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Advisor(s)
Abstract(s)
The purpose of this study was to compare the physiological
adaptations to basic head-out aquatic exercises with different
levels of body immersion. Sixteen young and clinically
healthy subjects (9 women and 7 men) volunteered to participate
in this study. Each subject performed 3 repetitions (on land, immersed
to the hip, and immersed to the breast) of the aquatic
exercise ‘‘rocking horse’’ for 6 minutes. The rating of perceived
effort (RPE), the maximal heart rate achieved during the exercitation
(HRmax), the percentage of the maximal theoretical
heart rate estimated (%HRmax), the peak of oxygen uptake during
the exercise (V˙ O2peak), and the energy expenditure (EE)
were evaluated. The RPE was significantly higher when exercising
immersed to the hip than on land ( p 0.01) and immersed
to the breast ( p 0.03). The HRmax and %HRmax were
significantly lower when exercising with immersion to the breast
than on land ( p 0.01) and with immersion to the hip ( p
0.01). The V˙ O2peak was significantly different between all conditions.
The lower mean value was verified when exercising immersed
to the breast, followed by immersion to the hip and on
land. The EE was significantly higher when performing aquatic
exercises on land than when immersed to the hip ( p 0.02) and
the breast ( p 0.01). So, physiological responses when exercising
immersed to the hip are higher than when immersed to the
breast. The physiological responses when exercising on land are
higher than when exercising with immersion to the hip and to
the breast.
Description
Keywords
Basic aquatic exercises Rating of perceived effort Heart rate Oxygen uptake Energy expenditure
Citation
Barbosa, Tiago M.; Garrido, F.; Bragada, José A. (2007). Physiological adaptations to head-out aquatic exercises with different levels of body immersion. Journal of Strength and Conditioning Research. ISSN 1064-8011. 21:4, p. 1255-1259