Cardiovascular responses during and after aerobic and strength exercises with blood flow restriction in older adults

Amanda Veiga Sardeli, Marina Lívia Venturini Ferreira, Lucas do Carmo Santos, Cláudia Regina Cavaglieri, Mara Patrícia Traina Chacon-Mikahil

Research output: Contribution to journalArticlepeer-review

Abstract

Objectives: In addition to the increase in muscle mass and strength promoted by resistance exercise with blood flow restriction (RE-BFR), aerobic exercise with BFR (AE-BFR) improves aerobic fitness. However, acute cardiovascular responses to these exercise protocols are quite unknown and a comparison between RE-BFR and AE-BFR has never been shown.

Equipment and methods: A cross-over design was used to compare the acute cardiovascular effects of RE-BFR and AE-BFR in healthy older adults. Seventeen older adults underwent the RE-BFR protocol in leg press 45°, with 30% of 1RM and AE-BFR protocol in the treadmill, with 40% of VO2 max; both protocols included continued BFR of 50% until the end of the exercise. The cardiovascular variables were continually recorded from 15 min before exercise until 30 min post each exercise session, thorough finger photoplethysmography.

Results: During the interventions no adverse events were reported. The AE-BFR caused lower systolic and diastolic blood pressure peaks, faster heart rate recovery, without increase peripheral vascular resistance, while had a higher cardiac output peak.
Original languageEnglish
JournalScience & Sports
Early online date23 Dec 2021
DOIs
Publication statusE-pub ahead of print - 23 Dec 2021

Keywords

  • Cardiovascular System
  • Exercise
  • Blood Circulation
  • Aging

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