Running-style modulation: Effects of stance-time and flight-time instructions on duty factor and cadence

Nijs, Anouk; Roerdink, Melvyn; Beek, Peter J.

doi:10.1016/j.gaitpost.2022.10.002

Cited by 5 publications

(2 citation statements)

References 29 publications

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“…For the duty factor, instructions to increase and decrease stance time led to changes in the targeted duty factor, but also to changes in speed and cadence. Compared to another treadmill study [19], in which duty-factor changes of about 10% relative to baseline were found (i.e. a difference between instructions of around 20%), the instructions were considerably less effective, with differences between duty-factor instructions of around 5%.…”

Section: Plos Onecontrasting

confidence: 66%

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Exploring running styles in the field through cadence and duty factor modulation

Nijs,

Roerdink,

Beek

2023

PLoS ONE

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According to the dual-axis model, running styles can be defined by cadence and duty factor, variables that have been associated with running performance, economy and injury risk. To guide runners in exploring different running styles, effective instructions to modulate cadence and duty factor are needed. Such instructions have been established for treadmill running, but not for overground running, during which speed can be varied. In this study, five participants completed eight field training sessions over a 4-week training period with acoustic instructions to modulate cadence, duty factor, and, in combination, running style. Instructions were provided via audio files. Running data were collected with sports watches. Participants’ experiences with guided-exploration training were evaluated with the user experience questionnaire. Data analysis revealed acoustic pacing and verbal instructions to be effective in respectively modulating cadence and duty factor, albeit with co-varying effects on speed and the non-targeted variable (i.e. duty factor or cadence). Combining acoustic pacing and verbal instructions mitigated these co-varying effects considerably, allowing for running-style modulations in intended directions (particularly towards the styles with increased cadence and increased duty factor). User experience of this form of guided-exploration training was overall positive, but could be improved in terms of autonomy (dependability). In conclusion, combining acoustic pacing and verbal instructions for running-style modulation is effective in overground running.

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Section: Plos Onecontrasting

confidence: 66%

“…a treadmill [19] in view of the possibility to adapt the speed while running overground. Our results confirmed the expectation for acoustic pacing, as cadence did indeed increase with increasing pacing frequencies.…”

Section: Plos Onementioning

confidence: 99%