A tri-set, explained personal trainer Jeff Dettelis of Southtowns Fitness Center, is three different exercises done in a row without rest in between. "Once you have completed the three exercises, you ...
I worked out with Luke Worthington, who has trained Dakota Johnson, Winnie Harlow, and Naomi Campbell. Worthington's "3 x 52" philosophy is three full-body workouts a week, with three tri-sets in each ...