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Menstrual CycleNCT04024826

Effects of Resistance Training on Substrate Metabolism During the Menstrual Cycle

A study testing EFP, LFP and ELP in people with Menstrual Cycle and Substrate Metabolism, run by Southern Illinois University Edwardsville at 1 site in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

This research project's objective is to investigate substrate metabolism behavior in response to the RT during different phases of the menstrual cycle. Read more about this study

Who is it for?
Ages 18 to 45 years, women onlyHealthy volunteers can take part
Conditions the study is for
Menstrual Cycle, Substrate Metabolism
What is being tested?
EFP, LFP and ELP
Could I receive a placebo?
No, everyone receives an active treatment
How many people
10 participants
Where
1 siteUnited States
Study dates
1 Jul 2019to 16 Mar 2020
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 45 years
  • Women only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Females with BMI-18.5-34.99 and between 18-45 years, with normal menstrual cycle defined as 28-30 days cycles +-3 days.
  • Including higher BMI participants might alter the results as increased body fat has been linked to changes in different hormonal levels (not only sex hormones) and that might influence substrate utilization.
  • Sedentary .or physically active for 2 days a week or less.

Who cannot join

  • • Musculoskeletal injuries,
  • cardio-respiratory conditions,
  • metabolic conditions,
  • irregular menstrual cycle,
  • menstrual dysfunction or unusual sex hormone levels,
  • on contraceptives,
Show all 10Show fewer
  • on medication that alter hormonal or cardio-respiratory responses,
  • pre-menopausal symptoms,
  • on moderate to high-intensity exercise regime more than 2d/week.
  • All these exclusion criteria are chosen because any one of the listed criteria above can alter the responses and/or affect the safety of the subject during their participation in the study.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Southern Illinois University Edwardsville

    Edwardsville, Illinois, 62026

Other trials in United States

About this study

Official title: Acute Effects of Resistance Training on Substrate Metabolism During Different Phases of Menstrual Cycle

This research project's objective is to investigate substrate metabolism behavior in response to the RT during different phases of the menstrual cycle.

Read the detailed description

Based on the literature the investigators hypothesize an increase in fat oxidation in early follicular phase(EFP) and late follicular phase (LFP) when compared to early luteal phase (ELP) and late luteal phase (LLP). Given the lack of research in exercise and menstrual cycle - especially in resistance training - results are uncertain unless the investigators base their hypotheses only on the general physiological effects of sex hormones (without exercise). In this case, the investigators expect to see a reduced carbohydrate utilization and an increased utilization of fats in EFP and LFP. In addition, the intervention is focused on muscular endurance and, therefore, it is expected to see a higher reliance on aerobic pathways. It is expected that the effects of the intervention will be added to the effects of estrogens, with increasing fat oxidation when estrogen levels are higher. Lastly, a comparison of fat oxidation levels obtained on each sub-phase would reveal if there are differences in the magnitude of the effect of distinct concentrations of estrogen and progesterone.

Being tested
EFP, LFP, ELP, LLP
Keywords
resistance training, carbohydrate metabolism, fat oxidation

What participants receive

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

  • EFPBehavioural

    This group will perform the Resistance training intervention on day 4 of the menstrual cycle, which corresponds to the mid of early follicular phase.

  • LFPBehavioural

    This group will perform the Resistance training intervention on day 11 of the menstrual cycle, which corresponds to the mid of late follicular phase.

