Submit Manuscript | http://medcraveonline.com applications and using our experience with the Tesiomyography to evaluate the mechanical characteristics of the muscles through a transversal electrical stimulus and all that is known about the physiological characteristics of the fascia.The purpose of this study was to compare the acute effects of the use of the Roller Foam and Crossed Hands Technique (Myofascial Therapy) on the mechanical characteristics of biceps femoris (BF) and semitendinosus (ST) muscles of the dominant leg son after a Romanian dead lift exercise. Thirty-four (n=34) students (age: 24.52±3.12 years old) students of Physical Education of the University of Las Palmas de Gran Canaria were evaluated. They were divided into three groups:Roller Foam Group (RG, n=10); Crossed Hands Technique Group (CHG, n=15) and Control Group (CG, n=9). The Tensiomyography (TMG) is used to evaluate the mechanical characteristics of the biceps femoris and semi-tendinosus muscles. Specifically, the Radial Displacement of the muscles' bellies (Dm) and Contraction Time (Tc) were measured. The measures were taken: in basal conditions; after a 5 min of continuous run (8 km/h) warming up; after a romanian dead lift with growing load of the 1RM: (50%/15 reps, 60%/10reps, 70%/8reps, 80%/6reps, 90%/3reps), with 2min rest between each load set; five and ten minutes after the exercise. The myofascial release applications were just after the first five minutes of rest (Figure 1).