Functions in Sports

Madrid – Rovaniemi

2013

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

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

Some example data

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

Quadratic model

Functions of a higher degree

O When we increased the power of the function, they seemed to resemble the measurements better

O This function fits well but it’s not valid in long-term

Logarithmic solutionO This seems to be the best model

hence the validity in long-term

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

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

Comparison between sports

O We want to thank our wonderful teachers and all the other participants