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Maximal Oxygen Consumption And Bone Mineral Density In Children: 208 Board #46 May 28, 1100 AM - 1230 PM

ZUNQUIN, Gautier1; El Hage, Rawad2; Zakhem, Eddy2; THEUNYNCK, Denis1; BOUGLE, Dominique3

Medicine & Science in Sports & Exercise: May 2014 - Volume 46 - Issue 5S - p 44
doi: 10.1249/01.mss.0000493293.91910.f3
A-36 Free Communication/Poster - Bone, Bone Mineral Density, and Connective Tissue Wednesday, May 28, 2014, 7:30 AM - 12:30 PM Room: WB1
Free

1Université du Littoral Côte d’Opale, Dunkerque, France. 2University of Balamand, Tripoli, Lebanon. 3CHU de Caen, Caen, France.

(No relationships reported)

INTRODUCTION: Although several studies have shown associations between anaerobic performance and bone mineral density (BMD) [1,2], little is known concerning the relation between aerobic performance and BMD. Childhood is a key period for the accumulation of BMD [3, 4].The aim of this study was to explore the relationship between maximal oxygen consumption (VO2 max) and BMD in a group of French children.

METHODS: 69 girls and 51 boys (whose ages range from 6 to 16 years participated in this study. Body weight and height were measured, and body mass index (BMI) was calculated. Maximal oxygen consumption (VO2 max) was determined by direct measurement on a bicycle ergometer. Whole body bone mineral content (WB BMC), WB BMD, subtotal BMD (WB BMD less head), L2-L4 BMD, total hip BMD (TH BMD) and femoral neck BMD (FN BMD) were measured by DXA.

RESULTS: In girls, VO2 max (expressed as L/min) was positively correlated to WB BMC (r= 0.61; P<0.001), WB BMD (r=0.63; P<0.001), subtotal BMD (r=0.65; P<0.001), L2-L4 BMD (r=0.62; P<0.001), TH BMD (r=0.61; P<0.001) and FN BMD (r=0.58; P<0.001). In boys,VO2 max (expressed as L/min) was positively correlated to WB BMC (r= 0.72; P<0.001), WB BMD (r=0.68; P<0.001), subtotal BMD (r=0.72; P<0.001), L2-L4 BMD (r=0.64; P<0.001), TH BMD (r=0.75; P<0.001) and FN BMD (r=0.68; P<0.001). In both sexes, the positive associations between VO2 max and bone variables (BMC and BMD) remained significant after adjustment for age (P<0.001).

CONCLUSION: This study suggests that VO2 max (L/min) is a positive determinant of BMC and BMD in growing children. Aerobic performance seems to be a determinant of BMC and BMD in growing children.

REFERENCES

[1] Zakhem E, El Hage R, Bassil S, Moussa E, Zunquin G, Theunynck D. Standing long jump performance is a positive determinant of bone mineral density in young adult women. J Clin Densitom 2013;16:129-130.

[2] El Hage R, Zakhem E, Zunquin G, Theunynck D, Moussa E, Maalouf G. Performances in Vertical Jump and Horizontal Jump Tests Are Positive Determinants of Hip Bone Mineral Density in a Group of Young Adult Men. J Clin Densitom 2013 In press.

[3] Ferrari S, Rizzoli R, Bonjour JP. Heritable and nutritional influences on bone mineral mass. Aging (Milano) 1998;10:205-213.

[4] Carrié Fässler AL, Bonjour JP. osteoporosis as a pediatric problem. Pediatr Clin North Am 1995;42:811-824.

© 2014 American College of Sports Medicine