Noninvasive Monitoring of Training Induced Muscle Adaptation with -MRS: Fibre Type Shifts Correlate with Metabolic Changes
Figure 4
Changes in the distribution of type-II-fibres, [PCr]/[] and [PCr]/[βATP] during intervention. Training induced changes of type-II-fibres were similar in pattern to those of [PCr]/[] but different to those of [PCr]/[βATP]. Parameters are shown as median values; whiskers indicate interquartile range (IQR); Asterisk (*) indicates . Friedman test was not significant for the 3 parameters during intervention; Wilcoxon test resulted in a significant increase in type-II-fibres between and , and in a significant decrease between and (). : pretraining, : after speed-strength training, : after endurance training, : after detraining.
