Rugby players spend considerably more playing time in physical contact and contest with opponents than players in other forms of football.

Much of this contact involves extended grappling and wrestling, but what is also characteristic of rugby is the amount of time spent attempting to drive forward under loads considerably heavier than bodyweight. Obviously this is so in the scrum and maul, but also at the tackle. Both ball-carrier and tackler may strive to drive one another backward for an extended time after engagement. American football and rugby league are also primarily collision sports, but their tackles tend to terminate much more quickly.

Recognition of the importance of physical strength has led to a tendency for rugby selectors to favour increasingly heavier players even for backline positions vintage nba jersey. A modern professional rugby team is likely to average over 100kg bodyweight, compared with less than 95kg and less than 90kg for rugby league and Australian football respectively. Increased bodyweight appears to confer no advantage in soccer.

No valid size comparison can be made with players in American football. Its use of specialist teams means that individual players are only on the field for limited periods and therefore really massive players can be employed for the more static areas of engagement.

For professional rugby, players are often chosen on the basis of their size and apparent strength but are then not really expected to work to become significantly stronger. Much strength training in rugby appears to have the aim of generating hypertrophy - increasing muscle size and thus body mass - or of maintaining strength levels rather than seriously exploring the potential for markedly increased power.

Soccer, Australian football and rugby league are continuous-flow type games, whereas rugby and, to a much greater extent, American football are characterised by frequent stoppages and thus require lower levels of aerobic fitness. But I see little evidence that rugby coaches have fully realised the potential this provides to gain a competitive edge by requiring their players, backs and forwards, to seriously train for strength.

I would suggest that, given the development of very well-drilled coordinated defensive lines, the next stage in the evolution of rugby is likely to involve a concentration on the identification of and development of heavy, very mobile players who possess very high-range explosive strength.

About the Author: Bruce Ross is CEO of MyoQuip, manufacturers of variable-resistance strength machines including the rugby-specific ScrumTruk http://www.MyoQuip.com.au http://myoquip.blogspot.com/

Unlike other forms of football, rugby can be usefully viewed as a succession of prolonged physical engagements, either between individual players or between groups of players. Each of these engagements demands the exercise of substantial physical strength. While basic strength training should form the foundation for such engagements, there should also be a focus on developing explosive strength appropriate to the particular activity.

During the extended periods when players are physically contesting with their opposing counterparts they are continually subjected to loading substantially greater than their own body weight. And, because that added resistance is live, there is often the problem of overcoming not only inertia but also counter force triggered by an initiating movement

In modern rugby considerable attention is given to fitness and aerobic conditioning as well as basic weight training, but there is very limited focus on the development of activity-specific explosive strength. This is despite the fact that an ability to very rapidly generate force can yield a competitive advantage in each of the areas of physical engagement in rugby:

Scrum and maul In the scrum or maul situation it is very difficult to shunt the opposing pack backward unless there is synchronised explosive activity vintage nba jersey. If a pack begins to move forward slowly or if just one or a couple of players attempt to initiate a shove, they are unlikely to be able to overcome the inertia of the opposing pack's body mass. In addition, the attempted drive forward will almost certainly trigger an almost immediate counter-shove. On the other hand if a pack suddenly and explosively begins to drive forward as a synchronised, coordinated unit, they are likely to be able to generate momentum and place their opponents on the back foot.

The key elements are that each of the forwards possess basic strength and a capacity to rapidly generate force. However, it is essential that their movements be synchronized. If any of these elements of strength, explosiveness and synchronicity are lacking the attempt is likely to prove futile or even counterproductive.

Tackle In a tackle situation there is great advantage in forcing the opponent, whether ball-carrier or tackler, back from the line of engagement. In order to do this effectively, the action has to be both powerful and virtually instantaneous.

In addition, ball-carriers with explosive leg drive are often able to brush past attempted tackles, while tacklers with similar attributes can forcefully secure the ball-carrier and take him to ground.

Ruck At the breakdown of play following a tackle the ability to push back or "clean out" opposing players from the ruck offers opportunities to win the contest for the ball or at least put the opposing team in a disadvantageous situation. The only effective way to win the breakdown contest is to apply very considerable force in an explosive manner.

Lineout The outcome of the lineout contest is largely dependent on how high the jumper can ascend, but also on how rapidly he can reach that point. This requires not only a very good vertical leap by the jumper, but also the ability of his support players to forcefully elevate him. Both jumping and lifting require specific forms of explosive strength.

When forward packs are evenly matched in strength and technique, and defensive techniques are well-coordinated, a game of rugby can often become a war of attrition, with teams attempting to wear one another down over the course of the game. It is very difficult to maintain concentration and alertness throughout an 80-minute game, and a capacity for explosive action allows the exploitation of fatigue and inattention. It provides surprise and unpredictability, while limiting the possibility of appropriate reaction.

Strength training for rugby should always be grounded on a solid foundation of basic strength; but coaches who are seeking to gain a sustainable competitive edge would do well to incorporate a comprehensive program of activity-specific training for explosive strength.

About the Author: Bruce Ross is CEO of MyoQuip, manufacturers of variable-resistance strength machines including the rugby-specific ScrumTruk and JumpTruk, and the LegDriver and HipneeFlex MyoQuip - strength-increasing equipment MyoQuip Blog - strength equipment, rugby football