic System through the following tests; Resting Metabolic Rate (RMR), five minutes of self paced walking, five minutes of brisk-paced treadmill walking, and the Six-Minute-Walk Test. We will then look for correlations between the established categories of participants and their actual energy expenditure which will provide a more accurate equation for estimating energy expenditure with the Actical® Accelerometer. We will be combining this new data with data previously collected in Actical® Accelerometer validity research to have a larger data set to analyze. The intention of this study is to offer a more suitable adapted energy expenditure prediction equation, which will benefit those with physical disabilities in the assessment of physical function in the future.

Category

Health and Medical Science

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Apr 17th, 11:00 AM Apr 17th, 12:00 PM

Assessing the Predictive Validity of Actical® Accelerometers for Individuals with Impaired Gait

UC South Ballroom

Accelerometers are movement devices that have been proven to be great tools to assess physical activity levels, determine intensity of activities, and measure energy expenditure in the majority of the population. However, these devices may not accurately assess energy expenditure in individuals with altered gait patterns. In order to better understand this discrepancy we are measuring energy costs of low to vigorous Physical Activity (PA) in individuals with altered gait while monitoring omni-directional ambulatory movement using a Actical® Accelerometer (Philips Respironics, Bend, OR) monitoring system to develop a generalizable, useful equation that can better predict energy expenditure. Participants will be assessed and categorized through the 10-meter Walk Test, Timed Up and Go Test, Four-stage Balance Test, 30 second Sit-to-Stand Test, and the Functional Gait Assessment. The participants actual energy expenditure will be measured with an Oxycon Mobile Metabolic System through the following tests; Resting Metabolic Rate (RMR), five minutes of self paced walking, five minutes of brisk-paced treadmill walking, and the Six-Minute-Walk Test. We will then look for correlations between the established categories of participants and their actual energy expenditure which will provide a more accurate equation for estimating energy expenditure with the Actical® Accelerometer. We will be combining this new data with data previously collected in Actical® Accelerometer validity research to have a larger data set to analyze. The intention of this study is to offer a more suitable adapted energy expenditure prediction equation, which will benefit those with physical disabilities in the assessment of physical function in the future.