Adaptive Training Recommendations for Improved Physical Performance

NCT ID: NCT06145152

Last Updated: 2024-03-20

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

PHASE1

Total Enrollment

40 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-12-05

Study Completion Date

2025-12-01

Brief Summary

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In this study two different training strategies are compared; one is adaptive where the training is adjusted up or down on a daily basis to better match the recovery status (readiness) of the subject. The other strategy is static, i.e. no changes are made depending on readiness level. Instead the subjects in the static group are encouraged to perform the prescribed training.

The training intervention will last for 8 weeks.

Thorough physiological tests will be performed pre and post the training intervention together with muscle biopsies for assessment of mitochondrial function.

Detailed Description

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40 recreational athletes, 20 male and 20 females, will be recruited to this study. The research subjects will be stratified into two groups: an Adaptive and a Static training group. The training sessions will be mainly home-based training according to daily instructions from an online application. Testing sessions will be performed on a laboratory treadmill. During the entire period (run-in + training period) the participants will wear continuous glucose monitors for minute-by-minute glucose tracking, an Oura ring for sleep measurements, a Garmin GPS watch with heart rate chest-strap for training data and answer questiions regarding subjective well-being using an online application (Readiness Advisor).

The training program will be a mixture of training sessions based on the experience levels of the research subject.

During the onboarding session, data from each persons Garmin watch, will be used to create an optimal training program that takes into account recent training history and which type of training each subject responds the best to. For the subjects in the Adaptive group the training will be adjusted up or down on a daily basis based on subjective readiness, sleep or glucose control. The subjects in the Static group will not get any adjustments in their training program regardless of readiness level.

The length of the training intervention will be 8 weeks.

In addition to adjusting the training for the adaptive group based on daily readiness, the training in that group will be adjusted based on actual training done. For example if a participant fails to reach his suggested heart rate range during a prescribed session, the training load for upcoming sessions will be recalculated so that the weekly overall training load goal is achieved. This kind of adjustments will not be done in the static training group.

Both pre and post the training period a battery of physiological tests will be done including determination of VO2max, lactate threshold and running economy. A performance test (3000m time-trial) will be done on a running track.

A muscle biopsy will be donated from the Vastus Lateralis for assessment of mitochondrial function, efficiency, capacity and density using a combination of methods including respirometry, western blot and enzymatic methods. Capillarization and number of myonuclei will be assessed using histochemical staining. In addition muscle buffering capacity will be investigated using an acid-titration assay.

In addition to the physiological and biochemical investigation, parameters such as subjective training tolerability, perceived pleasure of the training and number of dropouts are important objectives in the proposed studie.

Statistical power calculation. Based on the parallel group design, 80% power, an alpha of 0.05 and a coefficient of variation of 2.4% for VO2max, 4.2% for performance and 14% for mitochondrial function, a differences can be detected between groups of 6%, 11% and 26% for the three outcomes if 15 participants per group are included. 20 subjects will be recruited per group to allow for 5 dropouts per group.

Conditions

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Maximal Oxygen Consumption Physical Performance

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

SINGLE

Participants

Study Groups

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Adaptive

Subjects in the Adaptive group will get updated and adjusted training programs based on daily readiness level

Group Type EXPERIMENTAL

Adaptive exercise training

Intervention Type PROCEDURE

The training recommendation for the day will be adjusted based on the readiness level. The adjustments can be both up or down (increased or decreased training)

Static

Subjects in the Static group will get the same inital training program as the Adaptive group but will not get updated and adjusted training programs based on daily readiness level

Group Type ACTIVE_COMPARATOR

Static exercise training

Intervention Type PROCEDURE

The training recommendation for the day will not be adjusted based on the readiness level.

Interventions

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Adaptive exercise training

The training recommendation for the day will be adjusted based on the readiness level. The adjustments can be both up or down (increased or decreased training)

Intervention Type PROCEDURE

Static exercise training

The training recommendation for the day will not be adjusted based on the readiness level.

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* Training history of at least two running sessions per week (5km +) the last 6 months
* No chronic diseases
* Able to perform maximal exercise
* Having used a smart watch for training frequently during the last 3 months
* Willing to use wearable technology (Oura ring, continuous glucose monitor, running GPS watch)

Exclusion Criteria

* Heart, lung or metabolic disease
* Recurrent running injuries
* Not willing to use wearable devices
* Performing a subtantial amount of non-running exercise training
Minimum Eligible Age

18 Years

Maximum Eligible Age

50 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Silicon Valley Exercise Analytics (svexa)

UNKNOWN

Sponsor Role collaborator

The Swedish School of Sport and Health Sciences

OTHER

Sponsor Role lead

Responsible Party

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Filip Larsen

Associate Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Swedish School of Sports and Health Sciences

Stockholm, , Sweden

Site Status RECRUITING

Countries

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Sweden

Facility Contacts

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Filip Larsen, PhD

Role: primary

+46(8)120 537 97

Other Identifiers

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Ellida

Identifier Type: -

Identifier Source: org_study_id

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