The 5 principals of sport are guidelines in which athletes should follow and help the athlete to get optimum results.The 5 princials are S.P.O.R.V
S- Specificity,This means that the training methods you impliment into you training sessions are relevent to your sport,the position in sport or whatever goals or target you set yourself, for example you would not have a shot putter doing continuos c.v. work, or have a long distance runner doing strength work.
P O- Progressive Overload, this means what ever client you have you will make there sessions slightly more advanced over a certian amount of time. For example an athlete would would progress alot quicker than an non-athlete.
R- Reversabilty- this means that you go backwards in your fitness levels, this is from not doing athletic activitys in a long amount of time this would occur from; injuries, off-season and holidays. The gains would reverse quicker for non-athletes than athletes.
V- Variance- this means changing your sessions to stop them getting tedius, athletes would get bored from doing the same methods every time you train this would damage the athletes enthusiasm about training,so trainers would to do different training methods which are still relevent to the athletes goal or do the same methods but in different areas for example a long distance runner who does continuos running everyday could change to fartlek or maybe running to somewhere else.
D1-relate the principals of training to a range of clients with different needs.