Guest Post written by Dr. Antti Rintanen, MD, MSc
I have a guest post for you today written by Dr. Antti Rintanen. I’m sure that you will find it interesting.
Running is more than just putting one foot in front of the other – it’s a full-body activity that demands balance, coordination, and rhythm. While it’s often celebrated for its cardiovascular benefits, running also places unique stresses on the musculoskeletal system. As a doctor with a passion for biomechanics and injury prevention, I’d like to share how thoughtful attention to posture and technique can dramatically improve your running performance – and reduce the risk of injury.
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Why Posture Matters in Running
Postural health refers to the alignment and function of the body during movement and at rest. For runners, poor posture can lead to inefficient mechanics, excessive strain on joints and muscles, and ultimately injury.
Injury-prone runners often present with a combination of overuse syndromes – think IT band syndrome, plantar fasciitis, runner’s knee – and posture-related dysfunctions like forward head posture, rounded shoulders, or anterior pelvic tilt. These issues don’t always start with running, but they are often exacerbated by poor running form [1].
A runner with good posture maintains an upright yet relaxed stance, with the head stacked over the shoulders, the shoulders aligned with the hips, and the hips aligned with the feet. This alignment allows for efficient forward momentum, reduced impact forces, and optimized muscle recruitment.
Common Postural Faults in Runners
Let’s take a closer look at three of the most common postural issues I see in runners and how they affect performance:
1. Forward Head and Rounded Shoulders
Hours spent at desks or staring at screens encourage a hunched upper body. When you run in this position, your breathing becomes shallow, your arm swing is restricted, and your upper body can’t assist in propulsion. Over time, this posture can also strain your neck and upper back. In fact, poor posture has been shown to limit respiratory efficiency and reduce vital capacity [2].
2. Overstriding with Heel Striking
Overstriding – landing with your foot well ahead of your body’s center of mass – is a form and posture issue. It increases braking forces, wastes energy, and amplifies the load on the knees and hips. Research confirms that a higher step rate reduces joint loading and improves efficiency [3].
3. Pelvic Drop or Tilt
Weak glutes and core muscles can cause the pelvis to dip side-to-side (Trendelenburg gait) or tilt forward excessively. This poor alignment disrupts gait mechanics and overloads the lower back and hamstrings [1].
Key Principles for Postural Running
Improving your posture doesn’t mean becoming rigid. Instead, it’s about developing awareness and making small, consistent adjustments. Here are four doctor-approved principles to help injury-prone runners like you improve postural health through technique:
1. Run Tall
Think of a string gently pulling you upward from the crown of your head. This simple cue encourages an upright, aligned posture that allows for better breathing, efficient core engagement, and optimal force transfer through the legs.
Keep your gaze forward (about 10-15 meters ahead), your shoulders relaxed, and your arms swinging naturally at your sides. Avoid looking down at your feet – this shortens your neck muscles and shifts your weight backward.
2. Engage the Core
Your core muscles – abdominals, obliques, back extensors, and pelvic floor – play a central role in stabilizing the spine and pelvis during running. A strong, engaged core keeps your torso stable, reduces energy leaks, and helps prevent compensatory overuse of the lower back and hips [4].
Before you run, activate your core with exercises like dead bugs, bird dogs, or planks. During your run, think of gently bracing your midsection as though someone were about to tap your stomach – not tensing, just stabilizing.
3. Shorten Your Stride, Increase Cadence
Many posture-related running injuries stem from overstriding. Shortening your stride and increasing your cadence (step rate) helps you land more under your body, reduces ground contact time, and promotes a more efficient midfoot strike [3].
Aim for a cadence of 170-180 steps per minute as a general guide. You don’t need to hit this perfectly, but moving in that direction can help you find your body’s natural rhythm. A good cue is to imagine “running quietly” – minimizing the noise and impact of each step.
4. Use Arm Swing for Balance and Postural Stability
Your arms don’t just hang – they help maintain balance and rhythm. While research on arm swing’s direct effect on running economy is mixed, studies suggest that restricted or asymmetrical arm movement can compromise running stability and coordination [5].
