HIIT, Cardiorespiratory Fitness, and Metabolic Health in Healthy Young Adults | NCT07719296

NCT07719296

Overview

NCT ID: NCT07719296
Lead Sponsor: High Institute of Sports and Physical Education of KefOTHER
Official Title: High-intensity Interval Training Improves Cardiorespiratory Fitness and Modestly Enhances Metabolic Health in Healthy Young Adults : a Randomized Controlled Trial
Brief Summary: The purpose of this study was to investigate the effects of a high-intensity interval training (HIIT) intervention on cardiorespiratory fitness (CRF) and cardiometabolic health in active male university students. The main question it aims to answer is: Does HIIT improves CRF and cardiometabolic outcomes, including blood pressure, lipid profile, and insulin resistance estimated using the homeostasis model assessment of insulin resistance (HOMA-IR). Researchers will compare HIIT (designed to experimental group) to non-training intervention (designed to control group) to see if the training program works to improve the cardiometabolic health status. The HIIT program consisted of three sessions per week for 9 weeks, comprising of three sets of six to eight 30-second running bouts performed at 100-110% of maximal aerobic speed (MAS), interspersed with 30-second active recovery runs at 50% MAS between bouts.

Status and Timeline

Status: Completed
Last Update Posted: Jul 23, 2026Actual
Start Date: Dec 1, 2025Actual
Primary Completion Date: Feb 16, 2026Actual
Completion Date

Participation Criteria

Ages Eligible for Study: Adult (18-64)
Sexes Eligible for Study: Male
Accepts Healthy Volunteers?: Yes
Eligibility Criteria: Inclusion Criteria:

Male university students at the High Institute of Sport and Physical Education, Kef, Tunisia.

Aged 19 to 25 years

Provided written informed consent

Exclusion Criteria:

Acute or chronic disease contraindicating vigorous physical exercise

Musculoskeletal injury or any other medical condition limiting participation in exercise

Participation in another structured training program within the previous 6 months

Current or recent (within the previous 3 months) use of medications or dietary supplements that could influence the study outcomes

Study Plan

Study Type: Interventional
Phase: Not Applicable
Enrollment: 29Actual
Primary Purpose: Prevention
Allocation: Randomized
Interventional Model: Parallel Assignment
Masking: None (Open Label)

Contacts and Locations

Central Contacts: No data available
Locations: Tunisia

Similar Studies

Participant Group/Arms

High-intensity interval training (HIIT) groupExperimental

The HIIT group performed a HIIT program consisting of three sessions per week for 9 weeks, including three sets of six to eight bouts of 30-second runs at high intensity \[100-110% of maximal aerobic speed (MAS)\], interspersed with 30-second recovery runs at low intensity (50% MAS) between bouts, in line with recommendations by Ouerghi et al. (2017, 2026) in young males.

Behavioral: High-intensity interval training (HIIT) program

Control groupNo Intervention

The participants in the control group maintained their normal daily activities.