Final answer:
Samantha's inability to press 185 lb on the bench press is likely due to physical constraints such as muscle strength, endurance, or neuromuscular coordination.
Step-by-step explanation:
The performance limitation Samantha is experiencing at 185 lb for the bench press is likely a physical constraint, which could be due to a number of factors including muscle strength, muscle endurance, or neuromuscular coordination. In strength training, a 1 repetition max (1RM) represents the maximum amount of weight one can lift for a single repetition with proper form. Progressing beyond a current 1RM often requires structured training and progressive overload to address these physical constraints and increase strength.
It is important to note that strength is just one factor that can limit performance in weightlifting. Other factors, such as technique, muscle imbalances, and fatigue, can also contribute to performance limitations.