Twinfitness

Identical twins Kristie and Michelle put their heads, biceps, and 24 years of personal-training experience together to found Twin Fitness. Their nutrition-science education and professional experience in IFBB competition qualifies them to lead their clients to sturdier health and firmer physiques. Each program, overseen by one of the twins or their certified staff, kicks off with body-fat testing, a fitness evaluation, and a one-on-one goal-setting session to plot a training course and draft a map indicating where to bury all their junk food. Workout routines vary, incorporating dumbbells, target mitts, Bosu balls, and cardio work, performed outdoors whenever possible.

The studio's instructors excel both in giving one-on-one guidance and in forming motivating communities in small group classes of three to five people. Along the way, they recommend a menu of healthy meals and slimming television shows to supplement each trainee's fitness regimen.