Medical

 

Fitness Calculators

 

 Reported in 2007, a new study confirms that for most women, 6 or more hours of strenuous recreational exercise each week can reduce the risk of invasive breast cancer, according to the findings on http://www.breastcancer.org    

It is important to note however, that women with a family history of breast cancer did not have reduced risk.  All other women in the study did have reduced risks.

The study conducted interviewed 7,630 women who were free of breast cancer, 1,689 with very early-stage or in-situ disease, and 6,391 with invasive breast cancer. All of the women ranged in age from 20 to 69.

While there was no link between physical activity and in-situ breast cancer risk, women who reported more than 6 hours of strenuous recreational exercise each week had a 23 percent reduced risk of developing invasive breast cancer compared to women who never exercised.

The reduction in risk was seen in women who exercised early in life, after menopause, or in the recent past.

It appears that exercise may prevent invasive breast cancer by stopping in-situ disease from progressing.

The researchers found no link between physical activity on the job and reduced breast cancer risk.

SOURCE: Cancer Epidemiology Biomarkers & Prevention, February 2007.

EXERCISE BENEFITS FOR BREAST CANCER SURVIVORS

Researchers at The University of Texas Cancer Center have found that exercise decreases pain, helps breast cancer survivors feel healthier, and increases participation in daily activities.

In this new study, there were approximately 60 breast cancer survivors, randomly placed in a lifestyle intervention group or a standard care control group.
The study took place over six months and 21-sessions. Researchers taught participants to incorporate short periods of moderate exercise into their daily routines, which included 30 minutes of physical exercise at least five days per week.

According to lead researcher Karen Basen-Engquist, Ph.D., the participants were informed that they should still be able to talk while exercising at a moderate level, but they should not be able to sing during the activity. Lifestyle intervention participants met weekly for four months and then semi-weekly for two months to learn cognitive and behavioral skills to support effective behavioral change.

Study leaders emphasized that physical activity need not be an organized, lengthy endeavor, but rather a lifestyle activity that could include vacuuming, brisk walking or climbing stairs rather than taking the elevator.

The study examined barriers to increasing physical activity, including time restraints, other commitments, fatigue, pain or muscle problems, incontinence, hot flashes and premature menopause due to chemotherapy.

The study concluded that exercise improved participants' ability to perform a variety of physical tasks, increased self-reports of feeling healthy and decreased pain and the degree to which their activities were limited by physical health problems.

Beware of Waist and Hip Measurements

A fitness assessment is performed by a professional trainer before you start your exercise program. One of the critical measurements taken is your Waist-to-Hip Ratio (waist measurement divided by hip measurement). This measurement is important because there is a correlation between chronic diseases and abdominal fat. A ratio above .80 for females and above .95 for males could put a person at risk for a number of diseases, including cancer. For example, if your waist is 31 inches and your hips are 41 inches, your Waist-to-Hip Ratio would be .76. Some people who consider themselves to be "skinny" could really be "skinny-fat", which is a skinny person with too much body fat. A "skinny-fat" person could have an unfavorable Waist-to-Hip Ratio. The lesson? Everyone needs to know their Waist-to-Hip Ratio.
 
 
Depression, Premenstrual Syndrome, Pregnancy & Exercise

 

This information is based on a WebMD Medical Reference:

What are the Benefits of Exercise?

Research has proven that exercise is an effective, but often underused, treatment for mild to moderate depression.

Regular exercise has been proven to:

  • Reduce stress, anxiety, and depression
  • Boost self-esteem
  • Improve sleep

Exercise also has these health benefits:

  • Strengthens the heart
  • Makes the body better able to use oxygen
  • Builds energy levels
  • Lowers blood pressure
  • Improves muscle tone and strength
  • Strengthens and builds bones
  • Helps reduce body fat
  • Makes you look fit and healthy

It appears that any form of exercise can help depression.

It is always a good idea to receive MEDICAL CLEARANCE from your doctor before starting an exercise program, especially if you have been inactive or have a history of medical problems.  In fact, part of a FREE FITNESS ASSESSMENT determines whether you need medical clearance. 

 How Much Exercise and How Often?

First, determine your goals.  Do you want weight loss, muscle strength, improved flexibility, etc.  A program designed by a professional trainer will give you all of these benefits and more.  Next, find an exercise that you enjoy.  Biking, running, treadmill, rec sports.  Anything will do.  Finally, determine whether you want to go it alone, get a workout partner or do group exercise.  Many people do a combination of all three.   

