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Reliability of spatiotemporal and kinetic gait parameters determined by a new instrumented treadmill system.


ABSTRACT: Despite the emerging use of treadmills integrated with pressure platforms as outcome tools in both clinical and research settings, published evidence regarding the measurement properties of these new systems is limited. This study evaluated the within- and between-day repeatability of spatial, temporal and vertical ground reaction force parameters measured by a treadmill system instrumented with a capacitance-based pressure platform.Thirty three healthy adults (mean age, 21.5?±?2.8 years; height, 168.4?±?9.9 cm; and mass, 67.8?±?18.6 kg), walked barefoot on a treadmill system (FDM-THM-S, Zebris Medical GmbH) on three separate occasions. For each testing session, participants set their preferred pace but were blinded to treadmill speed. Spatial (foot rotation, step width, stride and step length), temporal (stride and step times, duration of stance, swing and single and double support) and peak vertical ground reaction force variables were collected over a 30-second capture period, equating to an average of 52?±?5 steps of steady-state walking. Testing was repeated one week following the initial trial and again, for a third time, 20 minutes later. Repeated measures ANOVAs within a generalized linear modelling framework were used to assess between-session differences in gait parameters. Agreement between gait parameters measured within the same day (session 2 and 3) and between days (session 1 and 2; 1 and 3) were evaluated using the 95% repeatability coefficient.There were statistically significant differences in the majority (14/16) of temporal, spatial and kinetic gait parameters over the three test sessions (P?

SUBMITTER: Reed LF 

PROVIDER: S-EPMC3766030 | biostudies-other | 2013 Aug

REPOSITORIES: biostudies-other

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Reliability of spatiotemporal and kinetic gait parameters determined by a new instrumented treadmill system.

Reed Lloyd F LF   Urry Stephen R SR   Wearing Scott C SC  

BMC musculoskeletal disorders 20130821


<h4>Background</h4>Despite the emerging use of treadmills integrated with pressure platforms as outcome tools in both clinical and research settings, published evidence regarding the measurement properties of these new systems is limited. This study evaluated the within- and between-day repeatability of spatial, temporal and vertical ground reaction force parameters measured by a treadmill system instrumented with a capacitance-based pressure platform.<h4>Methods</h4>Thirty three healthy adults  ...[more]

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