$43 for 30-Day Membership with Group Training Sessions at Eos Fitness- Inland Empire ($269 Value)

Eos Fitness- Inland Empire Multiple Locations

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$43 $49
Extra $6 Off Ends 10/16
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$269 84% $226
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In a Nutshell

Trainers help clients to reach their personal fitness goals in a variety of classes aimed at building muscle and shedding weight

The Fine Print

Promotional value expires 120 days after purchase. Amount paid never expires. Limit 1 per person, may buy 1 additional as gift. Limit 1 per visit. Valid only at listed locations. Must activate by expiration date on your voucher, membership expires 30 days from activation date. Must sign waiver. Not valid for current members. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.

The Deal

  • $43 for 30 days of unlimited United Performance small group training classes and a 30-day gym membership ($269 value)

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.

Customer Reviews

good workout with the personal trainers
Susan W. · April 14, 2016

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