Upper body. Pecs, lats, traps, biceps, triceps, deltiods.
Lower body. Hams, quads, gastrocnemius.
Rugby uses virtually every muscle.
Chest, Shoulders (tackling) and legs (for scrums)
qwads back triceps gucesemus maximus
obviously most of the work is going to come from the arms, shoulders and legs but here is a list of the muscles used THE MOST but are not the only muscles used : biceps brachii, triceps brachii,...
All.
Yor leg your thighs muscles tha are mainly used in playing soccer.
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