Send the link below via email or IMCopy
Present to your audienceStart remote presentation
- Invited audience members will follow you as you navigate and present
- People invited to a presentation do not need a Prezi account
- This link expires 10 minutes after you close the presentation
- A maximum of 30 users can follow your presentation
- Learn more about this feature in our knowledge base article
Do you really want to delete this prezi?
Neither you, nor the coeditors you shared it with will be able to recover it again.
Make your likes visible on Facebook?
You can change this under Settings & Account at any time.
Skill Acquisition in Sport
Transcript of Skill Acquisition in Sport
Faculty of Kinesiology
University of New Brunswick Dynamical Systems in Human Movement Analysis Control: the magnitude of a variable related to the limb or limb segment movement (e.g. force, acceleration all kinetics, kinematics) Skill: The ability to modify control and coordination to achieve a desired outcome Coordination: The relationship between movements of limb segments
same limb (intra-limb coordination)
between two different limbs or limb segments (inter-limb) Summers, J. J. (1999). Skill acquisition: current perspectives and future directions. In , In Lidor, R. and Bar-Eli, M. (ed.), Sport psychology: linking theory and practice, Morgantown, W.Va., Fitness Information Technology, c1999, p.83-107 United States Handford, C., Davids, K., Bennett, S., & Button, C. (1997). Skill acquisition in sport: Some applications of an evolving practice ecology. Journal Of Sports Sciences, 15(6), 621-640 References Dynamical Systems Theory (DST) Newell, K. M., & Corcos, D. M. (1993). Issues in variability and motor control. In , In, Newell, K.M. and Corcos, D.M. (eds.), Variability and motor control, Champaign, Ill., Human Kinetics Publishers, c1993, p. 1-12 United State Kelso's bimanual experiment
independent variables are pattern of movement, frequency oscillation DST number of biomechanical degrees of freedom can be reduced by form coordinate structures at a critical frequency, leave previous pattern (180deg) and adopt another one (0deg) Summary Anson, G., Elliott, D., & Davids, K. (2005). Information Processing and Constraints-based Views of Skill Acquisition: Divergent or Complementary?. Motor Control, 9(3), 217 simultaneous and oscillatory movements dependent variable is relative phase: difference in fingers phase values from a common start frequency increased with metronome over trial at a critical frequency, antiphase pattern switched to inphase in phase pattern maintained with increasing frequency motor skill acquisition theories currently has 2 main: information processing and constraints driven
information processing: brain as a computer analogy, Fitts three stage model
constraints driven: self-organizaing systems, DST
at present, no direct relation with research in motor control and physical education
different aspects of both approaches could be used in practice QUESTIONS/DISCUSSION ? Glazier, P. S., & Davids, K. (2009). Constraints on the Complete Optimization of Human Motion. Sports Medicine, 39(1), 15-28. control parameter (CP): external variable can be varied (e.g, frequency of oscillation) order parameter (OP): dependent on the CP (e.g, relative phase) Find a function of OP that works then modulate the CP RP=0deg and RP=180deg are attractor states Southard, D. (1998). Mass and velocity: Control parameters for throwing patterns. Research Quarterly for Exercise and Sport, 69(4), 355-67 Introduction