Physiological Responses to Maximal 4-s Sprint Interval Cycling

Exercise, Cardiovascular Function, Fatigue, Muscular Power Clinical Trial

Official title:

Physiological Responses to Maximal 4-s Sprint Interval Cycling Using Inertial Loading: the Influence of Inter-sprint Recovery Duration

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT04448925
• Other study ID #: UTexasAustinHPL
• Status: Completed
• Phase: N/A
• Start date: January 10, 2019
• Est. completion date: June 20, 2020

Study information

• Verified date: June 2020
• Source: University of Texas at Austin
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

The optimal recovery duration depends on the intensity of exercise and in the present study the intensity was maximal power for 4-s while cycling an 'Inertial Load' ergometer (ILE). Recovery duration of 15, 30 and 45-s were given between 30 successive sprints.

Description:

All subjects completed an informed consent for this study that was approved by the Institutional Review Board of the University of Texas at Austin.

Study Overview. A randomized, cross-over experimental design was conducted. Each participant visited the laboratory on four occasions which were separated by two to five days. Measurement of body mass, familiarization with experimental procedures and cycling peak oxygen consumption test (VO2peak) were performed on the first visit. Participants took part in inertial-load exercise (ILE) on the remaining test days. On each separate session, a different inter-sprint recovery duration was employed (i.e. 15, 30 or 45-s). Cycling power output, pulmonary gas exchange, vastus lateralis de-oxygenation status, heart rate and blood lactate were measured.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 16
• Est. completion date: June 20, 2020
• Est. primary completion date: July 20, 2019
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 18 Years to 40 Years

Eligibility

Inclusion Criteria:

• healthy participants

Exclusion Criteria:

• unhealthy

Related Conditions & MeSH terms

• Exercise, Cardiovascular Function, Fatigue, Muscular Power
• Fatigue

Intervention

Other:
• inertial-load exercise (ILE)
Length of time between exercise bouts

Locations

Country	Name	City	State
United States	University of Texas at Austin Human Performance Laboratory	Austin	Texas

Sponsors (1)

Lead Sponsor	Collaborator
University of Texas at Austin

Country where clinical trial is conducted

United States, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	maximal leg power		10 min