Biomechanics Jan 17

Question 1

What is the two stage process that needs to be considered for a needs analysis

Answer 1

1) Sport
2) Athlete

Question 2

What considerations need to go into 1) sport in a needs analysis?

Answer 2

• what m groups are trained
• what is the m action (iso/ecc/conc)
• time motion characteristics/E system

Question 3

What considerations need to go into 2) athlete in a needs analysis?

Answer 3

• training and competition hx
• S+C hx/ MDT
  -sites of injury in those previous tr/competiton/sport hx
• risks of training/sport and or mc injuries
  -current training program
• physical testing + evaluation hx/information
• athlete goals similar to my goals (to win)

Question 4

What is a deterministic model?

Answer 4

explores parameters which influence the performance of a particular task/skill to allow us to determine characteristics which are important for maximizing performance of particular task

Question 5

What factors go into consideration of needs analysis - example peak ball velocity

Answer 5

Level 2: foot impact, length, effective mass of foot, mass of ball

Level 3: Ft impact: L hip impact velocity, L hip R knee relative impact velocity, R foot relative impact velocity

Level 4: L hip peak v, change in hip peak v; R hip similar

Level 5: peak pelvic angular v

Question 6

Sprint start, first 5m: what would a needs analysis of the sport include?

Answer 6

start time and sprint time

start time includes reaction time, block clearance time

Sprint time includes average velocity, then includes stride L and stride rate

Stride L includes take off d, flight d, landing distance

Stride rate includes stride time which is made up of ground time, flight time

Flight distance includes block clearance v, angle of release, height of release and air resistance
–> block clearance feeds back into block clearance time

Question 7

Key in high jump example: goal is to translate horizontal velocity to ?

Answer 7

to vertical

Question 8

For max height in a high jump take off, what needs to be considered?

Answer 8

Take off height (product of limb L and body pos)

Take off v (product of impulse, which is due to vertical force, from power, which comes from concentraic and reactive leg power + power of hip + power of shoulder

Reach height (limb L and body position)

Question 9

Impulse is a direct determination of ___

Answer 9

velocity

Question 10

What are kinematics (as discussed in take off h, take off v and reach height of high jump example)

Answer 10

external movement in sport

Question 11

Basics of high jump - what needs to be considered in terms of run up/technique

Answer 11

Run up: horiz to convert on take off to kinetic and potential E for max h/vertical

techn: fosbury flop: velocity of COM to clear arch