Effect of Ethnicity on Changes in VO2max and Cardiac Output in Response to Short-Term High Intensity Interval Training

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

22 participants

Study Classification

INTERVENTIONAL

Study Start Date

2017-06-01

Study Completion Date

2020-03-23

Brief Summary

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The purpose of this study was to determine if ethnicity alters training responsiveness to a low dose of high intensity interval training in inactive women.

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Detailed Description

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Prior to the session, women completed a 4-minute warmup at 10 % PPO. Each subject completed 9 sessions of HIIT over a 3-week period which consisted of eight to ten 1-minute bouts of cycling at 85% PPO with 75-second recovery between bouts at 10 % PPO. This protocol is well-tolerated in inactive individuals. Continuously during each session, heart rate was monitored using telemetry. On days 1, 3, 6, and 9 of training, the physical activity enjoyment scale (PACES) was completed. VO2max and cardiac output max were assessed prior to training, as well as post.

Conditions

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Improved VO2max and Cardiac Output in Response to Training

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

SEQUENTIAL

This study was a longitudinal, repeated measures between subjects design.

Primary Study Purpose

PREVENTION

Blinding Strategy

NONE

Study Groups

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Caucasian

Participants performed 9 sessions of HIIT over 3 weeks, utilizing progressive overload by increasing the number of bouts by 1 each week. They started with 8 bouts on week 1, 9 bouts on week 2, and 10 bouts on week 3.

Group Type EXPERIMENTAL

High intensity interval training

Intervention Type OTHER

Repeated, brief, and intense exercise bouts separated by active recovery

Hispanic

Participants performed 9 sessions of HIIT over 3 weeks, utilizing progressive overload by increasing the number of bouts by 1 each week. They started with 8 bouts on week 1, 9 bouts on week 2, and 10 bouts on week 3.

Group Type EXPERIMENTAL

High intensity interval training

Intervention Type OTHER

Repeated, brief, and intense exercise bouts separated by active recovery

Interventions

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High intensity interval training

Repeated, brief, and intense exercise bouts separated by active recovery

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Women
* Between the age of 18-45
* Healthy and non-obese (BMI \< 30 kg/m2)
* Perform less than 150 minutes per week of exercise in the last 12 months
* 100% Caucasian or 100% Hispanic