So, for example, with the moves above you'd do 15 squats followed by 15 push-ups. Take a little breather then repeat that two more times. Then you move on to your walking lunges and lat pull-downs (and repeat those three times total, too). You can really do anywhere from eight reps to 15 (and even just two sets, if you don't have time for three), but "it’s not a bad idea for beginners to start with a 15-rep range to get comfortable with the exercises," says Davis. And while there's some debate over whether three sets of an exercise is really best, "it’s a great beginner model," says Davis. Don't overcomplicate things when you're just getting started.
Grab a pair of kettlebells, and set up with your feet just outside both bells. Hinge at the hip so you’re able to grab the handles of both bells; this should put you in a position similar to a deadlift position, and your hips should be lower than your shoulders. Tighten your glutes slightly and brace your core. Working to keep your back flat and rotating your hips only slightly, lift the right kettlebell and row it toward your lower chest, while still gripping the left kettlebell. Return the right kettlebell to the ground, then repeat on the left side. That’s 1 rep. Do 3 sets.
That's because women lose up to 5% of their lean muscle tissue per decade, starting in their 30s—and that number increases after 65. "I cannot stress enough how important muscle mass is to your life," says Perkins. "There is a direct correlation between your health and the amount of muscle mass that you have. The more you build, the faster your metabolism hums, the tighter and firmer you get, and the easier it is to lose weight and keep it off." It also decreases your risk for diabetes, stroke, heart disease, and makes you less likely to fall or become injured.
If you’re new to weight training, don’t worry. Perkins created this four-week program to help you to build a solid foundation of strength training and shift your body into a new place after all that cardio. The really great news? You only have to do this routine twice a week. Each week, the moves will stay the same, but we'll make the routine harder by changing the program variables (like rest, sets, reps, or load).