Helder 2 calf / Achilles protocol — 20 cm · 15 min per session · Body mode
DeviceHelder 2 (AriHelder)
Distance20 cm
ModeBody mode · full power
Duration15 min per session
FrequencyDaily or 5× / week
Wavelengths631 nm red · 856 nm NIR
✓ OHSP Verified
Verified output: 10.47W total — NIR 9,242 mW + Red 1,228 mW.
Independent integrating sphere measurement →
How to position the device
Attach to the arm mount. Position 20cm from the calf. For Achilles tendinopathy, target the posterior lower leg. For calf muscle, target the belly of the gastrocnemius.
1
Set up the device
Attach to the arm mount. Position 20cm from the calf. For Achilles tendinopathy, target the posterior lower leg. For calf muscle, target the belly of the gastrocnemius.
2
Select body mode
Set to body mode, full power. Verified output: 10.47W total — NIR 9,242mW (856nm) + Red 1,228mW (631nm).
3
Run the session
Hold position for 15 minutes. Wear eye protection. Repeat daily or 5 times per week.
Session guidance
For Achilles tendinopathy, target the tendon insertion point at the heel and the mid-tendon separately in alternating sessions. For calf strains, target the site of strain.
Safety & contraindications
Do not use over open wounds. Always wear eye protection. For acute Achilles rupture, do not use without medical clearance.
Frequently asked questions
20cm standard working distance for body mode.
For Achilles: target the posterior ankle and lower tendon. For calf muscle: target the belly of the gastrocnemius, higher up the leg.
15 minutes in body mode, daily or 5 times per week.
10.47W total — OHSP verified. NIR (856nm): 9,242mW. Red (631nm): 1,228mW.