Page 84 - Safe Wrestling

Rok Vatovec

ologies and preventive strategies (Hibbs et al., 2008). Understanding fun-
damental biomechanical principles is essential both for injury preven-
tion and for the development of effective techniques in combat sports.
Among the most important principles are Newton’s laws of motion,
centre-of-mass control, and lever systems.
Newton’s Laws of Motion and Their Role in Combat Sports
Newton’s laws of motion represent fundamental physical principles that
explain how bodies move and how forces act upon them. In combat
sports, where efficient movement execution and force generation are
central to performance, all three laws are clearly observable (Hall, 2014;
McGinnis, 2021).
First Newton’s Law (Law of Inertia)
Every body remains at rest or continues in uniform linear motion unless
acted upon by an external force; that is, unless the resultant of all forces
acting on the body is non-zero (Hall, 2014).
In the practical context of combat sports, a fighter who is stationary
will only begin to move once muscular force is generated internally or an
external force is applied by the opponent. The same principle applies to
the opponent’s body following impact: after receiving a strike, the body
continues moving in the direction of the applied force due to inertia until
movement is reduced by friction, postural correction, or loss and recov-
ery of balance.

Second Newton’s Law (Force and Acceleration)
This law states that the resultant force acting on a body is directly propor-
tional to the product of the body’s mass and its acceleration (Hall, 2014).
In combat sports, the force generated during a strike depends not only
on the strength of the striking limb, but also on the coordinated interac-
tion between body mass and movement velocity. For this reason, fighters
utilise weight transfer, hip rotation, and coordinated whole-body move-
ment during striking actions, thereby substantially increasing the resul-
tant force production.

Third Newton’s Law (Action and Reaction)
If one body exerts a force on another body, the second body simultane-
ously exerts an equal and opposite force on the first body (Hall, 2014).
In the practical context of combat sports, a fighter delivering a strike
simultaneously experiences an opposing reaction force within their own
body. Without an adequate base of support and postural stability, this

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