Interaction of Overweight and Pronated Foot on Ground Reaction Force Frequency Content During Running

Authors : Amirali Jafarnezhadgero, Ehsan Fakhri Mirzanag, Hamed Sheikhalizadeh, Hamed Parsa

Pages : 316-327

Doi:10.54141/psbd.1409700

View : 59 | Download : 65

Publication Date : 2024-08-28

Article Type : Research Paper

Abstract :Being overweight can influence the occurrence of pronated feet (PF). This research aimed to assess the interaction effect of overweight and PF along with sex on the frequency content of ground reaction forces (GRFs). 104 young male and female adults were allocated to four groups: normal body-mass-index/normal feet, normal body-mass-index/PF, excessive weight/normal feet, and excessive weight/PF. Subjects ran at constant speed over the walkway while an embedded force plate was located at the midpoint of the walkway. GRFs were recorded during 20 running trials. Findings demonstrated the significant main effect of “sex” (P<0.001; ɲ2 = 0.392) and “group” (P<0.001; ɲ2 = 0.264) and “sex-by-group interaction” (P<0.001; ɲ2 = 0.442) for an essential number of harmonic in the vertical direction. Overall, our results showed sex, body mass index, and foot type could possibly affect GRF frequency content while running. The paired-wise comparison demonstrated lower Ne in the vertical direction in the females than in the males. The paired-wise comparison demonstrated the greatest Ne in the vertical direction in the normal weight/normal foot group than the of other groups. These findings could be used for designing rehabilitation protocols (e.g., strength training) for individuals with overweight/obesity or PF and or both of them.
Keywords : Ground reaction force, Overweight, Pronated feet