title: Higher muscle performance in adolescents compared with adults after a resistance training session with different rest intervals.
abstract: The aim of the present study was to compare the effect of 3 different rest intervals between sets on the total training volume, number of repetitions, ratings of perceived exertion (RPE), and resistance to fatigue in adolescents and adults during a resistance training session in the isoinertial chest press exercise. Fifteen male adolescents (15.2 ± 1.2 years; 20.7 ± 2.0 kg·m(-2); Tanner -4; 61.5 ± 8.9, 10 repetition maximum [RM]) and 15 adults (22.2 ± 2.7 years; 23.3 ± 2.0 kg·m(-2); Tanner -5; 84.3 ± 13.5, 10RM) without previous experience with resistance training participated in the study. After 10RM test-retest on 3 different occasions, participants were randomly assigned to a resistance training protocol with 30-, 60-, and 120-second rest interval between sets. The protocol consisted of 3 sets with 10RM. In all studied variables, with exception to total training volume and RPE, adolescents presented superior results as compared with adults (p < 0.001). On the other hand, both adults and adolescents exhibited a higher resistance to fatigue, total training volume, and number of repetitions with a longer rest interval (120 > 60 > 30 seconds) (p < 0.01). Thus, these results indicate that adolescents present a higher recovery capacity between sets in a resistance training session than adults and a longer rest interval results in a higher number of repetitions completed, total training volume, and resistance to fatigue.
authors: Department of Physical Education, Euro-American University Center (UNIEURO)-Brasília, DF, Brazil.
authors: Ramires Alsamir
authors: RA
authors: Tibana
authors: Jonato
authors: J
authors: Prestes
authors: Dahan da Cunha
authors: Dda C
authors: Nascimento
authors: Otávio V
authors: OV
authors: Martins
authors: Frederico Santos
authors: FS
authors: De Santana
authors: Sandor
authors: S
authors: Balsamo
mesh_terms: D000293:Adolescent; D000328:Adult; D006801:Humans; D008297:Male; D018763:Muscle Fatigue / Q000502:physiology; D053580:Muscle Strength / Q000502:physiology*; D018482:Muscle, Skeletal / Q000502:physiology*; D055070:Resistance Training; D012146:Rest / Q000502:physiology*; D014891:Weight Lifting / Q000502:physiology*; D055815:Young Adult