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Table 3 Normalized proteoglycan content in the cartilage of cyclically loaded rabbit metacarpophalangeal joints and their contra-lateral controls

From: Long-term cyclical in vivoloading increases cartilage proteoglycan content in a spatially specific manner: an infrared microspectroscopic imaging and polarized light microscopy study

Rabbit no. Normalizeda PG content (control) Normalized PG content (loaded) Difference
1 0.05 0.22 0.17
2 0.07 0.09 0.02
3 0.21 0.31 0.10
4 0.12 0.17 0.05
5 0.14 0.18 0.04
6 0.16 0.18 0.02
Mean 0.12 0.19 0.07
SD 0.06 0.07 0.06
Significanceb    0.03
  1. aThe normalized values were obtained by dividing the value of PG content from each joint by the value of the collagen content of that joint; bstatistical significance was calculated using the two-tailed, paired Student t test (α = 0.05). PG, proteoglycan; SD, standard deviation.