Lecture 2 (PE 32).docx

78 views2 pages
23 Oct 2013
Lecture 2: Cardiorespiratory Endurance (stamina)
Reduced risk of chronic disease
Better control of body fat
Improved immune function
Improved psychological well-being
Improved cardio-respiratory functioning
Improved cellular metabolism
Cardiorespiratory Endurance
Defined as the ability of the body to perform prolonged, large muscle, dynamic exercise
at moderate to high levels of intensity
o Take in (lungs)
o Deliver (heart)
o Use (muscle cells)
Energy Production
The body converts chemical energy from food into substances the cells can use as fuel
ATP (adenosine triphosphate) basic form of energy used by cells
o Converts food substances that cells use as fuel
Metabolic Processes
Food 1,2 Fuel
o In the absence of Oxygen
1. Immediate Stores (ATP, CP)
2. Anaerobic or nonoxidative metabolism
Food 3 Fuel
o In the presence of Oxygen
3. Aerobic or oxidative metabolism
Characteristics of the Body’s energy systems
Anaerobic Metabolism
Duration of Activity for which system
10 secs 2 mins
Intensity of activity for which system
Rate of ATP production
Muscle stores of glycogen/glucose
Oxygen used?
Sample activities
400m run, running up stairs
Unlock document

This preview shows half of the first page of the document.
Unlock all 2 pages and 3 million more documents.

Already have an account? Log in

Get OneClass Notes+

Unlimited access to class notes and textbook notes.

YearlyBest Value
75% OFF
$8 USD/m
$30 USD/m
You will be charged $96 USD upfront and auto renewed at the end of each cycle. You may cancel anytime under Payment Settings. For more information, see our Terms and Privacy.
Payments are encrypted using 256-bit SSL. Powered by Stripe.