What You'll Get
- 5 Fitness-Class Punchcard
- 3-Month Unlimited Gym-Only Membership With Scan Card
Mini-Muscles: Why Don’t Women Bulk Up When They Lift Weights?
Ever wonder why workouts often do different things for women and men? Find out with Groupon’s answer.
Women’s strength-training classes often promise results such as a toned, slim, or defined body—but they almost never promise to add bulk. Yet these very same workouts do just that for men. That’s because although a rigorous strength-training routine can help a woman boost her endurance and lower her body-fat percentage, it won’t help her develop big, bulky muscles (not without anabolic steroids, anyway). Just look at the world of professional weightlifting—successful women will squat many times their own weight, but won’t achieve the same physical proportions as their male counterparts.
One key factor is estrogen. The hormone, which is present in both men and women at different levels, works hard to limit the body’s capacity to develop new muscle tissue. This has a practical explanation. Women’s bodies have evolved to retain the ample fat stores needed to ensure fertility and successful pregnancy. Men’s bodies don’t have the same obligation, and so they possess far larger quantities of testosterone—the muscle-building hormone—than women do. This is an example of sexual dimorphism, a physical difference between males and females of the same species, not unlike the male peacock’s feathers, the lion’s mane, or the gander’s jaunty hat collection.
The Fine Print
Promotional value expires 120 days after purchase. Amount paid never expires. Not valid for clients active within the past 6 month(s). Registration required. Limit 1 per person, may buy 1 additional as gift. Limit 1 per visit. Valid only for option purchased. All goods or services must be used by the same person. Reservation required for TRX and Spin classes. Must be 18 or older. Must sign waiver. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.
About Pro Gym
The instructors at Pro Gym understand that different bodies require different workouts. That’s why they frequently change up exercise routines in many of their all-ages fitness classes. Students can sculpt their cores in kickboxing sessions, pedal at varying resistance levels in spin classes, get a total body workout in TRX Suspension Training, and work with stability balls, free weights, and power bands in cardio classes. High-intensity interval training and Zumba classes tone muscles from head to toe. Outside of classes, the gym helps bodies stay ready to smash open stubborn pickle jars with free weights, weight-training equipment, and stationary bikes, and it keeps children busy with a supervised play area.