Imagining Fast vs Slow Muscle Contractions in Healthy Individuals
Influence of Fast and Slow Imagined Muscle Contractions on Muscle Function or Central Nervous System Properties
Recruiting
N/AInterventional Study
Healthy
No Placebo Group
Every participant receives an active treatment — no one gets a placebo.
Healthy Volunteers Welcome
You do not need to have the condition being studied to take part.
Ready to participate?
Review the details below, then apply to join this clinical trial.
At a Glance
Age
18 – 30
Sex
Any
Study type
Interventional
Purpose
Basic Science
Participants needed
18 (estimated)
Sponsor
Kennesaw State University · Other
Who this trial is looking for
This trial is looking for young adults aged 18 to 30 who are healthy and want to participate in research about muscle and nervous system function. Participants will take part in 4 lab visits and imagine muscle contractions without moving their muscles.
Are You a Good Fit for This Trial?
Must not be takingStimulantsAntipsychoticsAnxiety medicationsDepression medications
You may be able to join if
I am between 18 and 30 years old.
I am healthy and have no medical conditions.
I have not exercised in the past 3 years.
I am right-handed.
If I am female, I have been on the same birth control for 6 months.
My body mass index is between 18.5 and 30.
You may not be able to join if
I have had an upper body injury in the past year.
I am ambidextrous.
I cannot safely undergo transcranial magnetic stimulation.
I take medications for anxiety, depression, or psychosis.
I am currently on stimulants.
Summarized in plain language from this trial's official eligibility criteria.
The full criteria are further down this page — only the research team can
confirm whether you qualify.
Think this trial could be right for you?
Answer a few quick questions to see if you may meet the eligibility requirements.
The goal of this randomized clinical trial is to learn if imagining fast or slow muscle contractions causes different responses for nervous system excitability and muscle function in young, healthy males and females in. The main questions are:
Does imagining fast muscle contractions cause greater nervous system excitability compared to imagining slow muscle contractions?
Does imagining fast musc…
The goal of this randomized clinical trial is to learn if imagining fast or slow muscle contractions causes different responses for nervous system excitability and muscle function in young, healthy males and females in. The main questions are:
Does imagining fast muscle contractions cause greater nervous system excitability compared to imagining slow muscle contractions?
Does imagining fast muscle contractions increase muscle function compared to imagining slow muscle contractions?
A control condition (rest) will be compared with two intervention conditions: imagining fast and imagining slow conditions, to determine if the fast and slow increase outcomes more than control and if fast has the greatest response.
Participants will:
* Attend 4 laboratory visits
* Perform 50 imagined contractions fast or slow, but with no physical movement
* Physical muscle contractions and non-invasive brain stimulation would be completed before and after each condition.
Trial Locations
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Eligibility Criteria
Inclusion Criteria:
* Be between the ages of 18 - 30
* Healthy (no medical conditions)
* If female, must be taking the same monophasic oral contraceptive for the past 6 months
* Have a body mass index between 18.5 - 30 kg/m2
* Have not performed structured cardiovascular or resistance exercise in p…
Inclusion Criteria:
* Be between the ages of 18 - 30
* Healthy (no medical conditions)
* If female, must be taking the same monophasic oral contraceptive for the past 6 months
* Have a body mass index between 18.5 - 30 kg/m2
* Have not performed structured cardiovascular or resistance exercise in past 3 years
* Be right-handed
* Not currently taking stimulants, antipsychotic, anxiety, or depression medications
* Have not suffered an upper extremity musculoskeletal injury within the past year
Exclusion Criteria:
* If transcranial magnetic stimulation (TMS) is not deemed appropriate depending on your responses to the TMS-specific questionnaire
* Being ambidextrous
* Although rare, you will be excluded if discernable muscle activation responses are not possible via TMS
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