The Effect of Daily Exercise Program on Bone Mineral Density and Cortisol Level in Preterm Infants

The Effect of Daily Exercise Program on Bone Mineral Density and Cortisol Level in Preterm Infants With Very Low Birth Weight: A Randomized Controlled Trial

ABSTRACT Objective: This randomized controlled double-blinded experimental study was carried out to determine the effects of daily exercise program on bone mineral density and cortisol level in preterm infants with very low birth weight matched for birth weight, gestation week, and gender.

Study design: The study was performed with preterm infants hospitalized in the neonatal intensive care unit of a tertiary hospital. Ethical committee approval, institutional permission, parental written consent were obtained. Daily exercise program was implemented in preterm infants in the exercise group for 30 days, once a day, and continuing for 7-10 minutes. Before and after the study the following were evaluated in preterm infants in the exercise and control group: anthropometric measurements, tibia speed of sound (SOS) for bone mineral density, serum biochemical parameters and cortisol levels.

Objective: This randomized controlled double-blinded experimental study was carried out to determine the effects of daily exercise program on bone mineral density and cortisol level in preterm infants with very low birth weight matched for birth weight, gestation week, and gender.

Study design: The study was performed with preterm infants hospitalized in the neonatal intensive care unit of a tertiary hospital. Ethical committee approval, institutional permission, parental written consent were obtained. Daily exercise program was implemented in preterm infants in the exercise group for 30 days, once a day, and continuing for 7-10 minutes. Before and after the study the following were evaluated in preterm infants in the exercise and control group: anthropometric measurements, tibia speed of sound (SOS) for bone mineral density, serum biochemical parameters and cortisol levels.

Inclusion Criteria:Inclusion criteria for the infants were as follows:

• postnatal age of 1-5 days,
• gestational age of 28-32 weeks,
• birth weight of 1,000-1,500 gr,
• no diagnosis of necrotizing enterocolitis (NEC), digestive system or chromosomal abnormalities, skin diseases, intrauterine growth retardation (IUGR), SGA, and large gestational age (LGA),
• no history of surgical intervention, and
• no medical treatment except for appropriate vitamin supplements and antibiotic treatments.

Exclusion Criteria:

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