Energy Expenditure 1
Pure fat metabolism has an RER of _____
0.7
The point at which lactate production exceeds the rate of clearance and results in a more exponential increase in blood lactate concentration is known as _______
lactate threshold
The enzyme involved in putting carbohydrates into storage as glycogen
Glycogen synthase
26.8 meters/min
The units for absolute VO2max
L O2/min
This method for measuring energy expenditure works well for accurately accessing total daily energy expenditure in free-living settings but can be expensive
Subtracting the resting energy expenditure from the total energy expended during an activity gives this
Net mechanical efficiency
During fatty acid synthesis, this substance inhibits CAT 1 activity, thus decreasing fatty acid oxidation
Malonyl-CoA
To convert from lbs to kg, divide lbs by this number
2.2
The units for relative VO2max
ml O2/kg/min
This is the most significant contributor to basal metabolic rate
Fat free mass
A runner with better running economy will use less oxygen at the same absolute exercise intensity (T or F).
True
The effect of exercise training on catecholamine and cortisol response during submaximal exercise
Decrease
This is the equivalent resting oxygen cost
3.5 ml/kg/min
Walking and running equations incorporate these two variables to determine relative VO2
walking speed and grade
This is the correct formula for calculating the Respiratory Exchange Ratio.
RER = VCO2/VO2
This term refers to the resistance impeding forward progress, such as with swimming
Drag forces
The active form of the enzyme responsible for glycogenolysis
phosphorylase a
Each L of oxygen consumed yields this many kcals expended
5 kcals
The absolute VO2max for an 92kg runner is 6L. His relative VO2max is _______
65.2 ml/kg/min
This term refers to the extra oxygen consumed after exercise in the recovery period, necessary to replenish ATP/PCr stores, convert lactate to glycogen, and clear CO2
EPOC
This term refers to the greater oxygen demand compared to the actual amount of oxygen consumed at the onset of exercise
oxygen deficit
This secondary messenger is stimulated by epinephrine and activates the enzyme that breaks down glycogen
cyclic AMP
1 Watt represents this many kgm/min
6.12 kgm/min
A 75kg runner would burn this many kcals in 30 minutes working at a relative VO2 of 35ml/kg/min.
393.75 kcals (394kcals)