Accuracy in measurement of elevation gain in road cycling

Paolo Menaspa, Eric Haakonssen, Avish Sharma, Brad Clark

    Research output: Contribution to journalArticle

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    Abstract

    Purpose. Accurate measures of elevation gain are important for monitoring energy expenditure and physical load. The aim of this study was to determine the accuracy of barometric devices used for measuring elevation gain.

    Methods. Observational validation study. Twenty-eight barometric altimeter devices (SRM and Garmin) were used to measure total elevation gain during cycling over three different climbs (length range: 3.2-18.4 km), giving a total of 216 climbs. An online mapping tool (http://www.freemaptools.com/elevation-finder.htm) was used to calculate the criterion measure of total elevation gain. Data were categorised into two weather conditions: dry and wet.

    Results. The standard errors of the estimate for total elevation gain measured by SRM and Garmin devices were 1.5% and 1.9%, respectively. In dry conditions, SRM devices underestimated the total elevation gain by an on average by of ~5% while the Garmin devices underestimated it by ~2%. In wet weather conditions the bias worsened to -25%.

    Conclusions. Measurements of total elevation gain recorded with devices of differed brands were similarly accurate in dry weather conditions. Wet weather conditions significantly decreased the accuracy of total elevation gain measurements.
    Original languageEnglish
    Pages (from-to)10-12
    Number of pages3
    JournalJournal of Science and Cycling
    Volume5
    Issue number1
    Publication statusPublished - 2016

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    road
    altimeter
    expenditure
    weather condition
    monitoring
    energy

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    Menaspa, Paolo ; Haakonssen, Eric ; Sharma, Avish ; Clark, Brad. / Accuracy in measurement of elevation gain in road cycling. In: Journal of Science and Cycling. 2016 ; Vol. 5, No. 1. pp. 10-12.
    @article{17b0c3ac546d4460b8902533ebc8df66,
    title = "Accuracy in measurement of elevation gain in road cycling",
    abstract = "Purpose. Accurate measures of elevation gain are important for monitoring energy expenditure and physical load. The aim of this study was to determine the accuracy of barometric devices used for measuring elevation gain.Methods. Observational validation study. Twenty-eight barometric altimeter devices (SRM and Garmin) were used to measure total elevation gain during cycling over three different climbs (length range: 3.2-18.4 km), giving a total of 216 climbs. An online mapping tool (http://www.freemaptools.com/elevation-finder.htm) was used to calculate the criterion measure of total elevation gain. Data were categorised into two weather conditions: dry and wet.Results. The standard errors of the estimate for total elevation gain measured by SRM and Garmin devices were 1.5{\%} and 1.9{\%}, respectively. In dry conditions, SRM devices underestimated the total elevation gain by an on average by of ~5{\%} while the Garmin devices underestimated it by ~2{\%}. In wet weather conditions the bias worsened to -25{\%}.Conclusions. Measurements of total elevation gain recorded with devices of differed brands were similarly accurate in dry weather conditions. Wet weather conditions significantly decreased the accuracy of total elevation gain measurements.",
    keywords = "observational validation study, training load, barometric altitude, portable measurement systems, performance analysis",
    author = "Paolo Menaspa and Eric Haakonssen and Avish Sharma and Brad Clark",
    year = "2016",
    language = "English",
    volume = "5",
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    Menaspa, P, Haakonssen, E, Sharma, A & Clark, B 2016, 'Accuracy in measurement of elevation gain in road cycling', Journal of Science and Cycling, vol. 5, no. 1, pp. 10-12.

    Accuracy in measurement of elevation gain in road cycling. / Menaspa, Paolo; Haakonssen, Eric; Sharma, Avish; Clark, Brad.

    In: Journal of Science and Cycling, Vol. 5, No. 1, 2016, p. 10-12.

    Research output: Contribution to journalArticle

    TY - JOUR

    T1 - Accuracy in measurement of elevation gain in road cycling

    AU - Menaspa, Paolo

    AU - Haakonssen, Eric

    AU - Sharma, Avish

    AU - Clark, Brad

    PY - 2016

    Y1 - 2016

    N2 - Purpose. Accurate measures of elevation gain are important for monitoring energy expenditure and physical load. The aim of this study was to determine the accuracy of barometric devices used for measuring elevation gain.Methods. Observational validation study. Twenty-eight barometric altimeter devices (SRM and Garmin) were used to measure total elevation gain during cycling over three different climbs (length range: 3.2-18.4 km), giving a total of 216 climbs. An online mapping tool (http://www.freemaptools.com/elevation-finder.htm) was used to calculate the criterion measure of total elevation gain. Data were categorised into two weather conditions: dry and wet.Results. The standard errors of the estimate for total elevation gain measured by SRM and Garmin devices were 1.5% and 1.9%, respectively. In dry conditions, SRM devices underestimated the total elevation gain by an on average by of ~5% while the Garmin devices underestimated it by ~2%. In wet weather conditions the bias worsened to -25%.Conclusions. Measurements of total elevation gain recorded with devices of differed brands were similarly accurate in dry weather conditions. Wet weather conditions significantly decreased the accuracy of total elevation gain measurements.

    AB - Purpose. Accurate measures of elevation gain are important for monitoring energy expenditure and physical load. The aim of this study was to determine the accuracy of barometric devices used for measuring elevation gain.Methods. Observational validation study. Twenty-eight barometric altimeter devices (SRM and Garmin) were used to measure total elevation gain during cycling over three different climbs (length range: 3.2-18.4 km), giving a total of 216 climbs. An online mapping tool (http://www.freemaptools.com/elevation-finder.htm) was used to calculate the criterion measure of total elevation gain. Data were categorised into two weather conditions: dry and wet.Results. The standard errors of the estimate for total elevation gain measured by SRM and Garmin devices were 1.5% and 1.9%, respectively. In dry conditions, SRM devices underestimated the total elevation gain by an on average by of ~5% while the Garmin devices underestimated it by ~2%. In wet weather conditions the bias worsened to -25%.Conclusions. Measurements of total elevation gain recorded with devices of differed brands were similarly accurate in dry weather conditions. Wet weather conditions significantly decreased the accuracy of total elevation gain measurements.

    KW - observational validation study

    KW - training load

    KW - barometric altitude

    KW - portable measurement systems

    KW - performance analysis

    M3 - Article

    VL - 5

    SP - 10

    EP - 12

    JO - Journal of Science and Cycling

    JF - Journal of Science and Cycling

    SN - 2254-7053

    IS - 1

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