analysing movement through technology

Question 1

what are the three ways of analysing movement through technology?

Answer 1

limb kinematics
force plates
wind tunnels

Question 2

what are limb kinematics?

Answer 2

study to motion in relation to time and space
reflective markers are placed on the joints to capture unique movement of limbs which is used to create a 3D image to evaluate limb efficiency

Question 3

what does limb kinematics measure?

Answer 3

bone geometry
displacement
velocity
acceleration

Question 4

how does limb kinematics optimise performance?

Answer 4

gives them feedback
you can compare differences between performance by superimposing, seeing different techniques

Question 5

what are the drawbacks of limb kinematics?

Answer 5

expensive equipment
results don’t take into account individual differences
lab conditions make techniques hard to reenact in game situations

Question 6

what are force plates used for?

Answer 6

measure the ground reaction force
gait analysis
balance
rehab
physical therapy

Question 7

how do force plates work?

Answer 7

force traduces are included in the plate which is embedded in the ground
electrical output is displayed in a graphical form on the screen

Question 8

who uses force plates?

Answer 8

people recovering from injury
explosive sports
power athletes

Question 9

how do force plates optimise performance?

Answer 9

provide training insights for coaches to support rehabilitation processes
improved technique
prevent injury
generates large amounts of information

Question 10

drawbacks of force plates

Answer 10

rarely large enough to capture consecutive foot strikes
typically cannot describe the location of the peak force
requires specialised training
not available to everyone

Question 11

what do wind tunnels do?

Answer 11

analyse the amount of air resistance and object is creating whilst in motion

Question 12

when would you use a wind tunnel?

Answer 12

F1 cars
cycle helmets
footballs

Question 13

how do wind tunnels help optimise performance?

Answer 13

can make adjustments to the design to increase streamlining and reduce effects of air resistance and speed increases
eg. led to development of DRS

Question 14

drawbacks of wind tunnels

Answer 14

full size ones not allowed to be used in f1 due to expense
expensive to operate due to fan
Loud
large ones take up lots of space

Question 15

Describe how limb kinematics can be used to enhance performance in sport.

Answer 15

1. (technology) Video/ motion/ 3D analysis of a sporting action/ movement/ skill/ technique
2. (assessment) Assesses gait/ movement efficiency/ velocity/ acceleration/ joint angles
3. (technique) (Identifies small changes) to improve technique
4. (injury) Helps prevent (repetitive strain/joint) injuries