What is your TFL? Your TFL, which is short for Tensor Fascia Latae, is a small muscle located in your outer hip that can have big ramifications for how you feel if you’re a runner.

The main players are the gluteus medius, gluteus minimus, and tensor fasciae latae (TFL) muscles, according to Kollins Ezekh, CPT, a celebrity trainer and fitness coach.

It uses that muscle – the TFL [tennsor fasciae latae] muscle – on the end of the ITB. The shortening of the TFL then pulls on the ITB, causing it to become too tight and therefore painful.’ ...

Diffusion tensor imaging (DTI) has emerged as a powerful non‐invasive modality for characterising the microstructural organisation of skeletal muscle. By quantifying the directional diffusion of ...