Table 2

Results of Muscle Testing legend

Low IGF-I (n = 20)High/Normal IGF-I (n = 32)
Strength (N)311 (91)410 (124)
Leg CSA (cm2)163.6 (48.8)165.3 (28.8)
Muscle CSA (cm2): right100.1 (23.9)114.0 (20.6)
Muscle CSA (cm2): left95.6 (24.4)109.9 (21.4)
Fat CSA (cm2)56.9 (30.6)46.0 (12.0)
Strength/CSA (N/cm2)5.99 (0.98)6.94 (1.02)
Fat/muscle0.56 (0.24)0.41 (0.10)
  • legend CSA = cross sectional area. The difference between the two groups in fat CSA did not reach statistical significance (p = 0.07). Fat/muscle is the relative proportion of fat and muscle on computerized tomography scanning at midfemur. Tomography was available for 48 patients (4 missing from the normal/high IGF-I group). Unless otherwise stated, data for the stronger leg are shown.

  • p < 0.05;

  • p < 0.01;

  • p < 0.005.