Related Experiment Videos
Knee position error detection in closed and open kinetic chain tasks during concurrent cognitive distraction
R A Taylor1, P H Marshall, R D Dunlap
1Department of Psychology, Texas Tech University, Lubbock 79409-2051, USA.
The Journal of Orthopaedic and Sports Physical Therapy
|August 12, 1998
Summary
Cognitive distraction significantly impairs motor task performance, with longer movements yielding better accuracy. This study explored differences in closed and open kinetic chain tasks under distraction.
Area of Science:
- Biomechanics
- Motor Control
- Cognitive Psychology
Background:
- Distinguishing between closed and open kinetic chain tasks is crucial for understanding motor response variations.
- Cognitive distraction's impact on motor performance requires further investigation.
Purpose of the Study:
- To assess performance differences in closed versus open kinetic chain tasks.
- To evaluate the effect of cognitive distraction on motor task performance.
- To determine if movement range influences performance accuracy.
Main Methods:
- Participants performed knee extension and flexion movements at various ranges of motion.
- Performance was assessed with and without a cognitive distraction task.
- Error detection served as the primary performance metric.
Main Results:
- Motor task performance was significantly worse under cognitive distraction.
- Longer movement ranges resulted in significantly more accurate performance.
- No significant performance differences were observed between closed and open kinetic chain movements.
Conclusions:
- Cognitive distraction negatively impacts motor control and task accuracy.
- Movement amplitude is a key factor in motor performance.
- The distinction between closed and open kinetic chain tasks may not be substantial in this context.