This post is the first in a series of posts on what role various parts of our bodies play in running and how giving them some attention can improve our running. I’m going to work from the top to the bottom. So, what role do your arms play in running?
Your arms are important in running. Try running without them moving and you’ll find out just how important they are. Our arms propel us forward and help us maintain balance. They also catch us when we fall, hold our handheld water bottles, and make it much easier to eat and carry a hydration pack. It’s good to have arms.
Our legs move in relation to our arms. The faster we move our arms the faster our legs move. I often tell triathletes and ultraunners to focus on their arms as specific points in their races. For triathletes, it is after the transition from the bike to the run when you feel like a newborn baby giraffe. For ultrarunners, it when you just don’t think you can take another step.
Holding our arms in the proper form is going to improve our efficiency andendurance as runners. Runners arms should be bent at about a 90 degree angle and swing pretty much straight back and forward without crossing the mid-line of your chest. Your arm should go back until your hand passes just above the hips and come forward until your elbow is close to your waist. Elbows should point backward. Your arms and hands should be held loose, but not flopping around like rubber.
If you don’t have an efficient arm swing you’re going to burn more energy than someone who does. In distance running, you want to burn as little energy with each step as you can at the speed you want to go. Too much crossover causes you to over rotate your torso. Over rotation of the torso wastes energy and can cause injuries down the kinetic chain by changing your foot plant and the alignment in your hips, knees, and ankles.
Your arms help with balance, especially, during a trail descent. Hold them out from your body and assist your core a bit to stabilize you.
Strengthening your arms will help you maintain the proper arm swing and running form throughout your run and keeps your legs moving forward when they are tired. You don’t want large arm muscles because they just add weight you have to haul around. It’s a balance. Strive for lean muscle rather than bulk. To maintain lean muscle complete more repetitions and use less weight.
The exercise shouldn’t be easy and you should feel it by the time you finish a set and the last set should be hard. If you can’t do the number of reps listed below do what you can and work up. If it’s too easy, add more reps before you add more weight.
Here are some easy things you can do to increase and maintain arm strength: push-ups 3 sets of 12-15 reps; tricep press 3 sets 10-12 reps; bicep curls 3 sets 12-15 reps; flies with arms straight and then bent 3 sets 10-12 reps.