Browsing by Subject "walking speed"

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    Changes in Walking Spatiotemporal Parameters After Therapeutic Yoga in People with Chronic Stroke
    (Iris, 2019) Miller, Kristine K.; Altenburger, Peter; Dierks, Tracy; Mason, Arianne; Van Puymbroeck, Marieke; Schmid, Arlene A.; Physical Therapy, School of Health and Rehabilitation Sciences
    Walking limitations after stroke can contribute to long-term functional impairments. Walking characteristics such as spatiotemporal step parameters may be associated with these persistent walking limitations. The purpose of this study was to investigate changes in specific spatiotemporal walking parameters such as: walking speed; step length; swing time; step parameter symmetry; and double support time in adults with stroke who were participating in a therapeutic yoga intervention. The therapeutic yoga intervention was offered as a post-rehabilitation wellness activity 2 times per week for 8 weeks and was led by a yoga therapist. Spatiotemporal walking data were collected using the GAITRite Walkway System on a sub sample (n=24) of participants in a randomized controlled trial testing the efficacy of therapeutic yoga for improving balance in adults with chronic stroke. These data demonstrated that therapeutic yoga may have a positive impact on some spatiotemporal walking characteristics such as comfortable walking speed, step length, and double support time, while other spatiotemporal walking characteristics did not change (step parameter symmetry) or change at a significant level (sustained walking speed). The clinical relevance of this study is that participation in therapeutic yoga as a post-rehabilitation wellness activity may have a positive impact on walking characteristics in adults with chronic stroke.
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    Tester and testing procedure influence clinically determined gait speed
    (Elsevier, 2019-10-01) Warden, Stuart J.; Kemp, Allie C.; Liu, Ziyue; Moe, Sharon M.; Physical Therapy, School of Health and Human Sciences
    Background: There is a clinical need to be able to reliably detect meaningful changes (0.1 to 0.2 m/s) in usual gait speed (UGS) considering reduced gait speed is associated with morbidity and mortality. Research question: What is the impact of tester on UGS assessment, and the influence of test repetition (trial 1 vs. 2), timing method (manual stopwatch vs. automated timing), and starting condition (stationary vs. dynamic start) on the ability to detect changes in UGS and fast gait speed (FGS)? Methods: UGS and FGS was assessed in 725 participants on a 8-m course with infrared timing gates positioned at 0, 2, 4 and 6 m. Testing was performed by one of 13 testers trained by a single researcher. Time to walk 4-m from a stationary start (i.e. from 0-m to 4-m) was measured manually using a stopwatch and automatically via the timing gates at 0-m and 4-m. Time taken to walk 4-m with a dynamic start was measured during the same trial by recording the time to walk between the timing gates at 2-m and 6-m (i.e. after 2-m acceleration). Results: Testers differed for UGS measured using manual vs. automated timing (p=0.02), with five and two testers recording slower and faster UGS using manual timing, respectively. 95% limits of agreement for trial 1 vs. 2, manual vs. automated timing, and dynamic vs. stationary start ranged from ±0.15 m/s to ±0.20 m/s, coinciding with the range for a clinically meaningful change. Limits of agreement for FGS were larger ranging from ±0.26 m/s to ±0.35 m/s. Significance: Repeat testing of UGS should performed by the same tester or using an automated timing method to control for tester effects. Test protocol should remain constant both between and within participants as protocol deviations may result in detection of an artificial clinically meaningful change.