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Biomedical subjects

K G Hall

Publications and source records attributed to K G Hall.

2 recordsLinked to original sources

Motor skill acquisition strategies for rehabilitation of low back pain.

Evidence supporting the early use of exercise for the treatment of low back pain continues to grow. We must keep in mind, however, that motor skill learning and exercise are not synonymous. If rehabilitation goals are limited to the improvement of physical parameters (ie., strength, flexibility, endurance), the opportunity to help patients improve the performance of functional activities will be missed. The motor learning literature suggests several strategies for facilitating the acquisition of a motor skill: transfer-appropriate processing, the contextual interference effect, and repetitive self-evaluation. These techniques will cognitively challenge patients, helping them gain skills more quickly and retain them longer. By incorporating these methods into the rehabilitation program, patients will better transfer what they have learned from the rehabilitation environment to their everyday functional activities.

Cognition Disorders↗

Contextual interference effects with skilled baseball players.

The learning benefits of contextual interference have been frequently demonstrated in different settings using novice learners. The purpose of the present study was to test such effects with skilled athletic performers. Scheduling differences for biweekly additional ("extra") batting-practice sessions of a collegiate baseball team were examined. 30 players (ns = 10) were blocked on skill and then randomly assigned to one of three groups. The random and blocked groups received 2 additional batting-practice sessions each week for 6 wk. (12 sessions), while the control group received no additional practice. The extra sessions consisted of 45 pitches, 15 fastballs, 15 curveballs, and 15 change-up pitches. The random group received these pitches in a random order, while the blocked group received all 15 of one type, then 15 of the next type, and finally 15 of the last type of pitch in a blocked fashion. All subjects received a pretest of 45 randomly presented pitches of the three varieties. After 6 wk. of extra batting practice, all subjects received two transfer tests, each of 45 trials; one was presented randomly and one blocked. The transfer tests were counterbalanced across subjects. Pretest analysis showed no significant differences among groups. On both the random and blocked transfer tests, however, the random group performed with reliably higher scores than the blocked group, who performed better than the control group. When comparing the pretest to the random transfer test, the random group improved 56.7%, the blocked group 24.8%, and the control group only 6.2%.(ABSTRACT TRUNCATED AT 250 WORDS)

Adolescent↗