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Jump power with and without semi-lunar process (SLP). Only extensor tensions within 0.25 N of 15 N were used. Jump power with the SLP intact (black) and with the SLP disabled (gray). There is a significant difference in the magnitude of the peak power (1.94±0.05 mW with, 1.10±0.04 mW without, P<10−30), the total energy during the jump impulse (15.3±0.4 mJ with, 8.58±0.4 mJ without, P<10−30) and the duration of the impulse (24.7±0.3 ms with, 24.1±0.3 ms without, P<10−10).
