Catherine Cram is an exercise physiologist who specializes in prenatal and postpartum fitness. Her consulting company, Comprehensive Fitness Consulting, LLC, provides maternal fitness certificate training courses for health and fitness professionals. She’s an expert advisor to and writes for Baby Years, Pregnancy, Women’s Health and Fitness, and iparenting.com. Catherine has been featured in prenatal fitness articles for Fit Pregnancy, Parenting, Glamour, Babytalk, and The American Journal of Medicine and Sports, and is a contributing author of Women’s Health Care in Physical Therapy: Principles and Practices for Rehabilitation Specialists (Lippincott Williams & Wilkins). You can contact her at compfc@aol.com.

Tere Stouffer Drenth is both a full-time writer and a semiprofessional runner who works, trains, hikes, and lives in northern Michigan. A former crosscountry All-American, Tere (which rhymes with Mary) writes about fitness and the outdoors in the hope that people of all ages and backgrounds will challenge themselves physically and reap the many rewards of exercise. She is the author of Marathon Training For Dummies (Wiley) and several other books. You can reach her at tdrenth@earthlink.net.