The size of PVC baseball for training needs to be comprehensively considered in combination with the training goals, the user’s age and technical level. The following are targeted recommendations:
Children and teenagers’ enlightenment training
Recommended diameter: 6.5 cm to 7 cm
Applicable scenarios: Training beginners’ batting movements and hand-eye coordination.
Design features: The size is slightly smaller than the standard ball (7.2-7.3 cm), and the weight is controlled at 80-120 grams, which is convenient for children to hold with one hand, reduces the difficulty of hitting the ball, and at the same time improves the hit rate through a larger contact area.
Basic batting training from kindergarten to the lower grades of primary school helps to quickly build confidence in batting.
2. Professional basic training
Recommended diameter: 7.2 cm to 7.3 cm
Applicable scenarios: Standardization of technical movements, improvement of strength and accuracy.
Design features: Strictly matching the standard baseball size, the weight is usually between 140 and 150 grams, ensuring seamless connection between training movements and official competitions.
For example, in the daily training of youth sports schools or school teams, the focus is on strengthening core skills such as swing trajectory and hitting point control.
3. Strength and explosive power training
Recommended diameter: 7 cm to 7.2 cm (weight can be slightly adjusted)
Applicable scenarios: Strengthening muscle endurance and enhancing hitting power.
Design features: Add weight (such as 160-180 grams) on the basis of the standard size, and enhance the explosive power of the upper limbs through resistance training; Or use a slightly smaller size (7 centimeters) to increase the difficulty of controlling the ball when hitting the ball.
Strength training for athletes at high school level and above, combined with the monitoring of hitting distance and speed to optimize the training effect.
4. Special Skills training
Recommended diameter: 6 cm to 6.5 cm
Applicable scenarios: Accuracy challenges, reaction speed training.
Design features: Reducing the size to increase the difficulty of hitting the ball, and combining with fast pitching to train athletes’ concentration and adaptability.
Example: Specialized technical refinement for professional athletes or advanced skill improvement for baseball enthusiasts.
5. Rehabilitation and functional training
Recommended diameter: 7 cm to 7.5 cm (combined with lightweight design)
Applicable scenarios: Recovery from shoulder/elbow injuries, muscle activation training.
Design features: Made of ultra-light materials (such as hollow foamed PVC), the weight can be as low as 50-70 grams, reducing joint pressure while maintaining a certain flight trajectory to simulate the real hitting sensation.
Example: Non-impact hitting training during the postoperative rehabilitation stage, or light exercise assistance for the elderly.
Key selection basis
Safety: For children and rehabilitation training, lightweight and soft materials should be given priority.
Technical adaptation: Professional training must strictly match the standard size, while introductory training can be appropriately adjusted.
Venue conditions: For indoor training, a size with a shorter flight distance should be chosen; for outdoor training, the requirements can be appropriately relaxed.
By rationally choosing the size, PVC baseball can meet the multi-level training needs from beginner to professional, from rehabilitation to competition. It is recommended to make customized choices based on specific training goals and user characteristics.