High blood pressure. Systolic blood pressure (120-139 mmHg)
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Be resident in the cities of Petrolina / PE or Juazeiro / BA; present age between 40 and 60 years; be sedentary; (ABPM) with mean values of 24h, wakefulness or sleep greater than 125, or 110 mmHg, respectively in the systolic BP or greater than 75, or 70 mmHg, respectively in the diastolic BP, which characterizes the individual with BP elevated according to VI Brazilian Guidelines on Hypertension (2010); body mass index above 25 kg / m².
Exclusion criteria
Exclusion criteria: The BP, although elevated as highlighted in the previous item, should be controlled during resting measures performed in a laboratory environment, being lower than 160 and 105 mmHg for systolic and diastolic BP, respectively; to present systemic hypertension diagnosed; presenting cardiometabolic diseases or dysfunctions in the health history, such as musculoskeletal limitations, that may compromise physical integrity and participation in the study, mainly diseases of the cardiovascular system; make use of some type of drug related to blood pressure control during the study participation, if they use for other purposes inform the researcher; the maintenance of the proposed training frequency.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| It is hypothesized that different methods of resistance exercise cause similar effects on blood pressure and indicators of autonomic cardiac modulation. For this, blood pressure was measured at pre - exercise (REST - 15 minutes) and post exercise (REC - 30 minutes) every 5 minutes. The equipment used was digital oscillometric (Microlife, BP 3AC1-1, USA) properly validated. In addition, continuous beat-to-beat recording of R-R intervals (RRi) was performed during the REP and REC times by the Polar® RS800CX heart rate monitor (ElectroOy, Kempele, Finland) with sampling rate at 1000 Hz. RRi data were exported to a computer via Polar Pro Trainer 5 software and subsequently analyzed using Kubios HRV 3.0 software. A "medium" power filter was applied to the Kubios HRV and 5 minute windows were analyzed. The mean heart rate was obtained. Cardiac autonomic modulation was assessed by time and frequency domain indices. In the time domain the analyzed indices were: i) the absolute mean of RRi; and ii) the square root mean square sum of the differences between consecutive normal beats (rMSSD) as an indicator of vagal modulation. After the Fast Fourier Transform (FFT), the frequency domain analyzes occurred by means of the spectral power distribution. We considered: i) the Total Power (TP: ? 0.4 Hz) as an indicator of the RRi variance; ii) the low frequency band (LF: 0.04 to 0.15 Hz) expressed in absolute units (ms²) was considered a sympathetic and parasympathetic indicator, and in normalized units (u.n.) as sympathetic indicator; iii) The high frequency band (HF: 0.15 to 0.4), both in absolute units (ms²) and in standard units (u.n.) was considered a parasympathetic indicator; and iv) the LF / HF ratio as a sympathovagal balance indicator. | — |
Secondary
| Measure | Time frame |
|---|---|
| Não são esperados desfechos secundários | — |
Countries
Brazil
Contacts
Universidade Federal do vale do São Francisco