Effect of treadmill walking on the stride interval dynamics of human gait

Chang, Matthew; Shaikh, Sameer; Chau, Tom

doi:10.1016/j.gaitpost.2009.06.017

Cited by 59 publications

(66 citation statements)

References 38 publications

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“…Furthermore, the ability to distinguish between and successfully implement visual cues is thought to improve with increasing age and walking experience, with greater automaticity of control gained with practice (Schmuckler and Gibson, 1989). To this end, while we found reduced α during UTW, largely due to the younger children studied, α was not affected in an adult population performing an analogous UTW task (Chang et al, 2009b). Therefore, unlike adults, children may not have been able to adapt to the static visual feedback during UTW due to their incomplete neuromaturation and more limited opportunity for locomotor practice in varying environments.…”

Section: Effect Of Unsupported Treadmill Walking On Persistencementioning

confidence: 54%

“…Based on current findings, it is been hypothesized that stride interval persistence largely originates supraspinally, with little dependence on peripheral influences (Chang et al, 2009b;Hausdorff et al, 1996;Hausdorff, 2007;Gates and Dingwell, 2007). Furthermore, in a recent review of gait dynamics, Hausdorff (2007) suggests that the optimal α may occur at a certain appropriate mid-range value, somewhere between perfect correlation (i.e., α = 1.0) and uncorrelated random noise (i.e., α = 0.5).…”

Section: Clinical Relevancementioning

confidence: 86%

“…From a rehabilitation perspective, an intervention that fails to strengthen or preserve the dynamics of typical locomotion would seem to oppose the natural neuromuscular rhythms of healthy human gait. To this end, while adult stride interval persistence is not significantly different between overground and hands-free treadmill walking (Chang et al, 2009b), the effect of treadmill walking on the gait dynamics of children is unknown. Considering the importance and widespread application of such a locomotor modality in many emerging paediatric rehabilitation techniques (Cherng et al, 2007;Angulo-Barroso et al, 2008;Mutlu et al, 2009), it is of critical value to study the implications of treadmill walking on developmental stride interval dynamics.…”

Section: Metronomic Versus Treadmill Walkingmentioning

confidence: 95%

“…For example, Jordan et al (2007) showed that α increases at walking speeds both faster and slower than preferred, and Delignieres and Torre (2009) demonstrated a change from persistent to anti-persistent behaviour when walking was paced to the constant beat of a metronome. Furthermore, while Frenkel-Toledo et al (2005) found stride interval persistence to decrease during handrail-supported treadmill walking compared to walking overground with a walker, Chang et al (2009b) found α to be significantly higher during handrail-supported treadmill walking compared to regular overground walking.…”

Section: Effect Of Pace-constrained Locomotionmentioning

confidence: 96%

“…Recently, Chang et al (2009b) suggested that the afferent influences of treadmill walking on the locomotor control system are distinctly different from those of metronomic walking, after treadmill walking was not found to significantly alter the stride interval persistence of healthy young adults. Nonetheless, it would be naive to assume that the same is true for children.…”

Section: Introductionmentioning

confidence: 99%

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The effect of treadmill walking on the stride interval dynamics of children

Fairley

Sejdić

Chau

2010

Human Movement Science

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The stride interval of typical human gait is correlated over thousands of strides. This statistical persistence diminishes with age, disease, and pace-constrained walking. Considering the widespread use of treadmills in rehabilitation and research, it is important to understand the effect of this speed-constrained locomotor modality on stride interval dynamics. To this end, and given that the dynamics of children have been largely unexplored, this study investigated the impact of treadmill walking, both with and without handrail use, on paediatric stride interval dynamics. An initial stationarity analysis of stride interval time series identified both non-stationary and stationary signals during all walking conditions. Subsequent scaling analysis revealed diminished stride interval persistence during unsupported treadmill walking compared to overground walking. Finally, while the correlation between stride interval dynamics and gross energy expenditure was investigated in an effort to elucidate the clinical meaning of persistence, no simple linear correlation was found.ii DedicationTo my grandmother, whose inspiration I will carry with me always.iii Acknowledgements A sincere thank-you to my supervisor, Dr. Tom Chau, whose patience, support and guidance has allowed me to navigate the world of research. I am continually amazed by your dedication to your students and work, and am grateful for the knowledge and training that you have provided me.To my committee members, Dr. Karl Zabjek and Dr. Brian Maki, thank you for your invaluable feedback and advice.To the members of the PRISM lab, I am truly appreciative of your insights, perspectives and friendship. A special thank-you to Brian Nhan, Jorge Torres, Sarah Power and Stefanie Blain, with whom I shared an office, for your considerable help, thoughtful comments, good humour, and fun. Many thanks also to: Ervin Sejdić, for your expertise and contribution; Ka Lun Tam, for your technical wizardry; and Matthew Chang, for the thought-provoking discussions.

