VCE PE QUALITATIVE MOVEMENT ANALYSIS

qualitative movement analysis, 4 stages

what does qualitative analysis involve

purposeful observation of a skill performed live or recorded followed by judgement of quality of movement, allowing for feedback and strategies to improve performance.

• non-numerical data collection

primary vs secondary data

primary

• info & data collected firsthand by indiv. or group.

  • student own recording, self-reflection, coach observing

secondary

• info & data collected by someone else used to inc. understanding & application of existing knowledge

  • videos of someone else

qualitative vs quantitative analysis

qualitative

• collecting, analysing non-numerical data to understand and imp. movement concepts.

  • subjective

  • focuses on quality of movement

  • used for technique

quantitative

• numerical and statistical data. collection, measurement and evaluation of data from movement skills.

  • objective

  • eg. heart rates

people who use qualitative movement analysis and why

people

• Coaches, Biomechanists, Sports medical staff, Physical therapists, PE teachers

why

• Analysing movements & skills, Modifying movement, Error detection & improvement, Talent identification, Player profiling/ranking, Identifying strengths, Injury prevention

1.PREPARATION STAGE

prerequisite knowledge of the skill/movement is researched and consideration is given to how, where and when to conduct the next stage (observation). Analyst plans, research & considers their actions to give performer advice and imp their quality of movement. They need to consider:

• features of movement/skill

  • research on how skill is most effectively performed from biomechanical and physiological perspective. From elite performers using their performance as a template for comparison,

• stage of learning & skill level

  • affects what info is provided - feedback, how skill is practiced. If cog stage - simple info, subroutines, ass-auto → more precise feedback

• where skill is performed & viewed

  • closed env → performer control timing of skill consistently w/o distractions

• observation methods

  • direct observation or digital recording

• how info will be considered, evaluated, communicated

  • how is progress tracked, feedback to performer, use computer software or not, give improvements after viewing or recording or performance,

2.OBSERVATION STAGE + reliability definition

involves either live or recording of subject performing a skill/movement pattern. Implementing observation strats. Need to consider:

• direct observation, note-taking. Adv & disadv

  • coach viewing skill/movement being performed, making reference to a checklist or rubric of how optimal movement is performed by the elite → makes data more objective

  • adv → immediate actions can be taken

  • disadv → subjective, cant show players how they performed, limited by memory

• digital video recording, adv & disadv

  • use of devices to record movement

  • adv → easy access any time, data manipulated by AI

  • disadv → expensive some, often requires technical expertise to operate & understand data collected

• continuous high-speed photography (burst photos)

  • good to observe actions that occur quickly that could be missed, shows how skill is sequenced and muscle groups

• motion capture (mocap)

  • records body movements & creates 3d model of it → template. Shows skill execution and prevent injury from bad technique.

• viewing position

  • need clear, uninterrupted view of performance

• viewing plane

  • viewing side on, front on, overhead, behind the performer

• viewing reliability.

  • no. times performance viewed in comp is limited by how frequently skill is performed, thus better observe in training (closed env) = more skill observed = reliable results.

reliability = able to be relied on but in this context → how often performance can be replicated consistently. More observations = inc. reliability and representative of how theyre performed on regular basis rather than anomaly one-offs.

3.EVALUATION STAGE + objective vs subjective, quality

involves judgements about the quality of movements. identifying strengths & weaknesses in technique, considering how improvements can be made. similarities & differences between performers movement/skill and that of an elite performer. Can be objective or subjective

objective → using checklists, rating scales, rubrics. Has greater consistency

subjective → opinion/interpretation of whats been observed

quality → extent skills/movements can be performed in a controlled & optimal way, high levels of performance.

checklists → inc. objectivity

need to consider:

• strengths & weaknesses of performer

• what might be causing problems

• how can problems be addressed & improved

• which areas need more imp & be prioritised

4.ERROR CORRECTION STAGE + intervention

involves implementing improvement strats to address weaknesses & errors in technique to imp. quality of movement/skills.

suggested mods should be practised:

• closed env, distributed practice (esp cog learners), massed practice (ass/auto learner)

coaches can correct errors and imp. movement by:

• discussing possible imp. strats w players

• break skill into subroutines

• demonstrate correct movement application

• physically moving player body parts to exp. quality movement esp for cog learner.

intervention → implementing an action/program in an attempt to bring about improvements. consider:

• regular feedback after each practice session

• some movements are ingrained and hard to modify

POST ERROR CORRECTION/INTERVENTION EVALUATION

intervention evaluation→ Understanding what impact an intervention has had and to what extent improvements have been made relative to goals. primary data be collected again to evaluate the effectiveness of the ‘new’ technique.

• collected under same conditions- post intervention

• see to what extent intervention has achieved desired outcome and improved quality of movement.

• what parts of strat has worked, do they need to be removed, reconsidered?

new set of strat is decided and practiced after before another QMA.

WORKED EXAMPLES - add next time you revisit (look at edrolo)