Mostly in practice there are many questions about how to throw a heavy equipment ? When you do this? When the train speed , and when the train strength? During the preparatory stage , it is worth doing a lot of force components on the shoulders . For men - use ball 2kg , women - balls 1-1.2 kg. Throwing shots at one workout should be about 30-50 . It makes no sense to throw more . Number of workouts per week - up to 2 In the winter , of course, can't forget the light equipment (400 - 600gr ) . As a percentage of light throws should pose a maximum of 30% of the total throws. Closer to the start of the season the proportion is changing. 50 % starting equipment , light equipment 30% , 20% heavy equipment . Dynamic, fast shoulder in javelin is essential. It must also be sufficiently strong and stretched . Remember!Before each throwing training first You have to warm up the shoulders , and after an intense workout loosen them - massage , hydro-massage pool .