When I was a kid, I loved watching the TV sitcom, I Love Lucy. Lucille Ball was one in a million. There was a famous episode during which Lucy and her friend Ethel work at an assembly line, where they were assigned to wrap pieces of chocolate as they came down the conveyor belt. […]
Running is all about your legs. When you run, many enzymes are busy at work in your calves, hamstrings, quadriceps, and other muscles, catalyzing numerous chemical reactions to break down carbohydrates and fat for fuel, including the one that breaks the strong bonds of ATP molecules we learned about in high school biology class to […]
On my 5-mile run around Lake Miramar in San Diego today, I thought about economy. People use different amounts of oxygen when running at the same submaximal speeds, and this difference explains why runners with the same VO2max do not cross the finish line together in races. This difference in oxygen use is called running […]