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JOURNAL
OF
SPORTS SCIENCE &
MEDICINE
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Research
article
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ENERGY EXPENDITURE AND HABITUAL PHYSICAL ACTIVITIES IN ADOLESCENT SPRINT ATHLETES |
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Dirk Aerenhouts1  ,
Evert Zinzen2 and Peter Clarys1 |
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1Department of Human Biometry and Biomechanics, and 2Department of Movement Education and Sports Training, Vrije Universiteit Brussel, Brussels, Belgium |
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© Journal of Sports Science and Medicine (2011) 10, 362 - 368 |
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| ABSTRACT | |||
| This study aimed to assess total energy expenditure (TEE) and
specific habitual physical activities in adolescent sprint athletes. Two
methods used to estimate TEE, an activity diary (AD) and SenseWear armband
(SWA), were compared. Sixteen athletes (6 girls, 10 boys, mean age 16.5
± 1.6 yr) simultaneously wore a SWA and completed an AD and food diary during
one week. Basal energy expenditure as given by the SWA when taken off was
corrected for the appropriate MET value using the AD. TEE as estimated by
the AD and SWA was comparable (3196 ± 590 kcal and 3012 ± 518 kcal, p =
0.113) without day-to-day variations in TEE and energy expended in activities
of high intensity. Daily energy intake (2569 ± 508 kcal) did not match TEE
according to both the AD and SWA (respectively p < 0.001 and p = 0.007).
Athletes were in a supine position for a longer time on weekend days than
on week days and slept longer on Sundays. Athletes reported a longer time
of high-intensive physical activities in the AD than registered by the SWA
on 4 out of 7 days. In addition to specific sprint activities on 3 to 7
days per week, 11 out of 16 athletes actively commuted to school where they
participated in sports once or twice per week. The AD and the SWA are comparable
in the estimation of TEE, which appears realistic and sustainable. The SWA
offers an appropriate and objective method in the assessment of TEE, sleeping
and resting in adolescent athletes on the condition that detailed information
is given for the times the armband is not worn. The AD offers activity specific
information but relies on the motivation, compliance and subjectivity of
the individual, especially considering high-intensive intermittent training. Key words: Indirect calorimetry, armband, exercise, sleep. |
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