Healthy Aging
Physical Vitality
Physical activity builds physical vitality. With every year of your life, you have more to gain from being physically active; as your age-related risks of chronic disease increase, regular exercise generally slows that trend. Some research suggests that the heart and blood vessel (cardiovascular) benefits you get from physical activity may also help your brain stay healthy.1 In fact, you're even more likely to notice the benefits of regular exercise if you already have a chronic condition, such as depression, coronary artery disease, or diabetes.
What are the benefits of being physically active?
On a daily basis, being physically active improves your quality of life by improving your:
- Energy level.
- Mental sharpness.
- Mood (regular aerobic exercise can help manage depression, anxiety, and stress).
- Balance, strength, and flexibility, which are key to preventing injuries and falls.
- Odds against chronic illness. Physical activity also often helps manage chronic illness with fewer medications.
As you get older, an inactive lifestyle increases your risk of chronic disease. Conversely, getting regular aerobic exercise is one of your best defences against chronic diseases such as:
- Coronary artery disease.
- Osteoarthritis.
- High blood pressure.
- Obesity.
- Osteoporosis (weight-bearing exercise is necessary).
- Type 2 diabetes.
- Chronic obstructive pulmonary disease (COPD).
- Cancer.
If you already have a chronic disease, becoming physically active may decrease your need for medication to treat or control it.
I'm not physically active right now—how do I start?
If you've been inactive for awhile, you don't necessarily have to set your sights on becoming athletic—your first goal is to simply start moving more each day. Before you do, though, get off to a smart start by seeing your health professional for a full physical examination. Then you can follow his or her recommendations as well as these guidelines for becoming more physically active.
- Add more movement to your daily routine. For example, put away the TV remote control, park farther from building entrances, and take stairs instead of elevators. Walk a lap or two around your house or apartment, then down the street or around a nearby park. Buy a pedometer and gradually increase the number of steps you take each day.
- Start with small, short-term goals. It's easiest to stick to something new when you have early, frequent successes. For example, make a plan to walk for 10 minutes a day, 3 days a week, for 2 weeks.
- Buddy up with a friend. There's no better way to stay on track with exercise than with a buddy you look forward to seeing, who also counts on you (especially on days when you could easily find an excuse not to exercise).
- Change the way you think about yourself—start thinking, dressing, and eating like the active, vital person you plan to be.
- Make physical fitness a habit with such simple tasks as writing exercise into your weekly calendar.
After a few weeks of regular physical activity, you will probably feel better than before. When you're ready for more, add some variety to your activity schedule with new ways to build flexibility, aerobic fitness, and muscle strength. Experts advise that people ages 18 to 65 do either of these things to get and stay healthy:2
- Do moderate activity for at least 30 minutes a day, 5 days a week or more. Moderate activity is equal to a brisk walk, cycling about 16 to 19 km/h (10 to 12 mph), sailing, or shooting hoops. You notice your heart beating faster with this kind of activity.
- Do vigorous activity for at least 20 minutes a day, 3 days a week or more. Vigorous activity is equal to jogging, cycling at least 19 km/h (12 mph), cross-country skiing, or playing a basketball game. You breathe rapidly and your heart beats much faster with this kind of activity.
Being active in several chunks of 10-minutes or more throughout the day can count towards the above recommendations. You can choose to do one or both types of activity. If you are just starting a fitness program or if you are older than age 65, talk to your doctor about how often is safe for you to exercise.
- Flexibility is increasingly important as age-related stiffness becomes a normal part of your daily life. A daily stretching or yoga routine can greatly improve your ease of movement. To help prevent injury, it's important to stretch before and after any activity that uses your joints and muscles for more than a few minutes.
- Aerobic fitness conditions your heart and lungs. Aerobic (oxygen-using) exercise is any activity that gets your heart pumping faster than when you're at rest, circulating more oxygen-carrying blood throughout your body. All kinds of daily activities can be aerobic, ranging from housecleaning, yard work, or pushing a child on a swing to walking, bicycling, or playing tennis. On most days, try to do at least 30 to 60 minutes of aerobic activity.
- Muscle strengthening includes building more powerful muscles and increasing how long you can use them (endurance). Weight lifting builds stronger muscles and strengthens bones, while pushups build endurance. No matter what your age and whether you've done it before, you can gain great benefit from strength training. As you age, muscle strengthening plays an increasingly big part in healthy weight control, because muscle is the primary cell type that uses calories. Muscle strengthening is also key to improving or preventing balance problems, falls, and therefore bone fractures. Try doing strengthening exercise at least 2 times each week.3
For more information, see the topic Fitness.
I'm already physically active. Is there anything more I should be doing?
Even if you're happy with your fitness routine, it's a good idea to periodically stop, think, and rework your activities and goals. As age-related issues gradually enter into your fitness equation, keep the following factors in mind.
- Beyond age 60, it's important to spend as much time building strength and flexibility as you spend on aerobic fitness. Strength and flexibility help your body better handle the age-related changes, including loss of muscle and problems with balance. To maintain or improve your balance and resilience, include stretching, muscle strengthening, and such balance-building activities as yoga or tai chi in your weekly routine.
- It's normal to have to gradually adjust your expectations of how far you can push your body. If you're used to pushing yourself, accept your body's changes and tend toward moderation.
- Cross-training, or including different activities in your activity calendar, helps you build better overall fitness and helps prevent injury from overuse.
- Replacing a "lost" activity is a key to staying active. For instance, if you can no longer run, you might try walking, biking, and/or swimming.
- Injury generally takes longer to recover from as you age. If you are injured, allow your injury time to heal—yet keep the rest of your body moving! You can choose from a list of alternate activities, such as swimming, water aerobics, biking, walking, yoga, Pilates, or rowing.
- To prevent injury, start a new activity gradually, avoid overusing your body, and stretch often.
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| Author: | Shannon Erstad, MBA/MPH Carrie Henley | Last Updated: August 15, 2006 |
| Medical Review: | Renée M. Crichlow, MD - Family Medicine Tom Bailey, MD - Family Medicine Christine Fordyce, MD - Family Practice/Geriatrics | |
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