healthy old age has to be earned; it can't be taken for granted. Close to half of older Americans suffer from arthritis, about 30 percent have high blood pressure or heart dis- ease, and more than 10 percent have diabetes. Cancer, osteoporosis and emphysema also are prevalent in this population. These illnesses, however, can often be prevented until very late in life when lifestyle factors, such as exercising, have an impact. Sandor Davis hits the rowing machine. "Exercise should be like brush- ing your teeth; it's something you muscle strength and power also need to be doing on a daily basis, occurs. regardless of age," explains Dr. Steve It appears, however, that much of Korotkin, a cardiologist. The research the physiologic decline doesn't come demonstrates that a sedentary lifestyle from the aging process itself but from accelerates the unwanted factors of a decline in physical activity. aging. b. Exercise slows down the loss of The American College of Sports muscle strength and helps maintain a Medicine (ACSM) recognizes the car- better range of motion, a healthy oxy- diovascular benefit of resistance train- gen intake, and cardiovascular and ing. Previously, it was thought that respiratory functions. strength and endurance training pro- What's more, older adults who duced little or no cardiovascular ben- exercise regularly typically outperform efits, but the research now shows that, people half their age in many sports over time, resistance training reduces and have fewer risks of heart disease. stress on the heart. And for the first To be effective, exercise routines time, flexibility training has been need to have frequency, duration and added to the recommendations intensity," explains Korotkin. "To get because it decreases the potential for the very best results, exercise should injury and improves overall physical be scheduled for five or six days a function. week, and last at least 30 minutes. "I've had a personal trainer come Exercising two or three times a to my home twice a week for the past week provides some benefit, but exer- 12 years," says Naomi Harwood, who cising five times a week provides is in her late 60s. "I don't have unre- twice the benefit. alistic goals; I just want to keep mov- "Walking two miles in 30 minutes ing and I know I'm not disciplined accrues more benefit than running enough to do this myself. It took two miles in 12 minutes. Intensity, some time, but I have more stamina within reason, isn't the most crucial and agility than I did when I first factor. Finally, the type of exercise started. I walk differently and even becomes important because there are think differently. I don't shlep different guidelines for aerobic exer- around." cise, resistance training and flexibili- Jude Timlin, personal trainer at ty," says Korotkin. Orchard Lake Powerhouse Gym, As people age, their connective tis- works with Harwood. "We do a lot of sue and muscles stiffen, resulting in a weight lifting because strength train- loss of muscle flexibility. A loss of ing gives her balance and stability in her daily activities," explains Timlin. "For aerobic exercise with older clients I use the treadmill or station- ary bike because both have stability and the client can control her pos- ture. I don't want them using some- thing like a Stairmaster because it doesn't provide stability and an older person could hurt their lower back because it's difficult to maintain cor- rect posture." Timlin says stretching before and after exercising is even more impor- tant with older people to avoid injuries. "These are static stretches which set the joint in a position so that the person can stretch her liga- ments and muscles," says Timlin. "My job is to make sure clients like Naomi are performing the stretches and exercises correctly because, unlike someone 30 years younger, incorrect technique is more likely to cause an injury to an older person." Lorraine Bayle and Ruth Gould know all about exercise technique. They've been taking stretching and ballet-type exercise classes from Reva Usher for many years at the Kahn Jewish Community Center. Usher recently turned 82. "Exercising is good for all ages and I've been teaching women for close to 60 years," says Usher. "One of the things I've always emphasized is that exercising works, but for the other hours in the day everyone needs to work at maintaining a correct spine posture. Exercise alone won't do that and the negative results can be crippling." The kibbitzing that takes place in the JCC workout room, around the track and on the gym floor doesn't hide the perspiration of the many men — in their 60s, 70s and 80s — who work out almost daily. Sol Dembs, age 78, uses the treadmill and track and has been walking for 20 years. Carl Carron, age 70, lost 70 pounds 40 years ago and uses exercise five days a week to help maintain his weight. His exercise program includes aerobic and strength training. Arnold Citron has run in eight marathons — he placed first in his class at the age of 72. Now, at 80, Citron exercises five and six days a week and uses the machines for strength training. The association between aging and loss of muscle strength has often been thought to be part of the natural aging process — just another one of those concessions accepted as an undesirable physical change as we age. Today, scientists know that loss of strength in the elderly is not an inevitable result of growing old, but rather the result of a sedentary lifestyle often associated with aging and retirement. Just as for the young, older people who take part in high-intensity exer- cise have the same ability to restore and increase the muscle strength lost to atrophy. The implications for the elderly are very positive. How much a person can do, regardless of age, depends on his or her general health, current level of fit- ness and degree of disability. The familiar recommendation to consult a physician before starting an exercise program holds true for everyone. ❑ 12/25 1998 Detroit Jewish News 115