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Journal of Strength & Conditioning Research:
doi: 10.1519/JSC.0b013e31822dfefb
Original Research

Higher Muscle Performance in Adolescents Compared With Adults After a Resistance Training Session With Different Rest Intervals

Tibana, Ramires Alsamir1,2,4; Prestes, Jonato3,4; Nascimento, Dahan da Cunha1,4; Martins, Otávio V1,4; Santana, Frederico Santos De1,4; Balsamo, Sandor1,3,4

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Abstract

Abstract: Tibana, RA, Prestes, J, da Cunha Nascimento, D, Martins, OV, de Santana, FS, and Balsamo, S. Higher muscle performance in adolescents compared with adults after a resistance training session with different rest intervals. J Strength Cond Res 26(4): 1027–1032, 2012—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·m2; Tanner −4; 61.5 ± 8.9, 10 repetition maximum [RM]) and 15 adults (22.2 ± 2.7 years; 23.3 ± 2.0 kg·m2; 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.

© 2012 National Strength and Conditioning Association

 

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