Force velocity relationship and maximal power on a cycle ergometer

force velocity relationship and maximal power on a cycle ergometer

Eur J Appl Physiol Occup Physiol. ;56(6) Force-velocity relationship and maximal power on a cycle ergometer. Correlation with the height of a. Correctly, the force-velocity relationship describes how the maximal force .. cycle ergometer measurements of force-velocity relationships and power output. On friction-loaded ergometer, maximal power corresponds to power at in power-velocity relationship during an annual training cycle has.

Introduction Maximal anaerobic power can be measured on friction-loaded cycle ergometers or isokinetic ergometers.

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Many protocols have been proposed for maximal power measurement: On friction-loaded ergometer, maximal power corresponds to power at peak velocity or is computed during the acceleration phase taking into account the power necessary to increase the flywheel kinetic energy [ 10 ]. The relationship between pedal rate and braking force or torque can be described by a linear relationship [ 35 — 911 ].

Linear force-velocity relationships have been described for all-out exercises performed on a cycle ergometer not only with the legs i. The individual characteristics of the force-velocity or torque-velocity relationship can be defined by two parameters: Maximal power corresponds to an optimal pedal rate equal to and an optimal load or torque equal to or.

Previous studies reported that [ 8 ] or peak power during a Wingate test [ 12 — 15 ] are significantly correlated with the percentage of the fast muscle fibers in the vastus lateralis.

force velocity relationship and maximal power on a cycle ergometer

Furthermore, a significant positive correlation was observed between and triceps surae musculotendinous stiffness at relative peak torque corresponding to the optimal cycling rate [ 16 ]. In rows on Fig.

force velocity relationship and maximal power on a cycle ergometer

This angle-torque pattern when cycling the other subjects, negative torques were small and neg- at high velocity was similar for cycling with and without ligible when compared with positive torques at the same toe clips even in subjects who were not cyclists. The pulling action at low velocity when cycling with toe clips cannot ex- plain why the torque-velocity relationship of cycling is not hyperbolic.

Torques were more negative at low velocities when cycling without toe clips because it was impossible to pull the cranks. At peak velocity, negative torques dur- ing cycling with toe clips Fig.

Reliability of Force-Velocity Tests in Cycling and Cranking Exercises in Men and Women

This result did not mean that the subjects did not pull the leg up during Fig. As previously observed Buttelli et al. In conclusion, the pulling action during the rise of the pedal could not explain why the torque-velocity rela- tionship was not hyperbolic for cycling exercises with toe clips because similar relationships were observed with- out toe clips.

The comparison of the angle-torque patterns at low and high velocities suggested that the kinetic energy of the legs could be transformed into power output when Discussion cycling without toe clips as well as it could when cycling with toe clips.

Force velocity relationship | S&C Research

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force velocity relationship and maximal power on a cycle ergometer

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Force velocity relationship

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