Analysis of different strikes in runners

La patiente est une femme de 83 ans qui marche régulièrement.(5000 pas/jour) et qui souffre depuis deux mois de douleurs sous la voûte plantaire (partie antérieure du talon) au niveau du pied gauche. Ces douleurs apparaissent dès le réveil, diminuent dans la journée et réapparaissent après chaque phase d’arrêt. Ces douleurs l’empêchent de faire sa marche quotidienne.


Analysis of different strikes in runners

Biomechanical parameters

Pronation / Supination angles

Angle of attack

Propulsion angle

Clearance, Steppage

How is the solution used in the practitioner’s daily activity?

The podiatrist uses® for the dynamic analysis (walking or running depending on the patient). He collects data on the patient’s walking or running

activity using the web interface available online at The results are then presented to the patient, allowing the patient to integrate them into the treatment process and facilitating acceptance.

Does the practitioner use other movement analysis systems?

The practitioner uses a camera to analyse the activity of athletes and movement analysis software in 2 dimensions of movement.

Comparative study of 3 runners

  • Runner 1: sprinter specialising in the 400m, 186cm, 80kg, Nike shoes
  • Runner 2: trail runner, 182cm, 72kg, Ascis trail shoes
  • Runner 3: marathon runner, 188cm, 77kg, Ascis Nimbus

3 runners with 3 different profiles and pathologies:

  • Runner 1: Achilles’ tendonitis
  • Runner 2: ext right knee pain with the start of a meniscal lesion
  • Runner 3: left knee pain (ITBS)

What information was collected during the clinical examination?

Each runner came in following pain that occurred during running. Some were forced to stop running.

Runner 1: inflammation of the Achilles tendon, daily discomfort, pain increases when running. Upon examination we found hollow feet and varus (deformation increased on the left)

Runner 2: meniscal lesion on the right knee combined with the beginning of an external arthrosis, no specific misalignment detected in the examination, but a slight collapse of the midfoot is observed.

Runner 3: pain on the external face of the left knee, suspected iliotibial band syndrome. Upon examination we observe a calcaneus valgus combined with a midfoot collapse

Information collected using DigitsolePro during the walking examination

Fabrice Millet uses DigitsolePro® for dynamic analysis (walking and running for these patients).

He collects data on the patient’s walking and running activity using the web interface available online at The results are then presented to the patient, medical staff and loved ones, allowing the patient to integrate them into the treatment process and facilitating acceptance.

Different parameters will be used to complete the clinical examination:

To complete the clinical examination, a walking and running examination will be done using DigitsolePro. The walking examination will allow us to better understand the data from the running. Based on the pathologies, certain parameters will be looked at in a more in-depth manner.

For the patient with Achilles’ tendonitis, we can see the consequences on walking and thus evaluate the pain (contact time compared with the healthy side), but also determine whether certain factors may be the cause of the inflammation (deviation of the foot when running and walking, type of running strike, force of impact).

For the patient with the meniscal lesion, verify what could tend to overload the external compartment (deviation of the foot when walking and running, type of strike, force of impact) and look at the consequences on walking and running.

For the patient with ITBS, the aim is to understand the cause of the appearance of this pathology (pronation or supination) and the significance of the deformations in order to propose the most suitable treatment. But it is also to advise the patient on their running in order to minimise deformations.

Proposed treatment

Runner 1: correction of stationary and dynamic deformations using orthopaedic soles, lifting of the heel with heel pieces which will be used for a short period of time (1 to 2 months) and implementation of the Stanish protocol by the physical therapist, which the patient will then practice on their own at home.

Walking and running test repeated after 6 months, no more pain, resumption of sprinting practice. The only problem is that the patient only rehabilitated the side experiencing pain and created a difference in the moment of propulsion, with muscles used differently on the two sides.

Runner 2: the aim is to rebalance the support, which will be done using orthopaedic soles, and the physical therapist will also propose a proprioceptivity programme. He can also change his stride using a less pronounced heel strike, and also by choosing shoes that encourage a midfoot strike.

Runner 3: a strength training program will be proposed, combined with the creation of orthopaedic soles, advice regarding running shoes for pronators (e.g., Asics Kayano) will also be given


Each runner has a different strike and way of running and can develop pathologies based on that. The advantage of DigitsolePro is to complete the clinical data and allow for specific treatment. It allows us to follow the evolution over time.

There is no strike that is preferred and recommended but depending on the runner and his or her pathologies, we can help them change their way of running in order to eliminate injury.

The great “method” of being aerial/airborne is not recommended to everyone and as we can see (runner 1) can also provoke pathologies. If there is a change to propose to the runner, it should be done in a progressive manner and based on the runner’s profile.

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