Characterization and Risk of Maximal Head-Out Aquatic Exercises
Ines Goncalves1, Pedro Figueiredo2, Joao Paulo Vilas-Boas2, Ricardo J. Fernandes2, Susana Soares2, *
Identifiers and Pagination:Year: 2012
First Page: 134
Last Page: 140
Publisher Id: TOSSJ-5-134
Article History:Received Date: 05/04/2012
Revision Received Date: 20/06/2012
Acceptance Date: 21/06/2012
Electronic publication date: 19/10/2012
Collection year: 2012
open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
The present study aims to characterize maximal continuous and intermittent efforts in head-out of water aquatic exercise and to determine the risk associated with this type of exercises by healthy persons. Ten healthy women (38.3 ± 9.4 years; 160.2 ± 6.2 cm; 50.0 ± 8.5 kg) experienced in head-out aquatic exercise participated in this study. Two maximal exercises of (I) 7 min continuous and (II) 3x30 sec leg kick, with 30 sec interval were performed with a two days rest interval. The Rate of Perceived Exertion (I: 19.8 ± 0.4 and II: 19.4 ± 1.0) and the heart rate values (I: 184.9 ± 1.4 and II: 178.2 ± 10.4 bpm) confirmed that both exercises were maximal. The blood lactate concentration was high after exercise in both protocols (I: 12.0 ± 3.4 mmol.kg-1; II: 10.7 ± 2.7 mmol.kg-1). The systolic blood pressure was higher after both exercises (I: 119.9 ± 19.2 and II: 138.7 ± 15.5 mmHg) whereas diastolic blood pressure was lower (I: 52.6 ± 13.4 and II: 47.8 ± 9.7 mmHg). The mean blood pressure at rest (I: 88.8 ± 12.2 and II: 79.3 ± 8.1 mmHg) and after exercise (I: 83.4 ± 14.4 and II: 78.1 ± 9.8 mmHg) was similar. The higher diastolic blood pressure and double product (I: 26188.2 ± 3955.1 and II: 21899.1 ± 2696.4 mmHg.bpm) for maximal continuous exercise revealed high cardiac effort. Maximal intensity exercises could be safely used in head-out aquatic exercise classes with healthy participants.