Energy systems

How is the human body made to move?

• Quickly and powerfully

• Gracefully and coordinated

• Sustained for many hours

• All of the above

Quick movements...

• Lasts a few seconds

• Lasts for several minutes

• Lasts for several hours

Reduced speed...

• Lasts for several hours

• Lasts a few seconds

• Lasts for several minutes

Reduced intensity (50%)...

• Lasts for several minutes

• Lasts for several hours

• Lasts a few seconds

How do you measure your max heart rate?

Low intensity

• 0-50%

• <70%

• 0%

Moderate intensity

• 90-70%

• 30-50%

• 50%

High intensity

• 100%

• 70%>

• 90-100%

Food=energy

No energy=?

• Minimal function

• Body stops

• Death

Do cells get their energy directly from foods?

• True

• False

Answer explanation

The food must be broken down first before it can be used to provide energy.