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Section: Effect Of Unsupported Treadmill Walking On Persistencementioning

confidence: 54%

Section: Clinical Relevancementioning

confidence: 86%

Section: Metronomic Versus Treadmill Walkingmentioning

confidence: 95%

Section: Effect Of Pace-constrained Locomotionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

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The effect of treadmill walking on the stride interval dynamics of children

Fairley

Sejdić

Chau

2010

Human Movement Science

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Gait performance is not influenced by working memory when walking at a self-selected pace

Grubaugh

Rhea

2013

Exp Brain Res

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Gait performance exhibits patterns within the stride-to-stride variability that can be indexed using detrended fluctuation analysis (DFA). Previous work employing DFA has shown that gait patterns can be influenced by constraints, such as natural aging or disease, and they are informative regarding a person's functional ability. Many activities of daily living require concurrent performance in the cognitive and gait domains; specifically working memory is commonly engaged while walking, which is considered dual-tasking. It is unknown if taxing working memory while walking influences gait performance as assessed by DFA. This study used a dual-tasking paradigm to determine if performance decrements are observed in gait or working memory when performed concurrently. Healthy young participants (N = 16) performed a working memory task (automated operation span task) and a gait task (walking at a self-selected speed on a treadmill) in single- and dual-task conditions. A second dual-task condition (reading while walking) was included to control for visual attention, but also introduced a task that taxed working memory over the long term. All trials involving gait lasted at least 10 min. Performance in the working memory task was indexed using five dependent variables (absolute score, partial score, speed error, accuracy error, and math error), while gait performance was indexed by quantifying the mean, standard deviation, and DFA α of the stride interval time series. Two multivariate analyses of variance (one for gait and one for working memory) were used to examine performance in the single- and dual-task conditions. No differences were observed in any of the gait or working memory dependent variables as a function of task condition. The results suggest the locomotor system is adaptive enough to complete a working memory task without compromising gait performance when walking at a self-selected pace.

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Fractal Fluctuations in Human Walking: Comparison Between Auditory and Visually Guided Stepping

Terrier

2016

Ann Biomed Eng

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In human locomotion, sensorimotor synchronization of gait consists of the coordination of stepping with rhythmic auditory cues (auditory cueing, AC). AC changes the long-range correlations among consecutive strides (fractal dynamics) into anti-correlations. Visual cueing (VC) is the alignment of step lengths with marks on the floor. The effects of VC on the fluctuation structure of walking have not been investigated. Therefore, the objective was to compare the effects of AC and VC on the fluctuation pattern of basic spatiotemporal gait parameters. Thirty-six healthy individuals walked 3 × 500 strides on an instrumented treadmill with augmented reality capabilities. The conditions were no cueing (NC), AC, and VC. AC included an isochronous metronome. For VC, projected stepping stones were synchronized with the treadmill speed. Detrended fluctuation analysis assessed the correlation structure. The coefficient of variation (CV) was also assessed. The results showed that AC and VC similarly induced a strong anti-correlated pattern in the gait parameters. The CVs were similar between the NC and AC conditions but substantially higher in the VC condition. AC and VC probably mobilize similar motor control pathways and can be used alternatively in gait rehabilitation. However, the increased gait variability induced by VC should be considered.

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Effect of treadmill walking on the stride interval dynamics of human gait

Cited by 59 publications

References 38 publications

The effect of treadmill walking on the stride interval dynamics of children

The effect of treadmill walking on the stride interval dynamics of children

Gait performance is not influenced by working memory when walking at a self-selected pace

Fractal Fluctuations in Human Walking: Comparison Between Auditory and Visually Guided Stepping

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