Archive for the ‘Nutrition’ Category

Sports Nutrition during Marathon Taper: Two Weeks to Race Day

Friday, June 18th, 2010

Over the past several months you’ve been diligently training and building up your mileage week by week. You’ve improved your cardiovascular fitness, your muscle strength and endurance, in the process you’ve depleted your muscle glycogen stores and caused micro-damage to muscle fibers and connective tissue. Race day is fast approaching and on this day, you will likely demand more of your body on that day than you did on any of your training runs. Therefore, these final two weeks of “tapering” are vital to how you will perform on race day. You are reducing your weekly mileage now, in order to give your body more time to recover, replenish and heal. It is not uncommon to feel as though you are losing fitness and/or gaining weight – do not worry it is only an illusion. Your fitness level will be maintain through the taper training and any weight gain you may experience if not illusionary will be a result of your body filling up the glycogen stores (the carbohydrates stored in your muscles along with water do weigh something). Now is not the time to cut back on calories, nor is it the time to over consume.  Smart fueling now through race day will greatly increase the likelihood of a fabulous race experience.

The following are some guidelines for proper fueling during “Taper”:

Low levels of muscle glycogen will result in early energy depletion and fatigue. In order to keep glycogen stores full for race day your daily intake should be as follows:

Daily Carbohydrate Intake = 60-70% of total caloric intake

Or use the following calculations:

o 6-7gm/kg body weight for 1 hour training daily
o 8 gm/kg for 2 hr training daily
o 10 gm/kg for 3hr training daily
o 12-13 gm/kg for 4+ hr training daily

Carbohydrates are your body’s favorite energy source and the primary fuels source during exercise.

Recommended Carbohydrate Rich Foods: whole grain cereals, whole grain breads, whole grain pasta, potatoes, sweet potatoes, corn, peas, winter squash, oats, barley, fresh fruits, fresh vegetables

Daily Protein Intake = 12-15% of total caloric intake

Protein requirement can also be calculate using 1.3 x kg body weight (there are 2.2 lbs per kg)

Lean Animal Protein &/or Plant-based proteins are important for muscle repair and growth, regular physical training tends to reduce muscle protein breakdown and protein loss from the body.

Protein Rich Foods: lean beef, chicken, fish/seafood, pork, beans and legumes such as lentils and split peas, tofu, tempeh, eggs, low fat cottage cheese, low fat cheese, nonfat/low fat milk and yogurt.

Daily Fat Intake = 20-25% of total caloric intake

In general, no less than 15% of your daily caloric intake should come from fat. Women of reproductive age need at least 20% of total calories to come from fat. Don’t exceed 25% of your total calories from fat, as the body prefers muscle glycogen for fuel over fat, also fat takes longer to digest than carbohydrates. Note: much of your fat intake will come through the meat, dairy and nut-based products you eat.

Healthiest Fat Sources: polyunsaturated and monounsaturated fats and omega-3 fatty acids. Olive oil, plant-based oil, coconut oil, avocados, olives, raw nuts & seeds, all-natural peanut butter, almond butter, cashew butter, flax and fish oils (i.e. the fat in salmon).

Foods to Limit or Avoid During Taper:

Limit high-fat protein foods like hamburgers, fried chicken, extra cheese because these foods take longer to empty from your stomach and can contribute to sluggishness. Limit sugary sweets like candy, cookies, candy bars, cakes, ice cream, candy bars, doughnuts, pastries, etc. Limit overall junky foods like French fries, onion rings, potato chips, most crackers, all fried foods, and alcohol.

The final two days before the race your intake should shift to:

  • 75-80% of calories from Carbohydrates
  • 10% of calories from Protein
  • 10-15% of calories from Fat

To Your Success,

Melissa Guthrie
Triumph Training
Nutrition Coach/Fitness Trainer
mmguthrie@hotmail.com
www.gettingfitwithmelissa.com
Eat Right. Train Smart. Live Well

Melissa Guthrie holds a BSc in Exercise Physiology and a BSc in Nutritional Science from BYU. She received her certification as fitness trainer and group fitness instructor through the American Council on Exercise (ACE) and has been instructing fitness classes and teaching nutrition since 1995. She is a New Leaf certified Metabolic Technician.

Are You Eating Right?

Wednesday, October 21st, 2009

Want to improve performance? Want more energy? Want better health?

Want to feel better? Want to lose weight? Want to think clearer? Want to function at your best?

All these may be possible with eating right for your nutritional (metabolic) type. Everybody is unique and different in how they process foods. We’ll use athletes as an example. Many athletes load up on carbohydrates for races and many have great energy; therefore, great races, while many others feel slow, sluggish, bloated or lethargic after eating similar foods. Foods cause different responses in different people. Consider the group of 3-4 ladies who try to lose weight together. They work out together and eat the same diets, but only one or two lose weight while the others maintain or even gain weight. I hear it often in my practice. These are only a couple of reasons to eat right for your nutritional (metabolic) type. The Atkins, South Beach, Zone, Alkaline/ Acid and Blood Type Diets all work FOR SOME PEOPLE. The “Eat Right For Your Metabolic Type” nutritional analysis is specific to each person. It determines what foods would be the best for you. It takes into consideration your physical characteristics, your psychological traits and your dietary responses, to determine how you break down foods and how you utilize food for energy. Along with the typing report we do blood testing with the MRT (Mediator Release Test) to determine food sensitivities that cause inflammation in the body. Everybody breaks down fats, proteins and carbohydrates at different rates and utilizes them differently to produce ATP (the body’s energy source). The metabolic typing analysis will determine what foods are right for you and in what ratios to eat them in. Food is made to give the body energy. Therefore, when we eat, we should have great energy…if we eat the right foods for our bodies. Metabolism, by definition, refers to all the physical and chemical processes in the body that create and use energy to sustain life, such as:

  • Digesting food and nutrients
  • Eliminating waste through urine and feces
  • Breathing
  • Circulating blood
  • Controlling body temperature
  • Contracting muscles
  • Functioning of the brain and nerves

If our metabolism is working at its optimum, then we should function at our optimum. It just makes sense. Metabolic Typing explains how someone can eat organic foods, take the best supplements money can buy, exercise regularly, get enough sleep and still not feel well. If you eat the right foods and take the right supplements for your metabolic type you can get a great start on your way to optimal health and performance.

Loth Sports ChiropracticDr. Loth is a certified Metabolic Typing Advisor, and Sports Chiropractor
(602) 549-2750
Jason@drloth.com
WWW.DRLOTH.COM