Resistance Exercise Modify Cardiovascular Responses of Professors During Teaching and Sleep

NCT02650089 | Completed DMC

• 1 other identifier: UFSaoFrancisco1
• Study Type: interventional
• Target: 10
• Locations: 0 countries
• Sites: N/A

Brief Summary

Both work activity and reduced nocturnal dipping of blood pressure are related to increased cardiovascular risk. The aim of the present study was to assess the hemodynamic and autonomic responses of university professors during teaching and sleeping times after different resistance exercise intensities. Ten normotensive professors (33.6±3.4 years, 82.4±12.4 kg; 177.0±7.5 cm) randomly underwent control and resistance exercise before initiating their daily activities. Resistance exercise consisted of a circuit training lasting 40min at 40% and 80% of one repetition maximum test. Systolic blood pressure and diastolic blood pressure as well as heart rate variability indicators in the time and frequency domains (Low Frequency, High Frequency, Low Frequency:High Frequency ratio) were evaluated on resting and 24 hours after the sessions. The average day-time, night-time and nocturnal blood pressure fall of systolic blood pressure and diastolic blood pressure were calculated.

Conditions

Post-Exercise Hypotension

Keywords

Resistance Exercise; Postexercise Hypotension; Sympathovagal balance; Professor

Outcome Measures

Primary Outcomes (1)

• Blood pressure response to resistance exercise of different intensities during teaching period.

  24 hours

Secondary Outcomes (1)

• Blood pressure response to resistance exercise of different intensities during sleep period.

  6 hours

Study Arms (3)

Resistance Exercise Low intensity

EXPERIMENTAL

The 40% one maximum repetition resistance exercise session lasted 40 minutes. Three circuits with 7 exercises, 16 repetitions were performed for each exercise, with an interval of 60 seconds between exercises and 120 seconds between circuits. The duration of repetition in the exercises was 3 seconds - 1 second in the concentric phase and 2 seconds in the eccentric phase of the movement.

Other: Resistance Exercise Low intensity

Resistance Exercise High intensity

EXPERIMENTAL

The 80% one maximum repetition resistance exercise session lasted 40 minutes. Three circuits with 7 exercises, 8 repetitions were performed for each exercise, with an interval of 90 seconds between exercises and 120 seconds between circuits. The duration of repetition in the exercises was 3 seconds - 1 second in the concentric phase and 2 seconds in the eccentric phase of the movement.

Other: Resistance Exercise High intensity

Control

OTHER

In the control session, the participants remained seated in a comfortable chair in the same environment of the resistance exercise sessions.

Other: Control

Interventions

Resistance Exercise Low intensity OTHER

The 40% one maximum repetition resistance exercise session lasted 40 minutes. Three circuits with 7 exercises, 16 repetitions were performed for each exercise, with an interval of 60 seconds between exercises and 120 seconds between circuits. The duration of repetition in the exercises was 3 seconds - 1 second in the concentric phase and 2 seconds in the eccentric phase of the movement.

Resistance Exercise Low intensity

Resistance Exercise High intensity OTHER

The 80% one maximum repetition resistance exercise session lasted 40 minutes. Three circuits with 7 exercises, 16 repetitions were performed for each exercise, with an interval of 60 seconds between exercises and 120 seconds between circuits. The duration of repetition in the exercises was 3 seconds - 1 second in the concentric phase and 2 seconds in the eccentric phase of the movement.

Resistance Exercise High intensity

Control OTHER

In the control session, the participants remained seated in a comfortable chair in the same environment of the resistance exercise sessions.

Control

Eligibility Criteria

• Age: 30 Years - 40 Years
• Sex: male
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

You may qualify if:

• Being healthy university professor;
• Teach classes at night;
• Physically active.

You may not qualify if:

• Hypertension;
• Cardiovascular disease;
• Obesity;
• Smoking or drug use that could affect the cardiovascular responses during the study;
• Joint, bone or muscle problems that could limit the execution of the experimental sessions;
• Not complying with the recommendations during the study.

Sponsors & Collaborators

• Universidade Federal do vale do São Francisco: lead

MeSH Terms

Conditions

Post-Exercise Hypotension

Condition Hierarchy (Ancestors)

Orthostatic Intolerance; Primary Dysautonomias; Autonomic Nervous System Diseases; Nervous System Diseases; Hypotension; Vascular Diseases; Cardiovascular Diseases

Study Officials

• Alfredo Anderson Teixeira-Araujo

  Federal University of Vale do São Francisco

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: NONE
• Intervention Model: CROSSOVER
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Principal Investigator

Study Record Dates

• First Submitted: December 31, 2015
• First Posted: January 8, 2016
• Study Start: July 1, 2013
• Primary Completion: July 1, 2014
• Study Completion: July 1, 2014
• Last Updated: January 8, 2016

Record last verified: 2016-01

Data Sharing

• IPD Sharing: Will not share