Biomechanics

Question 1

What are the 3 main benefits of a warm up?

Answer 1

-Increases Blood Flow
-Increases Temperature
-Reduces Risk of Injury

Question 2

what is the benefits of increasing blood flow before a stretch?

Answer 2

it helps to deliver oxygen and nutrients to muscles makingthem more pliable and less prone to injury during the stretch.

Question 3

what is the benefits of increasing temeperature of muscles before a stretch?

Answer 3

it increases the efectiveness of the stretch due to greater tissue extensibility as the muslces are more respomsie when heated up.

Question 4

how does warming up befre stertching reduce risk of injury?

Answer 4

cold muscles are more sustainable to tears and strains.
By warming up it prepares the ligaments, tendons and muscles for the stress of stertching

Question 5

how long should you hold a stretch for and why?

Answer 5

between 20-30 seconds in order to ensure maximum elongation

Question 6

what is the difference between the plastic and elastic region?

Answer 6

Plastic region- ability to permanently change
Elastic region- recovers orignal shape and properties

Question 7

What type of force is applied during the stretch?

Answer 7

Tensile force

Question 8

what is a tensile force?

Answer 8

the deformation or elongation of a solid body due to the application of a tensile force or stress.

Question 9

how many times should you repeat the passive stretch?

Answer 9

3x within a session to achieve a maximum change in length.

Question 10

how ofeten should a person repeat a stretch?

Answer 10

they should repeat every 60-90 minutes to maintain/ increase change in length

Question 11

At what speed should you apply a stretch and why?

Answer 11

Slow because:
Slow stretch- provides greater elongation for the same amount of stress applied
Fast stretch- greater stress is needed to achieve same change in length.
(this is becasue stifness is increased if you apply force fast)