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Open AccessArticle

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

1
Faculdade de Educação Física e Dança, Universidade Federal de Goiás, Goiânia 74690-900, Brazil
2
Centro de Ciências Biológicas e da Saúde, Centro Universitário do Pará, Belém 66040-020, Brazil
3
Escola Superior de Educação Física, Universidade Federal de Pelotas, Pelotas 96055-630, Brazil
4
Laboratory of Human Performance, Quality of Life and Wellness Research Group, Department of Physical Activity Sciences, Universidad de Los Lagos, Osorno 1305, Chile
5
Faculdade de Educação Física, Universidade Federal do Pará, Castanhal 68746-630, Brazil
*
Author to whom correspondence should be addressed.
Sports 2018, 6(4), 171; https://doi.org/10.3390/sports6040171
Received: 18 November 2018 / Revised: 4 December 2018 / Accepted: 7 December 2018 / Published: 11 December 2018
Background: The maximal one-repetition test (1-RM) is widely used in scientific research; however, there are conflicting results regarding its reproducibility in elderly populations. The present study aimed to analyze the reproducibility of 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 h interval. Results: The results showed that Kappa indices ranged from 0.93 to 0.95, and the intraclass correlation coefficients were 0.99 for both the lower and upper limbs. In addition, minimal detectable changes were found that ranged between 1 and 3%, which means that changes lower than 1 kg could be detected. Conclusion: The present study confirms that the 1-RM test has high reliability and reproducibility in the elderly, for both upper and lower limbs. View Full-Text
Keywords: resistance training; strength test; muscle strength; older women resistance training; strength test; muscle strength; older women
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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.

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