biathlon 1 endurance 1 energy metobolism 1 exercise 1 exercise offer 1 flexibility 1 general athletic training 1 handball inline-skating 1 maximal strength 1 muscle 1 normative value 1 performance diagnostics 1 skill 1 speed strength 1 sport 1 stability 1 strength 1 strength endurance 1 test 1 training planning 1 training programme 1 wrestling 1 youth 1