Four-Week Personal-Training Boot Camp for One or Two at J3 Functional Fitness (Up to 84% Off)

Morningside Park

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In a Nutshell

High-energy workouts are tailored to suit each client to build muscle and burn fat with an additional health and nutrition assessment

The Fine Print

Promotional value expires 90 days after purchase. Amount paid never expires. Not valid for clients active within the past 3 month(s). Appointment required, 48 hour advance notice required. Limit 1 per person, may buy 1 additional as gift. Must use promotional value in 1 visit. Valid only for option purchased. All goods or services must be used by the same person. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.

Choose Between Two Options

  • $29 for a four-week personal-training boot camp for one ($140 value)
  • $45 for a four-week personal-training boot camp for two ($280 value)
  • Boot camp includes a consultation and nutritional-guidelines assessment

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

Wonderful , priceless the best investment I have made in a long time.
Stephanie R. · September 17, 2015
Merchant Location Map
  1. 1

    Morningside Park

    3400 West Arbor Vitae Street

    Inglewood, CA 90305

    +14248004946

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Get your body bikini-ready
Be well with exercise and balanced nutrition
15% Bonus Savings
Get an extra 15% off local restaurants, spas, salons, and more to use within 48 hours of your Goods order! See details
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