Effects of Eccentric Phase Velocity on Bench Press Concentric Bar
                    Velocity in the Young and Elderly

Antenor Calandrini; Eduardo Macedo Penna; Elren Passos Monteiro; Daniel Boullosa; Victor Silveira Coswig

doi:10.1055/a-2235-1694

International Journal of Sports Medicine, Table of Contents

Int J Sports Med 2024; 45(05): 369-376
DOI: 10.1055/a-2235-1694

Training & Testing

Effects of Eccentric Phase Velocity on Bench Press Concentric Bar Velocity in the Young and Elderly

Antenor Calandrini

¹Programa de Pós-graduação em Ciências do Movimento Humano, Universidade Federal do Pará – Campus Castanhal, Castanhal, Brazil

,

Eduardo Macedo Penna

¹Programa de Pós-graduação em Ciências do Movimento Humano, Universidade Federal do Pará – Campus Castanhal, Castanhal, Brazil

,

Elren Passos Monteiro

¹Programa de Pós-graduação em Ciências do Movimento Humano, Universidade Federal do Pará – Campus Castanhal, Castanhal, Brazil

,

Daniel Boullosa

²Faculty of Sports Sciences and Physical Activity, Universidad de León, León, Spain

,

Victor Silveira Coswig

³Instituto de Educação Física e Esportes, Universidade Federal do Ceará, Fortaleza, Brazil

› Author Affiliations

Abstract

This study aimed to investigate the impact of bar velocity during the eccentric phase on subsequent concentric performance in the young and elderly. Twelve elderly women (65.2+4.2 years) and 16 young women (23.1+2.1 years) were randomly assigned to four experimental conditions that combined high-velocity eccentric actions (HV_ECC; maximum velocity) and moderate-velocity eccentric actions (MV_ECC; 2.0 s), using 30% and 60% of their 1-repetition maximum (1RM) on the Smith machine bench press. Measurements of mean propulsive velocity (MPV), peak velocity (PV), and mean power (MP) were recorded. Two-way ANOVA with repeated measures was applied for each variable, when needed, the Bonferroni post hoc was used. Statistical significance was set at p<0.05, and effect size (ES) was established by Cohen’s d _z. The results demonstrated that elderly women showed improved performance in MPV (+10.0%; ES=− 0.58; p=0.009) and MP (+11.7%; ES=− 0.14; p=0.045) when utilizing HV_ECC at 30% 1RM only. Moreover, young women exhibited superior performance for both 30% and 60% 1RM when using HV_ECC for all variables analyzed (p<0.05). The HV_ECC appears to have an impact on the subsequent performance of the concentric phase, particularly when lighter loads (30% 1RM) are utilized, regardless of the age group.

Key words

resistance training - elderly - exercise - muscle strength

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References

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