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Written by David Payne
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"Carbohydrates" is Part 1 of my blog series that focuses on nutrition. In future blogs, I will cover fats, proteins, alcohols and other nutrition topics. Carbohydrates or carbs have been under a lot of scrutiny lately. Many diet programs and nutrition professionals have taken an extreme approach toward carbs. My intent is to give you a basic and simple understanding of carbs so you can make more informed decisions about what you eat. Depending upon who you ask, you will be told that carbohydrates should make up 50%-60% of your daily caloric intake (total consumption). Carbohydrates can be broken down in two basic categories: simply and complex. All carbohydrates contain approximately 3.75 calories per gram (rounded to 4). Simple carbohydrates are more quickly absorbed (digested) than complex carbohydrates. Complex carbohydrates are rich in fiber, vitamins and minerals and simple carbohydrates generally are not. Fiber is an indigestable (no caloric value) substance that is key to good health. Examples of foods high in simple carbohydrates are: table sugar, milk, candy, white bread, white potatoes, fruit juices and honey. A diet high in simple sugars contributes to elevated or rapid fluctuating blood glucose levels (blood sugar). Combined with a sedentary lifestyle and limited exercise, high consumption of simple sugars can lead to type II diabetes, stroke, weight gain and heart attack. Examples of foods high in complex carbohydrates are: whole grains, root vegetables, beans, lentils, yams and pasta. Complex carbohydrates contain fiber, vitamins and minerals that are key to good health and avoiding illness. To maintain optimal health, complex carbohydrates should make up the bulk of carbohydrates consumption (at least 75%). I recommend the "moderation versus depravation" approach. Do not give up the things that you love and crave. Simply take a common sense approach and control your portions.......dp |
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Written by David Payne
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An important component of starting a fitness or weight loss program is knowing your starting point. As a fitness professional, one of my fundamental responsibilities is to do a thorough screening of each client. Body fat is one of the many important bits of data I collect during my screening. In this blog entry I will give a brief explanation of three popular methods of measuring body fat. Hydrostatic weighing (water displacement), bio-electrical impedance and skin-fold (caliper) are currently the most popular methods of measuring body fat. Hydrostatic weighing is the most accurate method. However, the necessary equipment can fill a room. Simply put, it involves immersing the whole body in water and determining body fat by the amount of water displaced. Due to cost and equipment needs this method is limited a lab, medical or research facilities. The Skin-fold (caliper) method ranks second in accuracy. The equipment is minimal and very inexpensive. Some basic training is recommended but most people can perform this method after reading the instructions and a little practice. The margin for error of roughly 4% (plus/minus). The downside of this method is that it can be intrusive. It requires a gentle "pinch" of different areas of the body. Bio-electrical impedance is the fastest but least accurate method. This method uses a hand held device. There are numerous manufacturers and model that fall under this category. The basic science involved is sending a harmless, electronic signal through the body. The amount of time the signal takes to pass throughthe body goes into calculating body fat. The accuracy of this method varies greatly depending upon the equipment manufacturer, hydration levels, sex, body type. I find this method very inaccurate for people who are either very lean or very obese. |
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Written by David Payne
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The internet offers a wealth of tools that aid in getting fit, eating well and improving your lifestyle. My personal favorite is fitnessjournal.com. I was so impressed by this site that I use it to track progress, design workouts and track eating habits for my clients. For a free month membership click register (upper right of this page) and enter "myfox" in the box titled "Discount Code". Here is a list of my top 3 online fitness/wellness sites: 1) www.fitnessjournal.com My personal favorite. No annoying ads. You can use it to track and record workouts, find and post recipes, form a workout club/group and much, much more. 2) www.east.doortodoororganics.com This site delivers fresh, locally grown, organic fruits and vegetables to your doorstep. Prices are competitive with store bought organic produce. 3) www.gymticket.com Great site to find a gym or fitness facility near you. Offers free passes to many facilities. |
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