Effects of Blood Flow Restriction Exercises on Lumbar Muscle Endurance and Balance in Healthy Young Adults

Condition(s) studied

Investigational drug(s) / intervention(s)

Blood Flow Restriction Sit-to-Stand Exercise: Participants perform sit-to-stand (STS) exercises with blood flow restriction applied using a pneumatic cuff placed on the thigh. Cuff pressure is set at 60-80% of the participant's systolic blood pressure. Sessions are supervised by a physiotherapist twice per week for six weeks.

Sit-to-Stand Exercise without Blood Flow Restriction: Participants perform the same sit-to-stand (STS) exercise protocol as the experimental group, but without blood flow restriction. Sessions are supervised twice weekly for six weeks, and outcomes are assessed before and after the program.

Study summary

This study aims to examine the effects of blood flow restriction (BFR) exercises on back muscle endurance and balance in healthy young adults. BFR is a training method that involves applying controlled pressure to the limbs with a cuff while performing simple exercises. It has been shown to improve muscle strength and endurance even at low exercise loads, reducing stress on the joints.

In this study, participants aged 20 to 25 years will be randomly assigned to two groups. One group will perform sit-to-stand (STS) exercises combined with BFR, while the other group will perform the same exercises without BFR. The exercise program will last 6 weeks, with 2 sessions per week.

Before and after the program, participants will be assessed for:

Lumbar extensor muscle endurance (using the Biering-Sørensen test)

Balance performance (using a computerized balance platform)

Physiological responses such as oxygen saturation, heart rate, and blood pressure

The purpose of this research is to determine whether BFR exercises improve spinal muscle endurance and balance more effectively than standard sit-to-stand exercises. The results may provide new insights into the use of BFR training as a safe and practical strategy for improving posture, preventing back problems, and enhancing physical performance in young adults.

Eligibility

Primary outcome measure(s)

• Lumbar Extensor Muscle Endurance — Baseline and after 6 weeks of intervention
  Endurance of the lumbar extensor muscles will be assessed using the Biering-Sørensen Test. Participants maintain the upper body in a horizontal position while lying prone with the pelvis stabilized. The test duration (in seconds) until trunk decline \>5-10° will be recorded.
• Postural Balance Performance — Baseline and after 6 weeks of intervention
  Balance performance will be evaluated using a computerized balance platform (TechnoBody™ Pro-Kin). Both static and dynamic balance parameters will be recorded. Outcome measures include sway area (cm²), sway velocity (cm/s), and postural stability index.

Trial sites (1)

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