Acute responses

Acute Response

Factors that determine the Acute
Response to Exercise

Respiratory acute response

Ventilation= TV X RR
nb: Tidal Volume Plateau's
at submit (aerobic)

Cardiovascular
acute response

Cardiac

Vascular

- Increase A-Vo2 Difference- difference in oxygen concentration in the parties compared to the veins. It is a direct
representation of what is occurring in the muscles !!
- Decrease Blood Volume
(evaporation, soup on stove.)
-Increase Arterial blood flow

Muscular

Why is Glycogen our
preferred fuel over fats?

Oxygen Deficit

Remember: Ventilation, respiratory rate, tidal volume, Cardiac output, stroke volum, heart rate, vasodilation of blood to muscle and A-VO2 all increase to meet the demands of exercise aerobically

Steady State and how do we know it gets reached

EPOC/Oxygen Debt

Please not EPOC

Reduce EPOC

What occurs when you complete 5 x 100 m sprints with 30 sec recovery?
Discuss 2 likely reasons why the 5th sprint is almost 30% slower than the first sprint

HOT weather

However: this means that less blood will reach to the working muscle and hence the body will not be able to work at the intensity. This process pr mechanism is called THERMOREGULATION. If you do not consume water then you can DEHYDRATE

Recovery

Active recovery

AT ALTITUDE

A Altitude your VO2 Max would be lower due to less oxygen available.
Practical example is that an athlete may reach Level 14 in the Beep test at Sea level and the same athlete Only reach level 6 inArizona ( which is 3,000 m above sea level-which is at ALTITUDE) due to less oxygen available !!

A- Vo2 Difference

What occurs when you go above
LIP? Why does the graph inflect?

H+ Ions effect