To get the most benefit from your exercise program, you should exercise at least 20 to 30 minutes, three times a week. Current studies suggest that four or five times a week is best. If you are a beginner, exercise for 20 minutes and build up to 30 minutes.

EXERCISE AND PREMENSTRUAL SYNDROME

This information is based on research sponsored by Blue Cross/Blue Shield of Massachusetts:

How effective is exercise in relieving PMS symptoms?

A few preliminary studies have found that regular exercise can ease some of the pain and stress that you may have each month during the week or two leading up to your period. In one trial, researchers at the University of British Columbia in Vancouver had eight previously sedentary women work up to running 12 miles per week over six months. At the end of the study, the runners reported less breast tenderness, bloating, and moodiness before their periods. Six normally active women who did not increase their level of exercise felt no changes in their usual premenstrual symptoms.

Another study found that women who exercised regularly felt less pain and depression before their periods than nonexercisers. Unfortunately, no studies have looked at how exercise might help women with severe premenstrual syndrome, a clinical disorder in which women find themselves plagued each month by pain, headache, cramps, depression, and fatigue, among other symptoms.

How does it help?

Exercise is a great stress-buster. It also boosts your metabolism and improves your circulation. When you get your blood moving, it carries oxygen and nutrients to the cells more efficiently, so you feel less sluggish. But don't go overboard; extremely vigorous workouts (such as doing step aerobics for two hours a day) may exacerbate rather than relieve some symptoms.

Aerobic activity can also produce brain chemicals known as endorphins that boost your mood and give you a sense of control and well-being, which could help ease the anxiety, depression, and mood swings you may experience each month. Some researchers even think endorphins in the bloodstream can stabilize your blood sugar and cut your cravings for sweets.

What kind of exercise works best?

Moderate aerobic activities like walking, jogging, biking, and swimming for about 30 minutes five times a week may be your best bet. One three-month study of 23 women found that those who participated in an aerobic exercise program saw more improvement in their premenstrual symptoms, particularly depression, than those who did strength training. Yoga can also be helpful. Its combination of gentle stretching, breathing techniques, and meditation can help ease muscle tension, focus your mind, and decrease moodiness.

Pregnancy Exercise Issues

  
The American College of Sports Medicine endorses the health benefits of activity for pregnant women and their fetuses. The published report is based on findings from a national panel of scientific and clinical experts who evaluated numerous published studies.  The report is based on the most current research, which clearly suggests long-term benefits from physical activity for both the mother and her baby.

It is the consensus of the expert panel that exercise during pregnancy and the postpartum period:

Reduces Risk of Preeclampsia
This condition is marked by high blood pressure, proteinuria (protein in urine) and edema in the mother, which makes her more likely to experience metabolic disturbances during this time similar to those with coronary heart disease and chronic hypertension.

Treats or Prevents Gestational Diabetes
Gestational diabetes is a form of diabetes during pregnancy, related to a shift in hormones causing insulin resistance and high blood glucose. Exercise is considered an adjunctive therapy for this condition.

Helps Manage or Alleviate Pregnancy-Related Musculoskeletal Issues
Exercise and previous physical fitness can help manage low-back pain, pregnancy-related urinary incontinence, abdominal muscle disturbances and joint and muscle injuries.

Links Breastfeeding and Postpartum Weight Loss
Weight loss can occur through moderate exercise and calorie restriction without negatively affecting breast milk production and infant growth.

Positively Impacts Mood and Mental Health
Many women experience negative mood symptoms during pregnancy and the postpartum period. Exercise has been shown to improve mood, increase vigor, reduce fatigue, stress and anxiety, decrease symptoms of negative mood and depression, and improve self-concept.

RESISTANCE AND CARDIO TRAINING DURING PREGNANCY

While maintaining health and fitness during pregnancy is important, the mother should wait until after the pregnancy to make significant improvements in fitness levels. 

Weight Gain During Pregnancy

The amount of weight a woman should gain during her pregnancy depends on her weight prior to becoming pregnant. Excess weight gain and failure to lose this weight six months postpartum are predictors of long-term obesity.

Weight Gain Norms during Pregnancy

  • Normal weight prior to pregnancy: 25-32 lbs.
  • Overweight prior to pregnancy: 15 lbs.
  • Underweight prior to pregnancy: 40 lbs.

