Arterial Hypertension
Conditions
Brief summary
International recommendations advocate dynamic or isometric strength training as an adjunct to aerobic exercise. Due to a lack of consensus, this research addresses the acute effects of isometric exercises by handgrip or lower limb isometry as a hypotensive strategy in hypertensive adults.
Detailed description
This study is characterized as a randomized, controlled and blinded clinical trial for the evaluators and carried out integrally in the Laboratory of Clinical Investigation (LIC) of the Cardiology Institute of Rio Grande do Sul / University Foundation of Cardiology (ICFUC). The project follows all recommendations proposed by the CONSORT Statement. The study will consist of individuals of both genders, aged between 40 and 70 years who have blood pressure above 120mmhg by 80mhg. The participants, after signing the informed consent, answered a questionnaire that will evaluate the habitual level of physical activity and will be submitted to isometric exercises of palmar grip or quadriceps muscle. Pre- and post-exercise blood pressure will be monitored through the ambulatory blood pressure monitoring (ABPM) method.
Interventions
Isometric session with handgrip: 4 sets of 2 minutes of contractions sustained at 30% of CVM, for each arm. The time between sets and between arms will be 1 minute rest.
OTHERisometric of the lower limbs
Isometric session for lower limbs: 4 sets with 2 minutes of contractions sustained at 30% of 1RM. The rest interval will be 1 minute rest.
Sponsors
Instituto de Cardiologia do Rio Grande do Sul
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
40 Years to 70 Years
Healthy volunteers
No
Inclusion criteria
* Controlled hypertensive patients (use of medication) sedentary or physically inactive
Exclusion criteria
* Pregnant women; * Unstable angina; * Class II, III or IV heart failure; * Recent cardiovascular event (last 3 months); * Chronic renal insufficiency; * Diabetes; * History of malignant diseases with life expectancy \<2 years; * Or Orthopedic limitations or any physical or mental limitation that impedes the performance of physical exercises.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| blood pressure | 48 hours | Blood pressure will be evaluated by Ambulatory Blood Pressure Monitoring (ABPM) over 24h. For that, a Dyna-Map® branded instrument will be used, which will measure blood pressure on rest condition and another measure after the exercise session (totaling 48 horas), in all participants of the two study groups. |
Countries
Brazil
Contacts
Primary ContactPatrícia Caetano, graduate
Backup ContactAlexandre Lehnen, PHD
Outcome results
None listed