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Continuous blood pressure response at different intensities in leg press exercise

DE SOUSA NM; MAGOSSO RF; DIPP T; PLENTZ RD; MARSON RA; MONTAGNOLLI AN; MARTINS RA; PEREZ SE; BALDISSERA V
EUR J PREV CARDIOL , 2014, vol. 21, n° 11, p. 1324-1331
Doc n°: 171580
Localisation : Rééducation CHU Brabois Adultes

D.O.I. : http://dx.doi.org/DOI:10.1177/2047487313497863
Descripteurs : FB311 - HYPERTENSION ARTERIELLE, ND - EXERCICE PHYSIQUE

Generally, the evaluation of the blood pressure response to
resistance exercise has been limited to the evaluation of discontinuous casual
blood pressure monitoring, often measured at the end of the exercise. DESIGN: To
continuously evaluate the blood pressure response at different intensities of leg
press exercise with the same duration and number of repetitions. METHODS: Seven
normotensive healthy men performed an incremental test on the leg press machine
at relative intensities of one repetition maximum (1RM). The blood pressure and
heart rate were measured simultaneously to the incremental exercise by a
photoplethysmographic method. RESULTS: The mean +/- SD peak values of the heart
rate, diastolic blood pressure (DBP) and systolic blood pressure (SBP) were
obtained on 70% of 1RM and were 145 +/- 20 bpm, 113.1 +/- 15.4 mmHg, and 192.4
+/- 20.0 mmHg, respectively. The SBP was characterized by a decrease followed by
an increase during the sets of exercise. The decrease in the SBP was 12-22 mmHg
and took approximately 25 seconds to reach the minimum value before the increase.
It was observed for all participants in most of the intensities. The rate of
increase in the SBP was not statistically different between the intensities.
CONCLUSIONS: Both duration and intensity of exercise have an impact on the blood
pressure response. Above 30% of 1RM, the SBP decreases in approximately 20
seconds and starts to increase until the end of the set of leg press exercise.
CI - (c) The European Society of Cardiology 2013 Reprints and permissions:
sagepub.co.uk/journalsPermissions.nav.

Langue : ANGLAIS

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