Exercise Risks For Pregnant Women

Physician approval for exercise is always required for pregnant women.   Risks for the mother include hypoglycemia (low blood sugar), fatigue, and muscoskeletal injuries. The baby is at risk for hyperthermia (overheating) and decreased uterine blood flow. The mother should stop exercising before fatigue sets in and follow the recommended guidelines for exercise mode, frequency, intensity, and duration. Should any of the following warning signs occur, exercise should be discontinued and the mother should consult her physician.

Exercise Warning Signs during Pregnancy

Vaginal Bleeding    

Muscle Weakness

Shortness of breath prior to exercise

Calf pain or swelling

Dizziness

Preterm Labor

Headache

Decreased Fetal Movement

Chest Pain

Amniotic Fluid Leakage

Some pregnant women should not exercise. Women that have cardiac disease or restrictive lung disease may not be able to exercise. Pregnancy-induced hypertension, an incompetent cervix, intrauterine growth retardation, second and third trimester bleeding, and premature rupture of membranes are conditions that will make exercise inappropriate.

Exercise Modes

Walking, stationary cycling, and swimming are popular exercise modes for pregnant women. Women who were participating in resistance training prior to pregnancy should continue to do so. Light to moderate weights with high repetitions should be used (e.g.- 12-15 reps) to maintain muscle function while preventing excessive stress on ligaments and joints. It is recommended that women who were not engaging in resistance training prior to pregnancy wait until postpartum to begin.

Activities such as racquet sports, basketball, and softball should be avoided because they can increase the strain on muscles, tendons, and ligaments, and may also pose a risk to the baby (e.g.- ball hitting the abdomen). For many of the same reasons, all high-impact activities should be avoided. Stretching should be gentle and static to maintain joint flexibility.

In the second trimester, the supine position (on your back) should be avoided at this time. During the third trimester, aerobic exercise may need to be limited to stationary equipment, walking, and swimming due to alterations in the center of gravity and balance. Limiting resistance training to selectorized machine use is recommended once center of gravity and balance has been altered.  

Exercise Frequency

Exercising 3-4 times per week is recommended for pregnant women. Recent research indicates that women who exercise five or more times per week have substantially increased odds for a low birth weight baby. Pregnant women who exercised two or fewer times per week have modestly increased odds for a low birth weight baby.

Exercise Intensity

Past guidelines called for 140 BPM as the maximum exercise heart rate during pregnancy. While this is a good general guide for the average age of a pregnant woman performing moderate intensity exercise, it does have some limitations. It doesn’t take into consideration those who have been exercising prior to becoming pregnant. A pregnant woman who was exercising prior to being pregnant would likely tolerate a higher exercise intensity better than someone who was previously sedentary. It also doesn’t take into consideration the large variations in age. There would be a significant difference in exercise heart rate between a 19-year-old pregnant girl and a 40-year-old pregnant woman. The primary concern with exercise intensity during pregnancy is blood flow to the baby. With increasing exercise intensity, increased blood flow to the working muscles could decrease blood flow to the baby and in turn, oxygen levels. An appropriate guide to use is a fairly light to somewhat hard rate of perceived exertion. The mother should be able to talk while exercising (known as the talk test).

Exercise Duration

The standard recommended exercise duration during pregnancy is 30-40 minutes. However, on some days, fatigue may occur earlier than others. The duration of the session should be determined by how the mother feels that day.

Nutrition

At least 300 additional calories per day are required for exercise during pregnancy to supply the mother will additional energy and avoid compromising the growth of the baby. A carbohydrate-rich pre-exercise meal should be consumed and fluids should be consumed before, during, and after exercise.

Conclusion

Exercise during pregnancy has many benefits. Even women who were previously inactive can safely engage in an exercise program once cleared by their physician. Following these recommended guidelines will help maintain health and fitness while minimizing exercise risks associated with pregnancy.

POST-PREGNANCY EXERCISE

When beginning an exercise routine after your pregnancy, it is extremely important that you take it very slow. Your body is still recovering from the ordeal it just went through. Do not start exercising again until you feel steady again. Many women wait until after their six week postpartum checkup to start exercising again, but if you are feeling ready before then, you may be able to start sooner. Be sure to talk it over with your health care provider before starting any exercise routine. Here are a few very easy post pregnancy exercises.

Pelvic Floor Strengthener

  1. Lie down on your back with knees bent and feet flat on the floor
  2. Tighten the muscles of your vagina as if you were trying to stop the flow of urine when going to the bathroom
  3. Hold for a count of 5, then release
This exercise is great for improving circulation in your pelvic region, as well as keeping your vaginal canal in good shape.

