While parenting kids is full of everyday miracles and memory - making moments, it also includes a significant amount of stress along the way. (mindbodygreen.com)
If you don't match your knee joint with the axis of rotation of the machine, and make the common error of having your knees too far forward, you place a significant amount of stress on the joint rather than strengthen the muscles. (flippingfifty.com)
Can they resolve the issue when they're under a significant amount of stress? (elearningindustry.com)