Rob,

Research has only proved muscular hyperplasia in cats and rats, and hyperplasia of cellular structures within the human (sarcoplasmic organelles and myofibrillar-mitochondria). So far it is inconclusive, leaning towards no, that true muscular hyperplasia exists in human living tissue.

The muscle fiber can split cross-sectionally, but not at the nerve root base. For true hyperplasia to occur, this splitting needs to occur neurally. Whereas, there would have to be new nerve root branches innervating the now split cross-sectional area. Essentially, neural regeneration would have to exist.

But then again, look at Christopher Reeve?

For more information on this subject check out Siff and Verkhoshansky, "Supertraining."

All the best,
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