Lecture 2 - Resistance & Energy Systems

Question 1

what are 4 fuel energy capacity in athletes?

Answer 1

max power output
VO2 max reached
oxygen diffusion capacity is reached
CV function is at maximum

Question 2

define ‘motion’

Answer 2

wave of energy directed along a pathway in which the lower resistance the more efficient the pathway

Question 3

define ‘kinetic chain’

Answer 3

synchronized mm contraction which produces desires motion

Question 4

training causes microtrauma leading to…

Answer 4

fibrosis particularly in tissues with decreased vascularity and dehydration and contraction of fascial tissues

Question 5

energy for muscle contraction produced by…

Answer 5

hydrolysis of ATP into ADP - ATP is stored in cells

Question 6

anaerobic system is energy metabolism in…

Answer 6

absence of oxygen (phosphagen and anaerobic systems)

Question 7

phosphagen system:

Answer 7

8-10 sec ; 100m sprinter

Question 8

anaerobic system:

Answer 8

1-2 min; 400 m swimmer

Question 9

aerobic system:

Answer 9

unlimited time; marathoner

Question 10

phosphagens are energy storing compounds found in…

Answer 10

muscle and nerve tissue (immediate access reserve of high energy phosphates used to make ATP, common on is creatine phosphate)

Question 11

breakdown of carbs through glycolysis occurs in the…

Answer 11

cytosol of cell

Question 12

glucose enters cell to be converted to…

Answer 12

ATP and pyruvic acid (6th step pyruvic acid to lactic acid)

Question 13

what is lactic acids 3 possible fates?

Answer 13

resynth as glycogen or glucose (15%)
oxidation to CO2 and water (75%)
conversion to various amino acids (10%)
(used in first 30-60seconds)

Question 14

endurance training positively affects what 3 things?

Answer 14

enzymes of aerobic metabolism, increase number of mitochondria and availability of free fatty acids