Application of force-velocity cycle ergometer test and vertical jump tests in the The maximal theoretical force (F(0)) and velocity (V(0)), the maximal power output derived from both the force -- velocity and the power -- velocity relationships. The force-velocity relationship on a Monark ergometer and the vertical jump height have been studied in subjects practicing different athletic activities ( sprint. On friction-loaded ergometer, maximal power corresponds to power at in power-velocity relationship during an annual training cycle has.
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Force velocity relationship
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Discussion Based on previous studies Rouis et al. Indeed, the results of the multiple linear regression analysis showed that, for a given value of Pmax, the Afro-Caribbean participants jumped on average 8 cm higher than the Caucasians.
However, the results of the present study showed no practice effect. Indeed, the results of the ANOVA showed neither a session effect nor an interaction between the session and ethnicity in all dependent variables i. Test-retest correlation coefficients, standard errors of estimation and intraclass correlation coefficients showed very high reliability between each session for both the Pmax and VJ performances and for both ethnic groups.
Combined, these results demonstrated that neither the Caucasian nor Afro-Caribbean participants improved their performance in jumping and cycling, respectively.
Reliability of Force-Velocity Tests in Cycling and Cranking Exercises in Men and Women
Numerous studies in the field of physiology have highlighted morphological Malina, ; Nelson et al. Specifically, it has been demonstrated that Afro-Caribbean sedentary men and athletes have a higher percentage of fast twitch fibers and muscle stiffness than their Caucasian counterparts Ama et al.
Furthermore, it has been demonstrated that vertical jump height and maximal power are positively correlated with the percentage of fast fibres Glenmark et al. Recently, some authors reported specific anatomical properties such as greater tendon length of the lower limbs in Afro-Caribbean subjects compared to Caucasian subjects Kunimasa et al.
Force velocity relationship | S&C Research
Indeed, the greater tendon length may positively contribute to the output from the muscle tendon complex in a stretch shortening cycle during jumping with prestretch and this feature could be responsible for better vertical jump performance in the Afro-Caribbean participants.
Therefore, although the present study did not focus on these parameters, it could be assumed that better jumping and cycling performances observed in the Afro-Caribbean group compared with the Caucasian one might stem from these constitutional differences. The reliability of maximal powermaximal pedal rateand maximal force were studied using the coefficient of variation CVthe intraclass correlation coefficient ICC and the test-retest correlation coefficient.
Reliability indices were better for men 1. Furthermore, the reliability indices were high for and whatever the expression of the results raw data or data related to body dimensions. However, further studies are needed to judge reliability. Introduction Maximal anaerobic power can be measured on friction-loaded cycle ergometers or isokinetic ergometers. 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.