title: Changes in the Force-Velocity Mechanical Profile After Short Resistance Training Programs Differing in Set Configurations.
abstract: The main aim of this study was to analyze the effect of resistance training programs differing in set configuration on mechanical force-velocity profiles. Thirteen participants performed 10 unilateral knee extension training sessions over 5 weeks. Each limb was randomized to one of the following set configurations: traditional (4 sets of 8 repetitions at maximum intended velocity, 10RM load, 3-min pause between sets) or interrepetition rest (32 maximum intended velocity repetitions, 10RM load, 17.4 s of rest between each repetition). Velocity of each repetition was recorded throughout the program. Before and after training, individual linear force velocities were calculated, and the following parameters were obtained: force and velocity axis intercept, slope, and estimated maximum power. Mean velocity was higher throughout the program for interrepetition rest configuration (0.54 ± 0.01 vs. 0.48 ± 0.01 m∙s-1for interrepetition rest, and traditional configuration respectively; main effect of set configuration: P < .001). There was a significant increase in force and velocity intercepts, but a steeper negative slope after both training protocols (main effect of time: P < .001 for every variable). Differences in resistance training velocity did not affect the adaptations. Our results suggest that, in a short-term program, maximum intended rather than actual velocity is a key factor to modulate strength adaptations.
authors.affiliation: 1 University of A Coruna.
authors.forename: Eliseo
authors.initials: E
authors.lastname: Iglesias-Soler
authors.affiliation: 1 University of A Coruna.
authors.forename: Miguel
authors.initials: M
authors.lastname: Fernández-Del-Olmo
authors.affiliation: 1 University of A Coruna.
authors.forename: Xián
authors.initials: X
authors.lastname: Mayo
authors.affiliation: 1 University of A Coruna.
authors.forename: Juan
authors.initials: J
authors.lastname: Fariñas
authors.affiliation: 1 University of A Coruna.
authors.forename: Dan
authors.initials: D
authors.lastname: Río-Rodríguez
authors.affiliation: 1 University of A Coruna.
authors.forename: Eduardo
authors.initials: E
authors.lastname: Carballeira
authors.affiliation: 2 Translational Research Institute for Metabolism and Diabetes, Florida Hospital.
authors.forename: Elvis A
authors.initials: EA
authors.lastname: Carnero
authors.affiliation: 2 Translational Research Institute for Metabolism and Diabetes, Florida Hospital.
authors.forename: Robert A
authors.initials: RA
authors.lastname: Standley
authors.affiliation: 1 University of A Coruna.
authors.forename: Manuel A
authors.initials: MA
authors.lastname: Giráldez-García
authors.affiliation: 1 University of A Coruna.
authors.forename: Xurxo
authors.initials: X
authors.lastname: Dopico-Calvo
authors.affiliation: 1 University of A Coruna.
authors.forename: Jose Luis
authors.initials: JL
authors.lastname: Tuimil
mesh_terms: D000222:Adaptation, Physiological / Q000502:physiology*; D005260:Female; D006801:Humans; D007719:Knee Joint / Q000502:physiology; D008297:Male; D009068:Movement / Q000502:physiology*; D009119:Muscle Contraction / Q000502:physiology*; D018482:Muscle, Skeletal / Q000502:physiology*; D010809:Physical Fitness / Q000502:physiology*; D055070:Resistance Training / Q000379:methods*; D055815:Young Adult
keywords: kinetics; knee extension; power output; strength