WORK OUT WITH WEIGHTS FOR HEALTHY BONES: ABOUT STRENGTH TRAINING
July 23rd, 2011In strength training, “flow” is built on a foundation of maintaining good posture and using the appropriate muscles to do the work. “Cheating,” by letting another, more distant muscle take over, exposes you to the risk of strain or injury, and undermines building strength in the targeted area. You may go through the motions, striking the positions and diligently counting the repetitions, but all you’ll achieve is finishing the workout. You won’t be getting stronger, at least not in a healthy and efficient way.So note the keys to correct body positioning. Your abdominal muscles are central to most of the movements you make with any part of the body—and are key for balance and for preventing back strain—so keep them engaged. Keep the natural curve in your back, and don’t compensate for other muscles’ work by arching or hyperextending. Anytime you lift your arms over your head, or do any other motion that strains the lower back, use a “pelvic tilt” to protect your back: draw your abdominal muscles gently in and up, pulling your tailbone down and as if to curve it forward slightly, rocking your hips forward just a bit. (This is a “I know it when I feel it” kind of motion, which no amount of description can really capture. You just have to try it for yourself and see.) Don’t “lock” your joints (pushing an extension as far as it can go when straightening a limb). Keep them slightly soft instead. Keep your wrists in line with your forearms.Good technique is equally important. Don’t hold your breath! Exhale as you do the first part of a move that engages your muscles strongly, and inhale on the release. Use your full range of motion, but don’t lock your joints. Move slowly, using a count of three for the first part of the exercise (tightening the muscles) and another three seconds to release. In the following exercises, muscle is actually built more in that release than in the initial movement, when it feels like you are working harder. Don’t slack off in the second half, or you’ll be getting less than half the full benefit.Finally, use a sensible approach to resistance and repetition to get the most out of your strength training. You should do two sets of fifteen repetitions of each exercise below, separated by a minute’s rest. Use enough resistance (whether from hand weights, free weights, a weight machine, exercise bands, or just your body and gravity) so that the last three or four of the second set are a little difficult, but not so much that you can’t get to the end of that second set. Doing the full routine two or three times per week will give you a good bone-density workout as a complement to your weight-bearing aerobic exercise. When the last few reps in the second set are easy, step up the amount of resistance you are using. Increase the weight no more than 10 percent at a time, so you will still be able to perform two sets with the new, heavier weight. Rest a day between strength workouts. (If you want to do some every day, focus on lower body and abs one day, and upper body the next, so each muscle group gets a day of rest.)The exercises given here will hit all of the major muscle groups, with a particular focus on your hips and back. Many of them require no more resistance than gravity and the weight of your own body, and some call for hand weights. (You’ll find equivalent moves on weight machines at the gym. You can also use exercise bands, which are more portable but less precise.) Start with 1- to 3-pound weights (men, or anyone who already has significant upper-body strength, may begin with somewhat higher weights), moving up to heavier ones as you become able to. If an exercise doesn’t need weights, start with more advanced options when you can. There are no prizes for lifting the heaviest weights or stretching the farthest. As long as your body is working—hard, but safely—you’re benefiting. If you are still using 3-pound weights for the shoulder press months later because the next increment is just too heavy to complete your sets, who cares? If your shoulders don’t clear the floor by more than 1/4 inch in the crunch, so what? Keep at it and progress will come. But it looks different for everyone. Your body will show you what to do, and when to move on—and how much good you are doing yourself.*124\228\2*