Keep your elbows at about 90 degrees and swing them back and forth in rhythm with your stride. The motion should come from the shoulders, not the hands. A smooth arm swing helps keep your trunk stable and aligned.
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Strength Training and Postural Support
Running alone doesn’t build the postural strength needed to maintain proper form over time. That’s where targeted strength training comes in. Focus on:
These muscles support upright posture, hip stability, and spinal alignment. Incorporate two strength sessions per week to build the endurance needed to maintain form deep into your runs [4].
Breathing and Posture: The Missing Link
Another underappreciated connection: how we breathe influences how we hold ourselves. Poor posture restricts the diaphragm’s ability to expand, which limits oxygen intake. Conversely, efficient breathing reinforces better posture [2].
Try this: mid-run, check if your breathing feels shallow or strained. If so, scan your posture – are you slouching, leaning forward, or holding tension in your shoulders? Reset by taking a deep belly breath, lifting your chest slightly, and re-centering your stride.
Listen to Your Body
Postural awareness is a skill you can cultivate. Don’t obsess over perfect form, but pay attention to discomfort, fatigue, or repetitive aches – they’re often signs that posture and technique need adjusting.
Running form is dynamic, and your body changes with fatigue, terrain, and pace. Use the early miles of your run to dial in form, and the latter miles to maintain it.
Final Thoughts
Enhancing your postural health through mindful running technique doesn’t require a complete overhaul. Small, consistent improvements in alignment, cadence, and muscle engagement can lead to noticeable gains in performance – and a welcome reduction in injury risk.
For injury-prone runners like Emma and many of The PhD Runner’s readers, a posture-focused approach can be the key to not just running farther or faster, but running longer into life.
If you’re interested in more evidence-based tips on running and postural health, feel free to visit my site, The Internet Doctor, where I translate complex doctor knowledge into actionable advice for everyday athletes.
Happy running – and stay upright out there!
About the Author
Dr. Antti Rintanen is a Finnish medical doctor with a background in engineering and a special interest in biomechanics, injury prevention, and performance optimization. He is the founder of The Internet Doctor, where he translates complex doctor knowledge into practical advice for everyday athletes. When he’s not writing or consulting, you’ll find him running trails or analyzing the science of movement.
References
[1] L. M. Powers, “The influence of abnormal hip mechanics on knee injury: a biomechanical perspective,” J. Orthop. Sports Phys. Ther., vol. 40, no. 2, pp. 42–51, 2010. https://www.jospt.org/
[2] J. Han, S. Park, Y. Kim, Y. Choi, and H. Lyu, “Effects of forward head posture on forced vital capacity and respiratory muscles activity,” Journal of Physical Therapy Science, vol. 28, no. 1, pp. 128–131, Jan. 2016. https://www.jstage.jst.go.jp/
[3] A. R. Heiderscheit, T. S. Chumanov, B. J. Michalski, T. W. Wille, and D. G. Ryan, “Effects of step rate manipulation on joint mechanics during running,” Med. Sci. Sports Exerc., vol. 43, no. 2, pp. 296–302, 2011. https://pubmed.ncbi.nlm.nih.gov/
[4] D. M. Willson, J. D. Dougherty, M. J. Ireland, and I. K. Davis, “Core stability and its relationship to lower extremity function and injury,” J. Am. Acad. Orthop. Surg., vol. 13, no. 5, pp. 316–325, 2005. https://pubmed.ncbi.nlm.nih.gov/
[5] J. R. Fletcher, S. P. Esau, and B. R. MacIntosh, “Changes in tendon stiffness and running economy in highly trained distance runners,” European Journal of Applied Physiology, vol. 110, no. 5, pp. 1037–1046, Nov. 2010. https://pubmed.ncbi.nlm.nih.gov/
**Full disclosure: I didn’t receive any payment for sharing this guest post. The first two photographs were obtained from Pexels**
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