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A single bout of resistance exercise does not modify cardiovascular responses during daily activities in patients
Lausanne B C C Rodrigues1, Cláudia L M Forjaz, Aluísio H R A Lima
1aAssociate Graduate Program in Physical Education UPE/UFPB bOswaldo Cruz Hospital, Pernambuco University, Pernambuco cSchool of Physical Education and Sport, University of São Paulo, São Paulo, Brazil dDepartment of Geriatric Medicine, Reynolds Oklahoma Center on Aging, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA.
Objective:
To analyze the posteffects of a single bout of resistance exercise on cardiovascular parameters in patients with peripheral artery disease (PAD).
Design:
Randomized cross-over.
Materials And Methods:
Seventeen PAD patients performed two experimental sessions: control (C) and resistance exercise (R). Both sessions were identical (eight exercises, 3×10 repetitions), except that the R session was performed with an intensity between 5 and 7 in the OMNI-RES scale and the C session was performed without any load. Systolic blood pressure (BP), diastolic BP, heart rate, and rate-pressure product (RPP) were measured for 1 h after the interventions in the laboratory and during 24-h using ambulatory BP monitoring.
Results:
After the R session, systolic BP (greatest reduction: -6±2 mmHg, P<0.01) and RPP (greatest reduction: -888±286 mmHg×bpm; P<0.01) decreased until 50 min after exercise. From the second hour until 23 h after exercise, BP, heart rate, and RPP product were similar (P>0.05) between R and C sessions. BP load, nocturnal BP fall, and morning surge were also similar between R and C sessions (P>0.05).
Conclusion:
A single bout of resistance exercise decreased BP and cardiac work for 1 h after exercise under clinical conditions, and did not modify ambulatory cardiovascular variables during 24 h in patients with PAD.
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