Ensink, M. (Mirte) (2016) The effect of implicit, explicit and video instructions during a triple cross over hop test on transfer. thesis, Human Movement Sciences.
Full text available on request.Abstract
Background; Motor learning with implicit instructions (with an external focus (EF)) or with video (VI) instructions have been shown to result in better motor performance compared with learning with explicit instructions (with an internal focus (IF)). It would be prudent to use implicit and video learning in training sessions and in anterior cruciate ligament (ACL) injury prevention programs. It seems that the use of implicit and video learning can solve the lack of transfer of conscious, desirable movement strategies rehearsed during training to automatic movements necessary for games and unanticipated circumstances. Purpose; The purpose of this study was to investigate the effects of implicit, explicit and video instructions during a ‘triple cross over hop test’ (TCOH) on transfer, measured with an unexpected change of direction. Hereby the hypothesis is that the athletes, regardless of sex and sport, who receive VI or EF instructions, reduce knee joint loading with a better transfer compared to the athletes who receive IF instructions or only general instructions (Ctrl). Methods; Thirty-two healthy recreational soccer, handball, basketball and korfball players performed the TCOH test (pre, training and post test). One week later they performed the transfer test consisting of an unexpected change of direction. Hereby the athletes were randomly divided over four groups; IF, EF, VI and Ctrl. Group specific instructions were provided during training (Tr1 and Tr2). The vertical ground reaction force and the kinematics and kinetics of the lower extremity at the peak knee varus/valgus moment, were collected. Results; The results of this study showed that the often demonstrated effects of implicit, explicit and video instructions on motor learning are not applicable in every situation. Hereby is illustrated that task difficulty influences motor learning. It seems that a more easy task than a TCOH is necessary to achieve some motor learning and transfer effects (with implicit, explicit or video instructions). Next to that, additional evidence is found for the fact that fatigue increases the knee load, which results in higher ACL injury risks. Keywords: ACL injury prevention, Instruction type, Attentional focus, Motor learning, Jump landing, Technique
| Item Type: | Thesis (UNSPECIFIED) |
|---|---|
| Supervisor name: | Otten, B. and Benjaminse, A. |
| Faculty: | Medical Sciences |
| Date Deposited: | 22 Apr 2022 10:06 |
| Last Modified: | 22 Apr 2022 10:06 |
| URI: | https://umcg.studenttheses.ub.rug.nl/id/eprint/3135 |
Actions (login required)
 |
View Item |