The simplest, most efficient way to condition your shins for kicking is to train directly on a heavy bag.

By hitting the bag with your shinbone, you simultaneously refine your kicking technique and condition your shins to deliver harder, more effective kicks.

Supplemental methods - like rolling a broomstick or glass bottle along your shin or lightly tapping it - do help but it's nothing in comparison to the direct impact of bag work.

In this post I will outline a straightforward, effective drill to condition your shins while enhancing your roundhouse kick technique.

Video Breakdown

The Essentials

For this drill, you'll need a tall, heavy bag - the heavier, the better. Focus on throwing roundhouse kicks to the lower part of the bag, targeting either the legs or the body.

You'll drill 2 types of roundhouse kicks:

• Rear Roundhouse: Delivered from your rear leg to the legs or body.
• Lead Roundhouse: Executed by switching stances or performing a switch kick, primarily targeting the body (e.g., the liver).

The conditioning targets the entire shin, from the bottom near the ankle up to just below the knee. By striking the bag, this whole area gets tougher over time, whether you hit lower or higher.

The Drill

This drill emphasizes technique, power and shin conditioning through repetition. Here's how it works:

• Reps: Perform 50 kicks per leg, split between rear roundhouse kicks to the legs and body and lead roundhouse kicks (via stance switch or switch kick) to the body.
• Structure: Instead of doing all 50 kicks on one side, alternate 10 kicks per side with a short break (about a minute) before repeating. Continue until you hit 50 kicks per leg.
• Focus: Concentrate on the mechanics of the roundhouse kick. Avoid throwing combinations - this drill is solely about perfecting the kick and conditioning the shin.
• Mental Setup: While not physically throwing punches, visualize setting up kicks with a jab or jab-cross to mimic real fight scenarios. This primes your mind for practical application without altering the drill's purpose.

Important Note: In a fight, avoid throwing single roundhouse kicks to the legs without a setup. Solo kicks are telegraphed and will often be checked, risking shin damage or even a break. Always set up kicks with combinations to prevent your opponent catching you.

Types of Roundhouse Kicks

Your rear roundhouse kick can vary based on technique and preference. Here are three common variations for leg kicks:

• Upward Angle: A subtle, less telegraphed kick targeting the thigh, minimizing hip rotation.
• Diagonal Whip: A straight-across kick with full hip drive, slicing diagonally through the target.
• Downward Slice: A kick that rises then cuts down across the leg at a sharp angle.

Choose the variation you prefer or mix all three - each lands with the shin, conditioning it effectively. For body kicks, aim for a standard roundhouse to the torso, targeting the liver (left kick) or opposite side (right kick).

Technique Matters

Proper technique is critical:

• Hands Up: Keep your opposite hand by your chin to protect your face. The same-side hand can drop slightly to counterbalance, but keep the shoulder raised.
• Hip Rotation: Open your hips fully by rotating the planted leg as you kick. This maximizes power and ensures proper mechanics.
• Kick Through: Don't just hit the bag—drive your shin through it, as if penetrating the target.
• Switch Kick Momentum: For lead leg switch kicks, use the stance change to generate velocity, driving the shin into the body.

Progression

Your shin's conditioning level determines the drill's intensity:

• Beginners: Start lightly, focusing on technique. Gradually increase power as your shins adapt, targeting the bag's denser lower section.
• Advanced: Push for 80–100% power early, but dial back if pain sets in. For example, after 50 reps, if one shin feels sore, reduce intensity to maintain technique while still conditioning.

Build slowly, full-power kicks come with time and consistent bag work.

Shin Liver Kick

A well-placed roundhouse to the liver (left rear or switch kick) will drop a bigger, stronger opponent. After landing to the liver there is a delayed response, the kick hits then 1–2 seconds, body shuts down and they drop.

To master this, take a look at "Liver Hunter" program, a comprehensive course covering beginner to advanced setups, including punches, knees and kicks to target the liver effectively.