Purtsi Jarno, Vihko Veikko, Kankaanpää Anna, Havas Eino
LIKES Research Center, Jyväskylä, Finland.
J Aging Phys Act. 2012 Jul;20(3):345-62. doi: 10.1123/japa.20.3.345. Epub 2011 Dec 20.
This study describes the motor-learning process of older individuals during the course of a training intervention on a motor-driven eccentric bicycle ergometer. Seventeen women and 16 men (64 ± 6 yr) took part in a 10-wk training program. Uniformity of force production and consistency of timing were used to describe their motor performance. The results suggested that participants improved the coefficient of variation of peak force during the intervention (measured at the 2nd, 4th, 6th, 8th, 10th, 12th, and the 18th training sessions). They reached a fairly constant level of motor performance around the 12th training session (5 wk). Age and sex affected improvements in the early phases of the learning process to an extent, but the differences diminished by the end of the intervention. These results suggest that the force control of continuous eccentric muscle contractions improves as a result of training in older adults.
本研究描述了老年人在电动偏心自行车测力计训练干预过程中的运动学习过程。17名女性和16名男性（64±6岁）参与了一项为期10周的训练计划。用力的均匀性和时间的一致性被用来描述他们的运动表现。结果表明，参与者在干预期间（在第2、4、6、8、10、12和第18次训练课测量）改善了峰值力的变异系数。他们在第12次训练课（5周）左右达到了相当稳定的运动表现水平。年龄和性别在学习过程的早期阶段对改善有一定影响，但在干预结束时差异减小。这些结果表明，老年人通过训练可改善连续偏心肌肉收缩的力量控制。
