“Energetic swimming burns up to 30 percent more calories than running and about 40 percent more calories than bike riding,” says Dr. Charnoff, who also sees patients at a Hospital for Special Surgery (HSS) location in midtown Manhattan. “Swimming is also low impact, so it’s easy on the joints and beneficial for people who have problems such as arthritis.”

Federal exercise guidelines encourage adults to engage in 150 minutes of moderate aerobic activity or 75 minutes of vigorous activity each week, and swimming fits the bill. Swimming laps, even for 10 minutes at a time, counts as vigorous exercise. “Even small amounts of physical activity can improve one’s health, and exercising for 10 minutes or so several times a day adds up,” Dr. Charnoff says. “For someone who isn’t a swimmer, a water aerobics class is not only fun, but a good way to get a moderate workout.”

Tips to Get the Most Out of Swimming

For people who have been inactive, Dr. Charnoff cautions against diving into swimming − or any other sport − too quickly to avoid injury. “Swimmer’s shoulder” is the most common condition he sees, and it’s caused by overuse – doing too much, too soon. “It can happen if your shoulder muscles, which do a lot of the work when someone swims, have not been built up enough before swimming,” he says.

To decrease the risk of an injury, he recommends listening to your body. One should never try to swim when fatigued. If someone starts feeling that their muscles are getting tired, they should take a break. He also recommends engaging in exercises that strengthen the shoulders and upper body outside of swimming.

Dr. Charnoff has additional recommendations to get the most out of swimming:

• Gradually build up strength and stamina if you want to swim for longer distances and for longer periods of time.

• Before swimming, warm up your muscles by moving your arms and legs. This can be done outside or inside the pool. Walk around, do circles with your arms or so some light stretching.

• Focus on maintaining good form. Poor technique can lead to problems such as neck strain, which happens when people come up for air and overextend their neck. “Swimmer’s knee” is pain caused by extending one’s knee excessively or with a lot of force.

• Know your limitations and prior injuries, and be careful not to overdo it.
• Consider lessons if you would like to improve your form or safety in the water.

What to do if You Get a Muscle Cramp

Muscle cramps are common and can be dangerous in deep water, as a cramp can limit the ability to swim. “Anyone who develops a cramp should make their way carefully and safely to the side of the pool,” Dr. Charnoff advises. “They should stop swimming, get out of the water and not go back in until the cramp has gone away completely.”

He says stretching and massaging the cramp could help. If it is not getting better, he recommends applying a warm compress or submerging the limb in warm water. Since cramps are often caused by dehydration or an electrolyte imbalance, he advises swimmers to stay hydrated.

Safety First

When Dr. Charnoff did his medical residency in Miami, he saw his fair share of serious injuries, and the most common involved hitting one’s head against a sandbar after diving into the ocean. “It’s a potentially devastating injury. Some patients became paralyzed,” he recalls. “People should only dive off a diving board or where a sign indicates that it’s safe. Never dive into a river, a lake or the ocean.”

For safety at the beach, Dr. Charnoff says it’s imperative to obey signs and avoid areas with red flags or rip currents. In open water, he recommends people swim with a partner and stay close to the beach. For those who venture farther into the ocean, he recommends making sure you can see the lifeguard and being mindful of your energy level so you can safely swim back to shore. “The force of the ocean should never be taken lightly,” he says. “High tide and rip currents can drag you one to two feet per second and even overpower great swimmers.”

To keep children safe both at the beach and poolside, Dr. Charnoff says they must be watched at all times. He recommends that anyone supervising children know how to swim and learn CPR. “Children should be taught that they should never go to the pool without supervision, they should never run near a pool, and long hair should be tied up to avoid getting tangled in the drain,” he says. “Even if children know how to swim, it doesn’t guarantee their safety, as they may overestimate their own strength or stamina.”

About HSS Long Island

HSS Long Island provides world-class orthopedic care in a convenient location for area residents. Located in the Omni Building in Uniondale, off Hempstead Turnpike via the Meadowbrook Parkway, patients can access top HSS orthopedic and sports medicine specialists for diagnostic exams, pre- and postoperative appointments, or ongoing treatment needs. HSS Long Island offers care by more than two dozen physicians specializing in adult reconstruction and joint replacement, foot and ankle, hand & upper extremity, pediatric orthopedics, physiatry, spine, and sports medicine. Radiology and imaging services are available onsite, including MRI. www.hss.edu/longisland.