Comparison of Plantar Pressure Distribution on the Dynamic Balance of Infants, Teenagers and Young Volleyball Players in the Stance Phase of Walking
The difference in the force distribution of plantar muscles in the landing stage in volleyball players is an important cause of lower limb injuries in the lack of balance control. The aim of this study was to compare the distribution of plantar pressure on the dynamic balance of infants, teenagers and young volleyball players in the stance phase of walking.
The current research was descriptive-cross-sectional. For this purpose, 64 healthy male volleyball players in 3 age groups were targeted in three groups; Infants (n=22), teenagers (n=24) and young people (n=18) were divided. The minimum amount of training per week was 3 days. A foot pressure device was used to determine the pressure distribution of the plantar muscles on the way back and forth. In order to compare between groups the level of foot contact and impulse in three parts of the front, middle, back of the right and left foot and the axis angle of the feet, correlated t-test and multivariate analysis of variance were used at the alpha level of 0.05.
The contact surface of the sole of the right foot in the middle part compared to the left foot in the group of infants increased significantly compared to the other two groups (P=0.038). But in other sections and groups, there was no significant difference in the right and left leg (P=0.051). The results of multivariate analysis of variance for the comparison of the contact surface (forefoot, midfoot, rearfoot) in the right foot between the three groups of infants, teenagers and young people showed a significant difference (P=0.023). Impulse in the front (P=0.030) and middle parts of the right leg (P=0.015) increased significantly compared to the left leg in the group of infants. But in the back part of the sole of the right foot (P=0.411). There was no significant difference between the three groups in the three sections mentioned in the left leg (P=0.050). There was no significant difference in the rotation axis angle of the plantar force between the right and left foot in any of the groups (P=0.050).
According to the possible results, the increase in the contact surface and impulse in the front, middle and sole of the right foot compared to the left foot and at the moment of landing and the settling phase in non-hall players is more than that of teenagers and young volleyball players, which is an effective factor in weakening balance control. dynamic and causing damage.
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