There are many factors that could be impacting your runs – the wrong soundtrack, the cold weather, that extra muffin at lunch time – but form is without doubt the biggest culprit.

Follow these simple steps to check yourself and make sure you keep perfect form:

Posture – avoid slouching and stand tall throughout your run, keeping your gaze forward at all times.

Cadence – keep your cadence high, about 180 strides per minute, by running lightly.

Midfoot – avoid heel striking to reduce impact, and forefoot striking, which can strain the calf and Achilles.

Lean – adopt a slight forward lean from the ankles, keeping your core strong so that you don’t start to bend forward at the waist.