Comparative Study of the Acute Effects of Two ways of Myofascial Release on Biceps Femoris and Semitendinosus Muscles after a Romanian Dead Lift Exercise

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). Volume 1 Issue 6 2017