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Infinity Fitness AZ

One Month of Adult Fitness Classes for One or Two or Kid's Classes for One at Infinity Fitness AZ (Up to 82% Off)

Up to 82% Off
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Highlights

Adult classes focus on weight loss and muscle gain, and classes for kids develop speed, agility, and confidence.

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What You'll Get

Choose from Three Options

  • $33 for one month of unlimited adult fitness classes for one ($159 value)
  • $56 for one month of unlimited adult fitness classes for two ($318 value)
  • $26 for one month of unlimited kid’s General Physical Preparedness or Sports Performance classes for one ($150 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.

The Fine Print

Promotional value expires 90 days after purchase. Amount paid never expires. Limit 1 per person, may buy 1 additional as gift. Valid only for option purchased. Limit 1 per visit. Must be 7 or older. Must sign waiver. New clients only. Can not be combined with any other offer. Walk ins are welcomed. Not valid for summer youth program Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.

About Infinity Fitness AZ

Infinity Fitness AZ

Gym, Health Club
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