Qualitative Analysis

Question 1

Inter-sports Technical Differences

Answer 1

• Only compare sports that have similar movts e.g. soccer + hurdling don’t have a lot in common = not something you do a comparative biomechanical analysis for

Question 2

Intra-sport Technical Diversity

Answer 2

• So many different ways to hit a forehand in tennis i.e. different grips, square style, open style = more important to do a biomechanical analysis

Question 3

Inter-sports Technical Contrasts

Answer 3

• If perf outcome is similar = become more comparative
• Are still a lot of contrasts b/w the two

Question 4

Qualitative Analysis

Answer 4

• Human Movt is inherently complex.
  ○ There are many ways of performing the same task, there are more degrees of freedom that are required to perform a certain perf properly
• Qualitative Analysis involves “breaking down the movt into its basic elements + then qualitatively examining those elements from a biomechanical perspective”
• Quantitative analysis involves taking explicit measurements to measure aspects of perf

Question 5

Qualitative Analysis (1,2,3,4)

Answer 5

• 1. Describe ideal technique/s = one that performs the task efficiently
     ○ Fundamental knowledge of skill
     § Goal of skill
     § Characteristics of ideal technique
     § Determinant Analysis = hierarchy of which determinants contribute to perf
     
     2. Observe the perf
        ○ What conditions for perf
        ○ Where to observe
        ○ What to look for
        § Break down into key events + phases
        § Break down into dif body parts
• 3. Evaluate the perf
     ○ Identify errors
     ○ Evaluate errors
     § (no substitute for experience)
• 4. Instruct the performer

Question 6

Determinant Analysis

Answer 6

• Purpose is to identify factors contributing to perf
  ○ Many items to consider
  ○ Usually too many to consider simultaneously
  ○ Often conflicting benefits = there is a trade-off = you can optimise + make one variable important + that can diminish the value of another one e.g. difficult to make maximally optimally stable + optimally agile = usually have to sacrifice stability if you want agility
  ○ Must focus attention on most important factors
  ○ Organise ideas in a mechanically sound fashion
  ○ Investigate the differences b/w style + technique

Question 7

Qualitative Determinant Analysis Model

Answer 7

• Method
  ○ 1. Identify the exact perf variable
  ○ 2. Break this variable into components
  ○ 3. Assess the relative importance of components
• Deterministic as the lower levels make up the higher level

Question 8

e.g. long jump determinant analysis

Answer 8

the horizontal distance from board to nearest mark in the sand = take-off distance + flight distance + landing distance

Question 9

Intrinsic vs Extrinsic Factors

Answer 9

Intrinsic - factors within the athlete = subject to control
* Strength
* Power
* Flexibility
* Anthropometry
* Biomechanical factors
* Hydration levels
Extrinsic - external to the athlete = little control
* External outcomes
* Equipment
* Footwear
* Perf area
○ Court surface
○ Cricket pitch
○ Field
* Weather

Question 10

Style vs Technique: Sprinting

Answer 10

• If the perfs are equal = does that mean it is style + not technique
  ○ Achieving the same result does not mean the process of getting there was the same
  ○ Anatomical differences may mean someone would favour one technique over another to achieve greater results
• The process of which you achieve a certain perf outcome - something must change
• What works for you, may not work for someone else = individual biomechanics difs mean that there must be dif ‘optimal’ technique for dif people
• It’s quite difficult to change an athlete’s technique if they have been practising that technique + achieved the desired outcome over an extended period of time.
• There are many factors that result in a perf outcome so different balances of them for each individual could result in a better perf