Progressive Muscle Relaxation (PMR) Coach

Muscle tension can become so familiar that it is noticed only after the jaw aches, the shoulders rise, or the hands stay clenched. Progressive muscle relaxation (PMR) makes the contrast easier to recognize by moving through the body deliberately: tense one region briefly, release it, and notice the difference before continuing.

The contraction is a cue for awareness, not a test of strength. Gentle, comfortable effort is enough to create contrast. Relaxation normally lasts longer than tension because the purpose is to feel the release rather than to accumulate muscular work. Breathing should remain easy throughout the sequence.

Body map

An ordered set of regions that prevents attention from jumping randomly around the body.

Tense phase

A brief contraction of the current region that does not cause pain.

Relax phase

The longer release period used to notice the change in sensation.

Optional recovery

A release breath, quiet rest, or body scan added after relaxation before the next region.

A full routine separates left and right limbs and visits more regions. A shorter routine combines nearby areas or handles both sides together. Shorter is not necessarily less useful; it can make regular practice more realistic or avoid a region that should not be contracted. The best sequence is one that stays comfortable enough to finish without rushing.

PMR is one relaxation technique among breathing exercises, guided imagery, meditation, and other attention practices. It may be used for general stress management or settling before sleep, but a timed routine cannot measure relaxation depth, force, anxiety, sleep quality, or treatment response. An effort label reflects intention only.

Pain, cramping, breath-holding, dizziness, panic, or distress is a reason to stop or switch approaches. Skip injured, recently operated, cramped, or medically sensitive areas. Relaxation practices should not replace medical or mental-health care or delay help for a health problem.

How to Use This Tool:

Choose a comfortable body map and pace before starting, with longer recovery rather than stronger contraction when more settling time is needed.

1. Select Body-map preset and Side handling. Split sides create separate left and right steps for paired regions; both-together mode shortens the sequence.
2. Set Tense duration, Relax duration, and optional rest. Keep the tense phase brief and comfortable, and use the total routine time to check that the pace is practical.
3. Choose an Effort intention as a reminder only. It does not change the schedule or measure how hard a muscle contracts.
4. Add a preparation countdown, release breath, or body scan only when those phases help the routine. Check Practice guide and Body map before starting.
5. Press Start and follow the current region and phase. Pause for an interruption, skip an uncomfortable area, or stop rather than pushing through pain or distress.

Interpreting Results:

Planned routine measures the repeated body-region phases. Start to finish also includes the preparation countdown. A larger recovery share means more time is assigned to relax, release, rest, or scan phases; it does not prove a deeper relaxation response.

The body map is the intended sequence, while the run log records phase changes that actually occurred in the current run. Skipping a phase shortens lived practice without rewriting the original plan. Use the log for recall, not as a clinical record.

Audio, speech, vibration, and the animated ring are cues. If a device does not support one of them, the visual labels and remaining time still carry the schedule. Cue pitch, cue length, and visual easing never change phase duration.

Technical Details:

The selected preset first expands into an ordered body map. Symmetric regions create separate left and right steps in split mode; central regions remain single steps. Both-together mode assigns one step to each symmetric region.

Transformation Core

Every step always contains tense and relax phases. Release breath, rest, and body scan are appended in that order only when their durations are greater than zero.

Formula Core

Let t be tense seconds, r relax seconds, e release-breath seconds, b rest seconds, and s scan seconds. Per-step phase time q is their sum.

For n body-map steps and preparation countdown c, routine time and full run time are:

For example, Standard 16 with split sides, 7 seconds tense, 20 seconds relax, and 5 seconds rest has 32 seconds per step. The routine is 16 × 32 = 512 seconds, or 8 minutes 32 seconds. A 3-second preparation countdown makes the full run 8 minutes 35 seconds.

Tense accepts 1 to 30 whole seconds, relax 1 to 60, rest 0 to 30, release breath 0 to 20, body scan 0 to 30, and preparation 0 to 60. Recovery seconds equal all relax, release, rest, and scan time across the body map. Percent displays are derived from the unrounded second totals.

The custom preset currently uses the same ten base regions as Standard 16; it does not provide a user-defined region editor. Effort intention, cue configuration, vibration, screen wake, and visual easing do not participate in the timing equations.

Responsible Use:

Relaxation techniques are generally considered safe for healthy people, but unwanted reactions can occur and deliberate contraction is not suitable for every body region or condition.

• Keep every contraction comfortable and continue breathing; strength or discomfort is not a success measure.
• Skip a painful, injured, recently operated, cramped, or medically sensitive area.
• Stop if anxiety, intrusive thoughts, panic, dizziness, or distress increases.
• Ask a qualified health professional about PMR when a heart condition, significant pain, trauma history, or other health concern could affect safe practice.

References:

• Relaxation Techniques: What You Need To Know, National Center for Complementary and Integrative Health.