We all know that regular physical activity promotes general good health, reduces the risk of developing many diseases, and helps you live a longer and healthier life. For many of us, “exercise” means walking, jogging, treadmill work, or other activities that get the heart pumping. But often overlooked is the value of strength-building exercises. Once you reach your 50’s and beyond, strength (or resistance) training is critical to preserving the ability to perform the most ordinary daily living activities and maintaining an active and independent lifestyle.
The average 30-year-old will lose about a quarter of his or her muscle strength by age 70 and half of it by age 90. “Just doing aerobic exercise is not adequate,” says Dr Robert Schreiber, physician-in-chief at Hebrew SeniorLife and an instructor in medicine at Harvard Medical School. “Unless you are doing strength training, you will become weaker and less functional.”
What is strength training?
Strength training encompasses any of the following:
- Free weights, such as barbells and dumbbells
- Resistance (elastic) bands of varying length and tension that you flex using your arms and legs
- Exercises that use your body weight to create resistance against gravity.
How much do you need?
A beginner’s strength-building workout takes as little as 20 minutes, and you won’t need to grunt, strain, or sweat like a cartoon bodybuilder, either. The key is developing a well-rounded program, performing the exercises with good form, and being consistent. You will experience noticeable gains in strength within four to eight weeks.
When you start it is very important you choose light weights, learn the correct techniques, and go slow so you don’t injure yourself. Mild to moderate muscle soreness between workouts is normal, but back off if it persists for more than a few days.
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