Vertical Jump Articles 2007

In 2007, vertical jump research focused heavily on plyometrics, biomechanics, muscle power, and jump assessment methods. Many of these studies are still referenced today because they helped shape how coaches and athletes understand explosive jumping.

Does Plyometric Training Improve Vertical Jump Height?

This 2007 research review analyzed multiple controlled studies on plyometric training. The main goal was to determine whether jump-focused explosive training actually increased vertical jump height.

Key takeaways from the article included:

• Plyometric training consistently improved vertical jump height
• Improvements were seen in squat jumps, countermovement jumps, and drop jumps
• Arm swing coordination played a major role in jump improvement
• Training frequency and volume mattered more than extreme intensity

This article helped confirm that jump training needed to focus on speed and reactivity, not just strength.

A Deterministic Model of the Vertical Jump: Implications for Training

This article approached the vertical jump from a biomechanical perspective. Instead of asking whether jump height improved, it examined why it improved.

The study broke down vertical jump performance into key contributors:

• Takeoff velocity
• Force production timing
• Joint coordination at the hip, knee, and ankle
• Use of the stretch shortening cycle

The researchers showed that jump height is influenced more by how fast force is applied than how much force is applied. This finding pushed coaches to prioritize explosive drills over slow strength movements.

Is Vertical Jump Height a Body Size Independent Measure of Muscle Power?

This 2007 study questioned whether vertical jump height alone was a fair way to measure power across athletes of different sizes.

Main conclusions included:

• Vertical jump height by itself does not fully represent muscle power
• Body mass significantly affects jump interpretation
• Power output calculations provide better comparison than height alone
• Taller or heavier athletes may appear less explosive even when producing high force

This article helped explain why some strong athletes do not appear to jump high and why jump testing needs context.

Vertical Jump Performance in Competitive Volleyball Players

This research followed competitive volleyball players and tracked their vertical jump performance over time, including data collected during the 2007 season.

Key findings included:

• Consistent jump training maintained or improved jump height during the season
• Fatigue and overtraining reduced jump performance
• Approach jumps improved more than standing jumps
• Timing and coordination mattered more than raw leg strength

This study reinforced the importance of sport specific jumping rather than isolated gym movements.

Stretch Shortening Cycle Behavior in Vertical Jump Movements

Another 2007 research article focused on how the stretch shortening cycle works during vertical jumps.

Important insights included:

• Faster transition from landing to takeoff increased jump height
• Excessive knee bend reduced explosive output
• Reactive strength played a bigger role than maximal strength
• Short ground contact time led to better jumps

This research influenced how plyometric drills were designed in later years.

Comparison of Squat Jump and Countermovement Jump Mechanics

This study compared static squat jumps with dynamic countermovement jumps.

Key conclusions:

• Countermovement jumps produced higher jump heights
• Elastic energy storage improved performance
• Arm swing timing significantly increased jump output
• Static strength did not guarantee better jumping

This helped validate dynamic jump testing as more realistic for athletic performance.

Summary Table of Vertical Jump Research Themes in 2007