How much shot power do you lose on your weaker foot?

There is no fixed shot power loss that applies to everyone’s weaker foot. The evidence points to coordination and the transfer of movement into the ball, rather than a simple stronger leg explanation.

That distinction matters when you practise. Calling a foot weak can make the gap sound permanent. A less familiar approach, uncertain support step, or poorly timed contact gives you something more specific to inspect. Start by describing the movement you can see instead of assigning your leg a fixed limit.

What the research actually measures

Dörge and colleagues studied kicking with the preferred and non-preferred leg. The findings collected for this guide report foot and shank velocity about 5 % higher on the preferred side. The shank is the lower leg. These are movement measurements, not a universal percentage of lost shot power.

The collected findings also report centre of mass velocity about 10 % higher and displacement about 13 % higher during ground support. The centre of mass study provides related context. These measures concern how the body moves while the player supports and prepares the kick.

Do not add those percentages together. They describe different quantities. Do not treat them as a promise about your next shot either. A group finding does not tell you your personal gap. It tells you which part of the movement deserves attention when you compare your own preferred and non-preferred side.

Coordination connects the movement

A kick involves movement through the body into the striking foot and then the ball. The cited explanation emphasises coordination between body segments and a better transfer of velocity at contact. Moving the leg quickly is not the whole task. The movement must reach the ball through useful contact.

That is why a video review can help you ask better questions. Does your approach remain comfortable? Can you see where the support foot lands? Does the striking foot meet the part of the ball you intended? You do not need a force estimate to notice a rushed or uncertain attempt.

Use the replay to describe what happened, rather than to diagnose every cause. A camera may hide the contact surface or flatten the movement. If the crucial moment is unclear, film again. A specific observation with a clear view is more useful than a confident explanation built on a hidden strike.

Make a fair comparison

Choose the same shooting task for each foot. Keep the ball placement, target, and camera position as similar as you can. If your preferred foot takes a settled practice shot while the other rushes a moving ball, the comparison includes more than foot preference. Write down that difference before you judge the result.

Keep unsuccessful attempts in the review. Choosing only the hardest strike from each side can hide consistency and control. Notice whether the ball reaches the intended area and whether the movement looks repeatable. Speed can support that review, but it should not erase the purpose of the shot.

Start with comfortable, controlled contact. As the movement becomes familiar, compare whether control remains when you ask more of the strike. This is a practice approach, not a promised improvement rate. The evidence here does not provide a timetable for closing your own gap.

What Kicky can add

Kicky identifies the shooting foot and supplies an estimated speed when the clip supports it. Its marked up replay gives you a shared view for comparing attempts. The coach writes its verdict after the measurements arrive. Treat that verdict as a prompt to inspect the clip and choose your next practice focus.

The measurements still have limits. Goal detection from a single camera tops out in the low to mid eighties percent. A ball in front of the net and a ball inside it can be the same pixels. An uncertain prediction should not decide whether your technique improved.

Use the filming guide to keep contact visible. Then read how video speed estimates work before comparing the figures. Your aim is a repeatable movement that serves the shot you want to play. A clear record of that movement gives practice a useful direction.