Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

High 1RM Tests Reproducibility and Validity Are Not Dependent on Training Experience, Muscle Group Tested or Strength Level in Older Women

Matheus Barbalho
* ,
Paulo Gentil
ORCID logo ,
Rodolfo Raiol
,
Fabrício Boscolo Del Vecchio
,
Rodrigo Ramirez-Campillo
ORCID logo ,
Victor Silveira Coswig
ORCID logo
Version 1 : Received: 18 November 2018 / Approved: 19 November 2018 / Online: 19 November 2018 (11:58:41 CET)

A peer-reviewed article of this Preprint also exists.

Barbalho, M.; Gentil, P.; Raiol, R.; Del Vecchio, F.B.; Ramirez-Campillo, R.; Coswig, V.S. High 1RM Tests Reproducibility and Validity are not Dependent on Training Experience, Muscle Group Tested or Strength Level in Older Women. Sports 2018, 6, 171. Barbalho, M.; Gentil, P.; Raiol, R.; Del Vecchio, F.B.; Ramirez-Campillo, R.; Coswig, V.S. High 1RM Tests Reproducibility and Validity are not Dependent on Training Experience, Muscle Group Tested or Strength Level in Older Women. Sports 2018, 6, 171.

Abstract

Background: The maximal one-repetition test (1-RM) is widely used in scientific research; however, there are conflict results regarding its reproducibility in elderly population. The present study aimed to analyze the reproducibility the test both before and after a 12 week training period by using the bench press and leg press 45° 1-RM tests in the elderly taking into consideration the training experience and strength level of the women. Methods: Elderly women (n = 376; age, 68.5 ± 14.1 years; height, 162.7 ± 5.5 cm; body mass, 71.2 ± 16.0 kg) who underwent ≥3 months of resistance training performed an initial week of familiarization and a second week of testing and retest, with a 48–72 hour interval. Results: The results showed maximal and relative load strength of 39.3 kg and 0.59 kg/body mass for lower limbs and 20.9 kg and 0.31 kg/body mass for upper limbs. The Kappa indices were 0.93 and 0.95, and the intraclass correlation coefficients were 0.99 and 0.99 for the lower and upper limbs, respectively. Conclusion: Therefore, the present study confirms that the 1-RM test has high reliability and reproducibility in the elderly, for both upper and lower limbs.

Keywords

resistance training; strength test; muscle strength; older women

Subject

Medicine and Pharmacology, Orthopedics and Sports Medicine

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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