Tag Archives: exercise

Science Based Triathlete

The Making of a Olympian by Arianne Cohen

In a break with training orthodoxy, Potts and his coach have created a regimen called feedback training in which the training plan is reassessed every 24 hours based on the constant monitoring of three variables: wattage (the power Potts’s body produces), cadence (the tempo of his arm and leg movements) and heart rate. No lap times. No mileage. No grand training schedules planned months in advance. Only raw biological data. “My coach and I talk a lot about engines,” Potts says. “In auto racing, you want to put out the highest amount of power with the least amount of fuel. We do the same thing. My heart and lungs are my engine. The goal is to always increase the efficiency of the engine.”

Every night, Doane analyzes his athlete’s response to the day’s training. He’s looking for the best way to expand Potts’s aerobic capacity, power output and lactate threshold, without overtraining. If Doane sees that Potts’s heartbeat has been sluggish—say, beating 140 times per minute while Potts is trying to produce 410 watts—that means his body is struggling to recover from earlier training, so he’ll dial back the intensity of his workouts. If, on the other hand, his heart rate stays in the sweet spot around 165 while he churns through a series of 360- to 400-watt intervals, that means he’s fully recovered and ready to be pushed again. “We’ve created a feedback loop,” Doane says. In other words, Doane subjects Potts to a careful dose of punishment, and Potts’s body tells Doane, through empirical data, what he needs to do next.

Nice article. As it mentions really almost all Olympic athletes today use a great deal of science in their training.

Related: Baseball Pitch Designed in the LabEngineering Sports at MITRandomization in Sports

Big Fat Lie

cover of diet delusion

Big fat lie

‘I got actively attacked, but I guess I had to be,’ Taubes says. ‘What are the chances of writing an article that says the entire medical establishment is wrong, and them going, ” Good point, thank you, Gary. Can we give you an award?” When people challenge the establishment, 99.9 per cent of the time they are wrong. If I was writing about me, I’d begin from the assumption that I am both wrong and a quack.’

At least he is right on this. You challenge the accepted scientific understanding and this is what will happen. But if the evidence is there scientists will be won over by the evidence over time.

‘Reading the research was a reawakening for me,’ he says. ‘I did all the things that the rest of us did. I ate a low-fat diet, went to the gym and was getting heavier anyway. But once you flip your way of thinking about it, it seems so absurd: the idea that what you put in minus what you expend equals how fat you are. Our bodies don’t work like a car. We are not thermodynamic black boxes; we are biological organisms and we have evolved complex systems of hormones and enzymes and proteins. That’s how we are regulated.’

The obesity epidemic began in America during the late 1970s, which is also when the low-fat, high-carb diet-and-exercise revolution began. ‘You have a starting point,’ says Taubes. ‘The question is what is causing it? Then I realised that we were first told to eat less fat in the late 1970s, and, if you eat less fat, you start to eat more carbohydrates – it’s a trade-off.’

The whole healthy eating debate is sure not easy to figure out. But I think some things are clear. Eating too many calories and not exercising enough are problems. And it also makes sense that it is not only the number of calories that matter but what type. We are biological beings and how we process food is not just by a count of the calories. It seems the evidence of bad effects of too much carbohydrates is growing.

It also makes perfect sense that our bodies evolved to store energy for worse times (and some of us have bodies better at doing that). Now we are in a new environment where (at least for many people alive today) finding enough calories is not going to be a problem so it would be nice if we could tell our bodies to get less efficient at storing fat for bad times ahead. But we can’t so we need to take actions to remain healthy given the how our body reacts to what we eat and do. And it seems one of those actions might mean we have to eat less than we might want to.

Related: The Diet Delusion by Gary Taubes – Eat food. Not too much. Mostly plants.Obesity Epidemic Explained, Kind OfDon’t Eat What Doesn’t RotGood Calories, Bad Calories by Gary Taubes – Energy Efficiency of DigestionAnother Strike Against Cola

Exercise to Reduce Fatigue

Low-Intensity Exercise Edges Out Fatigue — Without Requiring Lots of Sweat

If fatigue hounds your days, a little exercise may shoo it away without leaving you drenched with sweat. So say University of Georgia researchers. In a new study, they report that healthy young adults who say they’re tired all the time got an energy boost from a low-intensity workout plan.

Here’s all it took: three sessions per week of pedaling a stationary bicycle at a mild pace. They didn’t need to train every day, and they didn’t push themselves too far — just far enough to shake their fatigue

As I have said before, I have found exercise reduces fatigue myself.

Related: Treadmill DesksAnother Paper Questions Scientific Paper AccuracyRegular Aerobic Exercise for a Faster Brain