The Influence of Chlorella Supplementation on Running Performance

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

RECRUITING

Clinical Phase

NA

Total Enrollment

20 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-01-05

Study Completion Date

2025-09-30

Brief Summary

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Algae, such as chlorella, are gaining popularity as a nutritious additive to whole food or as a supplement. They contain a variety of beneficial nutrients like vitamins, minerals, healthy fats, and amino acids, which can have positive effects on our health and possibly athletic performance. Chlorella, specifically, is a type of single-celled green algae that you can easily find in health stores worldwide. While there's some evidence suggesting that chlorella supplementation might improve submaximal and maximal performance for cyclists, it's unclear if it has the same impact on runners. To investigate this, the investigators aim to conduct a double-blind randomised placebo controlled study to see if taking chlorella daily for 3-weeks can enhance different aspects of running performance, both during low/moderate and intense exercise, among individuals who regularly engage in running.

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Detailed Description

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After signing the consent form, we will invite you to come to the ISEH laboratory on Tottenham Court Road so we can take some basic baseline readings. This should last up to 60 minutes and will also include a V̇o2max Test (visit 1). After this, you will be randomly allocated either start on chlorella or placebo first. After supplementation (for visit 2 and 3) you will be required to perform a submaximal running test which will entail running at 60% GET (gas exchange threshold), 80% GET, and 75% of the change from peak. This will then be shortly followed by an incremental test to fatigue.

You will then be required to undergo the exact same supplementation period on the alternative supplement with the same exercise test performed.

You will be required to come into the laboratory a total of 3 times. Each visit should take roughly 1 - 1.5 hours.

Conditions

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Athletes Healthy

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

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Chlorella supplementation

Supplementation of chlorella (6g/day for 3-weeks)

Group Type EXPERIMENTAL

Chlorella supplementation

Intervention Type DIETARY_SUPPLEMENT

Supplementation with chlorella (6g/day for 3-weeks)

Placebo supplementation

Supplementation of placebo (6g/day for 3-weeks)

Group Type PLACEBO_COMPARATOR

Placebo supplementation

Intervention Type DIETARY_SUPPLEMENT

Supplementation with placebo - microcrystalline cellulose (6g/day for 3-weeks)

Interventions

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Chlorella supplementation

Supplementation with chlorella (6g/day for 3-weeks)

Intervention Type DIETARY_SUPPLEMENT

Placebo supplementation

Supplementation with placebo - microcrystalline cellulose (6g/day for 3-weeks)

Intervention Type DIETARY_SUPPLEMENT

Eligibility Criteria

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Inclusion Criteria

* Aged 18-50.
* Run regularly (3-4 times a week).
* Train with a purpose to compete.
* Consider running to be your main sport.
* Be comfortable running continuously for over 30-minutes at moderate intensity.
* Represent a local running club.

Exclusion Criteria

* Individuals taking blood thinners.
* Known allergies to algae/mould and iodine.
* Any illness/conditions identified on PARQ (please see attached PARQ)
* Taking immunosuppressant medication

Minimum Eligible Age

18 Years

Maximum Eligible Age

50 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes