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Reflections from a Gymnastics assistant coaching course
1st June 2023
A guest post from Kath Maguire. Kath is the parent of one of our club’s gymnasts. She asked about doing some volunteering a couple of months ago and whether there was a course she could do. Here are her reflections from the day. “I’ve been thinking about volunteering for a while now but as it’s […]
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Strength and Power in Rugby: part 2

What about the Ruck and Maul?

rugby maul strengthThe ruck is specific to rugby union and is where the tackled player is off his feet and tackled to ground. The average ruck lasts in the region of 4 or 5 seconds and therefore the primary physical determinant for success is power. There are over 100 rucks and mauls per game and the ability to maintain the effectiveness in the ruck for the full length of the game is also dependent upon strength endurance and cardiovascular endurance.

A maul is created when the tackled player remains on his feet and players from either team enter the maul to secure the ball and/or gain territory. The maul lasts between 8 and 20 seconds (and sometimes longer) and therefore strength and power endurance come into play, particularly in the muscle groups used to grapple. There are approximately four rucks or mauls per minute of possession. The number of rucks and mauls entered per game by players of different positions varies.

The Set Piece 

rugby scrum strengthThe scrum is common to both rugby league and rugby union but the laws and interpretations of them have diverged so much that there is very little resemblance between the two.

The scrum in rugby league has been effectively de-powered and very rarely is a push seen whereas the scrum in rugby union is a highly skilful sub set of the game requiring extremely good technique and a high degree of explosive and static strength.

The scrum in rugby union now involves two packs of approximately 900kg hitting each other from approximately 1m apart. Good individual and group technique will concentrate this force in one direction through quite a narrow point, and at the centre of this is the hooker (Scrum coaches please do not ring up to say I am not an expert- I know, I am painting a general picture!!).  In order to withstand these forces the hooker needs to be strong, and able to absorb large forces through his spine.

Rugby union is a late specialisation sport, yet young players are often pigeon holed into positions at any early age. Approximately three quarters of hookers in today’s premiership did not start in that position;therefore they have not had the muscular adaptation over a period of time to develop their bodies for that position. It could be argued that the game’s administrators should look at ways of ensuring that all younger players scrummage. 

The line out is peculiar to rugby union and involves jumping and lifting both which require technical skill aligned with strength and power. At top level this will mean a 120kg player being propelled upwards by two powerful 110kg players to a height (feet off the ground) of approximately 1.75m before catching and passing a ball and then landing on the ground again.

Think “forces”, and then ponder the necessary long-term physical and technical preparation required to succeed and stay injury free.

Part 3 appears tomorrow

See our Get Stronger programme here 

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