'Valor Fitness CB-13 Back Extension'

02:17 May 28, 2022
'The CB-13 Valor Fitness Back Extension allows the user to focus on stretching muscles while exercising muscles. Great exercise to build-up lower back muscles. Performing a reverse sit up strengthens the lower back muscles which usually are forgotten and then back pain sets in when they are used to much in such a short time.' 

Tags: back , extension

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