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Table 1 Participant characteristics

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

 

N

Mean (SD)

Min

Max

Age (yrs)

99

72.4 (2.4)

68.3

76.8

Height (cm)

99

174.1 (6.5)

157.6

193.7

Weight (kg)

99

82.7 (12.6)

58.1

118.8

DXA lean mass (kg)

99

56.4 (6.5)

42.7

75.9

Grip strength (kg)

99

38.7 (8.1)

18.0

66.0

Walking speed (m/s)a

97

1.1 (0.2)

0.5

1.6

Chair rise time (s)b

96

17.1 (4.0)

8.3

27.2

Diagnosis of Sarcopenia

97

6 (6.2 %)

  

Fibre morphology

    

Satellite cell density (cell/ mm2)c

69

3.6 (2.5)

0.0

26.4

Satellite cell to fibre ratio

69

0.05 (0.04)

0.00

0.18

Fibre counts

69

189.5 (1.96)

23.0

723.0

Slow-fibre proportion (%)

99

43.9 (13.1)

18.9

88.3

Fast-fibre proportion (%)

99

56.1 (13.1)

11.7

81.1

Slow fibre area (μm2)d

95

4775 (1202)

2059

9868

Fast fibre area (μm2)d

95

3953 (1144)

1843

7424

Capillary density (capillary/mm2)e

96

146.5 (43.2)

57.1

254.1

Capillary to fibre ratioe

96

1.3 (0.3)

0.6

2.2

Fibre counts

96

248.5 (110.5)

44.0

577.00

  1. aData not available on two participants
  2. bData not available on three participants
  3. cGeometric mean (SD), 30 slides were unsuitable due to suboptimal SC staining
  4. d4 slides were unsuitable for fibre area determination
  5. e3 slides were unsuitable due to suboptimal capillary staining