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Anatomical quadriceps muscle CSA measured at 50 % femur length by use of MRI, before and after the period of training. Open symbols show individual values, open column shows group mean value prior to training, and s.e.m. is indicated by error bars. Filled symbols and hatched column show individual values and group mean value, respectively, following training (n = 11). Pre- to post-training differences: **P < 0.001.
