Status:
COMPLETED
Jump-In: Building Better Bones
Lead Sponsor:
University of Arizona
Conditions:
Adolescent Development
Eligibility:
FEMALE
9-12 years
Phase:
NA
Brief Summary
The Jump-In study will prospectively assess the effects of impact exercise on skeletal development in young girls, including bone mass, bone mineral density, and bone geometry. We hypothesize that gir...
Detailed Description
Jump-In is a school-based, block-randomized, trial of the effects of impact-loading exercise on skeletal development in prepubescent and early pubescent girls. Fourth (n=\~200) and sixth (n=\~200) gra...
Eligibility Criteria
Inclusion
- female; entering 4th or 6th grade at enrollment; and willing and able to undergo all of the testing requirements; no physical conditions that limit participation in physical activity/exercise; able to read and write English.
Exclusion
- Girls with severe learning disabilities (identified by schools), who are unable to complete questionnaires or otherwise comply with assessment protocols will be excluded. Any subjects (or potential subjects) suffering from medical conditions and/or disabilities that would limit their participation in exercise will be excluded from the study, following the American Academy of Pediatrics (AAP) guidelines. Further, any volunteers who are taking medications that would limit exercise and/or alter bone mineral accrual will also be excluded from the study. Girls with a positive pregnancy screening test at the time of the lab visit before DXA scanning will be excluded.
Key Trial Info
Start Date :
April 1 2007
Trial Type :
INTERVENTIONAL
Allocation :
ACTUAL
End Date :
April 1 2013
Estimated Enrollment :
509 Patients enrolled
Trial Details
Trial ID
NCT00729378
Start Date
April 1 2007
End Date
April 1 2013
Last Update
October 28 2025
Active Locations (1)
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1
University of Arizona-Ina Gittings Bldg. #93
Tucson, Arizona, United States, 85721