The Spring Ankle, a black three-legged device with a vertical handle, round base, leg bolts, and a slot on its main body, sits on a dark surface in front of a brick wall.

Spring Ankle

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The Spring Ankle, a black three-legged device with a vertical handle, round base, leg bolts, and a slot on its main body, sits on a dark surface in front of a brick wall.
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Spring Ankle

$250.00

A stylized black lowercase n with a curved blue line arcing over its right side, forming part of a minimalist logo design.
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Spring Ankle
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Resources Featuring Spring Ankle

A person wearing a tan fleece jacket and watch sits at a wooden table, holding a white and green COVID-19 rapid test device. A small black bag rests on the table.

Creative Ways to Time Agility Drills with Freelap and Post to Your Scoreboard

By Test Author Â· Blog
A person wearing a tan fleece jacket and watch sits at a wooden table, holding a white and green COVID-19 rapid test device. A small black bag rests on the table.

Creative Ways to Time Agility Drills with Freelap and Post to Your Scoreboard

By Test Author Â· Blog
A person wearing a tan fleece jacket and watch sits at a wooden table, holding a white and green COVID-19 rapid test device. A small black bag rests on the table.

Creative Ways to Time Agility Drills with Freelap and Post to Your Scoreboard

By Test Author Â· Blog
The Spring Ankle, a black three-legged device with a vertical handle, round base, leg bolts, and a slot on its main body, sits on a dark surface in front of a brick wall.
A nine-panel collage features a person using the Spring Ankle black calf-raise foot platform for ankle mobility exercises, showing various foot angles in labeled panels from Position #1 to Position #9.
The Spring Ankle chart displays 8 torque positions, details running/sprinting benefits, and shows big toe/heel as high or low plus heel orientation (in/out).

Spring Ankle

$250.00

The ankle is where speed starts. Weak or poorly positioned ankles lead to energy leaks, slower ground contact, and increased injury risk. The Spring Ankle trains athletes to develop stiff, reactive ankles—crucial for sprinting, jumping, and changing direction at game speed. Designed by Cal Deitz and Stray Dog Strength, created by Chris Korfist Inspired by…
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Spring Ankle

The ankle is where speed starts. Weak or poorly positioned ankles lead to energy leaks, slower ground contact, and increased injury risk. The Spring Ankle trains athletes to develop stiff, reactive ankles—crucial for sprinting, jumping, and changing direction at game speed. Designed by Cal Deitz and Stray Dog Strength, created by Chris Korfist Inspired by…