The reason why the fitness instructor can't beat the takeaway brother is because everyone's physical fitness and practical skills are different. Mainly the takeaway brother wears a helmet. Everyone's factory settings are different, and the experience gained is also very important. Sometimes, these things really can't be concluded by one person fighting.

The actual combat level is not only affected by strength, but also related to physique, physical fitness and agility, and cannot be measured by physical fitness alone.