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Advisor(s)
Abstract(s)
This study analyzed the influence of different speeds on ground reaction force’s (GRF),
impulses and mean vertical force during gait of people submitted to occasional overload
(backpack). A force plate was used to record the GRF data of 60 young adult subjects
walking in two different cadences: 69 steps/min (slow gait) and 120 steps/min (fast gait).
During the slow gait, the impact and propulsive impulses of vertical GRF, propulsive
impulse of anterior-posterior GRF, impulse of medial-lateral GRF and duration of stance
phase were larger than during the fast gait; the mean vertical force was the only variable
that showed larger values during fast gait. Therefore, slow gait may present a larger
possibility of blister development and gait unbalance, while the fast gait, even presenting
a small impulse, seems to be more harmful to the musculoskeletal system.
Description
Keywords
Backpack Overload Ground reaction force Impulse
Citation
Publisher
Portuguese Journal of Sports Sciences