The term is commonly used in mixed martial arts and other combat sports, as well as various forms of martial arts to designate the set of grappling techniques employed by a combatant that is on the ground.
Similarly to clinch fighting, ground fighting implies that the combatants are at a very close range, usually involving one or both combatants grappling the opponent using various grappling holds.
Typically, a top position is better for various strikes than a bottom position, simply because the combatant in the top position can generate the distance and movement needed for effective strikes, while the bottom combatant is restricted by the ground and by the combatant on top.
The types of strikes that can be employed effectively depend on the particular grappling position.
Common strikes include elbows, headbutts, knees and punches.