title: Effects of pre-exhausting the biceps brachii muscle on the performance of the front lat pull-down exercise using different handgrip positions.
abstract: The aim of the present study was to investigate the effects of pre-exhaustion (PE) of the biceps brachii muscle (BB) on the number of repetitions and the rate of perceived exertion (RPE) in the front lat pull-down (FLPD) using different handgrip positions. Additionally, the effect of sex and its interaction with performance and the RPE were also examined. The participants were 19 healthy subjects: 8 men (age: 27.13±2.85 years; body height: 180.63±6.65 cm; body mass: 82.05±8.92 kg; and body fat: 14.67±6.09%); and 11 women (age: 28.81±3.68 years; body height: 162.91±6.51 cm; body mass 59.63±6.47 kg; and body fat: 24.11±4.33%). The number of repetitions and the RPE in the FLPD exercise with different handgrip positions, with and without PE of the BB, was documented. The following main significant effects were seen: i) PE of the BB decreased the number of repetitions (p<0.001) and increased the RPE (p<0.001); ii) the narrow handgrip width elicited a higher RPE (p<0.001) and iii) women performed fewer repetitions than men in all FLPD exercise variations (p=0.023). Significant interactions were also observed between: i) PE or sex and the RPE (p=0.024); and ii) PE or handgrip width and the number of repetitions (p<0.001). In conclusion, PE of the BB promotes a decreased performance in the FLPD exercise along with a greater RPE, especially when using a narrow handgrip position.
authors.affiliation: University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal. ; Research Center for Sport, Health and Human Development (CIDESD), Vila Real, Portugal.
authors.forename: José
authors.initials: J
authors.lastname: Vilaça-Alves
authors.affiliation: University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal.
authors.forename: Lurdes
authors.initials: L
authors.lastname: Geraldes
authors.affiliation: University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal. ; Research Center for Sport, Health and Human Development (CIDESD), Vila Real, Portugal.
authors.forename: Helder M
authors.initials: HM
authors.lastname: Fernandes
authors.affiliation: University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal. ; Research Center for Sport, Health and Human Development (CIDESD), Vila Real, Portugal.
authors.forename: Luís
authors.initials: L
authors.lastname: Vaz
authors.affiliation: University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal. ; Estácio de Sá University, Petrópolis, Rio de Janeiro, Brazil.
authors.forename: Renato
authors.initials: R
authors.lastname: Farjalla
authors.affiliation: University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal. ; Research Center for Sport, Health and Human Development (CIDESD), Vila Real, Portugal.
authors.forename: Francisco
authors.initials: F
authors.lastname: Saavedra
authors.affiliation: University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal. ; Research Center for Sport, Health and Human Development (CIDESD), Vila Real, Portugal.
authors.forename: Victor M
authors.initials: VM
authors.lastname: Reis
keywords: biceps brachii; front lat pull-down; handgrip width; perceived exertion; resistance training