Swimming is a remarkably effective workout @HarvardHealth






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By Heidi Godman, Managing Director

Everyone likes a bargain, and lap swimming is a good deal when it comes to exercise. Swimming is a remarkably effective workout because it combines three important types of exercise in one: aerobics, stretching, and strengthening. “Simply keeping yourself afloat activates the core muscles in your back and abdomen. And you have to move all of your muscles to swim,” says Leigh de Chaves, a physical therapist and clinical supervisor of rehabilitation services at Harvard-affiliated Brigham and Women’s Hospital. (She also swam competitively in college.)

Are you a good candidate for lap swimming?

Consider lap swimming if you’re generally healthy, you’re a good swimmer, and your doctor says it’s okay. It’s no problem if you’re not a fan of the crawl: “Any stroke is fine. The breast, side, and back strokes are often favored because a lot of people don’t like putting their face in the water, like you have to do with the crawl,” de Chaves says.

However, lap swimming might be not be doable if you have an underlying condition, such as heart disease or a seizure disorder, that puts you at risk for a life-threatening event in the water. You may also need to skip lap swimming if you’re not strong enough to climb in and out of the pool easily. And you should be careful if you have injuries to your shoulders or neck. Lap swimming may increase your pain.

Start your lap swimming routine slowly

A green light for a lap swimming routine doesn’t mean you should start with 20 laps. Ease into it. “Focus on the amount of time you spend swimming, at first. For example, swim for five or 10 minutes, a few times per week. Gradually increase the amount of time each week, and note how many laps you can do within that time. Eventually, set goals to increase your speed by doing more laps in your set time, so that you can measure your progress,” de Chaves explains.

A big payoff

Once you’re in the swim of things, you’ll notice lots of benefits to lap swimming. It’s easy on the joints, thanks to buoyancy in water, and it has a meditative quality that forces you to focus on your movement and breathing.

Lap swimming also

  • improves endurance and cardiovascular health
  • helps lower blood pressure
  • increases flexibility
  • helps you control your weight
  • boosts your balance
  • reduces fall risk
  • helps sharpen thinking
  • helps reduce stress.

Some dos and don’ts for lap swimming

De Chaves points out that it’s important to warm up your muscles before diving into a lap swimming workout. All it takes is a few minutes of gentle paddling, and then static stretches of your shoulder and leg muscles.

Some other dos and don’ts:

  • Do wear nonslip shoes or sandals when walking on the pool deck.
  • Don’t forget to apply sunscreen if you’re swimming outdoors.
  • Don’t forget to stay hydrated before and after a workout.
  • Don’t skip stretching your muscles after lap swimming. You’ll want to stay flexible so you can get back in the pool.

For the nonswimmers in the pool

If you’re not a lap swimmer, you can still benefit from aquatic exercises — exercising in the shallow end of a pool. You might take a class with a trainer who leads a group through a set of exercises with special water weights or flotation devices (like a pool noodle). Or you can simply try water walking; working against the resistance of the water is good for your muscles and bones.

“If you have balance problems, it’s a good idea to exercise with a friend who can assist you. I also recommend wearing a buoyancy belt around your waist to keep you upright,” de Chaves advises.

Look for aquatic exercise classes — such as strengthening or aerobics — at the local YMCA, a fitness center, or a community center.

About the Author

photo of Heidi Godman

Heidi Godman, Managing Director

Heidi Godman directs all news gathering for Harvard Health Publishing, and also directs the curation and production of HHP’s four monthly subscription publications (the Harvard Health Letter, Harvard Heart Letter, Harvard Men’s Health Watch, and Harvard Women’s Health … See Full Bio

Even a small apple a day may help keep diabetes away @HarvardHealth #stayhealthy 😀🤩


Harvard Health

@HarvardHealth

Even a small apple a day may help keep diabetes away: https://bit.ly/33FmI8w #HarvardHealth

News briefs

e522fb00-4fdb-4594-bdfa-fb72961f3da7A modest uptick in the amount of fruit and vegetables you eat can help ward off type 2 diabetes, according to a study published online July 8, 2020, by The BMJ. From a much larger study involving some 340,000 people from eight European countries, scientists selected 9,754 participants who were newly diagnosed with diabetes over a decade. Researchers compared the fruit and vegetable intakes of these people to those of about 13,000 participants who remained diabetes-free during the study period. Researchers also measured blood levels of seven key plant-derived nutrients, including vitamin C and brightly colored antioxidant pigments called carotenoids. People with the highest intakes of fruit and vegetables and the highest blood levels of the plant-derived nutrients were 25% to 50% less likely to get diabetes during the study period, compared with those who ate the least of these food groups or had the lowest nutrient levels. Even better, it didn’t take a whole lot of extra green, red, yellow, and orange on the plate to make a dent in diabetes risk. The equivalent of only two-thirds of a medium apple or just over one-third of a cup of mixed fruit each day offered protection.

