Abstract
The aim of the present study was to assess the performance of subjects with sickle cell trait (SCT) during brief and explosive exercise involving mainly anaerobic metabolism. One hundred and ninety-six black subjects underwent SCT screening, which revealed the presence of 16 subjects with SCT and 180 subjects with normal hemoglobin (HbAA). All subjects performed four tests: 1) a 100-m sprint, 2) a long-jump, 3) a Leger-Boucher shuttle test and 4) a jump-and-reach test. A control group (n = 18) selected from the 180 subjects with HbAA was matched according to the sex, age, weight and height of the SCT subjects (SCTs). The performances of the SCTs (n = 16) were compared with those of the control group. The performances were similar between the SCTs and control group for the sprint test, long-jump and the Leger-Boucher shuttle test. There was, however, a significant difference for the jump-and-reach test between the two groups: the SCTs (i. e., males plus females, and males and females considered separately) reached a significantly greater height (p < 0.05) than the matched subjects of the control group (63.7 ± 3.6 vs. 58.6 ± 3.1 cm, 72.3 ± 3.9 vs. 67.1 ± 2.4 cm and 52.7 ± 3.2 vs. 45.3 ± 2.0 cm for SCTs versus non-SCTs, for the group, the males and the females, respectively). The results of the present study suggest that the performance of brief and explosive exercise may be enhanced by HbS.
Key words
Sickle cell trait - anaerobic performance - anaerobic metabolism - jump-and-reach test
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O. Hue
Laboratoire ACTE · Université des Antilles et de la Guyane
Campus de Fouillole · 97159 Pointe à Pitre Cedex · France
eMail: HueO@wanadoo.fr
