Effects of External Abdominal Pressure Support on Dynamic Balance: A Randomized Crossover Study

Area of Science:

• Biomechanics
• Human Movement Science
• Sports Medicine

Background:

• Abdominal pressure is crucial for lumbar spine protection and postural balance.
• Dynamic balance is linked to movement stability, load adaptation, and injury risk reduction.
• The impact of external abdominal pressure support (APS) on balance control is not well understood.

Purpose of the Study:

• To investigate the effects of external APS on dynamic balance control.
• To assess whether external APS can enhance postural stability.

Main Methods:

• A randomized crossover study involving 31 healthy young adults.
• External APS was applied using an inflatable cuff belt around the trunk.
• The modified Star Excursion Balance Test (mSEBT) was used to measure dynamic balance under APS and non-APS conditions.

Main Results:

• Posterolateral, posteromedial, and composite mSEBT scores were significantly higher with APS (p < 0.001).
• External APS demonstrated immediate improvement in dynamic balance.
• APS enhanced stability during anterior trunk tilt, a movement that shifts the center of gravity forward.

Conclusions:

• External APS is an effective intervention for enhancing dynamic balance.
• This support system improves postural control and may reduce the risk of falls or injuries related to balance deficits.