Document Type

Article

Language

eng

Format of Original

8 p.

Publication Date

1-2012

Publisher

Springer

Source Publication

Pediatric Cardiology

Source ISSN

0172-0643

Original Item ID

doi: 10.1007/s00246-011-0097-3

Abstract

Exercise creates a physiologic burden with recovery from such effort crucial to adaptation. Excess postexercise oxygen consumption (EPOC) refers to the body’s increased metabolic need after work. This investigation was designed to determine the role of near infrared spectroscopy (NIRS) in the description of exercise recovery in healthy controls (NL) and children with congenital heart disease (CHD). Subjects were recruited with exercise testing performed to exhaustion. Exercise time (EXT), heart rate (HR), and oxygen consumption (VO2) were measured. Four-site NIRS (brain, kidney, deltoid, and vastus lateralis) were measured during exercise and into recovery to establish trends. Fifty individuals were recruited for each group (NL = 26 boys and 24 girls; CHD = 33 boys and 17 girls). Significant differences existed between EXT, VO2, and peak HR (P < 0.01). NIRS values were examined at four distinct intervals: rest, peak work, and 2 and 5 min after exercise. Significant cerebral hyperemia was seen in children with CHD post exercise when compared to normal individuals in whom redistribution patterns were directed to somatic muscles. These identified trends support an immediate compensation of organ systems to re-establish homeostasis in peripheral beds through enhanced perfusion. Noninvasive NIRS monitoring helps delineate patterns of redistribution associated with EPOC in healthy adolescents and children with CHD.

Comments

Pediatric Cardiology, Vol. 33, No. 1 (January 2012): 95-102. DOI. © 2012 Springer International Publishing AG. Part of Springer Nature. Used with permission.

Michael J. Danduran was affiliated with the Herma Heart Center, Children’s Hospital of Wisconsin, Milwaukee, WI at time of publication.

Share

COinS