Phys: excercise & sports phys

Question 1

strength dteremined by

Answer 1

size of muscle

Question 2

power determined by

Answer 2

measured by total amt of work in a period of time

Question 3

endurance determined by

Answer 3

measured by nutritive support

Question 4

high energy phosphate bond?

Answer 4

decomposes to creatine & phopshate ions, releasing large amounts of energy

Question 5

ATP

Answer 5

energy transfer from phosphocreatine to ATP occurs quickly

Question 6

phospagen energy system

Answer 6

cell ATP+phosphocreatine, quick bursts of energy 8-10 seconds

Question 7

glycogen-lactic acid system

Answer 7

stored glycogen in muscle splits into glucose for energy

Question 8

glycolysis

Answer 8

anaerobic met. each glucose molecule splits into 2 pyruvic acid molecules= 4 ATP

Question 9

Lactic Acid

Answer 9

lack of air, pyruvic acid converted to lactic acid, causes considerable amount of ATP formation, 1.3-1.6 min

Question 10

aerobic system

Answer 10

oxidation foodstuffs in mitochondria for energy: glu, FA, carbs, AA

Question 11

phosphagen system

Answer 11

100 meter dash
weight kifting, diving
football dashes

Question 12

phosphagen & glycogn systems utilized

Answer 12

200 meter dash, basketball
baseball home run
ice hockey dashes

Question 13

glycogen- lactic acid systems utilized

Answer 13

400 meter swim
tennis
soccer

Question 14

glycogen, lactic acid & aerobic systems utilized

Answer 14

800 meter dash, 1 mile run
200 & 400 meter swim
1500 meter skating & running, boxing, 2000 meter rowing

Question 15

aerobic system utilized

Answer 15

10,000 meter skate
cross country skiing
marathon run (26 miles)
jogging