Authors:
Igor Gruic
;
Karlo Cebovic
;
Josipa Radas
;
Filip Bolcevic
and
Vladimir Medved
Affiliation:
Faculty of Kinesiology and University of Zagreb, Croatia
Keyword(s):
Pedobarography, Gait, PMD, Pressure Acquisition Protocol, Data Processing, Biomechanics.
Related
Ontology
Subjects/Areas/Topics:
Gait and Posture
;
Signal Processing and Motor Behavior
;
Sport Science Research and Technology
Abstract:
Backgrounds: Main objective was to evaluate methods for assessment of pedobarographic features of gait
using FDM1.5 pressure measuring device (PMD) - within complete gait analysis, with regard to device,
protocol&data analysis, specifically to basic morphology and certain distinctive characteristics. Methods:
Protocol was standardized for descriptive&inferential statistical methods (63 quantitative variables).
Participants characteristics (n=22; 13 male&9 female): age 14-35 y.o., average 172,56cm body height,
average 73.11kg body mass (19.47 BMI), with minimum of 5 years of regular sport&recreational activities.
Results: Protocol output was consistent for repeated measurement of an individual. Tested differences
between genders, before&after ‘partialization’ of results (excluded influence of longitudinal
dimensionality), in both cases reveal significance in: Stride width (t_GSW=4.15), Step time_L
(t_TSTL=2.88), Step time_R (t_TSTR=3.59), bilateral asymmetry in Step time (t_TST_D=3.32
), Cadence
(t_TC=-3.44) on p<0.01 level, and Ant/Post position (t_BAP=2.33), bilateral asymmetry in Time to change
heel to forefoot(t_LTP_D=2.26), Time maximum force Midfoot_D % of stance time (t_TMAXM=2.33), and
bilateral asymmetry in Contact time Heel (t_CH_D=2.33), on p<0.05 level. Differences in
barefoot/footwear gait were specially expressed in variable MAXPH (t= -8.84, p<0.05). Conclusions:
Statistical tools, such as partializations of the results by specific characteristic which tend to increase
heterogeneity, may standardize&improve the power of the protocol and method.
(More)