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HealthyNCT04508738

Effects of Combined Interventions to Optimize Recovery During High-intensity Exercises in Healthy Adults

A study testing ERP in people with Healthy, run by Swiss Federal Institute of Technology at 1 site in Switzerland.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The objective of the study is to evaluate the effects a complex recovery intervention during the breaks of a repeated sprint test on exercise performance compared to placebo and control conditions. Read more about this study

Who is it for?
Ages 18 to 40 years, men onlyHealthy volunteers can take part
Conditions the study is for
Healthy
What is being tested?
ERP
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
16 participants
Where
1 siteSwitzerland
Study dates
10 Sep 2020to 30 Jun 2021
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 40 years
  • Men only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Informed Consent as documented by signature (Appendix Informed Consent Form)
  • Healthy
  • Male
  • Age: 18-40 years
  • Body-Mass-Index (BMI): 18.5-24.9 kg・m-2
  • Trained individuals: max. Power output ≥ 4.0 Watts・kg-1
  • Non-smoking
  • Willingness to adhere to the study rules

Who cannot join

  • Known or suspected non-compliance, drug or alcohol abuse
  • Inability to follow the procedures of the study, e.g. due to language problems, psychological disorders, dementia, etc. of the participants
  • Previous enrolment into the current study
  • Intake of medications affecting performance or the respiratory, cardiovascular or neuromuscular system
  • Acute or chronic illness affecting performance or the respiratory, cardiovascular or neuromuscular system

Trial locations and contacts

1 site in 1 country.

Switzerland1 site
  • ETH Zürich, Exercise Physiology Lab

    Zurich, Canton of Zurich, 8057

Other trials in Switzerland

About this study

The objective of the study is to evaluate the effects a complex recovery intervention during the breaks of a repeated sprint test on exercise performance compared to placebo and control conditions. The enhanced recovery package (ERP) includes neck cooling with an iced gel pad, drinking a 6% CHO solution, mouth-rinsing with a 10% CHO, 6 mg・kg -1 caffeine solution, performing submaximal squats and hyperventilating a hyperoxic mixture; all applied in each 3-min break in-between the six 30-s sprints. This intervention will be compared to a placebo and a control condition.

Conditions
Healthy
Being tested
ERP, Placebo

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • ERPOther

    The ERP intervention is applied in a randomized and counter-balanced order across visits 2-4 in each 3-min break in-between the six 30-s sprints, with one intervention per visit. The order and timing of the constituents of the interventions will be strictly constant within and between participants.

    ERP: 1) neck cooling with an iced gel pad, 2) drinking a ∼ 6% CHO solution, 3) mouth-rinsing with a ∼10% CHO, ∼6 mg ・ kg -1 caffeine solution, 4) performing submaximal squats and 5) hyperventilating a hyperoxic mixture

  • PlaceboOther

    The control intervention is applied in a randomized and counter-balanced order across visits 2-4 in each 3-min break in-between the six 30-s sprints, with one intervention per visit. The order and timing of the constituents of the interventions will be strictly constant within and between participants.

    1. neck "cooling" with room temperature gel pack, 2) drinking an artificially sweetened solution, 3) mouth-rinsing with artificially sweetened solution (containing no caffeine), 4) performing unloaded squat manoeuvres, 5) deep breaths with room air
Study groups in NCT04508738
Study groupRoleWhat they receive
ERP InterventionExperimentalCombination of different methods to improve recovery.
Receives: Other: ERP
ControlNo interventionPassive recovery by sitting on a chair
PlaceboPlacebo comparatorA combination of methods similar to the ERP intervention but at an intensity / mixture supposed to be ineffective at improving recovery.
Receives: Other: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change in mean power output

    Measured over the six 30s high-intensity cycling sprints in each of the three conditions. Mean power mirrors the body's ability to generate muscle power and physical energy. Any meaningful effects of the recovery interventions will eventually translate into a higher power output.

    Measured: through study completion, an expected average of 3 weeks per participant

  2. Change in fatigue index

    Fatigue index = drop in power output from the beginning to the end a 30s sprint test. The change in this index will be calculated from the 1st to the 6th sprint test in each condition.

    Measured: through study completion, an expected average of 3 weeks per participant

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted11 Aug 2020
  2. Study start10 Sep 2020
  3. Primary completion30 Jun 2021
  4. Study completion30 Jun 2021

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Other
Allocation
Randomised
Intervention model
Crossover
Model description
Each participant will be tested on 4 different days with a control, a placebo and an interventional condition in random order.
Masking
Single blind
Who is masked
Participant
Enrolment
16 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04508738
Sponsor's protocol ID
ERP_2020
Status last verified
Oct 2020
First submitted
4 Aug 2020
Last updated
2 Jul 2021
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A study testing ERP in people with Healthy, run by Swiss Federal Institute of Technology at 1 site in Switzerland.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 8 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 2 Jul 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Switzerland. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change in mean power output (time frame: through study completion, an expected average of 3 weeks per participant). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 2 Jul 2021.

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