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High‐intensity exercise promotes postexercise hypotension greater than moderate intensity in elderly hypertensive individuals
Author(s) -
Brito Aline de F.,
Oliveira Caio Victor C.,
Santos Maria do Socorro B.,
Santos Amilton da C.
Publication year - 2014
Publication title -
clinical physiology and functional imaging
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.608
H-Index - 67
eISSN - 1475-097X
pISSN - 1475-0961
DOI - 10.1111/cpf.12074
Subject(s) - medicine , blood pressure , cardiology , forearm , diastole , resistance training , vascular resistance , physical therapy , intensity (physics) , surgery , physics , quantum mechanics
Summary Objective To evaluate the effects of high‐intensity resistance exercise on postexercise hypotension ( PEH ) and forearm vascular resistance ( FVR ) in the hypertensive elderly. Methodology The study was conducted with ten hypertensive elderly individuals (65 ± 3 years, 28·7 ± 3 kg m −2 ). They were subjected to three experimental sessions: control session ( SC ), exercise 50% ( S 50%) and 80% ( S 80%) of 1 RM . For each session, subjects were evaluated pre‐and postintervention. In the preintervention, the blood pressure ( BP ) and FVR were measured after 10 min of rest. Thereafter, they were taken to the gym to perform the exercise sessions or remained at rest in each of the equipment during the same time. Both S 50% and S 80% were composed of a set of ten repetitions of ten exercises, with an interval of 90 s between exercises. Subsequently, the FVR and BP measurements were again performed at 10, 30, 50, 70 and 90 min of recovery (postintervention). Results The PEH was greater in S 80% compared with S 50%, with the lower value of BP being found at 90 min of recovery for the two sessions (systolic BP : 115 ± 3,0 mmHg versus 124 ± 5 mmHg; diastolic BP : 75 ± 5 mmHg versus 86 ± 3 mmHg and mean BP : 87 ± 3 mmHg versus 95 ± 4 mmHg, respectively). Concomitantly, the FVR also decreased significantly in both sessions, this reduction being more evident in S 80% ( P <0·05). Conclusion High‐intensity resistance exercise was effective in promoting PEH , this phenomenon being accompanied by a reduction in FVR within the first minute of recovery in the hypertensive elderly.