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Referência: HUNT, I. K; MARTIN, S; HETZLER, R. K. Metabolic
responses to skateboarding. Medicine & Science in Sports & Exercise,
v.35(5), Suppl, p.S155, May. 2003.
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nº doc
0077
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Resumo: n/d
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Abstract: The purpose of this study was to compare the oxygen
uptake of skateboarding and running on a treadmill; and to use
oxygen pulse data from the metabolic analysis of treadmill
skateboarding and heart rate data from a skateboard field test to
estimate the metabolic responses to skateboarding in the field. Five
skateboarders of varying levels of experience were studied, two
females and three males (age = 23.4±2.6 yrs, ht = 173.3±5.9 cm, wt =
70.0±6.3 kg) with a mean VO2max of 55.1±4.3 ml/kg/min. VO2max was
assessed using the Bruce protocol. Subjects then participated in two
treadmill tests and one field test. The treadmill protocol consisted
of ten stages, the first at 0% elevation at 5.0 mph, then 9
subsequent stages at 1.5% elevation starting at 5.0 mph and
increasing 0.5 mph per stage. Subjects skated and ran the same
treadmill protocol. The field test consisted of 30 minutes of
skateboarding on a flat concrete surface while wearing a Polar heart
rate monitor. A regression equation for each individual was created
using the O2 pulse and heart rate from the skateboard treadmill test.
The heart rate data collected from each field test were entered into
the equation and used to estimate VO2. Oxygen uptakes were
significantly greater across the workloads for the running treadmill
tests when compared to the skateboard treadmill tests (p < 0.05).
The mean VO2 for 30 minutes of skateboarding was estimated to be
62.4±9.4 L. The mean caloric expenditure, assuming a mixed diet, was
302.6±45.9 kcal and mean kcal/min was 10.1±1.5. Across a
progressively increasing workload on a treadmill, these results
indicated that skateboarding was more efficient than running. The
average estimated caloric expenditure of 10.1±1.5 kcal/min,
indicated that skateboarding could provide similar health benefits
compared to other modes of moderately intense aerobic exercise.
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