NCT04656509

Effects of Short Duration High-intensity Interval Training on Peak Oxygen Consumption

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 11 (actual)
• Sponsor: University of Texas at Austin · Academic / Other
• Sex: All
• Age: 18 Years – 49 Years
• Healthy volunteers: Accepted

Summary

High-intensity interval training (HIIT) is an effective tool to improve cardiovascular fitness and maximal anaerobic power. Different methods of HIIT have been studied but the effect of a maximal effort cycling and very short exercise time (i.e., 4-s) with short recovery time (15-30 s) and a high number of repetitions (i.e., 30 bouts) is unknown.

Detailed description

The investigators examined the effects of training at maximal anaerobic power during cycling (PC) on maximal anaerobic power, peak oxygen consumption (VO2peak), and total blood volume in 11 young healthy individuals (age: 21.3±0.5 y) (6 men, 5 women). Methods: Participants trained three times a week for eight weeks performing a PC program consisting of 30 bouts of 4-s at an all-out intensity (i.e., 2 minutes of exercise per session). The cardiovascular stress progressively increased over the weeks by decreasing the recovery time between sprints (30 to 24 to 15-s) and thus session time decreased from 17 to \< 10 min.

Conditions

• Cardiovascular Fitness

Interventions

Type	Name	Description
OTHER	4-s sprint inertial load training	A program employing 30 bouts of 4s inertial load sprint training with progressively reduced recovery time (30 to 15 s) between sprints is effective for improving blood volume, VO2peak and maximal power.

Timeline

• Start date: 2019-04-01
• Primary completion: 2020-03-31
• Completion: 2020-04-24
• First posted: 2020-12-07
• Last updated: 2020-12-09

Locations

1 site across 1 country: United States