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Obesity and catecholamine responses to maximal exercise in adolescent girls

Published on Sep 1, 2010in European Journal of Applied Physiology3.06
· DOI :10.1007/s00421-010-1492-9
Hassane Zouhal19
Estimated H-index: 19
(University of Rennes),
Georges Jabbour6
Estimated H-index: 6
(University of Rennes)
+ 4 AuthorsC. Jacob13
Estimated H-index: 13
(University of Balamand)
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Abstract
The aim of this study was to investigate plasma catecholamine [adrenaline (A) and noradrenaline (NA)] concentrations at rest and in response to maximal exercise in three different groups of adolescent girls. According to their body mass index, 34 adolescent girls aged 15–16 years were divided into three groups: a normal weight group (NO) (n = 11), an overweight group (OW) (n = 11) and an obese group (OB) (n = 12). Plasma A and NA concentrations were measured at rest during fasting conditions (A 0 and NA0), after a standardized breakfast (A rest and NArest) and immediately after an incremental exhaustive exercise (A EX and NAEX). A 0 and NA0 were not significantly different among the three groups. However, the A 0/NA0 was statistically lower in OB compared to OW and NO. A EX and NAEX were significantly higher than resting values in the three groups. However, in response to exercise, no significant differences were reported between OB (A EX = 2.20 ± 0.13 nmol/l, NAEX = 12.28 ± 0.64 nmol/l), OW (A EX = 2.39 ± 0.23 nmol/l, NAEX = 12.94 ± 0.93 nmol/l) and NO (A EX = 2.52 ± 0.24 nmol/l, NAEX = 12.60 ± 0.63 nmol/l). In conclusion, our results showed that at rest, in adolescent girls, the responsiveness of the adrenal medulla to the sympathetic nervous activity is lower in OB subjects compared to OW and NO ones. However, in response to maximal exercise, plasma catecholamines are not affected by obesity.
  • References (45)
  • Citations (7)
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References45
Newest
#1Hassane Zouhal (University of Rennes)H-Index: 19
#2C. Jacob (University of Rennes)H-Index: 13
Last.Arlette Gratas-Delamarche (University of Rennes)H-Index: 21
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#1Nikolaos Tentolouris (Athens State University)H-Index: 18
#2Stavros Liatis (Athens State University)H-Index: 16
Last.N. Katsilambros (Athens State University)H-Index: 11
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#1Alon Eliakim (Boston Children's Hospital)H-Index: 13
#2Dan Nemet (Boston Children's Hospital)H-Index: 10
Last.Dan M. Cooper (Boston Children's Hospital)H-Index: 2
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#1M. Botcazou (École normale supérieure de Cachan)H-Index: 1
#2Hassane Zouhal (École normale supérieure de Cachan)H-Index: 19
Last.P. Delamarche (École normale supérieure de Cachan)H-Index: 1
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#1Robert G. McMurray (UNC: University of North Carolina at Chapel Hill)H-Index: 45
#2Anthony C. Hackney (UNC: University of North Carolina at Chapel Hill)H-Index: 33
Cited By7
Newest
#1Takashi Abe (University of Mississippi)H-Index: 21
#2Jeremy P. Loenneke (University of Mississippi)H-Index: 33
Last.Robert S. Thiebaud (Texas Wesleyan University)H-Index: 23
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#1Dominique Hansen (University of Hasselt)H-Index: 23
#2Nastasia Marinus (University of Hasselt)H-Index: 1
Last.Tim Takken (UU: Utrecht University)H-Index: 42
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#1Hassane Zouhal (École normale supérieure de Cachan)H-Index: 19
#2Sophie Lemoine-Morel (École normale supérieure de Cachan)H-Index: 6
Last.Georges Jabbour (École normale supérieure de Cachan)H-Index: 6
view all 5 authors...
#1Daniela A. Rubin (CSUF: California State University, Fullerton)H-Index: 9
#2James J. Tufano (CSU: California State University)
Last.Robert G. McMurray (UNC: University of North Carolina at Chapel Hill)H-Index: 45
view all 3 authors...
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