The facts here reported suggest that if minced muscle regenerates, while a less brutally injured muscle regenerates poorly, or not at all, it would be because the destruction of the histological structures would be very rapid, leaving on the spot quasi-normal contractile macromolecules, usable for regeneration.
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Maréchal, G., & Plaghki, L. (1976). Les protéines contractiles du muscle strié durant la dégénérescence et la régénérescence du muscle strié après traumatisme. Acta Neurologica Belgica, 76(2), 354-355. https://hdl.handle.net/2078.5/214299 (Original work published 1976)