In the 1970s carries parents so they're dumbbells so they could purchase an all-in-one apparatus to Target the whole body rather than a select muscle group what did they most likely purchase and elliptical trainer anomalous machine and adjustable plate loaded barbell or a peloton bike

In the 1970s, the most likely all-in-one apparatus that people would have purchased to target the whole body would be an adjustable plate-loaded barbell. Elliptical trainers and Peloton bikes did not exist in the 1970s, as they were developed later. The adjustable plate-loaded barbell allows for a variety of exercises that target multiple muscle groups, making it a popular choice for home fitness during that time.