True strength is tested by real-life scenarios, such as your ability to push a truck out of a ditch or throw out that banged-up old set of weights you grew up with. Deal with some pretty heavy stuff with this Groupon.
Choose from Three Options
- $29 for one month of unlimited adult fitness classes for one ($159 value)
- $49 for one month of unlimited adult fitness classes for two ($318 value)
- $25 for one month of unlimited kid's General Physical Preparedness classes for one ($135 value)
- Click to see the full class schedules.
Building Muscle: Cells on the Move
Read on to learn exactly how fitness classes leave you with more muscle or better tone.
Bulky upper-body muscles might have hindered early humans who had to chase their prey across the plains, but it could help those who often had to climb trees to adjust their satellite dishes. That’s why the body builds muscle according mostly to use: do enough curls, and the biceps expand. As anyone who has experienced post-workout soreness could intuit, those curls are actually a form of controlled damage, making thousands of miniscule tears to the muscle tissue that beckon autoimmune cells to show up alongside testosterone and other hormones. The white blood cells help switch on satellite cells, which are similar to stem cells. Before they're activated, satellite cells aren't doing much—instead, they lie dormant around muscle fibers until they're called into action to repair torn tissue.
This isn't the only kind of cellular transformation at work in growing muscles. Long muscle cells, which contain several nuclei, can also begin to change type after a workout. Certain kinds of muscle fibers are equipped to handle brief bursts of effort but will quickly become tired if asked to do more intense work. These are the first to disappear as someone starts an exercise routine, as they're converted into fibers with more endurance. This principle is so dramatic that a sports scientist can generally tell whether someone is a professional athlete or a professional mattress model by examining a minute sample of muscle tissue.
Tips from Groupon Customers
“Awesome trainers and nice environment. ”
“Great place to work out. Clean, friendly, great trainers and no silly machines! Yeah. ”
“Great workout with trainers that are very knowledgeable! The facility is spotless and offers a huge variety of workouts.”
7498 E Monte Cristo Ave. Ste 102
Scottsdale, Arizona 85260