5 or 10 Partner Training Sessions at Institute For Human Performance (I.H.P) (70% Off)

Deerfield

from $225
Buy!
Value Discount You Save
$750 70% $525
Limited time remaining!

It's helpful to have an external source of motivation, such as a personal trainer or a machine that wallops you with pillows until you wake up. Get a helping hand with this Groupon.

Choose Between Two Options

  • $225 for 5 partner training sessions ($750 value)
  • $375 for 10 partner training sessions ($1,250 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.

  1. 1

    Deerfield

    158 S. Waukegan Rd.

    Deerfield, Illinois 60015

    773-807-3349

    Get Directions

In a Nutshell

Trainer and natural body-builder with more than eight years of experience customizes workouts inside a 10,000 square-foot facility

The Fine Print

Expires 180 days after purchase. Appointment required, 48 hour advance notice required. Limit 1 per person, may buy 1 additional as gift. Limit 1 per visit. Valid only for option purchased. All goods or services must be used by the same person. Valid only with Niles Engerman. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.

For those who take care of their overall well-being with exercise, yoga, and balanced nutrition
Warm weather essentials that prep bods for the sun with tanning, toning, and beach-ready apparel
Choose your deal:
5 partner training sessions
$750 list price - 70% off - Save $525
$225
10 partner training sessions
$1,250 list price - 70% off - Save $875
$375