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Statements

Subject Item
n2:RIV%2F61989592%3A15510%2F13%3A33147251%21RIV14-MSM-15510___
rdf:type
n5:Vysledek skos:Concept
dcterms:description
BACKGROUND: Recenly, the popularity of Nordic walking (NW) has been rising steadily. Many scientific studies researched the promising and beneficial effects of this form of physical activity. However, only a few studies provided data about the forces acting on the poles. We did not find a commercially available system that enables the measurement of the poling forces. OBJECTIVE: The objective of this paper was to develop and validate a system for measuring the poling forces during NW. METHODS: Strain gauge force tranducers were mounted below the grips of standard NW poles. The transducer signals were amplified and converted to digital form for transmitting to a personal computer. Special software was developed for processing the measured data and the calculation method of output variables was described. Validation of the system was performed using a Kistler force plate. Poling cycles with peak force of about 150 N were imitated by pressing the pole over a force plate. RESULTS: A function sample of the measurement system was constructed. Validation yielded the mean absolute error of 1.1 N in case of poling cycles without pole impacts or 3.0 N in case of poling cycles with impacts. CONCLUSIONS: The validation result of our system is comparable to the results of similar systems used for measurements during cross-country skiing. The system enables independent measurement of the poling forces on both poles and the duration of measurement can be up to one hour. The system provides a tool that can be used to answer a number of questions that researches raise about NW. Understanding of the biomechanical and physiological aspects of poling action can constitute a scientific basis for promoting, teaching and training of NW. BACKGROUND: Recenly, the popularity of Nordic walking (NW) has been rising steadily. Many scientific studies researched the promising and beneficial effects of this form of physical activity. However, only a few studies provided data about the forces acting on the poles. We did not find a commercially available system that enables the measurement of the poling forces. OBJECTIVE: The objective of this paper was to develop and validate a system for measuring the poling forces during NW. METHODS: Strain gauge force tranducers were mounted below the grips of standard NW poles. The transducer signals were amplified and converted to digital form for transmitting to a personal computer. Special software was developed for processing the measured data and the calculation method of output variables was described. Validation of the system was performed using a Kistler force plate. Poling cycles with peak force of about 150 N were imitated by pressing the pole over a force plate. RESULTS: A function sample of the measurement system was constructed. Validation yielded the mean absolute error of 1.1 N in case of poling cycles without pole impacts or 3.0 N in case of poling cycles with impacts. CONCLUSIONS: The validation result of our system is comparable to the results of similar systems used for measurements during cross-country skiing. The system enables independent measurement of the poling forces on both poles and the duration of measurement can be up to one hour. The system provides a tool that can be used to answer a number of questions that researches raise about NW. Understanding of the biomechanical and physiological aspects of poling action can constitute a scientific basis for promoting, teaching and training of NW.
dcterms:title
Development and validation of system for measuring poling forces during Nordic walking Development and validation of system for measuring poling forces during Nordic walking
skos:prefLabel
Development and validation of system for measuring poling forces during Nordic walking Development and validation of system for measuring poling forces during Nordic walking
skos:notation
RIV/61989592:15510/13:33147251!RIV14-MSM-15510___
n5:predkladatel
n6:orjk%3A15510
n3:aktivita
n4:S n4:Z
n3:aktivity
S, Z(MSM6198959221)
n3:cisloPeriodika
3
n3:dodaniDat
n7:2014
n3:domaciTvurceVysledku
n16:6559638 n16:1992104 n16:2556626 n16:7012136
n3:druhVysledku
n9:J
n3:duvernostUdaju
n18:S
n3:entitaPredkladatele
n19:predkladatel
n3:idSjednocenehoVysledku
69065
n3:idVysledku
RIV/61989592:15510/13:33147251
n3:jazykVysledku
n13:eng
n3:klicovaSlova
data processing; force-time curve; validation; strain gauge
n3:klicoveSlovo
n10:strain%20gauge n10:force-time%20curve n10:data%20processing n10:validation
n3:kodStatuVydavatele
CZ - Česká republika
n3:kontrolniKodProRIV
[21C54664A881]
n3:nazevZdroje
Acta Universitatis Palackianae Olomucensis. Gymnica
n3:obor
n15:AK
n3:pocetDomacichTvurcuVysledku
4
n3:pocetTvurcuVysledku
4
n3:rokUplatneniVysledku
n7:2013
n3:svazekPeriodika
43
n3:tvurceVysledku
Pšurný, Martin Janura, Miroslav Jakubec, Aleš Krejčí, Jakub
n3:zamer
n17:MSM6198959221
s:issn
1212-1185
s:numberOfPages
8
n12:organizacniJednotka
15510