Biotissue models improve psychomotor skills for abdominal surgery training, crucial for surgical proficiency.

• Repeated practice with biotissue models cut operative time by 7.5 minutes (p < 0.0001).
• Objective skill assessment scores (OSATS) increased by 4.41 points (p < 0.0001).

Incorporating these models into training curricula could offer an effective and budget-friendly solution for laparoscopic and robotic procedures.

• Experts performed tasks 50.18 minutes faster than novices (p < 0.0001), confirming their validity.