task 6

Question 1

muscle fatigue is primarily caused by..

Answer 1

the increasing concentration of metabolic by- products

Question 2

lack of energy leads to

Answer 2

the formation of lactic acid -> inhibits muscle function ->muscle fatigue

Question 3

during fatigue the amplitude (intensity) of the contraction (…) and the contraction time (….)

Answer 3

decrease, increase

Question 4

which muscle fiber exhaust faster- the white or red?

Answer 4

the white muscles

Question 5

what are the characteristics of white muscle fibers

Answer 5

glycolytic(anaerobic metabolism) contains fast-twitch fibers, exhaust faster, for eg. m. gastrocnemius

Question 6

what are the characteristics of red muscle fibers

Answer 6

oxidative, slow-twitch fibers, exhaust slower, for eg. m. long. dorsi