Filed under: Cold
Most people associate dehydration with hot weather. Here’s news: You can experience dehydration in cold weather too. Being active outside in cold weather for less than two hours doesn’t usually present a problem. But for long-term exposure such as a field deployment, which can last anywhere from a few days to several weeks, the combination of heavy clothing and high-intensity exercise can lead to increased sweating and the possibility of dehydration. You may not feel as thirsty in cold weather as in other climates, because your body chemistry impairs your brain’s ability to tell you when to hydrate. Cold weather also has the effect of moving body fluids from your extremities to your core, causing increased urine output and adding to dehydration.
The bottom line: When in cold climates, don’t rely on thirst to be an indicator of hydration. Drink often, before you’re thirsty. Water and sports drinks are the best fluids to maintain hydration, even in cold weather conditions. When you’re in a situation where you need to monitor your hydration level keep in mind that carbonated and caffeinated beverages (including energy drinks) have a dehydrating effect since they increase urine flow. Also avoid alcohol consumption in cold weather. It gives a temporary feeling of warmth but interferes with the body’s ability to retain heat since shivering, the normal response to maintain body temperature, is delayed.
Sometimes it’s not easy to hydrate as much as you need, especially when on a mission. One way to measure your hydration status is to monitor the color and volume of your urine. (Snow makes a good test spot.) Dark, scanty urine is an indication of dehydration. Ideally, urine should be light yellow to clear. Enjoy getting some exercise in the cold weather, but be sure to keep your water bottle in tow.
Fort Drum recently opened a “Mountain Functional Fitness Facility.” In keeping with the goal of overall combat fitness, the facility’s purpose is to help soldiers become strong and agile for combat while deployed in both cold conditions and rough terrain such as rugged mountainous environments.
“Functional fitness” focuses on developing specific muscle movements and overall athleticism rather than building up specific muscles. This new center features state-of-the-art equipment and the mission of helping soldiers become conditioned to operate in realistic situations where both strength and agility training are mission critical. Check out this report in Business Insider for additional photos.
As winter approaches here in the northern hemisphere, staying active requires more planning to be safe and comfortable. Here are some tips for exercising in cold weather conditions:
- Since medical conditions such as Raynaud’s, cardiovascular disease, and asthma can be exacerbated by climate changes, be sure to check with your doctor before exercising in the cold.
- Check out these tips from the Mayo Clinic, which include dressing in layers that include a synthetic material such as polyester or polypropylene close to the skin (avoid cotton, since it soaks up the sweat!) and paying close attention to your extremities, especially your fingers and toes, since the circulation to these areas decreases in cold weather.
- The American College of Sports Medicine also has a Position Stand on preventing cold-weather injuries during exercise that emphasizes being able to recognize the signs and symptoms of hypothermia and frostbite, as well as monitoring wind-chill temperature. The signs and symptoms of hypothermia can vary, but in general watch for feeling cold, shivering, apathy, and social withdrawal. Also watch for the early stages of frostbite (which precede the deep frostbite that can cause major tissue damage) in which you’ll feel burning, numbness, tingling, itching, or cold sensations.
If you pay attention to these guidelines, you can continue to stay fit all winter long.
If you exercise in the cold, consider these tips from the American Council of Exercise (ACE; Exercising in the Cold) to stay safe. Check how cold it is before you go out, and do not exercise if the conditions are too extreme. Be sure to dress warmly (keep your head, hands, and feet warm) and dress in layers that can trap insulating dry air near your skin. In addition, avoid blowing air into your gloves and mittens because it will add moisture, which will cause your hands to be colder. For more detailed information, you can read the original American College of Sports Medicine position stand: prevention of cold injuries during exercise.