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European Journal of Applied Physiology

, Volume 103, Issue 3, pp 315–321 | Cite as

Energy cost and energy sources of a ballet dance exercise in female adolescents with different technical ability

  • Laura Guidetti
  • Gian Pietro Emerenziani
  • Maria Chiara Gallotta
  • Sergio Gregorio Da Silva
  • Carlo Baldari
Original Article

Abstract

This study evaluated energy cost and energy sources of a ballet exercise (grand adage) in young female dancers with different technical ability, and then related the energy sources to the subject’s \( \ifmmode\expandafter\dot\else\expandafter\.\fi{V}{\text{O}}_{{2\max }} \) and anaerobic threshold (IAT). Twenty-five dancers (13–16 years) were divided into two different technical ability groups: low-level (n = 13) and high-level (n = 12). The overall energy requirement of dance exercise (VO2eq) was obtained by adding the amount of VO2 during exercise above resting (aerobic source or VO2ex) to the VO2 up to the fast component of recovery (anaerobic alactic source or VO2al) and to the energy equivalent of peak blood lactate accumulation (anaerobic lactic source or \( V\text{O}_{\text{2la}^{-}} \)) of recovery. VO2eq of exercise amounted to 81 ± 10 and 94 ± 9 ml kg−1 in low-level and high-level groups, respectively. VO2ex represented the higher fraction (65 ± 4% and 77 ± 5%) in low-level and high-level groups, respectively, of VO2eq in both the groups. In the low-level group the remaining fractions were: 23 ± 2 % for VO2al and 12 ± 1% for \( V\text{O}_{\text{2la}^{-}} \). In high-level group the remaining fractions were: 18 ± 2 % for VO2al and 4 ± 1% for \( V\text{O}_{\text{2la}^{-}} \). Between two groups, significant differences were found in VO2ex (P < 0.01), \( V\text{O}_{\text{2la}^{-}} \) (P < 0.01), and VO2al (P < 0.05). IAT was 55 and 60% of \( \ifmmode\expandafter\dot\else\expandafter\.\fi{V}{\text{O}}_{{2\max }} \) for low-level and high-level dancers, respectively. Low-level dancers performed more exercise above IAT than high-level. For these reasons, it should be better to define exercise intensity according to the IAT parameter and not only to \( \ifmmode\expandafter\dot\else\expandafter\.\fi{V}{\text{O}}_{{2\max }} . \)

Keywords

Adolescent dancers Oxygen uptake Aerobic and anaerobic thresholds Blood lactate 

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Copyright information

© Springer-Verlag 2008

Authors and Affiliations

  • Laura Guidetti
    • 1
  • Gian Pietro Emerenziani
    • 3
  • Maria Chiara Gallotta
    • 1
  • Sergio Gregorio Da Silva
    • 2
  • Carlo Baldari
    • 3
  1. 1.Unit of Physical Exercise SciencesDepartment of Health Sciences, University of Rome (IUSM)RomeItaly
  2. 2.Department of Physical Education, Federal University of Paraná (UFPR)CuritibaBrazil
  3. 3.Unit of Sport Sciences, Department of Health Sciences, University of Rome (IUSM)RomeItaly

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