“…Previous research has shown that augmenting lumbar spine parameters (e.g., lumbar flexion angle) during lifting is effective in reducing peak lumbar flexion (Agruss et al, 2004 ; Kernozek et al, 2006 ; Lavender et al, 2007 ; Matheve et al, 2018 ; Pinto et al, 2018 ; Boocock et al, 2019 ; Lorenzoni et al, 2019 ; Punt et al, 2020 ). Reduction in peak spine flexion observed during practice was maintained when feedback was removed (i.e., transfer test) in Agruss et al ( 2004 ), Kernozek et al ( 2006 ), Lavender et al ( 2007 ), Matheve et al ( 2018 ), Pinto et al ( 2018 ), and Punt et al ( 2020 ), indicating that learning was starting to occur, but none of the studies included a long-term retention test and it is therefore unclear whether this performance improvement can persist over time. Nevertheless, these studies indicate that providing augmented feedback on how much an individual flexes their spine is effective in reducing spine flexion.…”