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Assisted Exercise in Prematurity; Effects and Mechanisms

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ClinicalTrials.gov Identifier: NCT00580099
Recruitment Status : Withdrawn (Non applicable clinical trial)
First Posted : December 24, 2007
Last Update Posted : January 25, 2021
Information provided by (Responsible Party):
University of California, Irvine

Brief Summary:
Briefly our study is looking at the effects of 4 weeks of assisted exercise on the body composition and neurological/behavioral development of healthy growing premature infants enrolled between the ages of 30-33 weeks. It is a blinded study where the active group gets the exercise intervention and the control group is cuddled for the same amount of time -approximately 20 minutes. We get baseline data using muscle ultrasound, bone speed of sound and DEXA. We also get baseline blood samples to look at inflammatory mediators and growth hormone. Video of each subject is recorded an hour at two time points during the study to assess the babies for spontaneous activity. Nutritional intake information is collected daily and in the 4th week of the study assessments made for total energy expenditure using doubly labeled water. At this point in the study we repeat the ultrasounds and DEXA for comparison. Finally in the period just before discharge we do a complex neurological exam using the Brazelton NBAS assessment.

Condition or disease Intervention/treatment Phase
Growth Development Other: assisted exercise Other: cuddle Not Applicable

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 0 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double (Participant, Investigator)
Primary Purpose: Other
Official Title: Assisted Exercise in Prematurity; Effects and Mechanisms
Actual Study Start Date : February 2006
Actual Primary Completion Date : February 2006
Actual Study Completion Date : February 2006

Arm Intervention/treatment
Experimental: 1
4 weeks of assisted exercise using passive range of motion on all major joints
Other: assisted exercise
4 weeks of passive range of motion exercise

Active Comparator: 2
cuddle for 20 minutes
Other: cuddle
cuddle infant for 20 minutes

Primary Outcome Measures :
  1. Body composition, bone mineralization, muscle mass, anthropometric measurements [ Time Frame: 4 weeks ]

Secondary Outcome Measures :
  1. spontaneous movement [ Time Frame: two time points ]
  2. Neurological/behavioral status [ Time Frame: end of 4th week ]
  3. Blood Sampling to measure IGF-1, GHBP, IL-1ra [ Time Frame: Baseline, week 2 and week 4 ]

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Ages Eligible for Study:   30 Weeks to 35 Weeks   (Child)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Preterm infants born at post menstrual ages of 23-33 weeks gestation Enrollment occurs at post menstrual age of 30 to 35 weeks.if their projected stay based on standard clinical criteria is four weeks after enrollment
  • Enrollment occurs at post menstrual age of 30 up to 35 weeks, if their projected stay based on standard clinical criteria is 4 weeks after enrollment.
  • Birth weight appropriate for gestational age (AGA) using current CDC growth charts. AGA is defined as plus or minus 2 standard deviations above the mean or above the third percentile.
  • Tolerating full enteral feeds at greater than or equal to 100kcal/kg/day

Exclusion Criteria:

  • Evidence of chromosomal or other major genetic abnormalities
  • Existence of current diseases or syndromes including:

central nervous system or other neurological abnormalities chronic lung disease of prematurity requiring chronic use of corticosteroids, musculoskeletal diseases

  • positive infant toxicology screen(urine) for drugs or alcohol
  • Both parents are under the age of 18 years
  • Babies with tracheostomy
  • Babies receiving ventilator assistance with breathing
  • Babies receiving IV fluids

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00580099

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United States, California
University of California, Irvine
Orange, California, United States, 92865
Sponsors and Collaborators
University of California, Irvine
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Principal Investigator: Dan M Cooper, MD University of California, Irvine
Publications of Results:
Other Publications:
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Responsible Party: University of California, Irvine
ClinicalTrials.gov Identifier: NCT00580099    
Other Study ID Numbers: 2005-4797
NIH Grant R01NR009070
First Posted: December 24, 2007    Key Record Dates
Last Update Posted: January 25, 2021
Last Verified: January 2021
Keywords provided by University of California, Irvine:
premature infant, body composition, total energy expenditure
inflammatory growth mediators
Additional relevant MeSH terms:
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Premature Birth
Obstetric Labor, Premature
Obstetric Labor Complications
Pregnancy Complications