Image: © RomoloTavani/Getty Images

Even a small apple a day may help keep diabetes away @HarvardHealth #stayhealthy 😀🤩


Harvard Health

@HarvardHealth

Even a small apple a day may help keep diabetes away: https://bit.ly/33FmI8w #HarvardHealth

News briefs

e522fb00-4fdb-4594-bdfa-fb72961f3da7A modest uptick in the amount of fruit and vegetables you eat can help ward off type 2 diabetes, according to a study published online July 8, 2020, by The BMJ. From a much larger study involving some 340,000 people from eight European countries, scientists selected 9,754 participants who were newly diagnosed with diabetes over a decade. Researchers compared the fruit and vegetable intakes of these people to those of about 13,000 participants who remained diabetes-free during the study period. Researchers also measured blood levels of seven key plant-derived nutrients, including vitamin C and brightly colored antioxidant pigments called carotenoids. People with the highest intakes of fruit and vegetables and the highest blood levels of the plant-derived nutrients were 25% to 50% less likely to get diabetes during the study period, compared with those who ate the least of these food groups or had the lowest nutrient levels. Even better, it didn’t take a whole lot of extra green, red, yellow, and orange on the plate to make a dent in diabetes risk. The equivalent of only two-thirds of a medium apple or just over one-third of a cup of mixed fruit each day offered protection.

Image: © RomoloTavani/Getty Images

A Strong Core is Your Best Guard Against Back Pain @ClevelandClinic

A group of adults are taking a fitness class together at the gym. They are working out on exercise mats and are holding a high plank.
A group of adults are taking a fitness class together at the gym. They are working out on exercise mats and are holding a high plank.

A physical therapist answers your questions

If you suffer from back pain, you’ve probably heard that strengthening your core can bring you some relief. But is this always true? And if so, how do you do it? We spoke with Cleveland Clinic physical therapist Patti Mariano, DPT, to find out.

Q: What is your core?

When most people think about the core of the body they think of the abdominal or six-pack area just below the ribs. While the abdominal muscles are an important part of the core, we consider other areas important, too.

Your core includes:

  • Front abdominal muscles — the rectus abdominis
  • Muscles along the side of your body — the internal and external obliques
  • A deep muscle that wraps around the front — the transverse abdominis
  • Muscles in your back that are located between your spine bones and run along your spine — the erector spinae and multifidi

Your core also includes the diaphragm and muscles of the pelvic floor. I also consider the gluteal muscles as core muscles.

Q: What is the relationship between core strength and back pain?

Theoretically, if your muscles around the low back are weak, your body will rely more on passive structures, including ligaments — the tissue that connects bone to bone — as well as the spinal bones or discs, which lie between the spinal bones, for stability, which can cause pain.

But some studies have shown that specific core exercises are not any more beneficial than general exercise for low back pain. What we know is that exercise in general can help, and focusing on core muscles may provide some additional benefit.

Q: What are some exercises for the core that can help with back pain?

Here are my top five:

  • Side plank — Sit on the floor with your right hand below your right shoulder and feet stacked. Lift your body, keeping your legs long, abdominals engaged and feet stacked. Hold. Repeat on the other side. You can modify this pose by dropping your bottom knee to the floor for extra support.
  • Plank — Kneel on all fours. Pull in your abdomen and step your feet behind you until your legs are straight. Keep your hands directly under your shoulders and your neck straight. Hold your abdomen and legs tight and avoid letting your lower back sag. Hold and breathe for 30 seconds. You can modify this pose by lowering your knees.
  • Bird dog — Kneel  on all fours. Reach one arm out in front of you, draw in your abdomen, and extend the opposite leg long behind you. Repeat on the other side.
  • Scissors — Lie on your back with your arms at your sides and legs pointed straight into the air above your hips. Press your lower back into the mat and tighten your abdomen. Lower your right leg until it’s a few inches from the floor. Raise your right leg up and begin lowering your left leg the same way. Continue switching right and left.
  • Upward dog — Lie face down with head slightly lifted and hands palm-down under your shoulders. Point your toes. Exhale, then press through your hands and the tops of your feet and raise your body and legs up until your arms are straight and your body and legs are off the ground. Keep your neck relaxed and long and thigh muscles tight as you hold and breathe.

For the plank exercises, start by holding them for 15 seconds to 30 seconds. For bird dog and scissors, try three sets of eight or 10 repetitions. For upward dog, do one set of 10 repetitions.

Q: Can you injure your back by trying to strengthen your core?

Any exercise performed incorrectly, whether it is core-strengthening or otherwise, has the potential to cause discomfort.

Twisting exercises or even incorrectly completing the exercises cited above can cause pain in the low back. But it’s highly unlikely that one repetition of an exercise will seriously harm your body, unless it’s an exercise using a very heavy weight.

The best way to keep your body safe is to listen to body cues such as pain during and immediately after an exercise, and the next day after exercising.

Q: When should you talk to a doctor about your back pain?

If any of the following is going on you should consult with your doctor:

  • Your pain has been going on for longer than a month, despite resting from activities that make it worse.
  • Your pain is getting worse.
  • Your pain wakes you from sleep.
  • Your pain is in your low back but also is going down one or both of your legs.
  • You notice that one leg is becoming weaker than the other.

Q: Where should you turn if you want help in creating a plan to address back pain?

Physical therapists train as musculoskeletal experts — they are the experts on muscles, bones and human movement. These professionals are the most qualified, aside from an orthopedic doctor, to assess back problems.

Since there are many factors that impact low back pain and many types of low back pain, it is a good idea to visit at least one time with a physical therapist for an evaluation and subsequent plan of care. This will give you an individually tailored plan with exercises that progress safely.

The idea of core strengthening, while beneficial, is just one piece of the low back pain puzzle.

https://health.clevelandclinic.org/2016/07/strong-core-best-guard-back-pain/