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Table 3 Myofibre volume and myonuclear domain during growth of EDL myofibres

From: Dynamics of muscle fibre growth during postnatal mouse development

Age (days)

P7

P14

P21

P56

Myofibre volume (×103 μm3)

481.8

1208.8

2238.8

6788.7

Myonuclear domain (×103 μm3)

4.7

5.9

9.2

26.5

  1. Mean total myofibre volume was calculated from multiplying mean myofibre length by mean myofibre cross-sectional area at each age. Myonuclear domain was derived by then dividing mean total myofibre volume by the mean number of myonuclei per myofibre at each age.