Erin Albaum1,2, Emily Quinn1,2, Saba Sedaghatkish1,2, Parminder Singh1,2, Amber Watkins1,2, Kristin Musselman1,2, Josh Williams3,4. 1. Department of Physical Therapy, University of Toronto, Toronto, ON, Canada. 2. Toronto Rehabilitation Institute, University Health Network, Toronto, ON, Canada. 3. Department of Physical Therapy, University of Toronto, Toronto, ON, Canada. josh.williams@utoronto.ca. 4. Toronto Rehabilitation Institute, University Health Network, Toronto, ON, Canada. josh.williams@utoronto.ca.
Abstract
STUDY DESIGN: Cross-sectional. OBJECTIVES: (1) Assess the accuracy of the Actigraph wGT3x-BT accelerometer to count steps taken by inpatients with incomplete spinal cord injury (iSCI) in physical therapy (PT) sessions and self-directed activities, and (2) compare the number of steps/min taken in PT sessions to that in self-directed activities during inpatient rehabilitation. SETTING: Inpatient spinal cord injury rehabilitation. METHODS: Seventeen individuals with subacute motor iSCI were observed for up to 45-min of both PT and self-directed activities, during which steps were simultaneously tracked by the Actigraph wGT3x-BT and a researcher using a hand tally counter. Accuracy was evaluated with an intraclass correlation coefficient (ICC) for the entire PT session and self-directed activities, as well as for periods of walking. RESULTS: There was excellent agreement between the Actigraph wGT3x-BT and manually counted steps for entire PT sessions (ICC = 0.86) and walking periods (PT walking, ICC = 0.99; self-directed walking, ICC = 0.99). There was poor agreement for entire self-directed sessions (ICC = 0.15). Visual analysis of Bland-Altman plots supported these findings. Participants took more steps/min in PT sessions compared to self-directed activities (p = 0.023). CONCLUSION: The Actigraph wGT3x-BT accurately counts steps during PT sessions and walking periods in individuals with subacute motor iSCI. Clinically, this may enable physical therapists to track walking repetitions during inpatient rehabilitation more effortlessly.
STUDY DESIGN: Cross-sectional. OBJECTIVES: (1) Assess the accuracy of the Actigraph wGT3x-BT accelerometer to count steps taken by inpatients with incomplete spinal cord injury (iSCI) in physical therapy (PT) sessions and self-directed activities, and (2) compare the number of steps/min taken in PT sessions to that in self-directed activities during inpatient rehabilitation. SETTING: Inpatient spinal cord injury rehabilitation. METHODS: Seventeen individuals with subacute motor iSCI were observed for up to 45-min of both PT and self-directed activities, during which steps were simultaneously tracked by the Actigraph wGT3x-BT and a researcher using a hand tally counter. Accuracy was evaluated with an intraclass correlation coefficient (ICC) for the entire PT session and self-directed activities, as well as for periods of walking. RESULTS: There was excellent agreement between the Actigraph wGT3x-BT and manually counted steps for entire PT sessions (ICC = 0.86) and walking periods (PT walking, ICC = 0.99; self-directed walking, ICC = 0.99). There was poor agreement for entire self-directed sessions (ICC = 0.15). Visual analysis of Bland-Altman plots supported these findings. Participants took more steps/min in PT sessions compared to self-directed activities (p = 0.023). CONCLUSION: The Actigraph wGT3x-BT accurately counts steps during PT sessions and walking periods in individuals with subacute motor iSCI. Clinically, this may enable physical therapists to track walking repetitions during inpatient rehabilitation more effortlessly.
Authors: Stephanie K Rigot; Michael L Boninger; Dan Ding; Gina McKernan; Edelle C Field-Fote; Jeanne Hoffman; Rachel Hibbs; Lynn A Worobey Journal: Arch Phys Med Rehabil Date: 2021-04-08 Impact factor: 3.966
Authors: Marie-Louise K Mikkelsen; Gabriele Berg-Beckhoff; Peder Frederiksen; Graham Horgan; Ruairi O'Driscoll; António L Palmeira; Sarah E Scott; James Stubbs; Berit L Heitmann; Sofus C Larsen Journal: PLoS One Date: 2020-06-11 Impact factor: 3.240