This is a research-level text which investigates confinement effects in the low-energy regions of particle physics using the methods of nonlocal quantum field theory. It proceeds to elucidate their role in describing microscopic quantities that characterize hadron interactions. The authors present a quark confinement model to describe the low-energy physics of light hadrons. Hadrons are treated as collective colourless excitations of quark-gluon interactions, while the quark confinement is suggested to be provided by averaging over gluon backgrounds. This model is shown to reproduce the low-energy relations of chiral theory in the case of null momenta. The text aims to allow researchers to obtain more sophisticated hadron characteristics such as slope parameters and form factors.