EXPLAINING_ERA... on Instagram: "Olympic swimmers train in pools designed to copy real race conditions. Coaches adjust current speed to match target pace or push beyond it to build endurance and power. . . Flow changes during practice prepare you for sudden surges and fast finishes. Turbulence is added to recreate the unpredictable pull of open water. Resistance features strengthen your stroke against uneven currents. . . Water temperature is set to match the event, whether cold triathlon lakes