Pédalier SRM
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- Inscription : 13 mars 2006, 21:06
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Pédalier SRM
pour vous est-ce utile d'avoir un pédalier SRM en triathlon ou Duathlon?
est-ce que quelqu'un en à un?
merci a+
est-ce que quelqu'un en à un?
merci a+
Duathlon Plus Qu'un Sport Un Art De Vivre!!
site web: http://www.quentinfarine.ch" onclick="window.open(this.href);return false;
site web: http://www.quentinfarine.ch" onclick="window.open(this.href);return false;
Au delà du système SRM, c'est les info que tu peux avoir qui sont vraiment intéressantes dans une perspective d'optimisation de la performance. Moi je fonctionne avec un Powertap (plus léger, plus fiable, facile à installer). Pour info va voir sur ce lien http://www.wts.fr/BoutiquePowerTAP_anal ... sance.html
Je voulais revenir sur mon message, plutôt que dire que le Powertap et plus fiable que le SRM, je dirais qu'il est aussi fiable que le SRM pour un poids moindre et un plus grande facilité d'utilisation (montage etc...).
Voila l'article en question (validé scientifiquement!)
Int J Sports Med. 2005 Dec;26(10):868-73. Related Articles, Links
Validity and reliability of the PowerTap mobile cycling powermeter when compared with the SRM Device.
Bertucci W, Duc S, Villerius V, Pernin JN, Grappe F.
Laboratoire de Mecanique Appliquee (U.M.R. C.N.R.S. 6604), Universite de Franche Comte, Besancon, France. William.Bertucci@Univ-Reims.fr
The SRM power measuring crank system is nowadays a popular device for cycling power output (PO) measurements in the field and in laboratories. The PowerTap (CycleOps, Madison, USA) is a more recent and less well-known device that allows mobile PO measurements of cycling via the rear wheel hub. The aim of this study is to test the validity and reliability of the PowerTap by comparing it with the most accurate (i.e. the scientific model) of the SRM system. The validity of the PowerTap is tested during i) sub-maximal incremental intensities (ranging from 100 to 420 W) on a treadmill with different pedalling cadences (45 to 120 rpm) and cycling positions (standing and seated) on different grades, ii) a continuous sub-maximal intensity lasting 30 min, iii) a maximal intensity (8-s sprint), and iiii) real road cycling. The reliability is assessed by repeating ten times the sub-maximal incremental and continuous tests. The results show a good validity of the PowerTap during sub-maximal intensities between 100 and 450 W (mean PO difference -1.2 +/- 1.3 %) when it is compared to the scientific SRM model, but less validity for the maximal PO during sprint exercise, where the validity appears to depend on the gear ratio. The reliability of the PowerTap during the sub-maximal intensities is similar to the scientific SRM model (the coefficient of variation is respectively 0.9 to 2.9 % and 0.7 to 2.1 % for PowerTap and SRM). The PowerTap must be considered as a suitable device for PO measurements during sub-maximal real road cycling and in sub-maximal laboratory tests.
Publication Types:
Validation Studies
PMID: 16320172 [PubMed - indexed for MEDLINE]
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Voila l'article en question (validé scientifiquement!)
Int J Sports Med. 2005 Dec;26(10):868-73. Related Articles, Links
Validity and reliability of the PowerTap mobile cycling powermeter when compared with the SRM Device.
Bertucci W, Duc S, Villerius V, Pernin JN, Grappe F.
Laboratoire de Mecanique Appliquee (U.M.R. C.N.R.S. 6604), Universite de Franche Comte, Besancon, France. William.Bertucci@Univ-Reims.fr
The SRM power measuring crank system is nowadays a popular device for cycling power output (PO) measurements in the field and in laboratories. The PowerTap (CycleOps, Madison, USA) is a more recent and less well-known device that allows mobile PO measurements of cycling via the rear wheel hub. The aim of this study is to test the validity and reliability of the PowerTap by comparing it with the most accurate (i.e. the scientific model) of the SRM system. The validity of the PowerTap is tested during i) sub-maximal incremental intensities (ranging from 100 to 420 W) on a treadmill with different pedalling cadences (45 to 120 rpm) and cycling positions (standing and seated) on different grades, ii) a continuous sub-maximal intensity lasting 30 min, iii) a maximal intensity (8-s sprint), and iiii) real road cycling. The reliability is assessed by repeating ten times the sub-maximal incremental and continuous tests. The results show a good validity of the PowerTap during sub-maximal intensities between 100 and 450 W (mean PO difference -1.2 +/- 1.3 %) when it is compared to the scientific SRM model, but less validity for the maximal PO during sprint exercise, where the validity appears to depend on the gear ratio. The reliability of the PowerTap during the sub-maximal intensities is similar to the scientific SRM model (the coefficient of variation is respectively 0.9 to 2.9 % and 0.7 to 2.1 % for PowerTap and SRM). The PowerTap must be considered as a suitable device for PO measurements during sub-maximal real road cycling and in sub-maximal laboratory tests.
Publication Types:
Validation Studies
PMID: 16320172 [PubMed - indexed for MEDLINE]
--------------------------------------------------------------------------------
Ce lien est pas mal aussi :
http://perso.orange.fr/l.reynaud/Comparatif.html
Je trouve que l'Ergomo est un bon compromis prix/fiabilité, entre le SRM et le Powertap.
L'avantage des systèmes inclus dans le boitier de pédalier (SRM et Ergomo) c'est qu'ils permettent de tester le rendement de la roue arrière (on peut comme ça comparer différentes roues et choisir la plus adaptée sur un parcours donné.)
http://perso.orange.fr/l.reynaud/Comparatif.html
Je trouve que l'Ergomo est un bon compromis prix/fiabilité, entre le SRM et le Powertap.
L'avantage des systèmes inclus dans le boitier de pédalier (SRM et Ergomo) c'est qu'ils permettent de tester le rendement de la roue arrière (on peut comme ça comparer différentes roues et choisir la plus adaptée sur un parcours donné.)
Pasta Party Finisher since 2006
Sans rentrer dans un comparatif, voici la présentation du Powertap qui avait été faite sur mon site :
http://www.triathlonperformance.com/sit ... .php?id=48
http://www.triathlonperformance.com/sit ... .php?id=48
Optimiser votre position vélo ?
http://www.velofitting.com
Il n'y a pas de chemin vers le bonheur, le chemin est le bonheur.
http://www.velofitting.com
Il n'y a pas de chemin vers le bonheur, le chemin est le bonheur.