NCT04075253

Acute Effect of One Single Bout of High Intensity Exercise on the Tendency for Ventricular Arrhythmia

Acute Effect of One Single Bout of High Intensity Exercise. A Substudy of the Study on Physical Activity and Ventricular Arrhythmias

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 55 (actual)
• Sponsor: St. Olavs Hospital · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

This study will evaluate the acute effect of one single bout of high intensity exercise on the tendency for ventricular arrhythmia.

Detailed description

This study is a substudy of a planned study involving participants with an implantable cardioverter defibrillator (ICD), who will be randomly assigned to either take part in a exercise program for 12 weeks or serve as control and live as usual (Clinical Trials Unique Protocol ID: 2018/1592). In that study all participants will complete an exercise treadmill test to determine maximum oxygen uptake (VO2 peak). In this study we wish to examine the acute effect of one single bout of high intensity exercise (i.e the VO2 peak test) on the tendency for ventricular arrhythmia. The study will evaluate changes in ICD-parameters and the number of premature ventricular contractions the first 24 hours after VO2 peak testing compared to the average number of the 48 hours prior to the test. The study will also examine if the acute effect after VO2 peak testing alters after completing 12 weeks of aerobic interval training or control respectively.

Conditions

• Tachycardia, Ventricular
• Defibrillators, Implantable

Interventions

Type	Name	Description
BEHAVIORAL	VO2 peak testing	Exercise on treadmill starts with \~4km/h at 0% inclination before inclination is increased to 4% and speed kept unchanged. Inclination will then be increased with two percent approximately after each minute until exhaustion.

Timeline

• Start date: 2019-09-02
• Primary completion: 2022-09-02
• Completion: 2022-09-02
• First posted: 2019-08-30
• Last updated: 2023-04-26

Locations

1 site across 1 country: Norway