Acute Effects of HIIT vs. MICT on HRV (MW2acute)

University Medical Centre Ljubljana

Status: Enrolling

Conditions: Myocardial Infarction

Treatments: Other: Type of Exercise

Study type: Interventional

Funder types: Other

Identifiers

NCT06437145

UKCLRehab2024/1

Details and patient eligibility

About

Heart rate variability (HRV) is impaired in patients after myocardial infarction. Most studies so far have proved chronic beneficial effects of different types of exercise on HRV parameters. Data on acute effects of different types of exercise training (e.g. high intensity interval training [HIIT] and moderate intensity continuous training [MICT]) is scarce.

Patients in the study will perform both HIIT and MICT in a random order and in-between break of at least 48 hours. A 5-minute high resolution ECG recording will be performed before and immediately after both HIIT and MICT.

Enrollment: 20 estimated patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• myocardial infarction in last 120 days
• sinus rhythm

Exclusion criteria

• contraindications for exercise training
• uncontrolled dysrhythmias
• Heart Failure NYHA IV stage
• cognitive impairment
• pregnancy

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Crossover Assignment

Masking: Single Blind

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20 participants in 2 patient groups

High intensity interval training (HIIT)

Active Comparator group

Description:

The high-intensity interval training session consists of 5-min warm-up and 5-min cool-down periods. The main part has 7 cycles. Each cycle consists of 1.5 min of 80-90% of HRpeak and 3 min of 65-70% of HRpeak.

Treatment:

Other: Type of Exercise

Moderate intensity continuous training (MICT)

Active Comparator group

Description:

The moderate-intensity continuous training session consists of 5 min warm-up and 3-min cool down period. The main part consists of 32 min of 75% of HRpeak.

Treatment:

Other: Type of Exercise