Aerobic training (1.2) Flashcards
aerobic capacity
ability to take in, transport and utilise oxygen during sub maximal exercise
VO2 max def
highest amount of O2 you can take in during maximal exercise
5 factors affecting VO2 max
age gender training genetics/heredity individual physiological make up
individual physiological make up
dependent on 4 energy systems:
.respiratory syst ability to consume O2 (lung size etc)
.heart to transport O2 (heart size, SV etc)
.vascular syst to transport O2
.muscles to use O2 including cellular factors (myoglobin, mitochondria etc)
contribution of these allows athletes to increase aerobic capacity
genetics/heredity
.% of fibre type
.individuals genetic adaptation to training
.can amount for 1/2 VO2 max
only determines potential - still have to train to reach these levels
training
.max levels of aerobic capacity can be reached after 8-19 months of heavy endurance training
.specificity helps target endurance
age
VO2 max decreases 1% per year due to decrease in energy systems
2 main causes:
CV - max hr, CO (Q), SV decrease due to reduced elasticity of the left ventricle
Respiratory - lung volume including max VE decrease due to reduced elasticity of lungs
gender
.VO2 max levels 20-25% lower in females due to smaller body size
smaller lung volume = lower O2 intake
smaller heart = higher RHR - lower Q, SV
VO2 max test
.exercising on a treadmill/bike at an intensity that increases every few minutes until exhaustion
.designed to achieve a maximal effort.
.obtain the individual’s MHR + RHR to develop a precise target heart rate range.
VO2 max test pros
.directly measures body’s oxygen consumption
.direct measurement of maximum heart rate
VO2 max test cons
time consuming
expensive
not easily available
multi stage fitness test
.athlete runs back and forth 20m, making sure to reach each end as the beep sounds
.each level becomes harder
.go till they either fail to reach before beep 3 times, or quit
multi stage fitness test pros
easy to set up
multiple can complete at once
indoors or outdoors
multi stage fitness test cons
specialist equipment
not reflective for rowers/cyclists
can give up whenever
12 min Cooper run
.place markers at set intervals around a track
.participants run as far as they can in 12 minutes