Reliability and smallest worthwhile difference in 1RM tests according to previous resistance training experience in young women

Matheus Amarante do Nascimento; Alex Silva Ribeiro; Camila de Souza Padilha; Danilo Rodrigues Pereira da Silva; Jerry L. Mayhew; Marçal Guerreiro do Amaral Campos Filho; Edilson Serpeloni Cyrino

doi:10.5114/biolsport.2017.67854

eISSN: 2083-1862
ISSN: 0860-021X

Biology of Sport

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3/2017
vol. 34

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abstract:

Original paper

Reliability and smallest worthwhile difference in 1RM tests according to previous resistance training experience in young women

Matheus Amarante do Nascimento

^{1, 2}

,

Alex Silva Ribeiro

²

,

Camila de Souza Padilha

²

,

Danilo Rodrigues Pereira da Silva

,

Jerry L. Mayhew

,

Marçal Guerreiro do Amaral Campos Filho

,

Edilson Serpeloni Cyrino

Paraná State University – UNESPAR, Paranavaí campus, Paranavaí, PR, Brazil
Metabolism, Nutrition, and Exercise Laboratory, Physical Education and Sport Center, Londrina State University, Londrina, PR, Brazil

Biol. Sport 2017;34:279-285

DOI: https://doi.org/10.5114/biolsport.2017.67854

Online publish date: 2017/10/23

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The objective of this study was to determine the familiarization and smallest worthwhile difference (SWD) of one-repetition maximum (1RM) tests in detrained women according to their previous resistance training experience. Three groups of women with varying amounts of previous resistance training experience were recruited: Novice (n = 27, 1 to 6 months), Intermediate (n = 13, from 7 to 12 months), and Advanced (n = 20, 13 to 24 months). All participants performed four 1RM test sessions in the bench press (BP), squat (SQ), and arm curl (AC). A significant (p< 0.05) (group vs. time) interaction was observed in SQ suggesting that more experienced participants needed fewer 1RM test sessions to reach a stable load compared to the less experienced groups. Strength changes (p<0.05) observed in BP and AC occurred with no significant interaction for groups (p> 0.05), suggesting that experience had no impact on familiarization for these lifts. SWDs suggest that strength gains greater than 2-4% in these lifts would indicate a meaningful improvement in strength beyond random variation from trial to trial no matter the experience of the subject. Women with limited previous resistance training experience do not require more trials to reach load stabilization than those with more experience. Stability of 1RM loads for BP and AC may require only two sessions, while SQ may require at least three trials.

keywords:

Reliability and smallest worthwhile difference in 1RM tests according to previous resistance training experience in young women

Matheus Amarante do Nascimento 1, 2 , Alex Silva Ribeiro 2 , Camila de Souza Padilha 2 , Danilo Rodrigues Pereira da Silva , Jerry L. Mayhew , Marçal Guerreiro do Amaral Campos Filho , Edilson Serpeloni Cyrino

Muscle strength, Exercise evaluation, Reliability, Neural learning, Female

Matheus Amarante do Nascimento

^{1, 2}

,

Alex Silva Ribeiro

²

,

Camila de Souza Padilha

²

,

Danilo Rodrigues Pereira da Silva

,

Jerry L. Mayhew

,

Marçal Guerreiro do Amaral Campos Filho

,

Edilson Serpeloni Cyrino