PURPOSE: The aim of the study was to examine muscle metabolism in athletes by 31P-spectroscopy (MRS) and to evaluate to what degree the respective resonance spectrum correlates with the kind of muscle exercise. MATERIAL AND METHODS: Twelve runners and 12 young ice skaters were studied by 31P-spectroscopy of the gastrocnemic medialis muscle and the vastus medialis muscle using a surface coil at 1.5 T. RESULTS: Sprinters displayed a higher phosphocreatinine/inorganic phosphate (PCr/Pi) and PCr/beta-ATP ratios than marathon runners. The respective parameters for middle distance runners were in between. Ice skaters could prospectively be divided into sprint- and long-distance runners by our results which correlated with the athletes' training performance. CONCLUSION: 31P-spectroscopy can evaluate the distribution of muscle fiber types. Thus, the athlete's potential for sprint- or long-distance running can be determined. Additional studies will have to demonstrate to what extent training may change muscle fiber distribution.
PURPOSE: The aim of the study was to examine muscle metabolism in athletes by 31P-spectroscopy (MRS) and to evaluate to what degree the respective resonance spectrum correlates with the kind of muscle exercise. MATERIAL AND METHODS: Twelve runners and 12 young ice skaters were studied by 31P-spectroscopy of the gastrocnemic medialis muscle and the vastus medialis muscle using a surface coil at 1.5 T. RESULTS: Sprinters displayed a higher phosphocreatinine/inorganic phosphate (PCr/Pi) and PCr/beta-ATP ratios than marathon runners. The respective parameters for middle distance runners were in between. Ice skaters could prospectively be divided into sprint- and long-distance runners by our results which correlated with the athletes' training performance. CONCLUSION: 31P-spectroscopy can evaluate the distribution of muscle fiber types. Thus, the athlete's potential for sprint- or long-distance running can be determined. Additional studies will have to demonstrate to what extent training may change muscle fiber distribution.
Authors: Klaus Brechtel; Juergen Machann; Margarete Pick; Juergen F Schaefer; Claus D Claussen; Fritz Schick Journal: Korean J Radiol Date: 2009 Nov-Dec Impact factor: 3.500
Authors: José L M Mesa; Jonatan R Ruiz; M Marcela González-Gross; Angel Gutiérrez Sáinz; Manuel J Castillo Garzón Journal: Sports Med Date: 2002 Impact factor: 11.136
Authors: Eike Hoff; Lars Brechtel; Patrick Strube; Paul Konstanczak; Gisela Stoltenburg-Didinger; Carsten Perka; Michael Putzier Journal: Biomed Res Int Date: 2013-07-15 Impact factor: 3.411