Abstract des Autors

This study identified two different patterns of vertical ground reaction force curves in rope jumping and quantified higher ground reaction force patterns in one-leg rope jumping compared to two-leg rope jumping. Bailey et al. (1996) recommended that children incorporate a variety of daily activities of short duration that impose high strain rates to optimize bone mineral acquisition. Rope jumping is a physiologically demanding activity that cannot be maintained for extended periods of time, yet it imposes loading rates similar to those observed for children running and landing from vertical jumps. The results of this study suggest that including rope jumping in a fifth-grade physical education program is warranted to provide an alternative activity imposing an impact load an the lower extremity. Aus dem Text