Physiological and Biomechanical Testing of EasyPedal Pedal Prototypes

Michael Hanlon, Rodney Kennedy

Research output: Book/ReportCommissioned report

Abstract

The aim of both studies was to assess the effects of the EasyPedal prototypes compared to conventional pedals on cycling efficiency. The main study and case study results do not indicate reduced energy expenditure when using the EasyPedal prototypes versus conventional pedals in either a typical cycling set-up or semi-recumbant position. This is based on similar levels of oxygen consumption and heart rate when using both pedal types at the same absolute cycling intensity (measured in watts. However, this does not rule out a potential benefit of the EasyPedal prototype when used at slower cycling cadences (testing in this study carried out at cadences of approximately 70 rpm) or with a novel/alternative cycling pattern. The testing detailed in this report illustrates the acute responses to using these pedal prototypes (i.e. after <30 minutes of use). It is possible that individuals could learn to perform an altered pedalling style which could make greater use of the potential mechanical advantages of the EasyPedal prototypes. Such an altered style would take time to develop and would change the neuromuscular requirements of the task. It is still unknown how much time would be required to develop such a pattern and what possible advantages it would provide in terms of cycling efficiency
LanguageEnglish
Number of pages11
Publication statusPublished - Jan 2012

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oxygen consumption
expenditure
energy
rate
effect

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@book{768cd76384cd414a90f7fcd0d7325622,
title = "Physiological and Biomechanical Testing of EasyPedal Pedal Prototypes",
abstract = "The aim of both studies was to assess the effects of the EasyPedal prototypes compared to conventional pedals on cycling efficiency. The main study and case study results do not indicate reduced energy expenditure when using the EasyPedal prototypes versus conventional pedals in either a typical cycling set-up or semi-recumbant position. This is based on similar levels of oxygen consumption and heart rate when using both pedal types at the same absolute cycling intensity (measured in watts. However, this does not rule out a potential benefit of the EasyPedal prototype when used at slower cycling cadences (testing in this study carried out at cadences of approximately 70 rpm) or with a novel/alternative cycling pattern. The testing detailed in this report illustrates the acute responses to using these pedal prototypes (i.e. after <30 minutes of use). It is possible that individuals could learn to perform an altered pedalling style which could make greater use of the potential mechanical advantages of the EasyPedal prototypes. Such an altered style would take time to develop and would change the neuromuscular requirements of the task. It is still unknown how much time would be required to develop such a pattern and what possible advantages it would provide in terms of cycling efficiency",
author = "Michael Hanlon and Rodney Kennedy",
note = "Reference text: 1. Koninckx, E., M. Van Leemputte, and P. Hespel, Effect of a novel pedal design on maximal power output and mechanical efficiency in well-trained cyclists. Journal of Sports Sciences, 2008. 26(10): p. 1015-1023. 2. Faria, E.W., D.L. Parker, and I.E. Faria, The science of cycling - Physiology and training - Part 1. Sports Medicine, 2005. 35(4): p. 285-312. 3. Coyle, E.F., et al., Physiological and biomechanical factors associated with elite endurance cycling performance Medicine and Science in Sports and Exercise, 1991. 23(1): p. 93-107. 4. Coyle, E.F., et al., Cycling efficiency is related to the percentage of type-I muscle fibers. Medicine and Science in Sports and Exercise, 1992. 24(7): p. 782-788. 5. Nordeensnyder, K.S., Effect of bicycle seat height variation upon oxygen-consumption and lower-limb kinematics. Medicine and Science in Sports and Exercise, 1977. 9(2): p. 113-117. 6. Shennum, P.L. and H.A. Devries, Effect of saddle height on oxygen-consumption during bicycle ergometer work. Medicine and Science in Sports and Exercise, 1976. 8(2): p. 119-121. 7. Hagberg, J.M., et al., Effect of pedaling rate on submaximal exercise responses of competitive cyclists. Journal of Applied Physiology, 1981. 51(2): p. 447-451. 8. Rodriguez-Marroyo, J.A., et al., The rotor pedaling system improves anaerobic but not aerobic cycling performance in professional cyclists. European Journal of Applied Physiology, 2009. 106(1): p. 87-94. 9. Belen, L., et al., Cycling performance and mechanical variables using a new prototype chainring. European Journal of Applied Physiology, 2007. 101(6): p. 721-726. 10. Zamparo, P., A.E. Minetti, and P.E. di Prampero, Mechanical efficiency of cycling with a new developed pedal-crank. Journal of Biomechanics, 2002. 35(10): p. 1387-1398. 11. Jobson, S.A., et al., Effect of the Rotor crank system on cycling performance. Journal of Sports Science and Medicine, 2009. 8(3): p. 463-467. 12. Van Sickle, J.R. and M.L. Hull, Is economy of competitive cyclists affected by the anterior-posterior foot position on the pedal? Journal of Biomechanics, 2007. 40(6): p. 1262-1267. 13. Coyle, E.F., Integration of the physiological factors determining endurance performance ability. Exercise and Sport Sciences Reviews, 1995. 23: p. 25-64. 14. Bertucci, W., et al., Effects on the crank torque profile when changing pedalling cadence in level ground and uphill road cycling. Journal of Biomechanics, 2005. 38(5): p. 1003-1010. 15. Faria, I.E., Energy expenditure, aerodynamics and medical problems in cycling - an update. Sports Medicine, 1992. 14(1): p. 43-63.",
year = "2012",
month = "1",
language = "English",

}

Physiological and Biomechanical Testing of EasyPedal Pedal Prototypes. / Hanlon, Michael; Kennedy, Rodney.

