DescriptionThe AS-PU-02 is an anatomic-shaped calf sleeve designed to support and compress the calf for a minimum of 4 weeks after injury. It integrates a silicone pressure relief zone to protect highly sensitive injury sites while providing stabilising compression. Y-shaped, adjustable elastic straps (AirRubber II™) enable targeted compression without covering the injured area.
Clinical backgroundCalf pain often originates from overload or overstretching of the gastrocnemius and soleus muscles, which converge at the Achilles tendon. Activities such as tennis or squash can provoke tears (commonly referred to as "tennis leg"), producing acute pain, hematoma and reduced range of motion. Controlled compression and support help reduce pain, limit swelling and support tissue regeneration while allowing continued activity.
Symptoms observed in "tennis leg"- Pain at the back of the knee with limited knee motion
- Audible crack at the time of injury
- Occasional calf swelling
- Weak or absent plantar flexion of the foot
- Cramp or tear of the medial head of the gastrocnemius
- Reduced knee flexion strength, sometimes painful
- Painful or impossible heel rise (standing on tiptoes)
Product features- Anatomic-shaped calf sleeve, suitable for right and left leg
- Y-shaped adjustable elastic straps (AirRubber II™) for targeted compression and gentle massage effect
- Silicone pressure relief zone protecting highly sensitive injury areas
- Two adjustable circular elastic straps secure the support in place
- Elastic straps stimulate blood circulation and support regeneration without covering the injured site
- Made of AeroSpace™: lightweight, elastic 3D knitted fabric with high breathability and skin-friendly properties
Purpose of use- Inflammation of the calf muscles
- Overstressed or strained calf muscles
- "Tennis leg" (gastrocnemius tear)
- Calf contusions
Sizes (calf circumference)S — 33-35 cm (13-13.7 in) — see measuring diagram
M — 35-38 cm (13.7-15 in) — see measuring diagram
L — 38-43 cm (15-16.9 in) — see measuring diagram
XL — 43-48 cm (16.9-18.9 in) — see measuring diagram
Materials / TechnologyAeroSpace™: innovative 3D knitted fabric composed of two facing layers with interlacing that creates thickness and relieving properties. Made of polyester yarn and spandex for mechanical strength, flexibility, high breathability, low weight and skin comfort. Provides compression and reduces muscle vibration without significantly changing joint temperature.
AirRubber II™: breathable, perforated elastic bands with unidirectional elasticity (lengthwise stretch only) that improve compression distribution, allow air flow and, under higher compression, provide a gentle massage effect; skin-friendly.
Technical specifications- Brand: 4sport
- Code: AS-PU-02
- Trade name: LOWER-EXTREMITY SUPPORT
- Model (trade designation): LOWER-EXTREMITY SUPPORT
- Total length of the product: 25 cm (9.8 in)
- Materials: AeroSpace™ (sleeve), AirRubber II™ (bands)
- Device classification: Class I medical device
- Anatomic fit: usable for right and left leg