Strong leg muscles are crucial for running fast, but many runners underestimate the importance of upper body strength for good running performance.
Your arm swing influences every movement from your hips down. If you swing your arms faster, this automatically increases your step frequency. Slow and long swings produce the opposite effect: this is due to the fact that our arm and leg movements are coordinated by our brain.
The correct arm technique makes your running form efficient. However, you can’t run with optimal form until you build up your upper body. Today, I'm focusing on the biceps. All you need for this exercise is a looped band that you've probably gotten from a phsyio but that can also easily be bought online. I'll add a link in the comments.
In a kneeling position, wrap the band around your leg. Grab the band with the hand on the same side.Keep your upper body tall and shoulders relaxed.
Pull your hand up towards your shoulder against the resistance of the band. Your upper arm should stay stationary as you pull on the band, keeping your elbow underneath your shoulder and close to your body.
Release the hold and return to the starting position. Do 10-15 repetitions on one side, then switch to the other side.
A strong upper body is essential for guaranteeing an efficient transfer of energy from your body to your legs. Without this, the proper arm technique cannot provide optimal support to your legs. An efficient running form helps you run faster and expend less energy.