  • ELPBehavioural

    This group will perform the Resistance training intervention on the day 18 of the menstrual cycle, which corresponds to the mid of early luteal phase

  • LLPBehavioural

    This group will perform the Resistance training intervention on day 21 of the menstrual cycle, which corresponds to the mid of late luteal phase

Study groups in NCT04024826
Study groupRoleWhat they receive
Early Follicular Phase (EFP)ExperimentalThis group is comprised of participants at the Early Follicular Phase (EFP) of the menstrual cycle.
Receives: Behavioral: EFP
Late Follicular PhaseExperimentalThis group is comprised of participants at the Late Follicular Phase (LFP) of the menstrual cycle.
Receives: Behavioral: LFP
Early Luteal PhaseExperimentalThis group is comprised of participants at the Early Luteal Phase (ELP) of the menstrual cycle.
Receives: Behavioral: ELP
Late Luteal PhaseExperimentalThis group is comprised of participants at the Late Luteal Phase(LLP) of the menstrual cycle.
Receives: Behavioral: LLP

What is being measured

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

  1. Changes in Substrate oxidation

    changes in substrate oxidation will be measured using cosmed K5 during the intervention phase

    Measured: During each exercise session: 1 assessment point on each menstrual cycle phase

  2. Changes in Estrogen levels.

    Blood would be drawn from the participants for assessment of hormone estrogen

    Measured: At baseline: 1 assessment point on each menstrual cycle phase

  3. Changes in Progesterone levels.

    Blood would be drawn from the participants for assessment of hormone Progesterone.

    Measured: At baseline: 1 assessment point on each menstrual cycle phase

Secondary outcomes (6)
  1. Muscular strength

    Muscular strength will be assessed by one-repetition maximum test on leg press and bench press

    Measured: At baseline: 1 assessment point

  2. Cardiorespiratory Function

    maximal oxygen consumption will measured on a treadmill with a metabolic cart

    Measured: At baseline: 1 assessment point

  3. Relative Body Fat (%)

    Body composition i.e Fat mass, Lean body mass and Body fat percentage will be measured using dual-energy xray absorptiometry

    Measured: At baseline: 1 assessment point

  4. Lean Body Mass (kg)

    Body composition i.e Fat mass, Lean body mass and Body fat percentage will be measured using dual-energy xray absorptiometry

    Measured: At baseline: 1 assessment point

  5. Fat Mass (kg)

    Body composition i.e Fat mass, Lean body mass and Body fat percentage will be measured using dual-energy xray absorptiometry

    Measured: At baseline: 1 assessment point

  6. Diet

    Diet will be measured using ASA-24h recall

    Measured: At baseline: 1 assessment point on each menstrual cycle phase

Timeline

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

  1. First posted18 Jul 2019
  2. Study start1 Jul 2019
  3. Primary completion16 Mar 2020
  4. Study completion16 Mar 2020

Why it stopped: Covid/19

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
Basic science
Allocation
Randomised
Intervention model
Crossover
Model description
The participants will be randomized into either one of the 4 four phases- namely Early Follicular Phase(EFP-Days1 to 7), Late Follicular Phase(LFP-Days 8 to 14), Early Luteal Phase(ELP-Days 15 to 21) or Late Luteal Phase(LLP-Days 22 to 28) of the menstrual phase. Once the participant is assigned to one of the phases. Each participant will undergo 4 intervention days. the first intervention day will take place during the mid-point of the said phase i.e. EFP- Day 4. After one intervention is complete there will be a washout period and the intervention will take place on the 7th day after the first intervention i.e if the first intervention is LFP done on day 11 of the menstrual cycle the next intervention will take place on day 18 of menstrual cycle which will account for ELP. In this manner, the Participant will be tested in all 4 phases.
Masking
None (open label)
Enrolment
10 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04024826
Sponsor's protocol ID
111A
Status last verified
Jul 2019
First submitted
21 Mar 2019
Last updated
4 Oct 2021
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A study testing EFP, LFP and ELP in people with Menstrual Cycle and Substrate Metabolism, run by Southern Illinois University Edwardsville at 1 site in United States.

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 3 inclusion and 10 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: stopped early, as of the sponsor's last update on 4 Oct 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 United States. 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. 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 was stopped early (reason given: Covid/19). Results are not available in the source record.

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?

Changes in Substrate oxidation (time frame: During each exercise session: 1 assessment point on each menstrual cycle phase). The study lists 3 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 4 Oct 2021.

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