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Abstract #0254

T2 recovery unable to distinguish anaerobic exercise from aerobic

Nygren A, Norman B, Jansson E
Karolinska Institutet

T2 of skeletal muscle has been shown to be affected by ischemic conditions, thereby raising the question if anaerobic exercise may induce a different T2 recovery as to the response of a predominantly aerobic exercise. To induce a marked anaerobic metabolism in skeletal muscles, a wingate exercise test was performed. The exercise resulted in increased muscle volume and plasma venous lactate with delayed blood flow recovery. However, maximal T2 value post-exercise or the recovery rate were not different than after a high intensity endurance exercise. Therefore, T2 seems unable to distinguish the anaerobically driven exercise from a predominantly aerobic exercise.