Barre classes engage the core and tone the whole body
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
About The Bar Method
Founder Burr Leonard, a lover of ballet and jazz classes, discovered the Lotte Berk Method while living in New York in 1981. She became a devoted student after noticing an incredible transformation in her body. In 2001, after decades of running her own Lotte Berk studio, she teamed with a physical therapist to refine the movements of this workout to target specific muscles while reducing the impact on joints. The resulting workout became known as the Bar Method.
This signature technique has proven to be a fast and efficient way to reshape the entire body. Precise exercises keep students working “in the muscle,” followed by stretching to lengthen and elongate the area just worked. The result is a strong, dancer-like body, with sculpted arms, flat abs, a lifted seat and elongated thighs, as well as improved posture and body alignment. The fast pace of the class spikes the heart rate at different intervals to burn calories not just in the classroom, but long after. The remarkable body transformations of this workout has lead to more than 120 studios opening in the United States and Canada.