Mental Effort During Low Load Resistance Training in Older Adults
Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age65-85
SponsorKennesaw State University
About this trial
The goal of this clinical trial is to determine the effect of maximal mental effort combined with low-intensity resistance training on strength and neuromuscular function in older adults. The main questions it aims to answer are:
* Does low-intensity resistance training in combination with maximal mental effort increase strength more than low intensity resistance training alone? * Does low-intensity resistance training in combination with maximal mental effort improve neuromuscular function more than low intensity resistance training alone?
Participants will be randomly assigned to 1 of 3 groups:
* Low intensity resistance training * Low intensity resistance training with maximal mental effort * Control Researchers will compare groups to determine differences in changes in strength, neuromuscular function, and body composition.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
Body mass index between 18.5 - 33 kg·m2
No structured physical activity in past 2 years
Any unstable condition contradicting exercise
Independently walk with or without assistive device
Disqualifiers
Score of 22 or lower on Montreal Cognitive Assessment
Missing more than 3 training sessions (training groups only)
Pacemaker
Unstable angina
Trial design
Design model
Parallel
Treatments tested in this trial
Low Intensity Resistance Training with Maximal Mental Effort
BehavioralThis training intervention will be 8 weeks of low intensity resistance training, including whole-body and isolated muscle exercises, where participants will perform maximal mental effort by imagining maximal muscle contraction during each exercise.
Low Intensity Resistance Training
BehavioralThis training intervention will be 8 weeks of low intensity resistance training, including whole-body and isolated muscle exercises.
Treatment groups
75 Participants
are divided into 3 treatment groupsGroup A: Low Intensity Resistance TrainingExperimental treatment 1 intervention
Group B: Low Intensity Resistance Training with Maximal Mental EffortExperimental treatment 1 intervention
Group C: ControlNo intervention 0 interventions
Trial outcomes
Primary outcomes
1
Change in isokinetic strength of the knee extensors at 60 degrees per second
Dynamic strength of the knee extensors contracting at a constant velocity
Time frame
Baseline, Week 8Secondary outcomes
1
Change in isokinetic knee extensor muscle activation as measured by electromyography amplitude
Electromyography root mean square during isokinetic contraction divided by root mean square during isometric contraction
Time frame
Baseline, Week 82
Change in isometric knee extensor strength as measured by newton-meters of torque
Isometric strength of a muscle
Time frame
Baseline, Week 83
Change in knee extensor muscle activation as measured by electromyography amplitude
A measure of the capacity at which the muscle is activated by the nervous system
Time frame
Baseline, Week 84
Change in motor unit firing rate as measured relative to the motor unit recruitment threshold
A measure of how nervous system input produces force output during an isometric contraction
Time frame
Baseline, Week 8Sponsors and contacts
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Source ClinicalTrials.gov