The two discs are built to rotate slightly as you lower to the ground, defining more muscles and reducing joint strain on wrists and elbows. (thefashionablehousewife.com)
You can ease joint strain and help prevent injury by investing in pet stairs or a ramp. (onegreenplanet.org)
Ergonomic grips help distribute weight evenly, reducing pressure points and joint strain on wrists and elbows (aimworkout.com)