Journal of Sports Science and Medicine
Journal of Sports Science and Medicine
ISSN: 1303 - 2968   
Ios-APP Journal of Sports Science and Medicine
Androit-APP Journal of Sports Science and Medicine
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©Journal of Sports Science and Medicine ( 2019 ) 18 , 191 - 197

Research article
The Effects of Eccentric Cadence on Power and Velocity of the Bar during the Concentric Phase of the Bench Press Movement
Michal Wilk , Artur Golas, Michał Krzysztofik, Monika Nawrocka, Adam Zajac
Author Information
Department of Sports Training, the Jerzy Kukuczka Academy of Physical Education in Katowice, Poland

Michal Wilk
✉ Department of Sports Training, The Jerzy Kukuczka Academy of Physical Education in Katowice, Poland
Email: m.wilk@awf.katowice.pl
Publish Date
Received: 05-09-2018
Accepted: 31-01-2019
Published (online): 01-06-2019
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ABSTRACT

Training at a specific movement tempo is a relatively new concept in resistance training. It is based on manipulation of the duration of particular phases of a movement. General studies have demonstrated that faster movement tempo in resistance training leads to an increase in muscle power, whereas lower movement speed is beneficial in the development of muscle strength and hypertrophy. However, the studies in this area are inconclusive and do not relate precisely to various tempos and movement speeds. The aim of the study was to determine the effect of duration of the eccentric cadence ECCREG (2/0/X/0) and ECCSLO (6/0/X/0) on muscular power generated in the concentric phase of the movement expressed in maximal PMAX, VMAX and average values PAVE, VAVE. For the ECCSLO (6/0/X/0) cadence, a significantly lower value of P (401.95 ± 65.42 W) was observed compared to the ECCREG 2/0/X/0 tempo (467.65 ± 79.18 W), at p = 0.007. The same was true for power evaluated in maximal values (PMAX), as significantly higher values were recorded for the regular ECCREG (2/0/X/0) (671.55 ± 115.79 W) compared to the slow tempo ECCSLO (6/0/X/0) (565,70 ± 117,37 W), at the level of significance of p = 0.007. The velocity evaluated for ECCREG (2/0/X/0) tempo expressed in average values (VAVE) 0.60±0.09 m/s was significantly higher compared to the ECCSLO (6/0/X/0) tempo (0.52 ± 0.08 m/s), with p=0.004. When maximal velocity (VMAX), was considered higher values for ECCREG (2/0/X/0) tempo was registered (0.79 ± 0.10 m/s) compared to the ECCSLO (6/0/X/0) tempo (0.69 ± 0.13 m/s), at significance of p = 0.001. The main finding of the study indicates that the duration of the eccentric phase of the movement has a significant impact on muscular power and velocity during the concentric phase of the movement.

Key words: Resistance exercise, tempo, time under tension


           Key Points
  • Slow ECC cadence has an adverse effect on power and velocity during the CON phase of the movement.
  • Significant differences between the 2/0/X/0 and 6/0/X/0 tempos were observed for both, maximal PMAX, VMAX as well as average PAVE, VAVE values of the bench press.
  • Significance of differences were observed concerned both the first set and the second and the third set of the bench press.
  • The movement tempo or values of the ECC and CON cadences significantly impacts the efficiency of resistance training.
 
 
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