Figure 2. High resolution ultrasound and thermography assessment. A Pre-measurement ECT thickness. B 48 h-measurement ECT thickness. C Outcomes (error bars show the non-parametric 95% confidence interval). D Post-exercise-measurement skin temperature. E 48 h-measurement skin temperature. *REF, artificial reference by adhesive tape; *DER, dermis; *SAT, subcutaneous adipose tissue; *TLF, posterior layer of the thoracolumbar fascia; *ES, erector spinae muscle; ECT, extramuscular connective tissue; t0, baseline; t1, post-exercise; t24, 24 h after exercise; t48, 48 h after exercise.