10 Fitness Classes, or One Month of Unlimited Fitness Classes at New Summit Fitness (Up to 65% Off)

Lake Grove

Value Discount You Save
$140 65% $91
Give as a Gift
Limited quantity available
Over 10 bought

In a Nutshell

Small-group fitness classes pump up heart rates and build lean muscle through boot camps, TRX suspension training, or indoor cycling

The Fine Print

Promotional value expires 90 days after purchase. Amount paid never expires. May be repurchased every 180 days. New customers only or those who haven't been active in past 12 months. Registration 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. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.

Choose Between Two Options

  • $49 for 10 fitness classes ($140 value)
  • $59 for one month of unlimited fitness classes ($149 value)
  • View the schedule.

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.

Customer Reviews

Great experience. Lunden was very educational and made sure to cover everything we might need to know without assuming we would know any of the details. Would definitely recommend others to visit.
Lindsey R. · August 17, 2015
So much fun, I immediately came home and purchased a class package. Don't forget sunscreen!
Krissy · August 6, 2015
Merchant Location Map
  1. 1

    Lake Grove

    15630 Boones Ferry Road

    Ste 3

    Lake Oswego, OR 97035

    +15036833851

    Get Directions

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