Baudouin A, Hawkins D
Human Performance Laboratory, University of California, Davis, California 95616, USA.
Br J Sports Med. 2002 Dec;36(6):396-402; discussion 402. doi: 10.1136/bjsm.36.6.396.
This review analyses rowing by linking the biological and mechanical systems that comprise the rowing system. Blade force was found to be the only propulsive force to counter the drag forces, consisting of both air drag and hydrodynamic drag, acting on the system. Vertical oscillations of the shell are shown to have minimal impact on system dynamics. The oar acts as the link between the force generated by the rower and the blade force and transmits this force to the rowing shell through the oarlock. Blade dynamics consist of both lift and drag mechanisms. The force on the oar handle is the result of a phased muscular activation of the rower. Oar handle force and movement are affected by the joint strength and torque-velocity characteristics of the rower. Maximising sustainable power requires a matching of the rigging setup and blade design to the rower's joint torque-velocity characteristics. Coordination and synchrony between rowers in a multiple rower shell affects overall system velocity. Force-time profiles should be better understood to identify specific components of a rower's biomechanics that can be modified to achieve greater force generation.
本综述通过将构成划船系统的生物系统和机械系统联系起来,对划船运动进行了分析。研究发现,桨叶力是抵消作用于该系统的空气阻力和水动力等阻力的唯一推进力。船艇的垂直振荡对系统动力学的影响极小。桨作为划船者产生的力与桨叶力之间的连接部件,并通过桨架将该力传递至划艇。桨叶动力学包括升力和阻力机制。桨柄上的力是划船者肌肉分阶段激活的结果。桨柄力和运动受划船者关节力量和扭矩 - 速度特性的影响。要实现可持续功率最大化,需要使索具设置和桨叶设计与划船者的关节扭矩 - 速度特性相匹配。多人划艇中划船者之间的协调与同步会影响整个系统的速度。为了确定划船者生物力学中可以进行改进以产生更大力量的特定组成部分,应更好地理解力 - 时间曲线。