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Physiological Responses to Maximal 4-s Sprint Interval Cycling

Primary Purpose

Exercise, Cardiovascular Function, Fatigue, Muscular Power

Status
Completed
Phase
Not Applicable
Locations
United States
Study Type
Interventional
Intervention
inertial-load exercise (ILE)
Sponsored by
University of Texas at Austin
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional basic science trial for Exercise, Cardiovascular Function, Fatigue, Muscular Power

Eligibility Criteria

18 Years - 40 Years (Adult)All SexesAccepts Healthy Volunteers

Inclusion Criteria:

  • healthy participants

Exclusion Criteria:

  • unhealthy

Sites / Locations

  • University of Texas at Austin Human Performance Laboratory

Arms of the Study

Arm 1

Arm 2

Arm 3

Arm Type

Experimental

Experimental

Experimental

Arm Label

Recovery duration 15 seconds

Recovery duration 30 seconds

Recovery duration 45 seconds

Arm Description

Resting for 15 sec

Resting for 30 sec

Resting for 45 sec

Outcomes

Primary Outcome Measures

maximal leg power

Secondary Outcome Measures

Full Information

First Posted
June 23, 2020
Last Updated
June 25, 2020
Sponsor
University of Texas at Austin
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1. Study Identification

Unique Protocol Identification Number
NCT04448925
Brief Title
Physiological Responses to Maximal 4-s Sprint Interval Cycling
Official Title
Physiological Responses to Maximal 4-s Sprint Interval Cycling Using Inertial Loading: the Influence of Inter-sprint Recovery Duration
Study Type
Interventional

2. Study Status

Record Verification Date
June 2020
Overall Recruitment Status
Completed
Study Start Date
January 10, 2019 (Actual)
Primary Completion Date
July 20, 2019 (Actual)
Study Completion Date
June 20, 2020 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
University of Texas at Austin

4. Oversight

Studies a U.S. FDA-regulated Drug Product
No
Studies a U.S. FDA-regulated Device Product
No
Data Monitoring Committee
Yes

5. Study Description

Brief 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.
Detailed 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.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Exercise, Cardiovascular Function, Fatigue, Muscular Power

7. Study Design

Primary Purpose
Basic Science
Study Phase
Not Applicable
Interventional Study Model
Crossover Assignment
Model Description
Repeated measures, cross-over
Masking
None (Open Label)
Allocation
Randomized
Enrollment
16 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Recovery duration 15 seconds
Arm Type
Experimental
Arm Description
Resting for 15 sec
Arm Title
Recovery duration 30 seconds
Arm Type
Experimental
Arm Description
Resting for 30 sec
Arm Title
Recovery duration 45 seconds
Arm Type
Experimental
Arm Description
Resting for 45 sec
Intervention Type
Other
Intervention Name(s)
inertial-load exercise (ILE)
Intervention Description
Length of time between exercise bouts
Primary Outcome Measure Information:
Title
maximal leg power
Time Frame
10 min

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Maximum Age & Unit of Time
40 Years
Accepts Healthy Volunteers
Accepts Healthy Volunteers
Eligibility Criteria
Inclusion Criteria: healthy participants Exclusion Criteria: unhealthy
Facility Information:
Facility Name
University of Texas at Austin Human Performance Laboratory
City
Austin
State/Province
Texas
ZIP/Postal Code
78712
Country
United States

12. IPD Sharing Statement

Plan to Share IPD
No
IPD Sharing Plan Description
all data will be grouped and averaged
Citations:
PubMed Identifier
33974126
Citation
Vardarli E, Satiroglu R, Allen JR, Bjellquist-Ledger R, Burton HM, Coyle EF. Physiological responses to maximal 4 s sprint interval cycling using inertial loading: the influence of inter-sprint recovery duration. Eur J Appl Physiol. 2021 Aug;121(8):2295-2304. doi: 10.1007/s00421-021-04677-6. Epub 2021 May 11.
Results Reference
derived

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Physiological Responses to Maximal 4-s Sprint Interval Cycling

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