The Effects of High-intensity Interval Training on Mental Health and Inflammation

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

60 participants

Study Classification

INTERVENTIONAL

Study Start Date

2015-09-14

Study Completion Date

2016-04-08

Brief Summary

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The present study investigated the effects of high-intensity interval exercise training and placebo-exercise on mental health and inflammation using a randomized control trial. The study also examined how anxiety symptoms prior to high-intensity interval training may influence improvements in fitness. Inactive young adults underwent nine weeks of either high-intensity interval training or their regular routine. Questionnaires, a blood draw and a maximal exercise test were conducted the week before and week after the intervention. It was hypothesized those who underwent high-intensity interval training would experience greater reductions in their depression, anxiety, and inflammation than those who were in the placebo control group. It was also hypothesized those who had high anxiety symptoms at the start of high-intensity interval training would experience smaller improvements in fitness than those who had low anxiety symptoms.

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Detailed Description

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Conditions

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Anxiety Depressive Symptoms Inflammation

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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High-intensity interval training

Three sessions of high-intensity interval training per week for nine weeks. Following a three minute warm up, a session contained twenty minutes of alternating between a sprint (80% of maximum workload, 90-95% of maximum heart rate) and active rest (30% of maximum workload) at a one minute to one minute ratio. Every session ended with a two and a half minute cool down.

Group Type EXPERIMENTAL

Exercise

Intervention Type BEHAVIORAL

Placebo exercise group

No changes in physical activity behaviour occurred (already engaging in less than 150 minutes per week, instructed to maintain their current inactivity). They were told they needed to stay inactive since they were part of an 'acute' exercise group, aiming to see how long the effects of their baseline maximal exercise test would last. Thus, the cover story gave them the impression they were also in an exercise group, as oppose to a non-exercise control group.

Group Type PLACEBO_COMPARATOR