Hormozgan Medical Journal
مجله پزشکی هرمزگان
Hormozgan Medical Journal
Medical Sciences
http://hmj.hums.ac.ir
1
admin
2423-3528
2423-3536
doi
en
jalali
1394
11
1
gregorian
2016
2
1
19
6
online
1
fulltext
en
Investigating the relationship between frequency components of ground reaction force and sport shoe insoles comfort during stance phase of running
Investigating the relationship between frequency components of ground reaction force and sport shoe insoles comfort during stance phase of running
عمومى
General
پژوهشي
Research
Introduction: Shoe insoles are widely recommended to increase sport shoes comfort during running. However, relationship between ground reaction force frequency and perceived comfort is still unclear. The purpose of this study was to evaluate the relationship between ground reaction force frequency changes and perceived comfort during stance phase of running. Methods: 30 female students (mean age of 22±1.85 year, height of 162±4.71cm and weight of 56±5.59 kg) were selected. Subjects were asked to run heel- toe in a control condition (only shoes) and three different insole conditions (soft, semi rigid, rigid). To assess perceived comfort, a questionnaire was completed by the subjects in four different insoles conditions. Vertical and anterior - posterior (AP) components of ground reaction force were evaluated in frequency domain using fast furrier transformation. Pearson’s correlation coefficients was used to test relationship between the force frequency changes and perceived comfort (P<0.05). Results: Findings showed that there was a significant negative relationship between perceived comfort and 99.5% frequency of vertical and AP ground reaction force (r=- 0.278, r=-0.239 respectively), and median frequency of AP ground reaction force (r=- 0.229). Conclusion: Perceived comfort can be explained about 6% of variability in the 99.5% frequency power of vertical and AP ground reaction force and median frequency of AP ground reaction force.
Introduction: Shoe insoles are widely recommended to increase sport shoes comfort during running. However, relationship between ground reaction force frequency and perceived comfort is still unclear. The purpose of this study was to evaluate the relationship between ground reaction force frequency changes and perceived comfort during stance phase of running. Methods: 30 female students (mean age of 22±1.85 year, height of 162±4.71cm and weight of 56±5.59 kg) were selected. Subjects were asked to run heel- toe in a control condition (only shoes) and three different insole conditions (soft, semi rigid, rigid). To assess perceived comfort, a questionnaire was completed by the subjects in four different insoles conditions. Vertical and anterior - posterior (AP) components of ground reaction force were evaluated in frequency domain using fast furrier transformation. Pearson’s correlation coefficients was used to test relationship between the force frequency changes and perceived comfort (P<0.05). Results: Findings showed that there was a significant negative relationship between perceived comfort and 99.5% frequency of vertical and AP ground reaction force (r=- 0.278, r=-0.239 respectively), and median frequency of AP ground reaction force (r=- 0.229). Conclusion: Perceived comfort can be explained about 6% of variability in the 99.5% frequency power of vertical and AP ground reaction force and median frequency of AP ground reaction force.
Frequency,Comfort,Ground Reaction Force,
Frequency,Comfort,Ground Reaction Force,
388
397
http://hmj.hums.ac.ir/browse.php?a_code=A-10-2-1435&slc_lang=en&sid=1
Fereshteh
Habibi Tirtashi
Fereshteh
Habibi Tirtashi
No
Mansour
Eslami
Mansour
Eslami
No