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Table 2 Muscle morphology according to sarcopenia status among community dwelling older men

From: Skeletal muscle morphology in sarcopenia defined using the EWGSOP criteria: findings from the Hertfordshire Sarcopenia Study (HSS)

  No sarcopenia Sarcopenia P value**
  N Mean (SD) N Mean (SD)
Fibre morphology      
Satellite cell density (cell/ mm2) a 63 3.8 (2.4) 6 1.7 (2.2) 0.061
Satellite cells to fibre ratio 63 0.06 (0.04) 6 0.02 (0.02) 0.063
Fibre counts 63 187.9 (1.96) 6 207.3 (2.07) -
Slow fibre proportion (%) 91 44.3 (12.4) 6 40.8 (24.0) 0.530
Fast fibre proportion (%) 91 55.7 (12.4) 6 59.2 (24.0) 0.530
Slow fibre area (μm2) 88 4820 (1198) 5 4113 (1122) 0.202
Fast fibre area (μm2) 88 3960 (1115) 5 3397 (1363) 0.280
Capillary density (capillary/mm2) 88 146.9 (42.8) 6 150.2 (55.3) 0.856
Capillary: fibre ratio 88 1.3 (0.3) 6 1.2 (0.4) 0.493
Fibre counts 88 241.9 (105.0) 6 350.8 (164.0) -
  1. aGeometric mean (SD)
  2. ** p value for t-test between non sarcopenic and sarcopenic individuals as defined by the EWGSOP criteria
  3. Sarcopenia status could not to be determined for two participants because of missing walking speed data hence maximum sample size of 97