Understanding Haptic Feedback from the SoterCoach Device

Purpose:
The SoterCoach device uses haptic feedback — beeps and vibrations — to coach workers in real-time when hazardous movements are detected. This guide explains what the feedback means and when it is triggered.

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🔊 What Is Haptic Feedback?

Haptic feedback is a gentle vibration and beep delivered by the device to alert the wearer that a potentially unsafe movement has occurred. The goal is to build awareness and promote safer movement habits over time.

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📍 When Does Feedback Occur?

Feedback is triggered after the movement is completed — when the worker returns to a neutral position. This avoids distraction mid-task and reinforces safer behavior for the next movement.

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🧍 Spine Program Feedback

Movement Type	Trigger Condition	Feedback
Poor bending	Forward bend >90°	1 short beep & vibration
Twisting while bending	Twist >30° + bend >50°	3 short beeps & vibration
Intense bending	Jerky, non-smooth bend	3 long beeps & vibration

📌 Note:
Awkward static posture and repetitive movements are analyzed in the dashboard but do not trigger real-time feedback.

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💪 Shoulder Program Feedback

Movement Type	Trigger Condition	Feedback
Arm elevation	Arm raised >90°	1 short beep & vibration
Unsafe pushing/pulling	Jerky motion with open shoulder	3 short beeps & vibration
Overexertion	Arm elevated >90° for >20% of shift time	3 long beeps & vibration

📌 Note:
Static elevation and repetitive movements are dashboard only — no beeps or vibration.

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🔇 No Feedback on Day 1

The first day of any program is a baseline day. No haptic feedback is given to allow for natural movement tracking and baseline comparison.