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Fig. 4. Sustained effect of eccentric exercise on post-tetanic potentiation (PTP)
at different muscle lengths. The increase in submaximal force (
F) of
muscles in the potentiated compared with the non-potentiated condition was
calculated before (closed triangles) and 80 min after (open triangles)
eccentric exercise. Different effects of muscle length were found in the
pre-compared with the post-exercise condition. On average, PTP had similar
effects (P>0.05) preand post-exercise. However, post-exercise, PTP
was significantly lower at short and higher at long muscle lengths than
pre-exercise. Data are presented as mean ±
S.E.M. *Significant difference
between pre- and post-exercise condition.