Explore the Collection

2026 05 30 Small Barrel Class Core

2026 03 31 Mat Core Level Class Toe Corrector to Begin

31 2020 83 Mat & Wunda Chair Workout

Rowing Thread with Arm Springs and Neck Stretcher

2020 March Old School - KRN Stretch Mat W Toe Corrector End

2026 05 29 Small Barrel Class Core

Wunda Chair Workout

This strong workout includes a variety of challenges including Going Up Front & Side, Leg Presses, Semi Circle - all with references to the Mat work and exercises details.

Ladder Barrel Workout

Wunda Chair Workout - clip4

Double Trouble - Double Foot Corrector Workout!

2024 10 30 Advanced Side Stability High Chair Workout

2020 - Foundational Reformer Goal Exercises - Leg Circles & Frog - Front View

Spine Corrector & Ankle Weights Core Workout

Join this CORE workout where Kathi is taking you through a Spine Corrector and Ankle Weights workout for a challenging full body workout à la KRN style!

2026 05 29 Small Barrel Class Core

Push Through Leg Springs and Roll Back Bar- a Full Body Workout -Aug 16, 2023

2021 411 Spine Corrector Workout

2020 - Foundational Reformer Goal Exercises - The Elephant

2020 - Baby Chair Workout

2024 092 3 Core Small Barrel with Splits

2021 12 16 Foundational Core Deep Powerhouse Workout Mat and Spine Corrector

2026 02 24 Advanced Spine Corrector

2020 - Wunda Chair Workout - Criss Cross

Tapas: Mat, Reformer & Spine Corrector with Weighted Pole

2024 08 24 Advanced Wall Unit: Cadillac Leg Spring and Roll Back Bar Workou