Acute Effects of Handgrip on Blood Pressure in Hypertensive Adults

Universidade Federal de Santa Catarina

Status: Completed

Conditions: Hypertension

Treatments: Other: Acute effects of handgrip exercise

Study type: Interventional

Funder types: Other

Identifiers

NCT04856553

ACUTE HANDGRIP 2021

Details and patient eligibility

About

The effect of handgrip training on blood pressure reduction has been demonstrated in several studies. However, acutely, there is still divergence regarding the effects of isometric handgrip exercise on blood pressure responses, especially when it is performed at different times of the day. It is suggested that the magnitude of blood pressure reduction after a single exercise session is able to predict long-term blood pressure behavior. Thus, understanding the effects of isometric handgrip exercise, performed at different times of the day, on blood pressure in adult hypertensive individuals acutely may help to understand the effects of this type of exercise chronically.

Enrollment: 11 patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

1. diagnosis of hypertension controlled by up to three antihypertensive medications;
2. SBP levels ≤ 180 mmHg and/or DBP ≤110 mmHg;
3. no serious heart disease;
4. no upper limb musculoskeletal injury that prevents the handgrip.

Exclusion criteria

1. diagnosis of other cardiovascular diseases or diabetes during the study;
2. change the class and/or dose of antihypertensive medication during the study;
3. worsening of the disease (BP > 180 or use of four or more medications).

Trial design

Primary purpose: Other

Allocation: Randomized

Interventional model: Crossover Assignment

Masking: Single Blind

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11 participants in 3 patient groups

Handgrip exercise (morning)

Experimental group

Description:

The handgrip exercise session will be executed with four series (two in each arm) of two minutes of isometric contraction at 30% of maximum voluntary contraction, with a one-minute interval between series in the morning.

Treatment:

Other: Acute effects of handgrip exercise

Control

No Intervention group

Description:

In the control session, the participants will remain at rest for the same period of time as in the handgrip exercise protocol.

Handgrip exercise (afternoon)

Experimental group

Description:

The handgrip exercise session will be executed with four series (two in each arm) of two minutes of isometric contraction at 30% of maximum voluntary contraction, with a one-minute interval between series in the afternoon.

Treatment:

Other: Acute effects of handgrip exercise