Lecture 15 Flashcards
Measuring Exercise Intensity
4 things that measuring exercise intensity gives an indication of
- sustainability of exercise
- safety of exercise
- severity / progression / management of disease
- nature and magnitude of stimulus for adaptation
what relation of energy usage does does running have
linear
what relation of energy usage does does walking, swimming, biking or rowing have
non linear
what is the slope of VE/VO2 a useful indicator of
ventilatory efficiency
why can lactate threshold be extremely hard to identify and interpret
- lactate response inherently
- measurement error
- time at each stage affects lactate in bloof
- people differ in ability to sustain exercise at any given lactate
are smart watches valid indicators of intensity
no
what is the respiratory exchange ratio
VCO2 / VO2
what does an RER over 1 mean
no longer working in steady state and indicating higher use of anaerobic glycolysis
What 1 MET
3.5 ml O2 per kg body weight x min.
what is RPE and what is the scale
Rate of Perceived Exertion
0-10
three ways that heart rate is used to indicate exercise intensity
- heart rate (bpm)
- relative to max
- relative to its available range
how to use heart rate relative to its max to indicate exercise intensity (equation) and what does it indicate
%HRmax = HR / HRmax *100
better indicator of relative exertion
how to use heart rate relative to its available range to indicate exercise intensity (equation) and what does it indicate
HRR% = (HR - HR rest) / (HR max - HR rest) *100
excellent indicator of exertion
what is exercise economy
how much energy it takes you to move
what is exercise efficiency (also the equation)
metabolic cost of work
WR / MR *100
