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Table 3 Key anthropometric variables, as measured via DEXA, after 4 weeks of cycling exercise and a diet supplemented with either KER or CAS protein

From: The effect of chronic soluble keratin supplementation in physically active individuals on body composition, blood parameters and cycling performance

  Keratin Casein
Pre Post Pre Post
% BF 22.5 ± 4.3 22.2 ± 4.3 22.4 ± 4.7 22.4 ± 4.6
Lean mass (kg) 61.0 ± 8.2 62.0 ± 8.4a 61.7 ± 8.3 61.8 ± 8.1
Fat mass (kg) 19.1 ± 6.9 19.0 ± 6.6 19.2 ± 7.3 19.3 ± 7.2
Total Mass (kg) 85.1 ± 14.3 86.0 ± 14.1 86.3 ± 14.7 86.2 ± 14.3
Lean to fat ratio 3.4 ± 0.8 3.5 ± 0.9 3.5 ± 0.9 3.5 ± 0.9
Bone mineral density (g/cm2) 1.3 ± 0.1 1.3 ± 0.1 1.3 ± 0.1 1.3 ± 0.2
  1. Note:a denotes significantly different to Pre (p ≤ 0.05)