Acute Cardiovascular and Hemodynamic Responses to Low Intensity Eccentric Resistance Exercise with Blood Flow...

Area of Science:

• Exercise Physiology
• Cardiovascular Rehabilitation

Background:

• Low intensity (LI) resistance exercise (RE), with or without blood flow restriction (BFR), is explored for cardiovascular benefits.
• LI RE and BFR may offer novel approaches for cardiovascular improvement and rehabilitation.

Purpose of the Study:

• To examine acute effects of LI eccentric RE with and without BFR.
• Investigate impacts on heart rate (HR), rate pressure product (RPP), blood pressure (BP), oxygen saturation (SpO2), and perceived exertion (RPE).

Main Methods:

• A semi-experimental study involving 16 young adults.
• Participants performed LI eccentric RE (30% MVC) with and without BFR.

Main Results:

• HR, RPP, and RPE increased significantly in both groups.
• Systolic BP (SBP) and diastolic BP (DBP) increased significantly only with BFR.
• Mean arterial pressure (MAP) increased during exercise without BFR; SpO2 remained unchanged.

Conclusions:

• LI eccentric RE with BFR positively modulated hemodynamic and cardiovascular responses.
• This combination is a promising strategy for future research, particularly for time-efficient interventions.
• The exercise protocol effectively altered cardiovascular parameters within normal physiological ranges.