However, a much more effective way to preserve muscle mass is by performing resistance training or basic strength training exercise. (masteringdiabetes.org)
Standing ab exercises are effortless to perform and suitable to build basic strength before doing others on the floor. (abmachinesguide.com)
When it comes to strength training, the general rule is to work all your muscle groups at least twice a week for basic strength and health gains. (verywellfit.com)