Barre classes engage the core and tone the whole body
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What You'll Get
Bar Method has grown to over 100 studios in 26 states.
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. May redeem across visits. Registration required 24-hours in advance. Must arrive 15 minutes prior to class. Socks/long pants required. Must activate voucher within 60 days of purchase. Limit 1 per person, may buy 1 additional as gift(s). New customers only. Valid only for option purchased. All goods or services must be used by the same person. Valid only at listed locations. Limit 1 per visit. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.
About The Bar Method
In 1959 German dancer Lotte Berk turned a back injury into the beginnings of a fitness phenomenon. Whether it was clairvoyant foresight, a prophesy spelled out in alphabet soup, or just plain stubbornness to dance her way through an injury no one knows, but her combination of ballet training and rehabilitative therapy formed the foundation of The Lotte Berk Method exercise studio. In 2001, after decades of running her own Lotte Berk studio, journalist and entrepreneur Burr Leonard teamed with a physical therapist to refine the movements of this workout to target specific muscles while reducing the impact on joints. The result became known as the Bar Method. Since the opening of Burr’s first studio, The Bar Method franchise has grown to 100 locations in 26 states across the United States and British Columbia, Canada. More than 80,000 students take these classes per month including celebrities Drew Barrymore, Ricki Lake, and Anna Paquin.