BY SIMON DUNN
THE KEY to designing a good session is to ensure all muscles are worked in all planes of movement. This month, quadriceps (the anterior part of your upper leg), hamstrings (the posterior part of your upper leg), gastrocnemius (calves), soleus (underneath your calves), tibialis anterior (along your shin) and adductors (the inner thigh). Focusing primarily on just one area can have a negative effect on your gait (manner of walking).