Head and Shoulder Raises

  1. Lie down on your back with knees bent and hands behind your head
  2. Flatten the small of your back against the floor by tightening your abdominal muscles. Take a breath and as you exhale, slowly raise your head and shoulders off the ground. Be sure not to pull on your neck with you hands. Lower yourself slowly and repeat the sequence eight to ten times, being sure to keep the small of your back pressed against the ground the whole time.
Pelvic Tilt
  1. Lie down on your back with knees bent and feet flat on the floor.
  2. Take a breath in and allow your abdomen to expand.
  3. As you exhale, lift your tailbone toward your navel, while keeping your hips on the floor.
  4. At the top of the tilt, tighten and release your buttocks. Repeat these steps eight to ten times.

The most important thing to remember when getting back into an exercise routine is to take it slowly. These gentle exercises will help get you started. You may want to include some light cardiovascular exercise, like walking, swimming, or light weight training.

IF YOU ENJOY WORKING OUT AT HOME BECAUSE OF THE CONVENIENCE AND/OR COST SAVINGS, THEN I CAN HELP YOU.  YOU DON'T NEED ANY EQUIPMENT.  I PROVIDE EQUIPMENT AT EACH SESSION.  I TRAIN MOST CLIENTS AT THEIR HOMES, A PLACE THEY DESIGNATE OR ONLINE.  CALL 512-289-8879, OR EMAIL TO SCHEDULE YOUR FREE FITNESS AND NUTRITION ASSESSMENT!

 

Centers For Disease Control and Prevention, 2003 Stats

All Races, Females Percent*
 1. Heart disease 28.0
 2. Cancer 21.6
 3. Stroke 7.7
 4. Chronic lower respiratory diseases 5.3
 5. Alzheimer's disease 3.6
 6. Diabetes 3.1
 7. Unintentional injuries 3.1
 8. Influenza and pneumonia 2.9
 9. Kidney disease 1.8
10. Septicemia 1.5

White Females, All Ages Percent*
 1. Heart disease 28.1
 2. Cancer 21.6
 3. Stroke 7.7
 4. Chronic lower respiratory diseases 5.7
 5. Alzheimer's disease 3.9
 6. Unintentional injuries 3.1
 7. Influenza and pneumonia 3.0
 8. Diabetes 2.8
 9. Kidney disease 1.6
10. Septicemia 1.4

Black Females, All Ages Percent*
 1. Heart disease 27.9
 2. Cancer 21.1
 3. Stroke 7.6
 4. Diabetes 5.2
 5. Kidney disease 2.9
 6. Unintentional injuries 2.8
 7. Chronic lower respiratory diseases 2.4
 8. Septicemia 2.4
 9. Influenza and pneumonia 2.1
10. Alzheimer's disease 1.8

American Indian or Alaska Native Females, All Ages Percent*
 1. Heart disease 19.6
 2. Cancer 17.6
 3. Unintentional injuries 8.8
 4. Diabetes 6.9
 5. Stroke 5.1
 6. Chronic liver disease 4.2
 7. Chronic lower respiratory diseases 4.0
 8. Influenza and pneumonia 3.4
 9. Septicemia 2.3
10. Kidney disease 2.1

Asian or Pacific Islander Females, All Ages Percent*
 1. Cancer 27.1
 2. Heart disease 24.4
 3. Stroke 10.3
 4. Unintentional injuries 4.1
 5. Diabetes 3.9
 6. Influenza and pneumonia 3.0
 7. Chronic lower respiratory diseases 2.3
 8. Kidney disease 1.8
 9. Alzheimer's disease 1.5
10. Hypertension 1.4

Hispanic Females, All Ages Percent*
 1. Heart disease 24.9
 2. Cancer 21.1
 3. Stroke 6.7
 4. Diabetes 5.9
 5. Unintentional injuries 4.7
 6. Influenza and pneumonia 2.8
 7. Chronic lower respiratory diseases 2.7
 8. Alzheimer's disease 2.2
 9. Perinatal conditions 2.2
10. Kidney disease 2.0

AS YOU CAN SEE, CANCER, HEART DISEASE, STROKE AND DIABETES ARE COMMON TO EACH GROUP.  A REGULAR EXERCISE PROGRAM WILL LOWER YOUR HEALTH RISKS IN THESE AREAS.  CALL ME AT 512-289-8879 OR EMAIL TODAY TO SCHEDULE YOUR FREE FITNESS AND NUTRITION ASSESSMENT AND START YOUR EXERCISE PROGRAM!

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