According to previous published works, the eggshell membrane has shown a positive effect on the joint pain relief. In this study, several tests were performed to measure the effect of Ovomet ® (eggshell membrane) supplementation on the subjective perception and biomechanical variables in institutionalized patients of advanced age before and after 50 days of 300 mg Ovomet ® administration. The aim was to demonstrate and verify the protective and regenerative effects of Ovomet ® on the joints. To measure this effects some pain perception questionnaires were performed and biomechanical variables such as muscle strength and power in knee extension, linear stiffness of the Achilles tendon (AT) by ultrasound, muscle stiffness by means of sensor in two different manoeuvers were carried out. In conclusion, the daily intake of 300 mg Ovomet ® during 50 days showed a positive effect on the linear stiffness of the AT in institutionalized elderly patients showing the usefulness of the echography technique of linear stiffness of the AT to study the factors that increase the protection capacity of the joints.

The eggshell membrane has shown a positive effect on joint pain relief. In this study, several tests have been performed to measure the effect of Ovomet® supplementation on subjective perception and biomechanical variables to crossfiters before and after 50 days of administration.Pain perception questionnaires were performed in order to assess and demonstrate the protective or potentiating of Ovomet® effect on athletes' joints. In addition, we measured biomechanical variables such as muscle strength and power in knee extension, linear stiffness of the Achilles tendon (AT) by ultrasound, muscle stiffness through sensor in two different manoeuvers.Of all the biomechanical variables, the measurement of tendon stiffness by ultrasound, proves to be a useful tool to study the factors that can affect the joints, like our object of study, the effect of joint supplementation on athletes.