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Updated: May 31, 2026

Doppler Ultrasound-Based Leg Blood Flow Assessment During Single-Leg Knee-Extensor Exercise in an Uncontrolled Setting

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Passive Blood Flow Restriction Accelerates Muscle Recovery After Exercise-Induced Muscle Damage in Healthy,

Mason A Howard¹, Sean M Lubiak¹, Jeffrey T Schmidt^1,2

¹Division of Kinesiology, School of Kinesiology & Rehabilitation Sciences, University of Central Florida, Orlando, Florida.

Journal of Strength and Conditioning Research

|May 29, 2026

Summary

Passive blood flow restriction (pBFR) significantly speeds up muscle recovery in females after exercise-induced muscle damage (EIMD). This method enhances the return of muscle strength and range of motion, aiding faster functional recovery.

Keywords:

exercise-induced muscle damage passive blood flow restriction recovery

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Doppler Ultrasound-Based Leg Blood Flow Assessment During Single-Leg Knee-Extensor Exercise in an Uncontrolled Setting

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Published on: December 15, 2023

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Published on: September 10, 2014

Area of Science:

Exercise Physiology
Sports Science
Rehabilitation

Background:

Exercise-induced muscle damage (EIMD) is a common outcome of strenuous physical activity.
Effective recovery strategies are crucial for athletes and recreationally active individuals.
Passive blood flow restriction (pBFR) is an emerging technique for modulating physiological responses to exercise.

Purpose of the Study:

To investigate the efficacy of passive blood flow restriction (pBFR) in accelerating recovery from exercise-induced muscle damage (EIMD).
To compare the effects of pBFR versus sham treatment on various indices of muscle damage and recovery in healthy females.

Main Methods:

Eighteen recreationally active females underwent a muscle-damaging leg extension protocol.
Each leg was randomly assigned to receive pBFR (80% occlusion pressure) or sham (20 mmHg) treatment.
Muscle soreness, limb circumference, range of motion (ROM), pain pressure threshold, and maximal voluntary isometric contraction (MVIC) torque were assessed at multiple time points post-EIMD.

Main Results:

pBFR application led to a faster recovery rate for MVIC torque and ROM compared to the sham condition.
Pain pressure threshold was significantly higher in the pBFR group.
While muscle soreness and limb circumference showed recovery trends, pBFR demonstrated a notable advantage in restoring muscle function (MVIC and ROM).

Conclusions:

Passive blood flow restriction (pBFR) is an effective strategy for accelerating muscle functional recovery after exercise-induced muscle damage in females.
pBFR may enhance the rehabilitation process by speeding up the return of muscle strength and range of motion.
Further research could explore optimal pBFR protocols for different populations and types of muscle damage.