The primary purpose of a power belt is to increase intra-abdominal pressure, thereby stabilizing the spine and reducing the risk of injury. By bracing the core and maintaining proper alignment, it allows lifters to handle heavier weights with improved form and reduced strain on the lower back.

Power belts typically feature a wide, padded back section that tapers towards the front, ensuring optimal support while allowing freedom of movement. They secure around the waist with a sturdy buckle, Velcro strap, or lever mechanism, providing adjustable tightness to suit individual preferences and lifting needs.