Completed

NCT Number: NCT00761163

The Body's Response to Aerobic Versus Resistance Exercise

The purpose of this study is to identify the body's response to aerobic vs. resistance exercise. Throughout this study, we will examine food intake, appetite, and physical and mental well-being before, during, and after aerobic and resistance exercise.

Completed

Looking for future studies?

Notify Me

Key information

Conditions

Exercise Behavior Motor Activity

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Purdue University

West Lafayette, Indiana, 47907, United States

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

Body mass index between 18-29 kg/m2
Weight stable (< 4.5 kg weight change within last 6 months)
Non-smoking
Constant habitual activity patterns within last 3 months
Non-diabetic
Resistive exercise training (≥ 2 times a week) based on reported physical activity levels (questionnaire)
Aerobic exercise training (≥ 2 times a week, 30-min sessions) based on reported physical activity levels (questionnaire)
Confirmation of acceptability of eating the study test foods (macaroni casserole)
Approved to participate in this study by our study physician and principle investigator

The older subjects must also meet the following eligibility criteria:

Age range: 65 years and older
Body fat (women: <38%; men: <28%)
Normal resting EKG as assessed by a Cardiologist

The younger subjects must also meet the following eligibility criteria:

Age range: 18-29 years
Body fat (women: <28%; men: <18%)

Exclusion criteria

Body mass index: outside of the 18-29 kg/m2 range
Gained or lost > 4.5 kg within the last 6 months
Smoker (currently or within the last year)
Intermittently been involved in a diet and/or exercise program within the last 3 months
Clinically diagnosed as diabetic
Did not perform resistive exercise training (currently or within the last 3 months) based on reported physical activity levels (questionnaire)
Did not perform adequate aerobic exercise (currently or within the last 3 months) based on physical activity levels (questionnaire)
Study food is found to be unacceptable for consumption by the subject
Unapproved to participate in this study by our study physician and principle investigator

The older subjects:

Age range: <65 yrs
Body fat (women: >38%; men: >28%)
Abnormal resting EKG (interpreted by a cardiologist) and assessed (for study exclusion) by our study physician, Arthur Rosen, MD

The younger subjects:

Age range: outside the >29 yrs or <18 yrs
Body fat (women: >28%; men: >18%)

Treatment and study plan

Resistance Exercise

Other

The subjects will complete 2 resistive exercise sessions on non-consecutive days that will be supervised by our laboratory staff. The following exercises will be performed using the Keiser Sports Health equipment in Ismail Health, Exercise, and Nutrition Center: seated row, double leg press, seated leg curl, chest press, and leg extension. The subjects will individually perform 3 sets of 8-10 repetitions at an exercise intensity of 70% of pre-determined maximal strength for these exercises. Each repetition will be performed in a slow (six to eight seconds) uniform fashion, giving equal time to the concentric (muscle shortening) and eccentric (muscle lengthening) portions. One minute of rest will be allowed between sets. The last repetition of the third set of each exercise will be done to voluntary fatigue or the performance of 12 repetitions.

Aerobic Exercise

Other

The subjects will complete 2 aerobic exercise sessions on non-consecutive days that will also be supervised by our laboratory staff. The subjects will perform 45 minutes of aerobic exercise on a stationary bike at an exercise intensity of 70% of their heart-rate reserve.

Control (Non-exercise)

Other

The subjects will also complete 2 non-exercise sessions on non-consecutive days that will also be supervised by our laboratory staff. These sessions will consist of incorporating diversionary tasks throughout a 45 minute period consisting of a variety of motor and psychological tasks (tests of hand steadiness, alertness, optical illusions, mental acuity, etc.)

Primary outcomes

Physical well being via electrocardiogram and body composition

Time frame: 5-6 weeks
Mental well being via questionnaires

Time frame: 5-6 weeks

Sponsors and collaborators

Lead sponsor

Purdue University

Other

Registry information

Important dates

Study start: 2007
Primary completion: 2008
Study completion: 2008
First posted: Sep 29, 2008
Registry last updated: Jan 17, 2013

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Published trials that share one or more normalized conditions with this study.

Completed