Sailors, DoD personnel and civilians perform kettle bell swings during a total body resistance exercise (TRX) class led by Bryan Boon, fitness specialist at Seismos fitness center on Naval Station Everett (NSE), in court 4 of Seismos fitness center at NSE. Seismos staff offers several classes throughout the week such as water aerobics, spin, indoor cycling and TRX classes to encourage Sailors, DoD personnel and civilians to stay active and committed to fun and healthy lifestyle. (U.S. Navy photo by Mass Communication Specialist 3rd Class Jonathan A. Colon/ Released) ..