Presentation Title

Effects of Continuous and Intermittent Blood Flow Restriction on Physiological Responses during Aerobic Exercise

Presentation Type

Poster

Full Name of Faculty Mentor

Justin Guilkey, Kinesiology

Major

Exercise and Sport Science

Presentation Abstract

Blood flow restriction (BFR) during exercise improves cardiovascular fitness with lower work-rates compared to traditional exercise, but differences in continuous (CONT-BFR) or intermittent BFR (INT-BFR) are unknown. This study examines physiological responses to light intensity with no BFR (LIIE), INT-BFR, CONT-BFR, and high-intensity interval exercise (HIIE). Subjects will participate in four trials; BFR-INT, CONT-BFR, LIIE and HIIE. Trials consist of five two-minute intervals with a one-minute recovery interval. During CONT-BFR, cuffs will continuously be inflated at 60% of limb occlusion pressure; INT-BFR is similar except cuffs deflate during recovery intervals. Each trial blood pressure, cardiac output, oxygen uptake, and muscle oxygenation will be measured. Oxygen consumption and cardiac output should be similar across light-intensity trials regardless of BFR, but lower than HIIE. Blood pressure and decline in muscle oxygenation should be the greater in the CONT-BFR compared to INT-BFR; BFR trials will be greater than LIIE but less than HIIE.

Location

Poster Session 1

Start Date

21-4-2021 12:00 PM

End Date

21-4-2021 2:00 PM

Disciplines

Sports Sciences

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Apr 21st, 12:00 PM Apr 21st, 2:00 PM

Effects of Continuous and Intermittent Blood Flow Restriction on Physiological Responses during Aerobic Exercise

Poster Session 1

Blood flow restriction (BFR) during exercise improves cardiovascular fitness with lower work-rates compared to traditional exercise, but differences in continuous (CONT-BFR) or intermittent BFR (INT-BFR) are unknown. This study examines physiological responses to light intensity with no BFR (LIIE), INT-BFR, CONT-BFR, and high-intensity interval exercise (HIIE). Subjects will participate in four trials; BFR-INT, CONT-BFR, LIIE and HIIE. Trials consist of five two-minute intervals with a one-minute recovery interval. During CONT-BFR, cuffs will continuously be inflated at 60% of limb occlusion pressure; INT-BFR is similar except cuffs deflate during recovery intervals. Each trial blood pressure, cardiac output, oxygen uptake, and muscle oxygenation will be measured. Oxygen consumption and cardiac output should be similar across light-intensity trials regardless of BFR, but lower than HIIE. Blood pressure and decline in muscle oxygenation should be the greater in the CONT-BFR compared to INT-BFR; BFR trials will be greater than LIIE but less than HIIE.

https://digitalcommons.coastal.edu/ugrc/test1/test1track/10