Sex and Exercise-mode Differences in Post Exercise Blood Pressure and Heart Rate Variability Responses During Workday

Study Overview
=================
Brief Summary
-----------------
The present study compared the acute effects of Sex and exercise mode on subsequent blood pressure (BP) and heart rate variability (HRV) responses during daily work in healthy adults. All subjects did 3 sessions: aerobic exercise on a treadmill, resistance exercise at the gym and a seated control session.

Detailed Description
-----------------
Resting blood pressure and heart rate variability are simple and non-invasive methods to evaluate cardiovascular risk after different exercise sessions. Thus, exercise can reduce these risk factors in the short and long term, but these responses can be different between sex in different exercise sessions.

Official Title
-----------------
Sex and Exercise-mode Differences in Post Exercise Blood Pressure and Heart Rate Variability Responses During Workday

Conditions
-----------------
Hemodynamic, Exercise

Intervention / Treatment
-----------------
* Other: Aerobic exercise
* Other: Resistance exercise
* Other: Control session


Participation Criteria
=================
Eligibility Criteria
-----------------
Inclusion Criteria: Able to practice aerobic and resistance exercise at moderate intensity; Men and women; Normotensive, pre-hypertensive or hypertensive stage 1. Exclusion Criteria: Renal pathologies; Using beta blockers; History of stroke or acute myocardial infarction; Smokers.

Ages Eligible for Study
-----------------
Minimum Age: 28 Years
Maximum Age: 54 Years

Sexes Eligible for Study
-----------------
All

Accepts Healthy Volunteers
-----------------
Accepts Healthy Volunteers

Study Plan
=================
How is the study designed?
-----------------

Design Details

Primary Purpose: Prevention
Allocation: Randomized
Intervention Model: Crossover Assignment
Interventional Model Description: 20 healthy adults, public servants (9W and 11M), randomly underwent three experimental sessions in early morning prior to their work routine: a circuit resistance session at 40% of 1RM, a treadmill exercise session at 60-70% of heart rate reserve and a resting control session.
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Men<br>11 men randomly underwent three experimental sessions in early morning prior to their work routine. | Other: Aerobic exercise<br>* 30 minutes of treadmill exercise at 60-70% of heart rate reserve<br>Other: Resistance exercise<br>* 30 minutes of circuit resistance session at 40% of 1 maximun repetition test<br>Other: Control session<br>* 30 minutes seated resting<br>|
| Experimental: Women<br>9 women randomly underwent three experimental sessions in early morning prior to their work routine. | Other: Aerobic exercise<br>* 30 minutes of treadmill exercise at 60-70% of heart rate reserve<br>Other: Resistance exercise<br>* 30 minutes of circuit resistance session at 40% of 1 maximun repetition test<br>Other: Control session<br>* 30 minutes seated resting<br>|

What is the study measuring?
-----------------
Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Resting blood pressure | During all sessions, systolic (SBP) and diastolic blood pressure (DBP) were triplicate measured by an automatic blood pressure analyzer after rest in seated position. | Change from baseline Systolic and Diastolic Blood Pressure to 15, 30, 45, 60, 210, 360 and 540 minutes after exercise/control session | 
| Heart Rate Variability | The HR was recorded by a heart rate monitor (sampling frequency = 1000Hz) in a beat-by-beat basis. HR was registered in a seat position during 15 minutes for each measure. | Change from baseline Heart Rate Variability components to 15, 30, 45 and 60 minutes after exercise/control session | 

 Terms related to the study
=================
Keywords Provided by Centre Hospitalier Valida
-----------------
Aerobic Exercise, Resistance Exercise, Autonomic Stress, Heart Rate Variability, Sex difference, Post-exercise hypotension