Jorge and Jessica are both "training" their muscles by exercising daily (well, almost daily). Jorge runs back-and-forth sprints part way across the football field in his neighborhood park. Jessica jogs about a mile to her neighborhood grocery store and then walks home carrying food for dinner.
Question 1: both athletes are running as a form of exercise and muscle conditioning. Running involves flexing and extending three joints: the hip, the knee, and the ankle. What muscles are both athletes
conditioning?
The prime mover for flexing the hip is the . A synergist for this action is the .
The prime mover for extending the hip is the . The main antagonist for this action is the ___.
One of the muscles that flexes the knee is the ___. The group of muscles it acts together with is called the .
One of the muscles that extends the knee is the . Its group is called the .
One of the muscles that plantar-flexes the ankle is the . This group of “calf” muscles is officially called the .
One of the muscles that dorsiflexes the ankle is the .
• biceps femoris
• fibularis longus
• gastrocnemius
• gluteus maximus
• gluteus medius
• hamstrings
• iliopsoas
• pectineus
• quadriceps femoris
• tibialis anterior
• triceps surae
• vastus medialis
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