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What is Plantar Fasciitis and using a Night Splint.

It is an inflammation of the plantar fascia, a ligament structure that supports the longitudinal arch of the foot. Plantar fascia is a tough, fibrous band of connective tissue that runs from the heel bone to the ball of the foot. Plantar Fasciitis is caused by repetitive strain and is the most common cause of localized heel pain.

Common Symptoms of Plantar Fasciitis:

Starts as a dull, intermittent pain in heel or arch, progressing to a sharp, persistent pain.

A sharp, piercing pain and/or inflammation through heel and foot that usually occurs in the morning or after resting and gradually disappears with walking.

Tightness in calf muscles.

Symptoms may be spontaneous.

Common Causes of Plantar Fasciitis:

Inflammation and pain result from increased activity or in association with aging.

Inflammation is usually the result of athletic activity and can be very painful, especially in the morning after cramping of feet and legs during sleep.

Flat feet or high arched, rigid feet.

Poor supporting shoes.

Large weight gain in a short period of time.

Running on hills or uneven surfaces.

Running on the balls of feet.

Night Splint terms

PLANTAR SURFACE - Refers to the sole or bottom of the foot

DORSIFLEXION - Toe-up motion of the ankle expressed in degrees from the 0-degree position of the foot at rest on the ground in the standing position.  Gentle Dorsiflexion is good" because it stretches and lengthens the tendons and muscles. Dorsiflexion of the foot - Night splints Dorsiflex the foot

PLANTAR FLEXION - Toe-down (pointing the toes) motion of the ankle expressed in degrees from the 0- degree position of the foot at rest on the ground in standing position.  Plantar Flexion is bad for plantar fasciitis, leg cramps, foot drop and Achilles Tendonitis because it contracts the tendons and muscles.

Plantarflexion of the foot

NEUTRAL POSITION - The 0-degrees position of the foot at rest on the ground in standing position.


PRONATION - Flattening out of the arch when the foot strikes the ground. The ankle will 'tip' downward and towards the inside.

Pronation of the foot

Plantar Fasciitis Resting Comfort Slipper
Night Splint

Cub Plantar Fasciitis Night Splint for stretching exercises A night splint actually comfortable enough to sleep in! Made of cool, breathable foam material, this plantar fasciitis night splint is lightweight with less bulk than other night splint devices for superior comfort. The inner shell provides lateral side support with an opening at the ankle to prevent irritation on the sensitive ankle bone. An adjustable hinge adjusts the amount of dorsiflexion from 0 to 10, and a built-in toe wedge gives an additional 5 plane for even greater stretch across the plantar fascia. Easy and quick to apply and comfortable enough to sleep in.


Plantar fasciitis splints are called "night" splints because they are typically worn at night during sleep or while resting after activity.  Often the most severe pain and inflammation of plantar fasciitis is experienced in the morning, causing the first few steps to be excruciating. The position of the feet and ankles as we sleep promotes cramping of the fascia and calf muscles. When feet are pointed under the weight of blankets the plantar fascial ligament is contracted (shortened). Those first steps in the morning are painful because the muscle and ligaments, which have been contracted all night, are suddenly stretched and pulled.  The HealWell Cub Night Splint is designed to comfortably position the foot in a controlled amount of dorsiflexion to provide a gentle stretch to the plantar fascia and Achilles Tendon. This gentle stretch helps reduce the ligamentous contracture, inflammation, and associated pain, and helps promote healing of the injured soft tissues. Night splints have been clinically proven to reduce symptoms of plantar fasciitis.

HealWell Cub is designed to control the angle or degree of dorsiflexion while relaxed, at rest or during sleep.  Can be worn with or without socks.

Night Splint being used for heel pain stretching

HealWell Cub Night Splint can be used for the following conditions:

Plantar Fasciitis Achilles Tendonitis

Calf Muscle Cramps Heel and Arch Pain

Muscle Tightening Pronation Syndromes

and Runners Cramps Calcaneal Apophysitis

Foot Drop Post-surgical treatment

Paratenon Tendonitis of the foot

Night splints should not be used for the following conditions:

Uncontrollable, severe plantar flexion spasticity
Fixed Ankle Contractures
During weight-bearing activities

Size according to US shoe size. Specify right or left.

Sizes Left
Fits Mens
Fits Womens
Small     Under 6 1/2 Under 7 1/2
Medium     7 - 10 1/2 8 - 11 1/2
Large     11 - 13 12 & up

The information provided here is for educational and reference purposes only.


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