NCT00572871

Brief Summary

We are interested in determining if there exist a short-term response in the serum markers and hormones that participate in the regulation of bone tissue formation and breakdown to a single, high-intensity exercise session of weight lifting (resistance exercise) or jumping (plyometrics). We are also interested in determining if the bone marker response to exercise is altered by changing the negative energy state caused by the exercise treatment, when subjects are given a moderate calorie meal.

Trial Health

100
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
12

participants targeted

Target at below P25 for all trials

Timeline
Completed

Started Dec 2007

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

December 1, 2007

Completed
11 days until next milestone

First Submitted

Initial submission to the registry

December 12, 2007

Completed
1 day until next milestone

First Posted

Study publicly available on registry

December 13, 2007

Completed
2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2009

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2009

Completed
Last Updated

October 4, 2016

Status Verified

September 1, 2016

Enrollment Period

2 years

First QC Date

December 12, 2007

Last Update Submit

September 30, 2016

Conditions

Outcome Measures

Primary Outcomes (1)

  • serum bone turnover markers

    24 hours

Secondary Outcomes (1)

  • serum hormones regulating bone turnover

    24 hours

Study Arms (3)

Exercise after fasting

Will complete 2 resistance exercise sessions and 2 plyometric exercise sessions after a 10-hour fast

Other: resistance exercise

No exercise

Will complete a ten-hour fast but do no exercise

Other: No exercise

Exercise after snack

Will complete 2 resistance exercise sessions and 2 plyometric exercise sessions 2 hours following a 500 calorie nutritional supplement

Other: plyometric exercise

Interventions

single bout of plyometric exercise

Exercise after snack

single bout of resistance exercise

Exercise after fasting

Will not do any exercise

No exercise

Eligibility Criteria

Age25 Years - 65 Years
Sexmale
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Male participants apparently healthy and non-sedentary free of disease that affects bone and not have used or currently use any medication that affects bone.

You may qualify if:

  • Male
  • No symptoms of disease
  • Non-sedentary
  • Age 25-65

You may not qualify if:

  • Medications or supplements that affect bone metabolism or prevent exercise
  • Previous or current medical condition affecting bone health, including osteoporosis.
  • Cardiovascular disease
  • Metallic implants affecting accuracy of bone density scan
  • Current smoker
  • Current participation in high-intensity jumping or resistance exercise in the last 3 months.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Biospecimen

Retention: SAMPLES WITHOUT DNA

serum plasma

MeSH Terms

Conditions

OsteoporosisBone Diseases, Metabolic

Interventions

Plyometric ExerciseResistance Training

Condition Hierarchy (Ancestors)

Bone DiseasesMusculoskeletal DiseasesMetabolic DiseasesNutritional and Metabolic Diseases

Intervention Hierarchy (Ancestors)

Exercise TherapyRehabilitationAftercareContinuity of Patient CarePatient CareTherapeuticsPhysical Therapy ModalitiesPhysical Conditioning, HumanExerciseMotor ActivityMovementMusculoskeletal Physiological PhenomenaMusculoskeletal and Neural Physiological Phenomena

Study Officials

  • Pamela S Hinton, Ph.D.

    University of Missouri-Columbia

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
CASE ONLY
Time Perspective
CROSS SECTIONAL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

December 12, 2007

First Posted

December 13, 2007

Study Start

December 1, 2007

Primary Completion

December 1, 2009

Study Completion

December 1, 2009

Last Updated

October 4, 2016

Record last verified: 2016-09

Data Sharing

IPD Sharing
Will not share