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Functions in Sports
Madrid – Rovaniemi
2013
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Aims of the projectO To find the best fitting functions for
energy consumption and heartbeatO Inspect results and for example
gender-based varianceO The reliability of the functions in
long-termO Comparison between sports
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MeasuringO Measured variables: heartbeat and energy
consumption in every 30 seconds 20 points for graphs
O Work in pairs: one student measured the variables while the other did the exercise
O Heartbeatmonitors (manufactured by for example Polar) were used
O There were two boys and two girls for each sport
O Four sports: running, cycling, rowing and nordic walking
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Some example data
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Finding functions for heartbeat
O The sport shown here is runningO At first, we tried to fit a quadratic
function and then several other models
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Quadratic model
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Functions of a higher degree
O When we increased the power of the function, they seemed to resemble the measurements better
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O This function fits well but it’s not valid in long-term
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Logarithmic solutionO This seems to be the best model
hence the validity in long-term
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Sine functionO We tried to find out if there was any
regularity in the function after two points
O As we know, human heartbeat can’t reach 600 bpm
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Comparison between boys and girls
O It’s clear that we can’t make valid conclusions based on this project
O The results illustrate our group and the variance inside it
O Individual differences are a notable factor, since the group size is way too small for scientific research
O If we had a group of 500 persons, this project would’ve been closer to a scientific study
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Comparison between sports
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O We want to thank our wonderful teachers and all the other participants