The Effect of Caffeine in Elderly Citizens

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

COMPLETED

Clinical Phase

PHASE4

Total Enrollment

30 participants

Study Classification

INTERVENTIONAL

Study Start Date

2002-07-31

Study Completion Date

2006-03-31

Brief Summary

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The study investigated the effect of caffeine on physical performance in healthy citizens aged over 70 years. The main hypothesis was that 6 mg/kg caffeine would improve cycling endurance at 65% of expected maximal heart rate.

Detailed Description

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Caffeine ingestion increases the endurance of young people exercising at 60%-85% of their maximal oxygen uptake, and it also seems to improve endurance as measured by repeated sub-maximal isometric contraction and decreases the rate of perceived exertion during exercise. Although caffeine increases endurance in young people, an increase in endurance may be of greater interest in the elderly as the population of older adults with a physically active lifestyle is growing rapidly or for increasing endurance fitness through an exercise or rehabilitation program. Therefore the main hypothesis was that caffeine would improve cycling endurance at 65% of expected maximal heart rate, and the secondary hypotheses were that caffeine would improve postural stability, reaction and movement times, isometric arm flexion endurance, and walking speed, and would reduce the rate of perceived exertion after 5 minutes of cycling in healthy elderly citizens.

Conditions

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Healthy Elderly Citizens

Keywords

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caffeine, endurance, postural stability, elderly

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Interventions

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Caffeine

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Healthy elderly individuals aged over 70 years

Exclusion Criteria

* Dementia or invalidating psychiatric disease
* General debility, angina, or other diseases that would render participation in the test program impossible
* Treatment with beta receptor blocking drugs, calcium-channel blocking drugs, digitalis, or nitroglycerine
* Acute disease and injury
* Diabetes
* Conditions that would contraindicate caffeine ingestion or participation in the test program
* Treatment with medication that interacts with caffeine
* Ingestion of caffeine containing drinks and foods 48 hours before each session

Minimum Eligible Age

70 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Principal Investigators

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Charlotte B Norager, M.D

Role: PRINCIPAL_INVESTIGATOR

Surgical Research Department, Herning Hospital, DK-7400 Herning

Locations

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Surgical Research Department

Herning, Ringkjoebing, Denmark

Site Status

Countries

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Denmark

Other Identifiers

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2612-1987

Identifier Type: -

Identifier Source: org_study_id