Fig. 6
From: Does texting while walking really affect gait in young adults?
Co-contraction of ankle antagonist muscles. Co-contraction between tibialis anterior (TA) and gastrocnemius lateralis (GL). (a) Percentage of cycles with TA/GL co-contraction during heel contact (H), flat foot contact (F), push off (P) and swing. (b) Co-contraction duration (expressed as % of gait cycle). Significant differences between walking conditions are indicated as *(p < 0.05) or **(p < 0.001)