Phansa Amornmongkol. Effects of different running shoe soles on vertical ground reaction force in Thai female recreational runners. Master's Degree(Sports Science). Mahidol University. : Mahidol University, 2008.
Effects of different running shoe soles on vertical ground reaction force in Thai female recreational runners
Abstract:
The objective of this study was to investigate the effects of different running
shoe soles on peak vertical ground reaction force. The subjects participated in this
study were female volunteers who performed recreational running as a regular
exercise, ages 18-23. The subjects were divided into two groups: 10 subjects had
normal arch of foot and other the 10 subjects had flexible flatfeet. Both groups ran in
three different conditions, barefoot, running with normal running shoes, and running
with pronation control running shoes. The speed of the running was 3.5 ± 5% m/s.
Peak vertical ground reaction force, stance time, and time to peak vertical ground
reaction force from each condition were calculated
The results showed no significant difference in peak vertical ground reaction
force in each running condition for both normal arch of foot and flexible flatfoot
subjects. There was no significant difference in peak vertical ground reaction force
in the normal arch of foot subjects as compared to flexible flatfoot subjects. There
was no significant difference in stance time both within and between groups. Time to
peak vertical ground reaction force in normal arch of foot during running in
pronation control running shoes was significantly greater than barefoot running.
However, there was no significant difference in time to peak vertical ground reaction
force among different running conditions in flexible flatfoot. The results also showed
no significant different in time to peak vertical ground reaction force in normal arch
of foot subjects as compared to flexible flatfoot subjects.
For future study, it would be of interest to investigate muscle activity during
running by using electromyography recording in different running shoe conditions
both in normal arch of foot and flexible flatfoot subjects.