Biomechanical studies of landing motion on a spring surface
2016 Volume 23 Pages 11-19
Details
2016 Volume 23 Pages 11-19
A spring surface is deformed by the magnitude of the added force, therefore a spring surface is unstable compared to a rigid surface such as solid ground. In order to stabilize a body after landing on a spring surface, it is necessary to move in correspondence with the deformation of the surface. In this study, we examined the role of the lower limb joints in a drop-landing motion on a spring surface.
The following facts were revealed from the study : (1) In the Absorb period, the hip and knee joints are buffered by moving more than the ankle joints according to the change in height of the spring surface. (2) In the Stabilize period, the ankle joints moved according to the change in height of the spring surface ; moreover, the ankle joints moved in response to the vibration of the spring surface.
The roles of the hip and knee joints were different from those of the ankle joints for cushioning and stability. In landing on a spring surface, it was suggested that a specific landing motion strategy was used─unlike that on a solid surface.
