Elastic Sit Up Foot Operated Pull Apparatus

These kind of vintage strength training tool equipment are known under several names, such as: Gut Buster Sit Up Bar. Tummy Trimmer. Pull-Up Exerciser. Leg Foot Spring Exerciser. Gut Trimmer. Ab Rower. Bought this as second hand for the equivalent of a US dollar or two. Spring resistance training. Spring rower. Spring pull exercise. Pull up exerciser. Body trimmer equipment. Rowing workout using springs. How to do exercise with spring rower. How to use spring trimmer equipment.