Wearing the F-Scan system did not affect the stance time but lead to an increase in stride frequency (P<0.05) and a decrease in stride length (P<0.05) and relative stride length (P<0.05). As speed increased, stance time decreased while stride frequency, stride length and relative stride length increased (all P<0.001).
As aid to compensating for this;
as walking cadence increases, pressure-time integrals and foot-to-floor contact durations
decrease, and peak plantar pressures increase.
Cavanaghs multivariate analysis of segmented plantar force distribution found correlation of peak pressures at heel contact to approach velocity which is likely determined by stride length.
I did a quick pubmed search for effects of clothing on kinematics, nothing seems to have been published on this, I wonder if effects of pants vs shorts would reveal similar change in kinematics?
ABSTRACT. Zhu H, Wertsch JJ, Harris GF, Alba HM.
Walking cadence effect on plantar pressures. Arch Phys Med
Objective: Prior studies have examined the effect of cadence
on ground reaction forces by use of a force plate. Force plate
studies generally analyze isolated steps and do not provide insight
into ongoing step-to-step variations or in-shoe plantar
pressures. The objective of this study was to evaluate the effect
of walking cadences on in-shoe plantar pressures over extended
periods of continuous walking.
Design: Nonrandomized control trial.
Patients or Other Participants: Volunteer sample of 8 ablebodied
Interventions: In-shoe plantar pressures were studied during
four minutes of continuous walking at controlled cadences of
70, 80, 90, 100, 110, and 120steps/rain. For each cadence more
than 200 steps were analyzed for each of the 8 subjects.
Main Outcome Measures: Pressure-time integrals, foot-tofloor
contact durations, and peak pressures at all 14 locations
were processed for each step. Changes were calculated compared
to values at 70steps/rain.
Results: With increasing cadence, mean pressure-time integrals
continuously decreased (45% at 120steps/min); mean footto-
floor contact durations continuously decreased (64% at
120steps/rain); and mean peak pressures increased (119% at
Conclusions: Our results show that as walking cadence increases,
pressure-time integrals and foot-to-floor contact durations
decrease, and peak plantar pressures increase. This is clinically
relevant to all kinetic gait studies because our results
suggest that normal values should be established for each cadence.
© 1995 by the American Congress of Rehabilitation Medicine
and the American Academy of Physical Medicine and Rehabilitation
T HE MEASUREMENT of plantar pressures is useful when