This video explains the Bearsit Hip ER PAILs/RAILs - an effective way to turn hip external rotation from “something you can stretch into” into range you can actually control and use. The purpose of the drill is to expand and strengthen your hip ER by combining passive exposure with high-quality i...

This video covers Collapsed Kneeling Ankle Plantarflexion (PF) PAILs/RAILs - a drill designed to improve ankle plantarflexion range and, more importantly, your ability to own that range with strength and control. Better plantarflexion supports healthier ankles and feet, stronger push-off mechanic...

This video explains Seated Knee Internal Rotation (IR) PAILs/RAILs - a drill designed to improve knee rotation capacity and teach you to own internal rotation with strength, not just “access it” passively. Knee rotation tolerance matters because real movement isn’t perfectly straight: cutting, pi...

This video covers Seated Shoulder Swimmers - a controlled, flowing drill that helps you improve how the shoulder moves through its workspace without stiffness, hitching, or “jumping” between positions. The purpose is to build smooth, coordinated shoulder mechanics by moving through transitions sl...

This video explains Seated Knee External Rotation (ER) PAILs/RAILs - a drill used to expand and strengthen knee/tibial external rotation and improve how well your knee tolerates rotation. Rotation tolerance matters because the lower limb is rarely “straight-line only.” Running mechanics, squattin...

This video covers Prone Shoulder Swimmers - a shoulder control drill done lying face down to help you move through shoulder positions with more precision and less cheating. The prone setup limits common compensations (like rib flare, excessive spine movement, or shrugging) so you can focus on smo...

This video covers Side-lying Sleeper Shoulder Internal Rotation (IR) PAILs/RAILs - a drill designed to improve shoulder IR range and, more importantly, your ability to control and tolerate that range under tension. Shoulder internal rotation matters for healthy overhead function, smoother pressin...

This video covers Prone Shoulder External Rotation (ER) PAILs/RAILs - a drill designed to expand and strengthen shoulder ER so the range you gain is range you can actually control. Shoulder external rotation is a big piece of healthy overhead mechanics, stable pressing, strong pulling, and should...

This video covers the Combat Base Ankle Dorsiflexion (DF) PAILs/RAILs - a drill designed to improve ankle dorsiflexion range and, more importantly, your ability to control and tolerate that range under load. Dorsiflexion matters because it heavily influences how you squat, lunge, run, and land. W...

This video covers Collapsed Kneeling Spine Segmentation - a drill built to teach segment-by-segment control of the spine through deep flexion and extension. The purpose is to improve spinal awareness, reduce “blocky” movement, and expose hinge points where one area does all the work while the res...

This video covers Bearsit Hip Capsule CARs - a rotational priming drill designed to prepare the hip joint and capsule for deeper work, especially PAILs/RAILs and other isometric tension training. The purpose is to take the hip through slow, controlled internal/external rotation so the joint is “o...

This video covers Straddle Base Hip Capsule CARs - a straight-leg rotational priming drill that prepares the hip joint and capsule for deeper work, especially PAILs/RAILs and other high-tension isometrics. The purpose is to take the hip through slow, controlled internal/external rotation so the j...

This video covers Prone Shoulder Flexion PAILs/RAILs - a drill designed to expand and strengthen shoulder flexion (your ability to reach overhead) so the range you gain is range you can actually control. Shoulder flexion is essential for healthy overhead mechanics in pressing, pulling, hanging, a...

This video covers Supine Sleeper Hip Internal Rotation (IR) PAILs/RAILs - a drill designed to expand and strengthen hip IR so the range you gain is range you can actually control. Hip internal rotation is a major piece of healthy hip mechanics for squatting, running gait, cutting/pivoting, and lo...

Develop strong, controlled overhead shoulder mobility using Progressive and Regressive Angular Isometric Loading (PAILs & RAILs) in a prone base position.

Using a stick, PVC pipe, or dowel elevated on blocks, you'll load the end range of your shoulder flexion — the point where your overhead reac...

Transform your hip external rotation mobility with this 90/90 kinetic stretch — a dynamic, active approach that replaces passive holding with intentional muscular effort, making every rep a genuine strength and mobility stimulus.

In the 90/90 position with the front leg in external rotation, rat...

Build active hip internal rotation and abduction strength with this foundational 90/90 IR lift-off drill — a clean, honest test of how much active control you truly have over your hip's most neglected range of motion.

Seated in the 90/90 position, the rear leg sits in internal rotation. From thi...

Develop active hip flexor strength in external rotation with this 90/90 ER flexion lift-off drill — a precise, demanding movement that isolates the hip flexors in one of their most challenging positions and builds the kind of active control that passive stretching simply cannot develop.

Seated i...

Build active shoulder flexion strength at end range with this quadruped lift-off variation — a natural progression from the PAILs/RAILs drill that isolates the regressive tissue behind the shoulder, demanding it generate real force at the very limit of available range.

In the same quadruped base...

Strengthen and expand your wrist flexion end range with PAILs and RAILs in a quadruped position — a simple, equipment-free drill that builds genuine wrist resilience and active flexion range from the inside out.

In a quadruped position, the backs of both hands are placed flat on the floor, loadi...

Strengthen and expand your shoulder flexion end range with PAILs and RAILs in a modified quadruped position — a precise, well-loaded drill that uses a vertical stick to achieve and train near end-range shoulder flexion with full spinal integrity.

In a standard quadruped position, one hand holds ...

Develop active shoulder flexion strength at end range with this prone lift-off drill — a focused, low-load movement that directly challenges your ability to generate muscular force at the very top of your overhead range, where most people have little to no active control.

Lying face down with th...

Develop active hip internal rotation strength with this focused 90/90 IR lift-off drill — a precise, honest movement that directly tests and trains your ability to generate force at the end range of hip internal rotation.

Seated in the 90/90 position, the attention is entirely on the rear leg in...

Strengthen and expand your hip external rotation end range with PAILs and RAILs applied to the front leg in the 90/90 position — one of the most direct and effective ways to build genuine, lasting ER mobility that goes beyond what passive stretching can achieve.

Seated in the 90/90 position, the...