S2 lab 3 - Wingate +cycling power
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17 Terms
what does the Wingate test measure
anaerobic power and capacity
How long is the Wingate test?
30s all out cycling
6s sprint protocol
5-7 maximal sprints at different % body mass resistances
warm-up steps
5min cycling + practice sprints
when is load applied
automatically at up to 70rpm
recovery between sprints
at least 2 minutes active recovery
peak power
average power across test
fatigue index equation
(peak-minimum power) / peak x 100
how to determine optimal load
regression of load vs power
why is max power not at max speed
power depends on both force and velocity
main energy systems used
ATP-PCr +anaerobic glycolysis
can you illustrate the force-velocity and power-velocity relationships of muscular contraction during maximum cycling in graphs
force-velocity: negative linear relationship
power-velocity: normal distribution-like curve, optimal power production when velocity=50%
varies depending on muscle fibre type, training history etc
why may you achieve the highest power output with a load that does not result in the highest maximum speed?
at high speeds, you are unable to produce high force due to the reduced number of cross-bridges formed (not enough time)
power=force x velocity
optimal combo=50% max force and 50% max velocity
dependent on energy systems
how applicable is the Wingate test to game-specific performance?
high correlations between peak power output and performance
games require speed and power in intermittent bouts
what energy systems are used for muscular contraction and to replenish ATP during the 30s Wingate test?
not one energy system at 100%
ATP-Pc system
anaerobic glycolytic system
aerobic system
all energy systems used, contributions vary
in terms of muscle phenotype, what factors relate to Wingate performance (maximal power output, mean power output, fatigue index)
percentage of Type II fibres
fatigue resistance
high oxidative and glycolytic capacity
optimisation of crank length
17.5cm
depends on lower limb length-6.3 limb to crank ratio