2012. 11 p.

Research output: Book/ReportCommissioned report

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AU - Hanlon, Michael

AU - Kennedy, Rodney

N1 - Reference text: 1. Koninckx, E., M. Van Leemputte, and P. Hespel, Effect of a novel pedal design on maximal power output and mechanical efficiency in well-trained cyclists. Journal of Sports Sciences, 2008. 26(10): p. 1015-1023. 2. Faria, E.W., D.L. Parker, and I.E. Faria, The science of cycling - Physiology and training - Part 1. Sports Medicine, 2005. 35(4): p. 285-312. 3. Coyle, E.F., et al., Physiological and biomechanical factors associated with elite endurance cycling performance Medicine and Science in Sports and Exercise, 1991. 23(1): p. 93-107. 4. Coyle, E.F., et al., Cycling efficiency is related to the percentage of type-I muscle fibers. Medicine and Science in Sports and Exercise, 1992. 24(7): p. 782-788. 5. Nordeensnyder, K.S., Effect of bicycle seat height variation upon oxygen-consumption and lower-limb kinematics. Medicine and Science in Sports and Exercise, 1977. 9(2): p. 113-117. 6. Shennum, P.L. and H.A. Devries, Effect of saddle height on oxygen-consumption during bicycle ergometer work. Medicine and Science in Sports and Exercise, 1976. 8(2): p. 119-121. 7. Hagberg, J.M., et al., Effect of pedaling rate on submaximal exercise responses of competitive cyclists. Journal of Applied Physiology, 1981. 51(2): p. 447-451. 8. Rodriguez-Marroyo, J.A., et al., The rotor pedaling system improves anaerobic but not aerobic cycling performance in professional cyclists. European Journal of Applied Physiology, 2009. 106(1): p. 87-94. 9. Belen, L., et al., Cycling performance and mechanical variables using a new prototype chainring. European Journal of Applied Physiology, 2007. 101(6): p. 721-726. 10. Zamparo, P., A.E. Minetti, and P.E. di Prampero, Mechanical efficiency of cycling with a new developed pedal-crank. Journal of Biomechanics, 2002. 35(10): p. 1387-1398. 11. Jobson, S.A., et al., Effect of the Rotor crank system on cycling performance. Journal of Sports Science and Medicine, 2009. 8(3): p. 463-467. 12. Van Sickle, J.R. and M.L. Hull, Is economy of competitive cyclists affected by the anterior-posterior foot position on the pedal? Journal of Biomechanics, 2007. 40(6): p. 1262-1267. 13. Coyle, E.F., Integration of the physiological factors determining endurance performance ability. Exercise and Sport Sciences Reviews, 1995. 23: p. 25-64. 14. Bertucci, W., et al., Effects on the crank torque profile when changing pedalling cadence in level ground and uphill road cycling. Journal of Biomechanics, 2005. 38(5): p. 1003-1010. 15. Faria, I.E., Energy expenditure, aerodynamics and medical problems in cycling - an update. Sports Medicine, 1992. 14(1): p. 43-63.

PY - 2012/1

Y1 - 2012/1

N2 - The aim of both studies was to assess the effects of the EasyPedal prototypes compared to conventional pedals on cycling efficiency. The main study and case study results do not indicate reduced energy expenditure when using the EasyPedal prototypes versus conventional pedals in either a typical cycling set-up or semi-recumbant position. This is based on similar levels of oxygen consumption and heart rate when using both pedal types at the same absolute cycling intensity (measured in watts. However, this does not rule out a potential benefit of the EasyPedal prototype when used at slower cycling cadences (testing in this study carried out at cadences of approximately 70 rpm) or with a novel/alternative cycling pattern. The testing detailed in this report illustrates the acute responses to using these pedal prototypes (i.e. after <30 minutes of use). It is possible that individuals could learn to perform an altered pedalling style which could make greater use of the potential mechanical advantages of the EasyPedal prototypes. Such an altered style would take time to develop and would change the neuromuscular requirements of the task. It is still unknown how much time would be required to develop such a pattern and what possible advantages it would provide in terms of cycling efficiency

AB - The aim of both studies was to assess the effects of the EasyPedal prototypes compared to conventional pedals on cycling efficiency. The main study and case study results do not indicate reduced energy expenditure when using the EasyPedal prototypes versus conventional pedals in either a typical cycling set-up or semi-recumbant position. This is based on similar levels of oxygen consumption and heart rate when using both pedal types at the same absolute cycling intensity (measured in watts. However, this does not rule out a potential benefit of the EasyPedal prototype when used at slower cycling cadences (testing in this study carried out at cadences of approximately 70 rpm) or with a novel/alternative cycling pattern. The testing detailed in this report illustrates the acute responses to using these pedal prototypes (i.e. after <30 minutes of use). It is possible that individuals could learn to perform an altered pedalling style which could make greater use of the potential mechanical advantages of the EasyPedal prototypes. Such an altered style would take time to develop and would change the neuromuscular requirements of the task. It is still unknown how much time would be required to develop such a pattern and what possible advantages it would provide in terms of cycling efficiency

M3 - Commissioned report

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