TOOL GUIDE
One small tool for better movement
A simple incline tool to level up calf stretching and ankle mobility. Cork wedges help you maintain more ankle dorsiflexion, so your stretch feels more targeted and controlled.
What are cork wedges
Cork wedges are small angled blocks that create a gentle incline under your feet. They work like a compact slant board, helping you hold a calf stretch with more ankle dorsiflexion than a flat ground stretch.
This matters because better positioning often leads to a better stretch and a more consistent routine. The goal is not forcing range. The goal is steady, repeatable positioning you can practise regularly.
Best for
- Tight calves
- Stiff ankles
- Squats that feel restricted at the ankle
- Walking and running that feels limited through the lower leg
Why incline based stretching works
Research comparing calf stretching techniques suggests that stretching on an inclined surface can be more effective than flat ground body weight stretching. Cork wedges provide that incline so you can apply the same principle at home.
Research
Incline can improve calf stretching
Calf stretching performed on an inclined board has been shown to outperform common wall based static stretching approaches in healthy individuals.
Kim et al. (2020).
Clinical
Better outcomes beyond flexibility
Inclined calf stretching protocols have reported improvements in pain and functional outcomes, including in people with low back pain.
Hafeez & Shabana (2024).
Practical
More dorsiflexion, less compensation
The wedge helps you maintain the angle needed for a solid stretch without rushing or forcing range, which can support cleaner mechanics.
How to use cork wedges
Keep it simple. Aim for good positioning and consistency. If anything feels sharp or aggravating, reduce intensity and shorten the hold.
Set your stance
Place the wedge under the front of your foot so your toes are slightly higher than your heel. Keep your heel down and your foot stable.
Find a steady stretch
Move forward until you feel a calf stretch. Keep it calm and controlled. You should feel a stretch, not pain.
Repeat instead of forcing
Do shorter holds and repeat them. This often feels better than trying to push deeper and deeper in one long hold.
Pair with strength
Stretching is a piece of the puzzle. Combine it with calf and foot strength work to support lasting change.
Online Exercise Programs
Want more guidance? Learn how to use your cork wedges inside our online portal, where you get access to 150+ exercise videos, simple routines, and step by step progressions. Start with one routine and build from there.
- Over 150 guided exercise videos to rebuild foot strength and stability
- Simple mobility routines you can follow anywhere, regardless of your mobility level
- Expert led condition courses for Plantar Fasciitis, Bunions, and more
References
Kim, T. H., Lim, O. K., Park, K. D., & Lee, J. K. (2020). Comparison of Two Static Stretching Techniques for the Triceps Surae in Healthy Individuals: Wall and Inclined Board Stretchings. Annals of Rehabilitation Medicine, 44(2), 125-130. doi:10.5535/arm.2020.44.2.125
Hafeez, M., Muhammad Zia Ul Haq, & Shabana Rahim. (2024). The Impact of Calf Stretching Using Inclined Board Standing on Low Back Pain: An Interventional Study. Journal of Health and Rehabilitation Research, 4(3). doi:10.61919/jhrr.v4i3.1265