Improve Your Running Mechanics: Big Toe Extension Mobility

Big toe extension mobility is often overlooked when talking about efficient running mechanics, why is this so important?

During the phases of running, proper push-off requires your big toe to extend at least 45 degrees which is crucial to set up for an efficient propulsion phase. This is also known as triple extension when the trail leg is in full hip, knee, and ankle extension.

When there is a lack of big toe extension mobility we can see a decrease in hip, knee, and ankle extension. This can cause your stride length to be shortened which leads to an insufficient propulsion phase. Being able to push off your big toe also tightens the band of tissues underneath your foot (plantar fascia) to create a spring mechanism that propels your leg forward with less energy.

Here are some exercises to help improve your big toe extension mobility:

 

1️⃣ Lunge with big toe extension stretch

🔸Shift your weight onto the big toe on the back leg
🔸You should feel a stretch on your toe and/or bottom of your foot.
🔸Perform 5 slow repetitions

 
 

2️⃣ Quadruped rock backs

🔸As you sit back onto your ankles focus on stretching your big toe
🔸Perform 5 slow repetitions

 
 

3️⃣ Heel raises with elevated big toe

🔸Place a towel roll under your big toe right before the ball of your feet
🔸Focus your pressure on the big toe while pushing up
🔸Perform 3 sets of 15

If you are currently dealing with and injury, we can help!

 

Improve Your Running Efficiency: Increasing Step rate to prevent Over-striding

What is over-striding and why is it bad?

Over-striding is defined when your initial foot strike lands in front of your center of mass (picture on the left). This causes an increase in joint loading, ground reaction forces, and breaking forces. If your body is not able to adapt to these forces an injury can occur. Ideally, your foot should be landing close to your center of mass, somewhere between your ears and eyes.

Here's a quick strategy to improve your running efficiency and decrease joint loads

One simple strategy is by increasing your step rate per minute (SPM) by 5-10%. This has been shown to reduce lower extremity joint loading and improve running kinematics. The picture on the right shows me running at a 10% increased SPM which puts my initial foot strike closer to my center of mass.

 
 
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🔸Increasing your SPM by more than 10% requires greater oxygen consumption which can affect your running efficiency
🔸I use an app called RunTempo, which is a metronome to help find and modify your SPM when training
🔸Give this a shot and see if it helps!

References:

Bramah C, Preece SJ, Gill N, Herrington L. A 10% Increase in Step Rate Improves Running Kinematics and Clinical Outcomes in Runners With Patellofemoral Pain at 4 Weeks and 3 Months. Am J Sports Med. 2019 Dec;47(14):3406-3413. doi: 10.1177/0363546519879693. Epub 2019 Oct 28. PMID: 31657964; PMCID: PMC6883353.

Lyght M, Nockerts M, Kernozek TW, Ragan R. Effects of Foot Strike and Step Frequency on Achilles Tendon Stress During Running. J Appl Biomech. 2016 Aug;32(4):365-72. doi: 10.1123/jab.2015-0183. Epub 2016 Mar 8. PMID: 26955843.

Heiderscheit, Bryan C et al. “Effects of step rate manipulation on joint mechanics during running.” Medicine and science in sports and exercise vol. 43,2 (2011): 296-302. doi:10.1249/MSS.0b013e3181ebedf4.

How to Prevent Running Injuries

There is a high incidence of lower extremity running injuries occurring in recreational and competitive runners, the knee being the most predominantly injured joint. Some risk factors that can increase the probability of a running injury include long training distances per week and a history of previous injuries. So how can we help prevent injuries like this from happening and keeping us off the sideline?

 
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We need to prepare our bodies to adapt to ground reaction forces during running. On longer runs (more than 3 miles), it’s important that we prevent the breakdown of running mechanics and improve running efficiency.

Here are some areas that can be addressed to improve your resilience to injury:

🔸Training plan modification to safely balance your weekly workload
🔸Muscle strength and joint mobility deficits to improve load absorption
🔸Modifying running form and technique to improve energy efficiency
🔸Proper recovery and nutrition to prevent burnout

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van Gent RN, Siem D, van Middelkoop M, van Os AG, Bierma-Zeinstra SM, Koes BW. Incidence and determinants of lower extremity running injuries in long distance runners: a systematic review. Br J Sports Med. 2007;41(8):469-480. doi:10.1136/bjsm.2006.033548

Arnold, Michael & Moody, Aaron. (2018). Common Running Injuries: Evaluation and Management. American family physician. 97. 510-516.