The best, most fastest way that’s on recording for reliably correcting your heel strike to a forefoot strike (see here what a proper forefoot strike looks like) is to do more running in minimalist shoes, or even better, do a little barefoot running because the sensory input, or enhanced feel of the ground, is the only way to enable your neuromuscular system to coordinate groups of muscles and reflexes that keeps you from landing on your heels, and guides your foot to land forefoot-first.

The Science is Settled that Barefoot Running Leads to the Quickest Improvements in Running Form
Barefoot running was found to do a better job at making you enforce a more stable, consistent and proper forefoot strike as compared with running in thick cushioned running shoes ( Douad et al. 2012; Lieberman et al. 2010; Robbins & Hanna 1987).
- Barefoot running delivers a constant flow of sensory input (ground-feel) which allows the brain to sustain foot strike monitoring for extended periods, whereby when you run barefoot, your instinct is always to avoid heel strike, and there’s little counter-evidence against this.
In contrast, unrelenting suppression of ground-feel with thick shoe cushioning results in frequent foot strike errors, while causing the foot to rush down too forcefully, producing a greater downward force.

If you don’t want to take the barefoot path, correcting mechanical problems can be also simplified by spending more time running in, barefoot simulated footwear (minimalist shoes), shown below:

2. Forefoot Running on Hard Surfaces
Properly maintaining a forefoot strike seems to thrive on harder surfaces, such as pavement, whereas softer surfaces, such as grass may threaten your ability to land forefooted properly. Additionally, running barefoot or in barefoot like running shoes, improves the ability to notice foot strike patterns on harder surfaces.
Because landing on the heel hurts on pavement, barefoot or pure minimalist shod runners develop a better ability to stay off their heel at touchdown. Other work has found that running, especially when barefoot, on pavement optimally refreshes the forefoot strike as compared with running on mats, or cushioned surfaces.
3. Ankle Plantar Flexion
Ankle plantar flexion means that the toes do not point up upon and at touchdown.
Running barefoot or in zero drop running shoes encourages ankle plantar flexion at touchdown, resulting in an accurate forefoot strike landing (Giandolini et al., 2013; Lohman et al., 2011).

By fully relaxing your forefoot via ankle plantar flexion, augments a forefoot strike and prevents shin muscle-burnout as compared with ankle dorsiflexion.
4. Knee Flexion
It is easier to apply the forefoot strike when the knee is slightly bent (flexed) at touchdown because increased knee flexion increases cadence and reduces stride duration by preventing the swing leg from extending too far ahead of the center mass (Fleming et al. 2015).

A long line of evidence found that barefoot runners have greater knee flexion at touchdown, suggesting that greater knee flexion sharpens forefoot strike response time during running.
The Take Home Message
Employing these 4 strategies will shape and optimize the perfect forefoot strike landing to your advantage! And always remember that the ability to maintain forefoot strike without errors occurs best with less shoe materials.
More From Run Forefoot:
Best Shoes for Forefoot Strike
References:
De Wit, B., De Clercq, D., & Aerts, P. (2000). Biomechanical analysis of stance phase during barefoot and shod running. Journal of Biomechanics, 33, 269–278.
Fleming et al. Acute response to barefoot running in habitually shod males. Hum Move Sci, 2015;42:27-37.
Lieberman, D. E., Venkadesan, M., Werbel, W. A., Daoud, A., D’Andrea, S., Davis, I., et al (2010). Foot strike patterns and collision forces in habitually barefoot versus shod runners. Nature, 463, 531–535.
Perl, D. P., Daoud, A. I., & Lieberman, D. E. (2012). Effects of footwear and strike type on running economy. Medicine & Science in Sports & Exercise, 44, 1335–1343.
Robbins, S. E., & Hanna, A. M. (1987). Running-related injury prevention through barefoot adaptations. Medicine & Science in Sports & Exercise, 19, 148–156.
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Your point of view caught my eye and was very interesting. Thanks. I have a question for you.
I don’t think the title of your article matches the content lol. Just kidding, mainly because I had some doubts after reading the article.