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The properties of mesonic resonances can be calculated in terms of the low-energy coefficients of chiral perturbation theory (χPT) by extending unitarized χPT to higher energies. On the other hand, these low-energy coefficients can be calculated in two different models, namely i) by assuming resonance saturation and ii) within a constituent quark model. By matching the expressions of the two models combined with the results of unitarized χPT and the Weinberg sum rules, the properties of vector and axial-vector mesons can be calculated in the combined large-N
c
and chiral limit
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