Abstract

Inter-segmental coordination patterns and mechanical energy transfer were compared between vertical jumping tasks which possess different countermovement characteristics. Thirteen participants completed squat (SJ), countermovement (CMJ) and drop (DVJ) vertical jumps. Inter-segmental coordination patterns became more out-of-phase with increases in countermovement velocity (DVJ > CMJ > SJ), at the ankle, hip and lumbar spine (all p < 0.05), but not at the knee. With countermovements, more inter-segmental energy transfer occurred at all joints (p < 0.05), but increasing the countermovement velocity (DVJ compared to CMJ) did not always increase energy transfer (p < 0.001 for the hip and knee, p > 0.05 for the ankle and lumbar spine). The relationship between mechanical energy transfer and inter-segmental coordination patterns during vertical jumping is not straightforward since the responses to these varying countermovement demands were not consistent across all joints.

摘要

比较了具有不同反向运动特性的垂直跳跃任务之间的节段间协调模式和机械能传递。13 名参与者完成了深蹲 (SJ)、反向运动 (CMJ) 和垂直跳跃 (DVJ)。随着反向运动速度的增加（DVJ > CMJ > SJ），在脚踝、臀部和腰椎（所有p  < 0.05），但在膝盖处，节间协调模式变得更加异相。随着 反向运动，更多的节间能量转移发生在所有关节 ( p < 0.05)，但增加反向运动速度（DVJ 与 CMJ 相比）并不总是增加能量转移（ 髋关节和膝关节p < 0.001，p > 0.05 为脚踝和腰椎）。垂直跳跃过程中机械能传递与节段间协调模式之间的关系并不简单，因为对这些不同的反向运动需求的响应在所有关节中并不一致。