Moving Better, Running Faster: The Essential Guide to Mobility

Running is often described as a simple sport, but for those looking to improve their London Marathon times, training along the Thames Path, or navigating the parks of West London, it is clearly a complex sequence of rotations and plyometric loads.

To run efficiently—and stay off the treatment table—you need more than just cardiovascular fitness; you need strength, stability, balance, and the range of motion to allow your body to move through its natural gait cycle efficiently.

In our experience, there are three key areas that need attention to increase running performance and decrease injury risk: the calves, hips, and thoracic spine. Mobility in each of these areas can dramatically improve your stride length and fluid motion, reducing stress on the body and increasing energy transfer.

Static vs. Dynamic: Timing Your Mobility

When developing a strength training programme for our runners in Fulham, we always highlight that understanding when to stretch is as important as the stretch itself.

• Dynamic Stretching: These are active movements where joints and muscles go through a full range of motion (e.g., Dynamic calf stretches). These should be done before a run to increase blood flow and wake up the nervous system.

• Static Stretching: These involve holding a position for 30–60 seconds (e.g., Seated glute stretch). These are best reserved for after your run to help reset muscle length and kickstart recovery.

1. The Ground Contact Relationship: Gastrocnemius vs. Soleus

Your calves are the "springs" of your gait, but many runners treat the calf as one muscle. It is actually two distinct parts that require different approaches to prevent issues like Achilles tendinopathy, shin splints, and plantar fasciitis.

• The Gastrocnemius: This is the large, visible muscle that crosses both the knee and the ankle. It is the powerhouse plantar flexor that drives the toe-off action. It is at its most powerful when the leg is straighter and more extended at the knee. Because of this, the gastroc is targeted with a Straight leg calf stretch.

• The Soleus: This muscle lies underneath the gastroc and does not cross the knee. While the soleus is still a plantar flexor, it has more of a stabilising role when running, helping to control the transition of force from impact through to the point where the gastroc kicks in for toe-off. Because the soleus originates at the tibia and does not cross the knee, you must bend the knee to stretch it—try the Bent leg calf stretch.

• The Shin Splint Connection: The soleus plays a massive role in managing the impact forces that lead to medial tibial stress. When this muscle is restricted, it cannot properly absorb shock, transferring that force directly into the shin bone. Consistent mobility work here is a staple of personal training in Fulham for those looking to build resilience.

2. The Power Centre: Hips, TFL, and IT Band Health

The hips are the primary drivers of stride length. If your hips are "locked", your stride becomes choppy and inefficient, and your lower back has to facilitate a lot of the movement. This can lead to the spine being in a less efficient position to absorb forces, often resulting in lower back pain when running.

The Hip Flexors: The Engine of the Stride

The hip flexors (primarily the psoas and iliacus) are responsible for lifting the knee during the "swing phase" of your run. However, when tight or short, they restrict the extension you can achieve through the hip and trail leg when toeing off. Because many of us spend our days sitting at desks, these muscles often become chronically shortened.

• The Injury Risk: When the hip flexors are tight, they pull the pelvis into an anterior pelvic tilt. This creates a "false" sense of tightness in the hamstrings and, more importantly, prevents the glutes from firing correctly. This lack of extension effectively shortens your stride and forces the lower back to overarch to compensate, often leading to chronic lumbar pain.

• How to Stretch Them: To effectively target the hip flexors, use the Kneeling Hip Flexor Stretch. The key is to tuck your tailbone under (posterior pelvic tilt) and squeeze the glute of the trailing leg before leaning forward slightly. For a deeper release, the Adjusted Thomas stretch on a foam roller uses gravity to allow the hip to drop into full extension, resetting the muscle length.

The Interconnected Role of TFL and Glutes

If you’ve ever suffered from IT Band Syndrome, you know the pain is felt at the knee—but the cause is usually at the hip. The IT Band is a thick piece of connective tissue originating from both the Glute Maximus and the Tensor Fasciae Latae (TFL).

• The Tug-of-War: The glutes are the main powerhouse of both force production and stability at the hip. The TFL maintains the tension of the lateral fascia (the IT Band). When the glutes are weak or inactive, the TFL overcompensates, becoming tight and "cranking" on the IT Band. Conversely, when the glutes are overactive or tight, the TFL often has to match this pressure to maintain the tension. This increased tension causes the band to rub against the knee joint.

• The Solution: You cannot "stretch" the IT Band itself, but you can release the tensioners. Use the Kneeling Hip Flexor Stretch and the Adjusted Thomas stretch on a foam roller to open the front, and add some internal rotation to hit the TFL via the Supine 90:90 stretch. Finally, the Seated glute stretch ensures the glutes are mobile enough to stabilise the pelvis. Combining TFL and glute stretches is the best way to avoid and treat IT Band Syndrome.

3. The Secret Weapon: Thoracic Spine

Many athletes ignore the upper body, but the thoracic spine (mid-back) is the "control centre" for the body’s natural rotations.

• Rotation: Running is a contralateral movement—left leg forward, right arm forward. This requires rotation through the upper back. Being limited through your thoracic spine will inhibit the lower body's ability to rotate and fully extend through your stride. This shortens your stride length and increases the load on the lower body to absorb impact. Exercises like Thread the needle or Laying Thoracic Open Ups help maintain this capacity and prevent the lower back from taking on rotation it isn't designed for.

• Extension: The

   encourages thoracic extension, opening the chest for better oxygen intake and a more upright, "tall" running posture—essential for maintaining form during those final miles in SW6.

Putting it All Together

To see these movements in action, check out our Instagram post or Youtube short below! I’ve demonstrated a full sequence, including the World’s Greatest Stretch, which hits the ankles, hips, and T-spine in one fluid motion.

Are you a runner in Fulham, London? Do you want to improve your times or manage injuries? Contact us to take advantage of our trial personal training offer and learn how to effectively train strength for running!