A day's worth of skiing can burn upwards of 3,000 calories, and freestyle is designed to be as much fun as it is exercise, with none of the grinding slog associated with cross-country.
A variety of possible exercises are suggested including sprinting, stair climbing, exercise equipment such as exercycles or rowing machines, and activities such as star jumps, burpees and the like, as long as it is "exercise that uses most of your body and is very hard to do within seconds".
In others, it may be extremely valuable by the time it is exercised, as long as 10 years after it was issued.
Using an elliptical cross-trainer may feel as if it is exercising your running muscles, but it is not giving you the same kind of training that running does.
The Edinburgh Festival Fringe Society, incorporated in 1969, exercises no quality control, but just prints the programmes, runs the box office and provides support, such as rehearsal space.Quality control, such as it is, is exercised at the bigger venues.
It looks especially bad when the gag order is exercised, as it was, to silence researchers detailing environmental damage given the Harper government's much criticized record on the environment.
In this sense, global citizenship is about emotions as much as it is about exercising certain rights and responsibilities.
This includes those occasions when freedom of speech is exercised provocatively, as it's supposed to be in a free country.
It's an exercise in focus as much as it is an exercise in curation.
The Devil's Candy is as much a love letter to the various branches of the metal family tree as it is an exercise in tightly wound classic horror, which must make Byrne the biggest metalhead of them all.
