$31 for 10 Drop-In Fitness Classes at Kaia F.I.T. OC ($175 Value)

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Sale Ends 12:51:22
Up to 82% Off

Customer Reviews

18 Ratings

Great workout, great people!
Tina B. · June 20, 2017
I really enjoy training at Kaia. The trainers keep me motivated throughout the workout, pay attention to correct posture and form to avoid any injury, and explain the exercises with different levels of challenge so you can pick the one that will work best for you. All workouts are different and fun. Good music and very positive environment.
Leyda L. · March 30, 2017
I felt so welcome the moment I walked in to Kaia- the staff, and the clients have built such a wonderfully fun, warm, welcoming environment. The work out routines are tough if you are new but they let you modify and build up your strength and support you along the way. I would definitely recommend Kaia - great for women of all ages and ability.
Jill P. · March 13, 2016

What You'll Get


The Deal

  • $31 for 10 drop-in fitness classes ($175 value)
  • Click here to see 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.

The Fine Print


Promotional value expires 90 days after purchase. Amount paid never expires. Registration required. Must activate by expiration date on voucher; membership expires 30 days from activation date. Limit 1 per person, may buy 1 additional as gift. May redeem across visits. Valid only for option purchased. All goods or services must be used by the same person. "I Kan Run" class is not included. Valid only for clients who have not attended within the past 12 months. Valid for women only. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.

About Kaia F.I.T. OC


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