Training by means of eccentric overload devices is increasingly used in the field of training and physical readaptation. This training method consists of traction the musculature with a rope rolled in a rotating base, which is usually a cylindrical cone (image A) or a disc (image B), depending on the machine type. After unrolling that rope, it will begin to roll to the opposite side, returning a force proportional to that which has been applied in the opposite direction. This is commonly referred to as the yo-yo effect.
There is increasing evidence of the benefits of eccentric overload training to improve sports performance, injury prevention, or improving the quality of life of the society (Sabido y col., 2017; Tesch y col. 2017, de Hoyo y col., 2015). Although this working area is promising, there are certain components about their use that still have to be defined. In our laboratory, within the line of investigation of eccentric overload, we board:
- Definition of the variables that compose the training overload.
- Reliability of the evaluation tests with these devices and the design of familiarization protocols.
- Effects of post-activation potentiation (PAP) through the use of such devices and comparison with traditional protocols.
- Relationship between the eccentric overload tests and other physical tests.
- Adaptations of the training with different loads handled and improvements in sports performance.
- Structural changes after training programs using this methodology.
REFERENCES:
– de Hoyo, M., Pozzo, M., Sañudo, B., Carrasco, L., Gonzalo-Skok, O., Domínguez-Cobo, S., & Morán-
Camacho, E. (2015). Effects of a 10-week in-season eccentric-overload training program on muscle-
injury prevention and performance in junior elite soccer players. International journal of sports
physiology and performance, 10(1), 46-52.
– Sabido, R., Hernández-Davó, J. L., Botella, J., Navarro, A., & Tous-Fajardo, J. (2017). Effects of adding a
weekly eccentric-overload training session on strength and athletic performance in team-handball
players. European journal of sport science, 17(5), 530-538.
– Tesch, P. A., Fernandez-Gonzalo, R., & Lundberg, T. R. (2017). Clinical applications of iso-inertial,
eccentric-overload (YoYo™) resistance exercise. Frontiers in physiology, 8, 241.