Differences in Movement Speed Before and After a Split-Step Between Professional and Junior Tennis Players.

Area of Science:

• Sports Science
• Biomechanics
• Tennis Performance Analysis

Background:

• The split-step is a crucial movement in tennis for efficient court coverage and stroke execution.
• Understanding the biomechanics of the split-step can inform training strategies to improve player speed and agility.

Purpose of the Study:

• To analyze tennis players' speed, deceleration, and acceleration in relation to the split-step across different stroke groups and age categories.
• To identify distinct movement patterns associated with various tennis strokes and their impact on performance.

Main Methods:

• Video analysis of 8,545 split-steps from professional and junior tennis players during official tournaments.
• Measurement of player speed, deceleration, and acceleration 0.2 seconds before and after the split-step using the SAGIT system.
• Statistical analysis using two-way ANOVA to compare variables across different player categories and stroke groups.

Main Results:

• Tennis players performed a split-step in 82.9% of observed instances.
• Speed variations before, during, and after the split-step were more pronounced than deceleration or acceleration differences.
• Three distinct movement patterns were identified, correlating with serving/returning, baseline strokes, and net play, each with characteristic speed ranges.

Conclusions:

• Tennis strokes are associated with specific split-step movement patterns and speed profiles.
• Optimizing movement patterns, increasing speed, and practicing specific game situations are vital for continuous improvement in tennis.
• The findings provide valuable insights for coaches and players aiming to enhance on-court agility and effectiveness.