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Technol Health Care ; 24(6): 843-852, 2016 Nov 14.
Article in English | MEDLINE | ID: mdl-27392831

ABSTRACT

BACKGROUND: The wireless gait assessment tool (Wi-GAT) measures have been shown to have good to excellent concurrent validity with preferred walking speeds, however, the validity of the Wi-GAT measures at slow and fast walking speeds is unknown. OBJECTIVE: To establish validity of the Wi-GAT spatio-temporal gait measures at slow, fast, and preferred walking speeds. METHODS: Twenty two healthy adult volunteers, with a mean age of 25.7 (± 5.3) participated in this study. The spatio-temporal gait variables of each participant were concurrently recorded using the GAITrite and the Wi-GAT system, while the participants performed 3 trials for each walking speed in a randomized order. Intraclass correlation analyses were performed to establish the agreement between the measures recorded by the GAITrite and Wi-GAT systems. RESULTS: Walking speed measured both by the Wi-GAT and the GAITrite systems showed excellent agreement for preferred (ICC = 0.979 p< 0.001), slow (ICC = 0.989 p< 0.001) and fast (ICC = 0.967 p< 0.001) walking speeds. Most gait parameters recorded at slow walking speed showed good (ICC > 0.70) to excellent (ICC > 0.85) agreement. CONCLUSIONS: Gait parameters recorded by the Wi-GAT system showed fair to excellent validity for preferred and slow walking speeds.


Subject(s)
Gait/physiology , Monitoring, Physiologic/instrumentation , Monitoring, Physiologic/methods , Physical Therapy Modalities/instrumentation , Walking/physiology , Adult , Female , Humans , Male , Michigan , Middle Aged , Reproducibility of Results , Spatio-Temporal Analysis , Wireless Technology , Young Adult
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