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describe a common test used for the immediate and short-term energy systems
Wingate test: biking at maximum capacity against a certain percentage of your body
weight for 30 seconds
what is the common physiological indicator of short-term energy system being
used?
Blood lactate levels
Define VO2max. How can you measure it?
This is the maximal rate of oxygen consumption a person can reach during exercise
"No further increase in VO2 despite an increase in exercise intensity
Measuring it by sprinting
This is also the maximal ability to make ATP aerobically
Measurement:
- Graded exercise intensities (low to high intensity)
- RER > 1.1
- HR within 10% of age predicted HR max (220-age)
- Lactate accumulation (7-8 mM)
- Leveling off of VO2 with increasing exercise intensity (Primary index)
What's the difference between maximal oxygen consumption and peak oxygen
consumption?
-Maximal oxygen consumption is where they reach the leveling off and also pass the 3
others criteria. Also, the absolute highest rate of oxygen consumption of a person during
exercise.
-Peak oxygen consumption: a peak of someone's oxygen consumption during
submaximal exercise that is lower than their maximum rate
What is the difference between efficiency and economy?
-Efficiency: is the ratio of the external work performed divided by the energy expenditure
for that task (x100)
- Being more efficient and not working as hard (same task as a less efficient person but
using less energy)
-Economy: it's determined by measuring the oxygen consumption of a steady task (e.g.,
VO2 while running at a 10mph on a treadmill).
-Economy also refers to the relationship between oxygen consumption and running
velocity while efficiency is the ratio between mechanical anergy produced during
exercise and the energy cost of the exercise.
What's the difference of gross vs net energy expenditure?
-Gross EE: all of the energy expended during exercise
-Net EE: the additional energy needed (above RMR) to accomploish the exercise (GEE-
RMR=NEE)
inspriation
ribs raise --> diaphragm lowers --> lung pressure decreases
exhalation