Research Article

Effects of Manual Therapy and Mechanical Massage on Spinal Alignment, Extension Range of Motion, Back Extensor Electromyographic Activity, and Thoracic Extension Strength in Individuals with Thoracic Hyperkyphosis: A Randomized Controlled Trial

Figure 4

Measurement of surface electromyography activity during back extension. (a) Back extension; (b) maximum voluntary isometric contraction.
(a)
(b)