OBLA

Question 1

what’s the reason for lactate being produced

Answer 1

glycolisis in the anaerobic glycolytic system. The higher the intensity, the more lactic acid

Question 2

how is lactate formed

Answer 2

lactic acid breaks down releasing hydrogen ions. The remaining compound combines with sodium ions (NA+) or potassium ions (K+) to form the salt lactate.

Question 3

what happens when lactate accumulates in the muscles and more H+ ions are present

Answer 3

increases acidity

Question 4

what happens when acidity increases

Answer 4

it slows down enzyme activity which affects the breakdown of glycogen so the muscles fatigue

Question 5

what happens to the lactate produced in the muscles

Answer 5

diffuses into the blood and the blood lactate can be measured.

Question 6

whats the lactate threshold

Answer 6

the point during exercise at which lactic acid quickly accumliates in the blood

Question 7

whats the crossing of aerobic into anaerobic threshold known as

Answer 7

Lactate threshold

Question 8

What is obla

Answer 8

the point at which the body produces excess lactic acid compared to normal

Question 9

What does OBLA stand for

Answer 9

onset blood lactate accumulation

Question 10

how much lactate can be found in the blood at rest

Answer 10

1-2mmol

Question 11

when does OBLA occur

Answer 11

when lactate levels go above 4mmol

Question 12

what does measuring OBLA give u

Answer 12

an indication of endurance copacity

Question 13

how is OBLA expressed

Answer 13

as a percentage of vo2max

Question 14

whats the percentage of the vo2 max for a trained and untrained person

Answer 14

trained- 70-90% of their vo2max
untrained- 50-60%