Training muscle 4 Marathon---1

In human skeletal muscle there are fixed no. of MITROCHONDRIA , where respiration of the cell takes place.By training for long distance running, number of mitochondria within a cell increases...thereby increasing the person's capacity of running 4 long distances........

          By continous training our heart's capacity too increases to pump in more blood to the leg muscles leading to inceare in capacity of the person to run longer & faster as well.......

     HENCE  our training shoud include weight training as well as aerobic/cardio.training while perpraing for MARATHON........