Welcome to the Nexus of Ethics, Psychology, Morality, Philosophy and Health Care

Welcome to the nexus of ethics, psychology, morality, technology, health care, and philosophy
Showing posts with label Peak Performance. Show all posts
Showing posts with label Peak Performance. Show all posts

Monday, April 2, 2018

Ethics and sport have long been strangers to one another

Kenan Malik
The Guardian
Originally posted March 8, 2018

Here is an excerpt:

Today’s great ethical debate is not about payment but drugs. Last week, the digital, culture, media and sport select committee accused Bradley Wiggins of “crossing the ethical line” for allegedly misusing drugs allowed for medical purposes to enhance performance.

The ethical lines over drug use are, however, as arbitrary and irrational as earlier ones about payment. Drugs are said to be “unnatural” and to provide athletes with an “unfair advantage”. But virtually everything an athlete does, from high-altitude training to high-protein dieting, is unnatural and seeks to gain an advantage.

EPO is a naturally produced hormone that stimulates red blood cell production, so helping endurance athletes. Injections of EPO are banned in sport. Yet Chris Froome is permitted to sleep in a hypoxic chamber, which reduces oxygen in the air, forcing his body to produce more red blood cells. It has the same effect as EPO, is equally unnatural and provides an advantage. Why is one banned but not the other?

The article is here.

Friday, October 7, 2011

A Little Deception Helps Push Athletes to the Limit

By Gina Kolata
The New York Times


The trained bicyclists thought they had ridden as fast as they possibly could. But Kevin Thompson, head of sport and exercise science at Northumbrian University in England, wondered if they go could even faster.

So, in an unusual experiment, he tricked them.

In their laboratory, Dr. Thompson and his assistant Mark Stone had had the cyclists pedal as hard as they could on a stationary bicycle for the equivalent of 4,000 meters, about 2.5 miles. After they had done this on several occasions, the cyclists thought they knew what their limits were.

Then Dr. Thompson asked the cyclists to race against an avatar, a figure of a cyclist on a computer screen in front them. Each rider was shown two avatars.

One was himself, moving along a virtual course at the rate he was actually pedaling the stationary bicycle. The other figure was moving at the pace of the cyclist’s own best effort — or so the cyclists were told.

In fact, the second avatar was programmed to ride faster than the cyclist ever had — using 2 percent more power, which translates into a 1 percent increase in speed.

Told to race against what they thought was their own best time, the cyclists ended up matching their avatars on their virtual rides, going significantly faster than they ever had gone before.

While a 2 percent increase in power might seem small, it is enough to make a big difference in a competitive event that lasts four to five minutes, like cycling for 4,000 meters. At the elite level in sports, a 1 percent increase in speed can determine whether an athlete places in a race or comes in somewhere farther back in the pack.

The improved times observed in his experiment, said Dr. Thompson, are “not just day-to-day variability, but a true change in performance.” And they give rise to some perplexing questions.

What limits how fast a person can run or swim or cycle or row? Is it just the body — do fatigued muscles just give out at a certain point? Or is the limit set by a mysterious “central governor” in the brain, as Timothy Noakes, professor of exercise and sports science at the University of Cape Town in South Africa, has called it, that determines pacing and effort and, ultimately, performance?
Until recently, exercise physiologists have mostly focused on the muscles, hearts and lungs of athletes, asking whether fatigue comes because the body has reached its limit.

But athletes themselves have long insisted that mental factors are paramount. Roger Bannister, the first runner to break the four-minute mile, once said: “It is the brain, not the heart or lungs that is the critical organ. It’s the brain.”

Now researchers like Dr. Thompson are designing studies to learn more about the brain’s influence over athletic performance.

The entire story can be read here.