The minimum cuff pressure needed to fully stop arterial blood flow into a limb.
LOP is the individualised, limb-specific pressure at which a pneumatic cuff completely occludes arterial inflow, typically measured via Doppler ultrasound before a blood flow restriction (BFR) training or rehabilitation session. Training or occlusion pressures are then prescribed as a percentage of LOP (commonly 40-80%) rather than using a fixed absolute pressure, since limb circumference and tissue composition vary between individuals and sessions. Because measurement method and equipment can affect the value obtained, LOP should be treated as protocol-specific rather than a fixed physiological constant.
This definition was auto-drafted and is pending editorial review.