Affiliations: [a] Postgraduate Program in Biomedical Science, State University of Ponta Grossa, Ponta Grossa, PR, Brazil | [b] Department of Physical Education, State University of Ponta Grossa, PR, Brazil
Correspondence:
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Corresponding author: Amanda Cristiane de Araújo, Postgraduate Program in Biomedical Science, State University of Ponta Grossa, Campus Uvaranas, Block M, Av. Carlos Cavalcanti, 4748 Paraná, ZIP-code: 84030-900, Brazil. Tel.: +55 42 3220 300; E-mail:amanda.cristiane@outlook.com
Abstract: OBJECTIVE: The aim of this study was to analyze and compare heart
rate (HR), rating of perceived exertion (RPE) response, and peak blood
lactate concentration ([lac]-peak) after a resistance exercise session with
and without vascular occlusion. METHODS: Eight male subjects with previous experience in resistance
training (23.38 ± 2.38 years; weight 76.75 ± 8.79 kg; height 1.75 ± 0.07 m) took part in this study. After performing a one repetition maximum
(1RM) test, the subjects underwent three random sessions in the leg press
exercise: (a) 4 sets of 8 repetitions + 1 set until exhaustion at 80% of
1RM without vascular occlusion (HI); (b) 4 sets of 16 repetitions + 1 set
until exhaustion at 40% of 1RM with occlusion (LIO) and (c) 4 sets of 16
repetitions + 1 set with the same number of repetitions as LIO at 40% of
1RM without vascular occlusion (LI), in both legs alternately. RESULTS: It was observed that both HR and RPE were lower during
almost all sessions when compared with HI (p< 0.05). In the LI session, both
variables were initially similar in comparison with LIO, differentiating
during the session (p< 0.05). The [lac]-peak in LIO was lower than HI, but
higher than LI (p< 0.001). The correlations between RPE and HR (r= 0.88), RPE
and [lac]-peak (r= 0.75), and HR and [lac]-peak (r= 0.84) were all strong. CONCLUSION: Resistance training associated with vascular occlusion
causes lower physiological and perceived stress in comparison with
conventional high intensity strength training.
