When performing a seated leg extension, which muscle group is the primary antagonist during the concentric phase?
A. Hamstrings
B. Quadriceps
C. Hip extensors
D. Back extensors
Answer: A
When performing a seated leg extension, which muscle group is the primary antagonist during the concentric phase?
A. Hamstrings
B. Quadriceps
C. Hip extensors
D. Back extensors
Answer: A