FND Education Project

REFERENCE · RECOVERY TECHNIQUE

Posture, Alignment and Movement-Pattern Adjustment for Functional Tremor

Most likely fit: Tremor appears or becomes more disruptive in a repeatable position—such as gripping with the wrist extended, elevating the shoulder, leaning onto the forefoot or standing with uneven weight—and a less effortful alignment changes it enough to begin a task. [Clinical consensus]

Not the same as: Claiming that “bad posture” caused FND, forcing the body into one ideal alignment or immobilizing the affected part. The useful adjustment is individualized, functional and temporary enough to support movement.

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What this technique does

A tremor may be linked to a particular way of holding or loading the body. A small change—supporting the forearm, loosening a hard grip, shortening the reach, placing both feet evenly or shifting the hips before moving—may reduce the work required to stay in that position. The new setup becomes a starting point for an ordinary action.

The purpose is not to locate a perfect posture or keep checking every joint. It is to find one safer, easier organization that lets you pour, type, stand, walk or complete another chosen activity.

Anatomy in everyday language

Holding the arm away from the body increases the lever arm (the distance that makes muscles work against gravity). The upper trapezius and levator scapulae can elevate the shoulder blade, while the serratus anterior and lower trapezius help position it against the rib cage. Forearm support can reduce demand on these muscles and on the deltoid and rotator cuff. At the hand, extreme wrist extension or a forceful grip can increase activity across wrist and finger flexors and extensors.

In standing, weight distribution depends on the trunk, pelvis, hips, knees and feet. Staying heavily on the forefoot increases demand through the calf complex—the gastrocnemius and soleus (muscles at the back of the lower leg). Moving pressure toward a more even foot contact may change a position-dependent leg tremor.

What practice may look like

  1. Identify one posture or task in which tremor reliably interferes.
  2. Make the task safe before changing position; sit or use support if balance is uncertain.
  3. Trial one adjustment: support the forearm, bring the object closer, soften the grip, lower the shoulder, widen the base of support or redistribute weight.
  4. Keep the adjustment only if function, comfort or control improves overall.
  5. Complete a short task while looking at the result rather than maintaining an exact body pose.
  6. Gradually reduce special supports when that serves the goal; retain useful adaptations when they improve access.

Do not force a painful joint into neutral. “Good alignment” is not one shape for every body. Hypermobility, arthritis, dystonia, injury and other conditions may require different positioning.

Lower-limb tremor and weight shift

With clinician supervision, a person whose leg tremor appears in standing may practise gentle side-to-side or forward–back weight transfer, then gradually make the shift smaller toward quiet standing. This should start with an appropriate support and falls plan. It is not suitable as an unsupervised test when knees buckle, consciousness changes or the cause of shaking is uncertain.

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Help position the chair, object or agreed support. Ask before touching the shoulder, arm, pelvis or leg. Use one practical cue such as “bring the cup closer” rather than a stream of corrections about posture. Do not pin the limb, brace it by force or remove a support to test independence.

For the Person With FND
For Family, Friends, and Other Supporters
For Clinicians and the Care Team
Research and Sources —

For Clinicians and the Care Team

Selection and baseline

Map the activation condition: rest, posture, action, loading, grip, stance or a particular joint angle. Record tremor distribution and function with the ordinary setup. Examine musculoskeletal pain, range, instability, dystonic posturing, rigidity, spasticity, weakness and sensory loss where relevant; do not attribute every position-dependent tremor to FND.

Anatomical and biomechanical analysis

For upper-limb tremor, assess scapulothoracic orientation, glenohumeral position, elbow support, forearm rotation, wrist angle, grip force and lever length. Look for unnecessary proximal fixation, but do not assume it is causal. For lower-limb tremor, assess centre-of-mass position, pelvic alignment, hip and knee strategy, ankle plantarflexor loading and plantar pressure distribution. Translate the change: “Supporting your forearm reduces the work at your shoulder so the hand can practise the task,” or “We are moving pressure away from the front of your feet while both legs remain available.”

Explicit treatment sequence

  1. Define the functional problem and record the baseline task, pain, support and tremor activation condition.
  2. Alter one biomechanical variable at a time—lever length, contact surface, joint angle, grip, proximal support or weight distribution.
  3. Compare the whole outcome: task completion, movement ease, pain, fatigue, balance and tremor interference.
  4. Select the least restrictive useful position. Pair it immediately with an external-focus task.
  5. Reduce verbal and manual correction. Allow normal variability rather than demanding a rigid posture.
  6. Progress by varying the task and fading only those supports that are no longer useful.
  7. Document enduring adaptations separately from temporary retraining cues.

Progression, regression and measures

Regress by sitting, increasing proximal support, shortening the lever, reducing load or range and simplifying stance. Progress by decreasing support, increasing reach or task complexity, transferring to standing or walking when safe and practising across environments.

Measure task reliability, support, pain, perceived effort, standing tolerance, weight-transfer control and falls/near-falls. Complete tremor absence is not required for functional progress.

Safety and evidence boundary

Avoid forced end-range positioning, prolonged bracing and unguarded balance experiments. Reassess for pain, swelling, injury, joint instability or a new neurological pattern. Specialist consensus gives posture-change examples for upper- and lower-limb functional tremor, but direct trials have not isolated this component or defined a universal alignment. [1][2]

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For Family, Friends, and Other Supporters
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Research and Sources

Citation Full citation
[1] Nielsen G, Stone J, Matthews A, et al. Physiotherapy for functional motor disorders: a consensus recommendation. Journal of Neurology, Neurosurgery & Psychiatry. 2015;86(10):1113–1119. FND-CIT-0028. https://doi.org/10.1136/jnnp-2014-309255
[2] Bartl M, Kewitsch R, Hallett M, Tegenthoff M, Paulus W. Diagnosis and therapy of functional tremor: a systematic review illustrated by a case report. Neurological Research and Practice. 2020;2:35. FND-CIT-0019. https://doi.org/10.1186/s42466-020-00073-1

Detailed technique page created: September 11, 2026 · Clinical and accessibility review pending

For the Person With FND
For Family, Friends, and Other Supporters
For Clinicians and the Care Team
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