This involves much forward and backward motion in the running pattern. Causes of fatigue in rugby league are related to recurring, high intensity activities. However, for those with less developed levels of fitness, it may be appropriate to develop an endurance base using longer distance intervals running prior to undertaking training of a higher intensity. Indeed, as such exercises help to reduce the incidence of ground-impact to which your body is subjected, they often form ideal means of cross training with a big endurance training benefit. Due to the collision and contactive nature of the sport of rugby, it is good to have a period of time away from such stresses.
Swimming is another good way to achieve the same training effect.
It is essential that you warm up thoroughly prior to each session that you undertake.