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Logo of nihpaAbout Author manuscriptsSubmit a manuscriptHHS Public Access; Author Manuscript; Accepted for publication in peer reviewed journal;
 
From:
J Morphol. Author manuscript; available in PMC 2011 March 15.
Published in final edited form as:
J Morphol. 2010 December; 271(12): 1501–1508.
doi: 10.1002/jmor.10890

TABLE 6

Asymmetry during early postnatal growth age

Limb metric2 MonthsP value3 MonthsP value7 MonthsAdult
Femur
 Length1.2a0.9b**1.5a1.2
 Cortical thick.−15ansns−8.9
Tibia
 Lengthn.sn.s***2.10.2
 Cortical thick.−7c−11a*ns−6
Metatarsal
 Length−1.7b−1.9b*ns0.2
Humerus
 Lengthn.s***−2.3a−1.4a−1.4
 Cortical thick.nsnsns4.8
Radius
 Length1.4a1.1a**1.5a1.6
 Cortical thick.ns**11b15a−0.4
Ulna
 Length0.6b1.2a2a1.6
 Cortical thick.−12a***6c16a−3.6
**Asymmetry values derived from radiographs of 45 foxes at ages two months, three months and seven months. Values for limb length and cortical thickness are presented and compared with adult values from Tables 1 and and2.2. %LR = (x1xr)/mean(xr,x1) × 100. The sign of the %LR indicates the direction of the asymmetry as Left minus Right (+, L>R; −, R>L). The significance of the paired T-test was:
aP>0.001;
bP<0.01;
cP<0.05;

ns not significant (DA could not be demonstrated). Adult values were all significant (see Tables 1 and and2).2). Three levels of significant change in asymmetry between the time intervals 2–3 months and 3–4 months are indicated (*<0.05, ** <0.01, ***<0.001).