Pre Season Training
This plan from hiitscience team it involves 1-2 training session (alternate One Session per day -double training sessions ) and a combination of HIIT runs (Short-Long ) ,submaximal,Strength and Technical Tactical Sessions .During Pre Season it's good to restrict locomotor and neuromascular load ,initially ,focusing on Large Sided -Small sided Games and Short Interval Type I (10''/20'' or 10''/10'' ).As long as adequate recovery is provided ,type 4 HIIT could be included (e.g .4v4 during a Strength Session ).
The HIIT Sessions prescribed should be context dependent player fitness level ,previous training load etc.For further information you can find in "High Intensity Interval Training " book from Laursen-Buccheit .
My opinion is that this period is the most difficult for the fitness coaches and at this time is not a normal pre season like the previous years because the transition period of the players is small (15-20 days max)
and the duration of the pre season is about 4 weeks because the most of the championships starts on 12th September that means is a "fast" pre season in a small period you must introduce a lot of things.
This plan of hiitscience team for my opinion is excellent and I propose to follow this ,because is important to alternate the session with 1 and 2 sessions and to give after the double session time for recuperation to the players and to start with more power the next session also the combination in the HIIT Runs (Short -Long Intervals more 10''/10'' 15''/15'' and 3-4'min Long ) is crucial .At the end I propose more Large-Medium Sided Games and Less Small Sided Games (5v5 or 4v4 ) especially at the last 2 weeks of the pre season period but for sure not the last week .Dont forget to start from the second week to work in the speed with specific training sessions until the last week ...
Don't Forget to order this magazine of "mr -football " are very useful for the Pre season period