Measurement of Quenched Axial Vector Coupling Constant in In-115 Beta Decay and its Impact on Future 0$\nu\beta\beta$ Searches

0$\nu\beta\beta$ is a nuclear process under investigation by numerous experiments, which if detected would demonstrate that neutrinos are Majorana particles. 0$\nu\beta\beta$ samples a wide range of intermediate forbidden nuclear transitions, which are governed by the quenched axial vector coupling constant ($g_A^{eff}$), the uncertainty of which plays a pivotal role in the uncertainty of the nuclear matrix elements. The recently reexamined role of $g_A^{eff}$ in these transitions has prompted measurements of $g_A^{eff}$ in highly forbidden decays via beta spectrum shape investigation with high resolution, low threshold bolometers. In this talk, we present measurements performed on a $LiInSe_{2}$ bolometer, with a 4-fold forbidden beta decay of In-115. This decay is sensitive to similar nuclear effects as 0$\nu\beta\beta$. We extracted the value of $g_A^{eff}$ through the use of a Markov Chain Monte Carlo taking into account experimentally determined background levels. We will discuss the obtained results along with possible impacts this study has for future 0$\nu\beta\beta$ measurements.