Week 6 - Lactate Threshold, OBLA, and VO2max

What two systems make up for the lack of oxygen during exercise?

• ATP-PC & Lactic Acid

• Lactic Acid & Aerobic

• Lactic Acid & Cardiovascular

• ATP-PC & Aerobic

The lactate threshold is defined as

• The point at which lactic acid begins to accumulate in the muscles at a faster rate than it can be removed.

• The point at which lactic acid starts to appear in the muscles

• The point at which lactic acid starts to decrease in the blood

• The point at which lactic acid accumulation is equal to the lactate removal

OBLA represents the point at which blood lactate

• abruptly decreases

• Increases slightly

• Increases exponentially

• Levels off

VO2max is

• The maximum aVO2 difference during exercise

• The maximum amount of oxygen the body can use during during the oxygen deficit

• The maximum amount of CO2 the body can produce during exercise

• The maximum volume of oxygen in milliliters the human body can use in one minute

Steady State is defined as what?

• When oxygen supply decreases to increase training effectiveness

• When oxygen supply meets demand

• When oxygen supply is below the demand

• When lactate accumulation equals a constant supply

During exercise, energy systems kick in one at a time depending on when they're needed? True or False

• True

• False

What happens at the lactate turning point?

• lactic acid starts to accumulate in muscle

• muscle fibres can't contract

• brings about fatigue

• All of the above

What type of recovery removes lactic acid faster from the muscle and blood stream post exercise?

• Resting

• Active Recovery - Low Intensity Exercise

• Active Recovery - High Intensity Exercise

• Static Stretching

What are the implications of having a higher Lactate Threshold?

• Lower VO2 max

• Less Mitochondria

• Recover slower

• Experience lactic acid accumulation later

To maintain aerobic capacity, an athlete should train

• once a week.

• twice a week.

• just below their lactate threshold.

• above 85% of their maximum heart rate.