Relationship between resting medial gastrocnemius stiffness and drop jump performance |
| |
| Institution: | 1. Department of Sports Research, Japan Institute of Sports Sciences (JISS), Tokyo, Japan;2. Graduate School of Engineering and Science, Shibaura Institute of Technology, Saitama, Japan;3. Graduate School of Health Management, Keio University, Kanagawa, Japan;4. College of System Engineering and Science, Shibaura Institute of Technology, Saitama, Japan;5. Center for General Education, Tokyo Keizai University, Tokyo, Japan;6. Japan Society for the Promotion of Science, Tokyo, Japan;7. Faculty of Sport Sciences, Waseda University, Saitama, Japan;1. Department of Biomechanics in Sports, Technical University Munich, Germany;2. Centre for Sensorimotor Performance, The University of Queensland, Australia;3. Human Movement Science, Bundeswehr University Munich, Germany;1. Human Movement Science, Faculty of Sport Science, Ruhr-University Bochum, Germany;2. School of Human Movement and Nutrition Sciences, University of Queensland, Australia;1. University of Primorska, Faculty of Health Sciences, Izola, Slovenia;2. InnoRenew CoE, Livade 6, 6310 Izola, Slovenia;3. University of Belgrade, Institute for Medical Research, Belgrade, Serbia;4. University of Belgrade, Faculty of Sport and Physical Education, The Research Centre, Belgrade, Serbia;5. University of Primorska, Andrej Maru?i? Institute, Koper, Slovenia;6. S2P, Science to practice, Ltd., Laboratory for Motor Control and Motor Behaviour, Ljubljana, Slovenia |
| |
| Abstract: | Although the influence of the series elastic element of the muscle–tendon unit on jump performance has been investigated, the corresponding effect of the parallel elastic element remains unclear. This study examined the relationship between the resting calf muscle stiffness and drop jump performance. Twenty-four healthy men participated in this study. The shear moduli of the medial gastrocnemius and the soleus were measured at rest as an index of muscle stiffness using ultrasound shear wave elastography. The participants performed drop jumps from a 15 cm high box. The Spearman rank correlation coefficient was used to examine the relationships between shear moduli of the muscles and drop jump performance. The medial gastrocnemius shear modulus showed a significant correlation with the drop jump index (jump height/contact time) (r = 0.414, P = 0.044) and jump height (r = 0.411, P = 0.046), but not with contact time (P > 0.05). The soleus shear modulus did not correlate with these jump parameters (P > 0.05). These results suggest that the resting medial gastrocnemius stiffness can be considered as one of the factors that influence drop jump performance. Therefore, increase in resting muscle stiffness should enhance explosive athletic performance in training regimens. |
| |
| Keywords: | Shear modulus Medial gastrocnemius Soleus Rate of torque development Electromechanical delay |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
