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Functional LimitationCHORES-XLNCT02129855

Metabolic Costs of Daily Activities in Older Adults

An observational study of Functional Limitation, run by University of Florida at 1 site in United States.

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 work will evaluate the metabolic costs for daily activities across the lifespan and evaluate the influence of having functional impairments. Read more about this study

Who is it for?
Ages 20 years and olderHealthy volunteers can take part
Conditions the study is for
Functional Limitation
How many people
269 participants
Where
1 siteUnited States
Study dates
Jul 2014to 6 Jun 2019
Phase
Observational
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 20 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: Community dwelling population

Who may be able to join

  • Age 20+ years old
  • Community dwelling adults without significant health issues
  • Willingness to undergo all testing procedures
  • Weight stable for at least three months
  • Able to understand and speak English

Who cannot join

  • Failure to provide informed consent
  • A 10% enrollment limit will be applied to avid exercisers in each age decade. Avid exercises will be defined as doing structured exercise 3 or more days per week (e.g. jogging, sports etc., walkers will be permitted in the study). Based on our experience, avid exercisers volunteer for this type of research at a high rate and thus the investigators will limit these individuals to prevent a biased comparison
  • Use of walker (use of a cane is permitted)
  • Lower extremity amputation
  • Develops chest pain or severe shortness of breath during physical stress
  • Post-stroke syndrome causing ambulatory deficits (other stroke survivors permitted)
Show all 44Show fewer
  • Pacemaker
  • Needs assistance with basic activities of daily living: feeding, dressing, continence, bathing, toileting, and transferring from a bed to a chair or from a chair to walking
  • Lives in a nursing home; persons living in assisted or independent housing are not excluded
  • For adults over the age of 60: >2 errors on the Short, portable mental status questionnaire administered after written informed consent
  • Excessive alcohol or substance abuse within six months or consumption of >14 alcohol drinks/week
  • For women who are child-bearing age (up to 62 years of age): pregnant or breast-feeding
  • Participation in a structured weight loss program or fad diet in the last month;
  • Weight reduction surgery in the past year
  • Known neuromuscular disorder (Rhabdomyolysis, Myasthenia Gravis, Ataxia, Apraxia, post-polio syndrome, mitochondrial myopathy, chronic fatigue syndrome etc.)
  • Diagnosed neuropathy that causes pain
  • Symptomatic peripheral arterial disease
  • Unable to communicate because of severe hearing loss or speech disorder
  • Severe visual impairment, which would preclude completion of the assessments
  • Progressive, degenerative neurologic disease, e.g., Parkinson's Disease, Multiple Sclerosis, Amyotrophic lateral sclerosis
  • Severe rheumatologic or orthopedic diseases, e.g., awaiting joint replacement, active inflammatory disease; self-reported severe osteoarthritis
  • Terminal illness, as determined by the participant
  • Severe pulmonary disease, requiring the use of supplemental oxygen or steroid therapy
  • Severe cardiac disease, including New York Heart Association Class III or IV congestive heart failure, clinically significant aortic stenosis, recent history of cardiac arrest, use of a cardiac defibrillator, or uncontrolled angina
  • Other significant comorbid disease discovered during medical screening, e.g. renal failure on hemodialysis, psychiatric disorder (e.g. bipolar, schizophrenia); chronic fatigue syndrome etc…
  • Liver diseases: chronic hepatitis, an inflammatory disease, or cirrhosis
  • Pregnancy. Participants within childbearing age will have a pregnancy test.
  • Contraindications to graded exercise testing according to the American Thoracic Society:
  • Acute myocardial infarction (<6 months since event)
  • Unstable angina
  • Uncontrolled arrhythmias causing symptoms or hemodynamic compromise
  • Syncope
  • Active endocarditis
  • Acute myocarditis or pericarditis
  • Symptomatic severe aortic stenosis
  • Uncontrolled heart failure
  • Acute pulmonary embolus or pulmonary infarction
  • Thrombosis of lower extremity
  • Suspected dissecting aneurysm
  • Uncontrolled asthmas
  • Pulmonary edema
  • Room air desaturation at rest < 85%
  • Respiratory failure
  • Acute non cardiopulmonary disorder that may affect exercise performance

Trial locations and contacts

1 site in 1 country.

United States1 site
  • UF Institute on Aging Clinical and Translational Research Building

    Gainesville, Florida, 32611

Other trials in United States

About this study

The work will evaluate the metabolic costs for daily activities across the lifespan and evaluate the influence of having functional impairments.

Read the detailed description

The work will evaluate the metabolic costs for daily activities across the lifespan and evaluate the influence of having functional impairments. The project will simultaneously conduct a cross-sectional and a case-control study. The primary aim will investigate cross-sectional association between older age and the energy expenditure of daily activities by recruiting approximately 25 adults in each of 7 age groups (20-30,30-40,40-50,50-60,60-70,70-80,80+) for a total of 180 individuals. A secondary aim will investigate the effect of functional impairments on the energy expenditure of daily activities by conducting a case-control study. An additional 25 older adults with functional impairment will be recruited in each age decade (60-70, 70-80, and 80+ years old) to accomplish this aim. Additional outcomes will evaluate rating of perceived exertion differences in daily activities. A tertiary aim will investigate using accelerometers to predict the metabolic costs of daily activities.

What is being measured

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

  1. MET value

    MET value of physical activities defined as the oxygen uptake (VO2 = milliliter• min-1•kg-1) during a steady state rate expressed as a function 3.5 milliliter• min-1•kg-1.

    Measured: Participants will attend up to 4 visits within one month of enrollment to attain these data

  2. Metabolic economy

    Metabolic economy is the energy expended for a given work rate.

    Measured: Participants will attend up to 4 visits within one month of enrollment to attain these data

  3. Relative metabolic cost to peak energy expenditure

    Relative metabolic cost is function of peak oxygen consumption

    Measured: Participants will attend up to 4 visits within one month of enrollment to attain these data

  4. Relative metabolic cost to resting energy expenditure

    Relative metabolic cost as a function of resting

    Measured: Participants will attend up to 4 visits within one month of enrollment to attain these data

Secondary outcomes (1)
  1. Rating of perceived exertion

    Ratings of perceived exertion will be collected during all activities. Investigators will use the Category Ratio scale-10 scale developed by Borg in 1982.

    Measured: Participants will attend up to 4 visits within one month of enrollment to attain these data

Timeline

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

  1. First posted2 May 2014 (estimated)
  2. Study startJul 2014
  3. Primary completion6 Jun 2019
  4. Study completion6 Jun 2019

Resources

More details

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

Study design
Study type
Observational
Observational model
Other
Time perspective
Cross-sectional
Enrolment
269 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02129855
Sponsor's protocol ID
IRB201501057-N
Other IDs
5R01AG042525-05, 087-2013, OCR15164
Acronym
CHORES-XL
Status last verified
Jun 2019
First submitted
28 Feb 2014
Last updated
7 Jun 2019
Results posted
No
Data monitoring committee
Yes
Individual data sharing
Undecided

Questions about this trial

What is this clinical trial studying?

An observational study of Functional Limitation, run by University of Florida 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 5 inclusion and 44 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 7 Jun 2019. 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 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?

MET value (time frame: Participants will attend up to 4 visits within one month of enrollment to attain these data). The study lists 4 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 7 Jun 2019.

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