First periodization models and concepts can be found almost 2000 years ago, in ancient Rome
and Greece  however what is currently understood about traditional periodization came from
our Comrades in 1949 , when training was divided into general, preparatory and specific
stages. Later it was including competitive calendar and climatic factors. 
Periodization has been defined as the methodical planning and structuring of training process
that involve a logical and systematic sequencing of multiple training variables aimed to optimize
specific performance outcomes at predetermined time points.  In team sport, like in a lot of
individual sports this traditional model was used. However the current competitive requirements
for the team sports challenge it. Below I will describe the traditional model, and after that I will
propose alternative methods based on recent studies in team sports and testing. This is a
snippet from my eBook about volleyball performance (book that just sits on my computer so far,
if there will be an interest I will probably release it) so this will focus around volleyball, but the
methods are applicable to most modern team sports in terms of intensity and frequency of
practice and competition games.
'Greg Mikolap, BSc in Physiotherapy, and a Personal Trainer based in Maidenhead, England. Greg is also a founder of www.PTFolder.com, training solution for people who want to get fit or for people who help others get fit. With almost 10 years experience in the industry, Greg is also a course director for Faster Health & Fitness and is working on his volleyball performance book.'