Volume 62, Issue 11 pp. 1962-1967
Research Article

Physical activity level is not a determinant of autonomic nervous system activity and clinical severity in children/adolescents with sickle cell anemia: A pilot study

Keyne Charlot PhD

Keyne Charlot PhD

UMR Inserm U1134, French West Indies and Guiana University, Pointe-à-Pitre, Guadeloupe, France

Laboratory ACTES (EA 3596), Department of Physiology, French West Indies and Guiana University, Pointe-à-Pitre, Guadeloupe, France

Laboratoire d'Excellence du Globule Rouge (LABEX GR-Ex) PRES Sorbonne, Paris, France

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Berenike Moeckesch MSc

Berenike Moeckesch MSc

UMR Inserm U1134, French West Indies and Guiana University, Pointe-à-Pitre, Guadeloupe, France

Laboratory ACTES (EA 3596), Department of Physiology, French West Indies and Guiana University, Pointe-à-Pitre, Guadeloupe, France

Laboratoire d'Excellence du Globule Rouge (LABEX GR-Ex) PRES Sorbonne, Paris, France

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Stéphane Jumet MSc

Stéphane Jumet MSc

Laboratory ACTES (EA 3596), Department of Physiology, French West Indies and Guiana University, Pointe-à-Pitre, Guadeloupe, France

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Marc Romana PhD

Marc Romana PhD

UMR Inserm U1134, French West Indies and Guiana University, Pointe-à-Pitre, Guadeloupe, France

Laboratoire d'Excellence du Globule Rouge (LABEX GR-Ex) PRES Sorbonne, Paris, France

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Xavier Waltz PhD

Xavier Waltz PhD

UMR Inserm U1134, French West Indies and Guiana University, Pointe-à-Pitre, Guadeloupe, France

Laboratory ACTES (EA 3596), Department of Physiology, French West Indies and Guiana University, Pointe-à-Pitre, Guadeloupe, France

Laboratoire d'Excellence du Globule Rouge (LABEX GR-Ex) PRES Sorbonne, Paris, France

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Lydia Divialle-Doumdo MD

Lydia Divialle-Doumdo MD

Sickle Cell Center, Academic Hospital of Pointe-à-Pitre, Pointe-à-Pitre, Guadeloupe, France

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Marie-Dominique Hardy-Dessources PhD

Marie-Dominique Hardy-Dessources PhD

UMR Inserm U1134, French West Indies and Guiana University, Pointe-à-Pitre, Guadeloupe, France

Laboratoire d'Excellence du Globule Rouge (LABEX GR-Ex) PRES Sorbonne, Paris, France

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Marie Petras MD

Marie Petras MD

Sickle Cell Center, Academic Hospital of Pointe-à-Pitre, Pointe-à-Pitre, Guadeloupe, France

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Benoît Tressières MSc

Benoît Tressières MSc

Centre Investigation Clinique Antilles Guyane 1424 Inserm, Academic Hospital of Pointe-à-Pitre, Pointe-à-Pitre, Guadeloupe, France

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Aurélien Pichon PhD

Aurélien Pichon PhD

Laboratory MOVE, EA6314, University of Poitiers, Poitiers, France

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Vanessa Tarer PhD

Vanessa Tarer PhD

Sickle Cell Center, Academic Hospital of Pointe-à-Pitre, Pointe-à-Pitre, Guadeloupe, France

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Olivier Hue PhD

Olivier Hue PhD

Laboratory ACTES (EA 3596), Department of Physiology, French West Indies and Guiana University, Pointe-à-Pitre, Guadeloupe, France

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Maryse Etienne-Julan MD, PhD

Maryse Etienne-Julan MD, PhD

Sickle Cell Center, Academic Hospital of Pointe-à-Pitre, Pointe-à-Pitre, Guadeloupe, France

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Sophie Antoine-Jonville PhD

Sophie Antoine-Jonville PhD

Laboratory ACTES (EA 3596), Department of Physiology, French West Indies and Guiana University, Pointe-à-Pitre, Guadeloupe, France

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Philippe Connes PhD

Corresponding Author

Philippe Connes PhD

UMR Inserm U1134, French West Indies and Guiana University, Pointe-à-Pitre, Guadeloupe, France

Laboratoire d'Excellence du Globule Rouge (LABEX GR-Ex) PRES Sorbonne, Paris, France

Institut Universitaire de France (IUF), Paris, France

Laboratory CRIS EA647, Section Vascular Biology and Red Blood Cell, University of Lyon, Lyon, France

Correspondence to: Philippe Connes, UMR Inserm U1134, French West Indies and Guiana University, Pointe-à-Pitre, Guadeloupe, France. E-mail: [email protected]

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First published: 19 May 2015
Citations: 8
Sophie Antoine-Jonville and Philippe Connes contributed equally to this work.
Conflict of interest: Nothing to declare.

Abstract

Background

Autonomic nervous system (ANS) activity has been suggested to modulate the clinical severity of sickle cell anemia (SCA) by increasing the risk for vaso-occlusive events. Regular physical activity (PA) is known to improve ANS activity and health status in several cardiovascular and metabolic diseases. Whether regular PA improves the health status of SCA patients remains unknown.

Procedure

Twenty-two patients with SCA and 15 healthy (AA) children/adolescents participated to the study. Heart rate variability was measured in supine position and after a tilt-test to quantify the ANS activity. PA energy expenditure (PAEE) was assessed with questionnaire.

Results

1) PAEE was lower in SCA compared to AA (190 ± 152 vs. 432 ± 277 kcal·d−1, respectively, P < 0.01), 2) overall ANS activity was lower in SCA compared to AA, 3) parasympathetic withdrawal was observed in SCA with aging, 4) ANS reactivity was slightly impaired in SCA compared to AA (reduction in HFnu: −38 ± 27 vs. −58 ± 14%, respectively, P < 0.05), 5) ANS indices, PAEE, and rates of clinical events were not correlated.

Conclusion

Both the level of PA and ANS activity are reduced in SCA compared to AA children/adolescents, particularly in those older than 15 years. Neither PAEE, nor ANS activity seem to influence the clinical severity of children/adolescents with SCA. Pediatr Blood Cancer © 2015 Wiley Periodicals, Inc.

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