Cardiac Autonomic Recovery After a Single Session of Resistance Exercise With and Without Vascular Occlusion

Abstract

The aim of this study was to investigate the heart rate variability (HRV) following resistance training with and without vascular occlusion. It was hypothesized that low intensity with vascular occlusion would elicit comparable post-exercise HRV responses to that of high intensity without vascular occlusion. Nine subjects undertook four experimental sessions of leg press exercise on different days: 1) one repetition maximum (1RM) test, 2) 4 sets of 8 repetitions + one set until exhaustion at 80% of 1RM without vascular occlusion (HI), 3) 4 sets of 16 repetitions + one set until exhaustion at 40% of 1RM with vascular occlusion (LIO), and 4) 4 sets of 16 repetitions + one set with the number of repetition equal to the last set of LIO but at 40% of 1RM without vascular occlusion (LI). HRV was analyzed 10min, 20min, 30min, 1h, 5h and 24h after HI, LIO and LI sessions. The HI session increased heart rate (HR) and reduced the root mean square of successive difference of R-R intervals (RMSSD) and log-transformed high frequency (lnHF) power during prolonged recovery (HR=5h; RMSSD=30 min; lnHF=1h) at a greater magnitude when compared with LIO and LI. Despite the same intensity of exercise for LIO and LI, the occlusion delayed the recovery of HR and HRV variables. Post-exercise blood lactate concentration was moderate to strongly correlated with peak HR (r=0.87), RMSSD (r=-0.64) and lnHF (r=-0.68). The present study has demonstrated that LIO was able to reduce cardiac autonomic stress when compared with HI.

Hemodynamic responses to strength exercise with blood flow restriction during different phases of the menstrual cycle

“…The primary results of the present study were as follows: i) the three groups exhibited increased SBP, HR and DP but did not exhibit differences on SpO2; ii) the LL and LL+BFR treatments resulted in greater hemodynamic increases compared with the HI treatment; and iii) the phases of the MC seem to influence only HR and DP. Nonetheless, we observed a significant increase in SBP, HR and DP among the three exercise groups, and between the few studies that evaluated these variables after RE with BFR (Araújo et al, 2014;Brandner, Kidgell, & Warmington, 2015;Neto et al, 2016;Okuno et al, 2014), two corroborate with our findings (Brandner et al, 2015;Neto et al, 2016). These authors reported increased SBP, DBP and MBP (Brandner et al, 2015) and HR and DP (Brandner et al, 2015;Neto et al, 2016) immediately after LL with BFR and after LL and HI exercises.…”

“…With respect to the greater increase in hemodynamics in the LL and LL+BFR groups when compared with the HI group, four studies disagree with our findings Okuno et al, 2014;Poton & Polito, 2016, 2015, and one corroborates with our findings (Araújo et al, 2014). In this context, we observed that the hemodynamics seem to significantly increase the HI protocol when compared with LL or LL+BFR in men.…”

“…Some studies evaluated the acute effects of resistance exercises with BFR on systolic blood pressure (SBP), diastolic blood pressure (DBP), mean blood pressure (MBP), heart rate (HR), double product (DP) (Araújo et al, 2014;Neto et al, 2015;Neto et al, 2016;Okuno, Pedro, Leicht, Ramos, & Nakamura, 2014;Rossow et al, 2012;Rossow et al, 2011;Takano et al, 2005;Vieira, Chiappa, Umpierre, Stein, & Ribeiro, 2013) and oxygen saturation (SpO2) (Neto et al, 2016). However, no studies have evaluated these variables after sessions of resistance exercitation with BFR performed during the MC phases (follicular, ovulatory and luteal).…”

Acute resistance exercise with blood flow restriction effects on heart rate, double product, oxygen saturation and perceived exertion

“…Several studies have evaluated the acute effects of RE with BFR in isolated arms or legs on physiological variables, such as heart rate (Takano et al ., ; Renzi et al ., ; Kacin & Strazar, ; Okuno et al ., ; Vieira et al ., ), double product (DP) (Renzi et al ., ; Vieira et al ., ) and perceived exertion (Wernbom et al ., ; Loenneke et al ., ,b, ; Mendonca et al ., ; Thiebaud et al ., ; Vieira et al ., ). However, no studies have evaluated these variables using agonist–antagonist exercises in upper and lower body RE sessions with BFR.…”

Acute effect of aerobic exercise with blood flow restriction on blood pressure and heart rate in healthy young subjects

“…As pesquisas mostram sua eficácia sobre variáveis neuromusculares, como os ganhos de força e hipertrofia muscular (Pearson & Hussain, 2015), hormonais (Inagaki, Madarame, Neya, & Ishii, 2011), metabólicas (Burgomaster et al, 2003;Fujita et al, 2007), hemodinâmicas (Araújo et al, 2014;Brandner, Kidgell, & Warmington, 2014;Neto et al, 2015;Neto et al, 2016;Okuno, Pedro, Leicht, Ramos, & Nakamura, 2014;Rossow et al, 2011;Vieira, Chiappa, Umpierre, Stein, & Ribeiro, 2013) e complacência arterial (Iida et al, 2011;Iida et al, 2005).…”