Ground Reaction Forces and Temporal Characteristics Define Cutting Performance.

Area of Science:

• Biomechanics
• Sports Science
• Human Movement Analysis

Background:

• Moderate angle cutting maneuvers (45º-90º) are crucial for multidirectional sports performance.
• While cutting injury risks are studied, the biomechanics of high-performance cutting are less understood.

Purpose of the Study:

• To identify anthropometric, kinematic, and kinetic markers distinguishing high-performance cuts.
• To inform training programs for improved cutting technique and athletic development.

Main Methods:

• Ten male athletes and ten non-athletes performed moderate angle cutting trials (60° change of direction).
• A speed constraint (4.03-4.44 m/s) was applied during the cutting maneuvers.
• Kinetic and kinematic data were collected using ground reaction forces and lower limb angle measurements.

Main Results:

• Athletes exhibited a significantly shorter propulsion phase (52.0%) compared to non-athletes (55.4%).
• Athletes generated significantly greater instantaneous values for X, Y, and Z ground reaction forces (GRFs) during propulsion.
• No significant difference in propulsion impulse was observed between athletes and non-athletes.

Conclusions:

• Higher GRFs and shorter propulsion times characterize superior cutting performance in athletes.
• Faster directional changes enhance an athlete's ability to evade opponents by reducing reaction time.
• These findings can guide the development of targeted training interventions for cutting mechanics.