Shoulder Tracking: Improve Your Posture with Rectify

Quick Take

• Rectify gives you a personal cue when your posture changes during the day.
• You set your own relaxed reference posture.
• The goal is not constant tension. It is to notice sooner, reset, and move.

You know the moment: at the start of a meeting, you are sitting upright. Half an hour later, you are closer to the screen, your head has drifted forward, and your shoulders feel heavy. You often notice only when you stand up.

That is where shoulder tracking helps. Rectify turns the general advice "pull your shoulders back" into a personal reminder. The app uses your own reference posture and gives you vibration feedback when you stay away from it for a while.

Shoulders forward? The value of feedback

Posture often changes gradually. While typing, you slide closer to the laptop. During a video call, your upper body sinks a little. While waiting or walking, you organize your body differently again. That is normal. The value is noticing the change earlier.

Studies on wearable feedback show that a short cue can support attention and movement in a specific situation. How well it works depends on the task, the setting, and the feedback design [1][2]. That is why Rectify works best as a learning aid, not as a rigid posture brace.

How the shoulder focus works

1. Put on the sensor: Wear it securely and start the shoulder focus in the app.
2. Set your reference: Take an upright posture that feels calm and natural. You do not need to push your chest out or pull your shoulders hard back.
3. Choose the situation: Activate the focus for sitting or for standing and walking, depending on your day.
4. Watch the feedback: The live view shows your shoulder score and its trend. You can adjust sensitivity so the cues remain actionable.

You can start with a short session or keep the focus running longer. The app waits for a sustained change instead of reacting to every small movement.

Improve posture in everyday life

A vibration is not an instruction to hold yourself rigid. It is a quick check-in. Keep your response simple:

1. Relax your shoulders and notice how you are sitting or standing.
2. Reorganize your back and screen position without adding tension.
3. Reset your feet, change your sitting position, or stand up briefly.
4. Take a few steps or continue the task while standing.

This turns vibration feedback into a small body-awareness exercise. You are not training to hold one perfect pose all day. You are training to notice changes sooner and move between positions more freely.

What to expect realistically

A posture tracker can help make unnoticed patterns visible. It does not make every decision for you. Reviews report short-term effects from wearable feedback, while longer-term changes in real life remain less clear [1][2].

The shoulder score is therefore an orientation value for upper-back posture, not a medical diagnosis. Posture is also only one part of wellbeing. Research does not support one simple posture formula for symptoms [3]. Movement, breaks, and a workstation that fits you matter too. If symptoms persist or are severe, professional assessment is the right next step.

Your simple starting point

Try the shoulder focus in one clear situation, such as 20 minutes of laptop work, a longer drive, or a walk:

• Put on the sensor securely.
• Set a relaxed reference posture.
• Choose the sitting or standing/walking focus that fits.
• Adjust sensitivity so a cue remains useful.
• When it vibrates, reset gently and move briefly.

Open Rectify and see whether shoulder tracking helps you notice your upper-back posture earlier. The best next step is not to sit even straighter. It is to change positions more deliberately.

Sources

1. Lee R, James C, Edwards S, Skinner G, Young JL, Snodgrass SJ. Evidence for the Effectiveness of Feedback from Wearable Inertial Sensors during Work-Related Activities: A Scoping Review. Sensors. 2021;21(19):6377. DOI: 10.3390/s21196377. PMC8512480.
2. Battis A, Norrie JP, McMaster H, Beaudette SM. Wearable technology mediated biofeedback to modulate spine motor control: a scoping review. BMC Musculoskelet Disord. 2024;25:770. DOI: 10.1186/s12891-024-07867-3. PMC11446096.
3. Alsubaie AM, Mazaheri M, Martinez-Valdes E, Falla D. Is movement variability altered in people with chronic non-specific low back pain? A systematic review. PLoS One. 2023;18(6):e0287029. DOI: 10.1371/journal.pone.0287029. PMC10266636.