Encouraging manageable lifestyle changes for health and happiness, through research and personal experience.

Wednesday, October 6, 2010

Dieting WITHOUT Exercise

Everyone is always looking for that magic pill... ANYTHING to keep from having to exercise (gasp!). The evil, dreaded word... exercise. Whether due to lack of time, or lack of enjoyment, exercise is avoided by most -- like the plague. However, there are many health benefits AND WEIGHT LOSS BENEFITS that can only be achieved through exercise...
it. is. not. replaceable. with. a. pill. (or diet, or supplement, etc.)

Here are a few reasons why exercise is needed as part of your diet, whether your goal is general health or weight loss:
  • By including physical activity (strength training and/or cardio) you will increase your caloric deficit which will lead to greater weight loss.
  • Dieting without exercise will certainly lead to weight loss... unfortunately a large percentage of the weight lost could be coming from FAT FREE MASS and water weight - two things our body needs for proper function.
  • Your metabolism is highly dependent on the amount of fat free mass [FFM] (read: muscle) you have. If you lose your FFM (most likely by dieting without exercise) your metabolism will plummet and you will decrease the number of calories that your body naturally burns each day. This becomes even worse with yo-yo dieting (constant increases and decreases in your weight). This would mean that you would have to eat even fewer calories to maintain your current weight.
  • By adding strength training to your weight loss plan, you will guarantee that the majority of your weight loss is coming from FAT, and you will maintain or increase your FFM. This would mean that you would have a higher metabolism... you would get to eat more calories to maintain your current weight. Or as my professor Dr. Fluckey states, you would become a better-butter-burner.
  • It is true that with a combination of diet + exercise you may not see the numbers on the scale drop as much, or as fast. HOWEVER - as mentioned, that is because you would be retaining if not increasing your muscle mass. You would still be losing fat, losing inches, and needing to purchase smaller clothes. :)
  • Now the benefits for cardio: I believe we take our heart for granted. It is working 24/7 to deliver nutrients throughout your body! When we are stressed - it works overtime. When we eat fatty or fried foods - it works overtime. We need our hearts to be STRONG so that it will not fail us. Through cardiovascular exercise we strengthen our heart. It is able to pump stronger, which means that it does not have to pump as many times to deliver the same amount of blood. We become more efficient at utilizing more of the oxygen that travels through our system, resulting in less waste more productivity. It is better able to withstand stress, decreasing your risk of a cardiac event.
  • The good news is that the largest amount of health benefits are seen with low to moderate levels of physical activity... so no need to start training for a marathon just to increase your health. Aim for thirty minutes of continuous activity on most [5 out of 7] days of the week (walk the dog, chase your kid, enjoy life and the people you share it with!)
Finally, here is a list* of some of the concerns caused by a sedentary lifestyle: angina (chest pain), back pain, breast cancer, colon cancer, congestive heart failure, depression, gallstone disease, high blood triglycerides, high blood cholesterol, hypertension, insulin resistance, less cognitive function, low blood HDL, lower quality of life, obesity (and difficulty controlling weight), osteoporosis, pancreatic cancer, peripheral vascular disease, physical frailty, premature mortality, prostate cancer, sarcopenia (muscle loss), sleep apnea, stiff joints, stroke, type 2 diabetes.
*adapted from handouts from my Applied Exercise Physiology course.

I understand that it is appealing to select the option that leads to the fastest weight loss, but I encourage you to make healthy choices today that will lead to a healthier future as well. As always, I am here to help in any way I can.

Have a HEALTHY day!
~Fit Britt

2 comments:

  1. You tell them Fit Britt! Seems like I recall a lot of this information from PEAP lectures, Nutrition of Sport, and yes..."Supersize Me."

    ReplyDelete
  2. Thanks for the reminder! Healthy people are active people!!!

    ReplyDelete

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