A personal trainer shares why the in-and-out exercise is a worthy alternative to leg raises for strengthening your deep core and hip flexor muscles.

“The posterior tibialis is a muscle that originates on the back, or posterior, part of the tibia and fibula (your lower leg bones), up close to your knee,” explains Cathlin Fitzgerald, D.P.T ...

Post hoc analyses for 'body part' showed that the mean posterior spine muscle usage, was significantly higher during trunk extension (56.6 ± 30.8%MVC) than during leg extension exercises (47.4 ± ...

MASTER CLASS: ‘Posterior chain’ development targets muscles October 17, 2022 at 2:29 a.m. by Matt Parrott ...

4 key tips for strengthening your deep core muscles Find them first: Since we are much more accustomed to engaging the superficial ab muscles, like the rectus abdominis, it's common to default to ...

Objectives: To use a randomised, double blind, placebo controlled trial to establish the effect on straight leg raise, hip internal rotation, and muscle pain of dry needling treatment to the gluteal ...

Tight hip flexors, especially a deep muscle called the psoas, can silently stress your spine. Here's why this muscle deserves more attention—and how to strengthen it.

Lift both legs up toward the ceiling and lower them halfway, so that they’re at about a 45-degree angle. Curl your head up and lift your arms a few inches off the floor, keeping your palms down.