One- or Two-Month Fit Class Membership with Optional Metrics Test at Set Performance (Up to 76% Off)

Jacksonville

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Choose from Three Options

  • $39 for a one-month fit class membership ($160 value)
  • $89 for a two-month fit class membership ($320 value)
  • $119 for a two-month fit class membership and metrix composition test ($449 value)

The metrix composition test measures each client's body fat and weight distribution.

The fitness classes at Set Performance will leave you with more muscle or better tone. Read on to learn exactly how that happens.

Building Muscle: Cells on the Move

Bulky upper-body muscles might have hindered early humans who had to chase their prey across plains, but they 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, 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.

Set Performance

The next time your favorite sports team nabs a win, you may have Jerrian Sanders to thank. That's because the owner of Set Performance has trained Division I, MLB, and NFL athletes including Reggie Nelson, Billy Butler, and Marcus Stroud. When Jerrian's not helping the pros up their game on the field, he's running sports programs that help budding athletes increase their endurance, agility, and strength, and he leads boot camps and Weekend Warrior classes for adults who want to stay in fighting shape. No matter who he's working with, Jerrian challenges everyone to reach their own personal goals, whether they want to run a marathon or play full-contact chess professionally.

  1. A

    Jacksonville

    14129 Beach Blvd

    Jacksonville, Florida 32250

    904-992-2001

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In a Nutshell

Get active during fitness classes designed to address your personal goals and abilities; metrix test measures weight distribution

The Fine Print

Expires 90 days after purchase. Limit 1 per person, may buy 1 additional as gift. Valid only for option purchased. Must sign waiver. Reservation required. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.

In and Around Jacksonville Beach

For those who take care of their overall well-being with exercise, yoga, and balanced nutrition

All Locations

  • Jacksonville

    14129 Beach Blvd

    Jacksonville, Florida 32250

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