NCT03376906

The Effects of High Intensity Interval Exercise in Obese

The Effects of High Intensity Interval Exercise With 1- and 3- Min Recovery Times in Obese

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 12 (actual)
• Sponsor: Federal University of Paraíba · Academic / Other
• Sex: All
• Age: 18 Years – 40 Years
• Healthy volunteers: Not accepted

Summary

Obesity is a complex and multifactorial disease. Excess weight is related to endothelial dysfunction, inflammation and oxidative stress which increases the risk for cardiovascular diseases. High-intensity interval exercise can release vasodilatory substances and promote increased muscle blood flow.

Detailed description

This study evaluated the effects of the recovery interval duration (1 vs. 3 min) in high intensity interval exercise (HIIE) on the hemodinamics responses in obese individuals. Twelve obese subjects (27 ± 3.8 yrs) were evaluated, who underwent three experimental sessions with a randomized crossover design: one control session (no exercise) and two HIIE sessions with the same workload (10 x 1min @92%VO2max / 1\[HIIE 1\] or 3\[HIIE 3\] min @0%). Forearm blood flow (FBF) and blood pressure (BP) were measured before and after the experimental sessions. Heart rate and relative perceived exertion were assessed during HIIE.

Conditions

• Obesity
• Endothelial Dysfunction

Interventions

Type	Name	Description
PROCEDURE	HIIE 1	In the HIIE 1 session, all the subjects performed 10 stimuli of 1 min at high intensity (92% of VO2Max) with passive recovery (without exercise) of 1 min.
PROCEDURE	HIIE 3	In the HIIE 3 session, the subjects performed the same stimulus of the HIIE1, but with passive recovery of 3 min. Both protocols started with a warm-up of 5 min at 50% of the VO2Peak performed on a T2-100 GE Healthcare® treadmill (Lynn Medical, Wixon, Michigan, USA).
PROCEDURE	Control	In the control session, participants remained seated for 30 min. During HIIE 1 and 2, HR and RPE were assessed immediately after stimulus intervals (ten measurements at each HIIE). In all sessions, the subjects remained in supine position to obtain hemodynamic measurements which were obtained before and at 10 min, 30 min and 60 min after the HIIE and control sessions.

Timeline

• Start date: 2016-06-05
• Primary completion: 2016-12-20
• Completion: 2017-01-30
• First posted: 2017-12-19
• Last updated: 2017-12-19