Denver, aka the Mile High City, is located 5280 feet above sea level. Here are some altitude training tips to get you ready to take on Transamerica Rock ‘n’ Roll Denver Half Marathon.


To make the most of altitude training, it’s critical that your body be as prepared as possible for the metabolic demands and physiological changes that will occur.

1. Take an iron supplement.

“Red blood cell mass and oxygen demands increase at higher altitudes. As such, you need to supplement your diet with iron before you arrive at altitude. The guidelines for Olympic athletes training at altitude is to supplement with 120 to 130 mg of elemental iron per day, divided into 2 doses, taken with vitamin C. You should consult with your doctor to get an iron test if you’re thinking about iron supplementation.”

2. Take an antioxidant. 

“While most runners understand training at altitude will be made more difficult because of the thin air, many don’t realize that recovery from hard running at altitude is slowed because of an increased production of free radicals in the muscles. To combat the effects of these free radicals, begin taking an antioxidant such as a multivitamin or Vitamin E before you head to the mountains and ward off as much free radical damage as you can.”

3. Supplement with branch chain amino acids.

“Basal metabolic rate (BMR) increases at altitude, especially in the first couple of days, which means you’re actually burning more calories for the same amount of exercise. Meanwhile, appetite is suppressed by hypoxia, causing you to eat less because you’re not hungry. While this may sound great for those runners trying to lose weight, it’s detrimental to performance, especially when your body is already stressed. To minimize reduction in body mass and loss of muscle, make sure you’re eating enough and try supplementing with branched-chain amino acids such as leucine, isoleucine, and valine.”


1.Don’t be afraid to run slow. 

“When above 5,000 feet, you should (and may be forced to) slow your easy running pace. Don’t try to fight it or force your normal running pace. You’ll often find that when running at altitude even the smallest hill will send you gasping for breath. Don’t be concerned, this is a common experience. Take any hills very slow and don’t be afraid to walk at the top to catch your breath so your breathing and heart rate can return to normal.”

2. Change your training. 

Take more rest between intervals

“When training at altitude, try and increase exercise-recovery ratios as much as possible. Recent research indicates that a 1:2 recovery ratio is optimal. For example, if you run hard for 3 minutes, take 6 minutes recovery.”

Slow your tempo runs down.

“Similar to running easy, running at threshold pace at altitude is extremely difficult and you will have to slow your pace considerably. Each athlete responds to altitude differently and your exact elevation will impact your pace. Use your breathing or a heart-rate monitor to measure effort level and don’t be concerned about specific times.”

3. Get more sleep. 

“Recovering and sleeping at altitude are made more difficult by free radical damage and the thin air. Sleep specialists have found athletes who train at altitude imperceptibly wake almost five times as often as they do at sea level during the first three weeks.  So, give yourself some extra shut eye.”

4. Drink extra fluids. 

“Fluid intake is vital when training at altitude. The thin air makes your breathing more shallow and frequent, which creates greater fluid loss through the respiratory system. In addition, altitude locations are very dry with low humidity. Carry water with you at all times and aim to drink about twice as much as you normally do at sea level.”

While you may not be an Olympic athlete who intends to utilize altitude training as part of a strict performance enhancing protocol, make good use of your time at altitude – planned or not.

Now you are set to rock race day and conquer the Mile High Challenge!

The full article can be found on Competitor.