title: Similar hypotensive responses to resistance exercise with and without blood flow restriction.
abstract: Low intensity resistance exercise (RE) with blood flow restriction (BFR) has gained attention in the literature due to the beneficial effects on functional and morphological variables, similar to those observed during traditional RE without BFR, while the effects of BFR on post-exercise hypotension remain unclear. The aim of the present study was to compare the blood pressure (BP) response of trained normotensive individuals to RE with and without BFR. In this cross-over randomized trial, eight male subjects (23.8 ± 4 years, 74 ± 3 kg, 174 ± 4 cm) completed two exercise protocols: traditional RE (3 x 10 repetitions at 70% one-repetition maximum [1-RM]) and low intensity RE (3 x 15 repetitions at 20% 1-RM) with BFR. Blood pressure measurements were performed after 15 min of seated rest (0), immediately after and 10 min, 20 min, 30 min, 40 min, 50 min and 60 min after the experimental sessions. Similar hypotensive effects for systolic BP (SBP) were observed for both protocols (P < 0.05) after exercise, with no differences between groups (P > 0.05) and no statistically significant difference for diastolic BP (P > 0.05). These results suggest that in normotensive trained individuals, both traditional RE and RE with BFR induce hypotension for SBP, which is important to prevent cardiovascular disturbances.
authors.affiliation: Graduation Program on Physical Education, State University of Campinas, São Paulo, Brazil; Faculty Politec/UNIESP, Santa Bárbara D'Oeste, São Paulo, Brazil.
authors.forename: R
authors.initials: R
authors.lastname: Moriggi
authors.affiliation: Faculty Politec/UNIESP, Santa Bárbara D'Oeste, São Paulo, Brazil.
authors.forename: Hs Di
authors.initials: HD
authors.lastname: Mauro
authors.affiliation: United Metropolitan Colleges of São Paulo, São Paulo, Brazil; Faculty Politec/UNIESP, Santa Bárbara D'Oeste, São Paulo, Brasil.
authors.forename: S C
authors.initials: SC
authors.lastname: Dias
authors.affiliation: University Estácio de Sa, São Paulo, Brazil; Faculty Politec/UNIESP, Santa Bárbara D'Oeste, São Paulo, Brasil.
authors.forename: J M
authors.initials: JM
authors.lastname: Matos
authors.affiliation: Laboratory of Orofacial Pain, Division of Oral Physiology, Piracicaba Dental School, State University of Campinas, Piracicaba, São Paulo, Brazil.
authors.forename: M B
authors.initials: MB
authors.lastname: Urtado
authors.affiliation: Graduation Program on Physical Education, Catholic University of Brasília, Brasília Brazil.
authors.forename: N F
authors.initials: NF
authors.lastname: Camarço
authors.affiliation: Graduation Program on Physical Education, Catholic University of Brasília, Brasília Brazil.
authors.forename: Iv Sousa
authors.initials: IS
authors.lastname: Neto
authors.affiliation: Graduation Program on Physical Education, Catholic University of Brasília, Brasília Brazil.
authors.forename: D C
authors.initials: DC
authors.lastname: Nascimento
authors.affiliation: Graduation Program on Physical Education, Catholic University of Brasília, Brasília Brazil.
authors.forename: R A
authors.initials: RA
authors.lastname: Tibana
authors.affiliation: Human Performance Laboratory, Physical Education Department, São Paulo State University, Rio Claro, São Paulo, Brazil.
authors.forename: C O
authors.initials: CO
authors.lastname: Assumpção
authors.affiliation: Graduation Program on Physical Education, Catholic University of Brasília, Brasília Brazil.
authors.forename: J
authors.initials: J
authors.lastname: Prestes
authors.affiliation: Center for Investigation in Pediatrics, Faculty of Medical Sciences, State University of Campinas, Campinas, SP; Faculty Politec/UNIESP, Santa Bárbara D'Oeste, São Paulo, Brazil.
authors.forename: C B
authors.initials: CB
authors.lastname: Urtado
keywords: blood flow restriction; blood pressure; low intensity; resistance training