Cameron came across this document on the BAofE website and thought it particulary useful to have a copy here, easy to hand, incase it should disappear at some point in the future. The original article can be found here, and as the BAofE says:

This article, produced by the BAofE, includes an introduction to the game, general principles of fitness training (specificity, progression and variation), training techniques for badminton (warm up and warm down, on-court fitnesss training types, off-court fitness training types) and development of specific fitness components.

BadmintonTraining.pdf (443 KB)
To download the above file without opening it in your browser, click with the Right Mouse Btn and select 'Save Link As...' or 'Save Target As...', depending on your browser.