“A long muscle is a strong muscle”—use this trainer’s full-body mobility flow before your next workout to unlock greater strength

Woman performing a lateral lunge on a black exercise mat on a tiled living room floor .

Personal trainer Jack Claxton has a mantra he repeats before every workout: “A long muscle is a strong muscle.”

It’s a reminder—both to himself and his clients at David Lloyd Clubs—to always mobilize before making a beeline for the weights rack.