نوع مقاله : مقاله پژوهشی
نویسندگان
1 گروه علوم رفتاری و شناختی ورزشی دانشکده علوم ورزشی و تندرستی، دانشگاه تهران، تهران، ایران.
2 گروه بیومکانیک ورزشی، دانشکده علوم ورزش و بهداشت، دانشگاه تهران، تهران، ایران.
3 گروه رفتار حرکتی، دانشکده علوم ورزشی، دانشگاه الزهرا، تهران، ایران.
چکیده
کلیدواژه‌ها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Background and Aims The nonlinear training method provides a theoretical framework for pedagogical principles that can be used to estimate nonlinear changes in motor learning. The present study aimed to compare the effects of linear and nonlinear training on the improvement and maintenance of postural control indices in older women.
Methods The present study was quasi-experimental with a pretest-posttest and follow-up design. Forty-five older women aged 60-75 were randomly divided into nonlinear training, linear training, and control. Subjects in the experimental groups received training for four weeks, four 30-minute sessions per week. During this time, the control group only performed their usual daily activities. One day before and after the intervention and one week later, the subjects performed a static balance task on a force plate.
Results The results showed that the scores for anterior-posterior displacement, lateral displacement, and speed in the linear and nonlinear training groups were significantly reduced in the posttest and follow-up phases compared with the pretest (P<0.0005). So, postural oscillations were reduced, and static balance improved in both groups, but no significant difference was found between the above scores in the posttest and retention phases (P<0.0005). These results indicate that the improvement in static balance is sustained in both the linear and nonlinear training groups. The nonlinear training stimulation group also had significantly fewer postural oscillations than the linear training and control groups at the posttest and retention phases (P<0.0005).
Conclusion The flexible, adaptable, and comprehensive nature of nonlinear training, compared to the repetitive and predictable structure of linear training, makes it more effective in training balance in older people.
کلیدواژه‌ها [English]
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