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$35 for Two-Week Unlimited Membership and One Foundation Class at Root 18 CrossFit ($60 Value)

Cross 18

100% of 28 customers recommend

Value Discount You Save
$60 42% $25
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In a Nutshell

CrossFit classes feature a workout of the day that aims to strengthen muscles and optimize functional movement

The Fine Print

Expires 60 days after purchase. Limit 1 per person, may buy 1 additional as gift. Valid only for option purchased. Must be 13 or older. Must sign waiver. Classes must be used by the same person. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.

Like a prison break, a workout involves running, climbing, rowing a boat, and playing a quick game of racquetball. Break free from routine with this Groupon.

The Deal

  • $35 for one foundation class plus two weeks unlimited CrossFit ($60 value)

Building Endurance: Helping Muscles Breathe Easier

If you stick with an exercise program, every workout gets a little easier. Learn how your body makes that happen with Groupon’s guide to building endurance.

A few days into a new workout routine, you begin to notice changes. Your muscles expand. Perhaps your weight drops. But the changes that increase the body’s endurance first take place on a much smaller scale. When you exert yourself for long periods of time, your body starts to populate each muscle cell with more mitochondria, the organelles that fuel muscle movements. They do this by producing adenosine triphosphate (ATP), the muscle’s basic fuel source. When a muscle contracts, it breaks the bonds of ATP molecules, creating a burst of energy but also draining stockpiles of this essential propellant.

In order to whip up a batch of ATP, the mitochondria need lots and lots of oxygen. Helpfully, endurance training makes it easier for oxygen to travel from the lungs to the heart to the muscles. It’s long been noted that the hearts of star endurance athletes tend to have extra-large left ventricles, which can pump more oxygenated blood through the body with every beat. Once blood reaches muscle cells whose mitochondria have been enhanced by previous endurance exercise, the cells will be able to extract oxygen and use it to produce ATP far more efficiently. Scientists assess this efficiency by a measure known as VO2max, the maximum volume of oxygen or Double Stuf Oreos that a person’s muscles can consume per minute.

During super-intense exercise, the body stops being able to produce enough ATP from oxygen intake alone. Instead, it reaches for stored glucose to get the ingredients it needs, and, as a side effect, begins to leave behind more lactic acid than the cells can immediately process. (Processing lactic acid itself requires oxygen, and all available supplies are already being used by the muscles and the brain.) The point at which this happens is the lactic threshold, and beyond it, athletes feel that they’re nearly done for the day.

Fortunately, this limit too can be changed. As the body adapts more and more to endurance exercise, it prolongs the amount of time you have before shifting pH levels in the muscles bring on the familiar feelings of fatigue, burning, and a dramatic drop in strength.

Root 18 CrossFit

The trainers at Root 18 CrossFit, formerly known as Cross 18, are dedicated to body transformation and meeting the goals of their clients through cross training, nutritional counseling, and stress-management clinics. They help those struggling with weight loss, as well as those working to stay in shape or achieve higher fitness levels, through daily workouts that incorporate everything from planks and rope-climbing to the use of resistance bands and gymnastics rings. By changing up the routines each time, they help stave off boredom while maintaining focus on achieving goals. The team also has classes designed to ease in newcomers, as well as classes for teens.


Tips

  • “Great coaches, friendly athletes, great atmosphere”

  • “hurt so good!”

  • “It just a starter for me but it would be nice if facility is little bigger or less people. It's pretty overcrowded. ”

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    Cross 18

    600 W Liberty St.

    Medina, OH 44256

    Get Directions

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