Vol 15, Issue 2

Influence of resistance training exercise order on acute thyroid hormone responses

February 15, 2022 - By 

Authors

José Maria Pereira da Silva, University of Rio de Janeiro
Gabriel Costa e Silva, Colégio Pedro II
Rodrigo Rodrigues da Conceição, Universidade Federal de Sao Paulo
Roberto Laureano-Melo, Universidade de Barra Mansa
Gisele Giannocco, Universidade Federal de São Paulo
Monica Akemi Sato, Faculdade de Medicina do ABC
Cláudio Melibeu Bentes, Federal Rural University of Rio de Janeiro
Roberto Fares Simão, Federal University of Rio de Janeiro
International Journal of Exercise Science 15(2): 760-770, 2022.
DOI: 10.70252/LBUF2777

Abstract

The present study aimed to compare the exercise order of an acute bout of resistance exercise (RT) on acute thyroid hormonal responses. Eight (n = 8) healthy men were randomly separated into two experimental groups: A) the order from multi- to single-joint exercises (MJ-SJ) and B) the order from single- to multijoint exercises (SJ-MJ). For all exercises in both orders, the subjects were submitted to 3 sets of 10 repetitions, with rest intervals of 2 minutes between sets and 3 minutes between exercises. Blood samples were collected at rest and 0, 15, 30, 60 and 120 min after the end of the exercise session. In thyroid-stimulating hormone (TSH), differences between groups (MJ-SJ < SJ-MJ) were observed within 15 minutes after the session. In 3,5,3’-triiodothyronine (T3), differences between groups were observed between 30 (MJ-SJ > SJ-MJ) and 120 minutes (MJ-SJ < SJ-MJ) after the session. In 3,5,3’,5’-tetraiodothyronine (T4), differences between groups (MJ-SJ > SJ-MJ) were observed within 15 minutes after the RT session. The order of RT exercises significantly changes the hormonal responses of TSH, T3 and T4. In addition, the exercise order should be chosen according to the individual’s objectives.

Recommended Citation