Metabolic and hormonal responses to different resistance training systems in elderly men

Marcos R. Paunksnis, Alexandre Lopes Evangelista, Cauê V. La Scala Teixeira, Gustavo Alegretti João, Rafael M. Pitta, Angelica C. Alonso, Aylton Figueira Jr, Andrey Jorge Serra, Julien S. Baker, Brad Jon Schoenfeld, Danilo Sales Bocalini

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Abstract

Objective: To compare acute and sub-acute responses in hormonal profile and metabolic parameters in elderly people who participated in two methods of strength training (ST) with equalized loads.
Methods and materials: A total of 12 elder individuals (65 ± 3 years) were randomly assigned to two training methods: constant intensity (CI, 3 sets of 10 repetitions with 75% of 1RM) and variable intensity (VI, 1st set: 12 repetitions at 67% of 1RM > 2nd set: 10 repetitions at 75% of 1RM and 3rd set: 8 repetitions at 80% of 1RM). Both methods included the following exercises: leg press, knee extension, and squat with 1 min rest intervals between sets. Free speed of execution and maximum range of movement were encouraged throughout each set for both protocols. Blood samples were analyzed included glucose, testosterone (T), cortisol (C), T/C rate, growth hormone (GH), and lactate at 2 and 24 h post intervention.
Results: There were no observed differences in glucose, testosterone, GH, and lactate concentrations both at 2 and 24 h after the execution of the two training methods. However, significant increases in the levels of T/C rate and decrease on cortisol were observed immediately post exercise for both protocols.
Conclusions: Although no significant differences were observed between the two interventions in relation to the hormonal and metabolic parameters analyzed, both training methods promoted a favorable response, with a slight superiority noted for the CI method relative to the hormonal profile.
Original languageEnglish
Pages (from-to)106-110
Number of pages5
JournalThe Aging Male
Volume21
Issue number2
Early online date22 Sep 2017
DOIs
Publication statusPublished - 3 Apr 2018

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Keywords

  • strength training
  • Resistance Training
  • hormones
  • pyramid
  • testosterone

Cite this

Paunksnis, M. R., Evangelista, A. L., Teixeira, C. V. L. S., João, G. A., Pitta, R. M., Alonso, A. C., ... Bocalini, D. S. (2018). Metabolic and hormonal responses to different resistance training systems in elderly men. The Aging Male, 21(2), 106-110. https://doi.org/10.1080/13685538.2017.1379489