February 1 2018
Author of Running Rewired Jay Dicharry offers a hip mobility test (and some quick fixes) for runners of all fitness levels.
Baby, it’s cold outside, and you’re ready to put on your highest tech thermal gear and get out there already. Wait a sec—you’re almost ready. Doing a warm-up is smart any time of year, but it’s especially important when the mercury drops. A few minutes spent prepping for your run could help you perform better and reduce your risk of injuries.
When winter’s going full force and you’re out in it, your body wants to keep your vital organs warm, so it cuts back on circulation to your extremities—though helpful for your life, this isn’t 100 percent great for your running because your extremities are where most repetitive stress injuries occur, says Andrea Fradkin, Ph.D., associate professor in the department of exercise science at Bloomsburg University, who has done numerous research studies on warm-ups and injury prevention. Chilly air also reduces muscle-contraction force, which means that during hard efforts, your tendons and ligaments receive more stress at a time when they’re already a little vulnerable due to that lower blood supply.
Fortunately, Fradkin says that a good warm-up prepares your body for your run and helps you reduce these cold-related risks.
It has three parts (don’t worry; they’re quick).
Any kind of aerobic activity will raise your heart and breathing rates, Fradkin says. But as a runner, you might as well make this time work for your sport, so it’s a perfect opportunity to do all those drills you keep meaning to add to your workouts, like butt kicks, high knees, skipping and carioca (grapevine crossovers). See Know the Drill below for bonus tips.
If there are spots you need to stretch because they tend to get injured, do it now. Stretching before you run is controversial, but not to Fradkin, who cites this evidence: “My research has shown that as long as the body is warm prior to doing it, then there is no performance decrement to doing any type of stretching.”
Start slowly and build up to the pace(s) your workout is designed to hit that day. This is the equivalent of golfers or tennis players doing air swings before they hit a ball—it rehearses what you’re about to do. That enhances neuromuscular coordination, and it prepares your mind for what’s to come as well, Fradkin says.
It doesn’t have to take forever—even a little less than 10 minutes should be enough on most days. “My research has found that you really don’t need to warm up for extended periods of time, and in many cases, undertaking a long warm-up can start to use up some of your energy and negatively affect your performance,” Fradkin says. In the lab, scientists know that you’re warmed up by measuring core body temperature. “But considering that’s not a viable option for most people, the general rules of thumb include seeing a very light sweat and having an increased breathing and heart rate to the point where you can still speak a sentence without gasping for air, but nowhere near as well as when you are just resting,” she says.
On super-cold days, do a little more: An often-quoted rule of thumb is that for every 10-degree drop below 30 degrees F, you should extend your warm-up by five minutes. If you’re warming up indoors first, though, make sure you go out with dry clothes on. You don’t want to start clammy and get even colder.