5d12f34d_ct_Guides___Health_and_Fitness__MUSCLE_GROUP
[WHAT IT IS?] On the back and front of your legs below the knee [WHEN DO YOU USE IT?] When you push off to take a step. They’re small but can handle lots of weight [WHICH MACHINES EXERCISE IT?] Treadmills, cross trainers, home gyms [MUSCLE GROUP] 
Calf & shin
Argos Product Guides - Health and Fitness
MUSCLE GROUP