Fig. 5From: Ultrasound assessment of fascial connectivity in the lower limb during maximal cervical flexion: technical aspects and practical application of automatic trackinga Range of motion of cervical spine flexion. b Medial gastrocnemius (MG) deep fascia displacement. Zone I shows the onset of MG deep fascia displacement. Zone II shows the cycle percentage where fascia displacement was greater than 10 % of the movement cycle with p < 0.05Back to article page