Chronic Parkinsonism - Rehabilitation (Akinesia-Dominant Presentation)

Clinical Picture First: What's Going On?

• Idiopathic Parkinson's disease (rigidity may be mild/absent early or in some subtypes)
• Atypical parkinsonism (MSA-P, PSP) - always consider if levodopa response is poor
• Advanced PD where rigidity has fluctuated

Rehabilitation Framework

1. Physical Therapy (PT)

Important: Without an ongoing formal exercise program, gains are lost within 6 months. - Bradley and Daroff's

• Visual floor cues (lines/targets on the floor)
• Auditory cues (metronome or music beat)
• Attentional strategies ("step over the line")
• Treadmill and gait-specific training improves cadence, step length, and speed - Bradley and Daroff's

2. Speech and Language Therapy (SLT)

"LSVT has been developed to treat hypofunctional dysphonia associated with Parkinson's disease. The aim is to alter phonatory effort and 'recalibrate' the patient's perception of effort and loudness levels in speech. SLTs encourage patients to 'think loud', and provide feedback with a decibel meter during repetitions of loud sustained vowels and other speech tasks."

• Scott-Brown's Otorhinolaryngology

• Structure: 4 sessions/week x 4 weeks (intensive individual sessions)
• Home practice between sessions
• Improves clarity, speech intelligibility, and prosody with long-term effects
• Also improves breath support for speaking - Bradley and Daroff's
• Contraindicated in hyperfunctional dysphonia

• Pacing boards and delayed auditory feedback
• Expiratory muscle strength training (EMST) to improve breath support
• Swallowing exercises if dysphagia is present (very common - 35-82% of PD patients)
• Drooling management (biofeedback, oral motor exercises)

3. Occupational Therapy (OT)

• Practice of skilled movements (e.g., buttoning) - studies show speed improvement with more repetitions
• Environmental modification (grab bars, non-slip surfaces, raised toilet seat)
• Adaptive equipment for writing, eating, dressing
• Energy conservation strategies
• Home safety assessment and fall prevention

4. Facial / Hypomimia Rehabilitation

• Facial expression exercises - practicing exaggerated facial movements in mirror
• LSVT BIG (analogous to LSVT LOUD but for motor amplitude) - trains larger, more exaggerated movements throughout the body including face
• Communication training - written/visual aids to supplement reduced facial expressiveness
• OT input for social participation adaptations

5. Multidisciplinary and Psychosocial Components

• PD support groups - invaluable for education and community support - Kaplan & Sadock's
• Emotional support - anxiety is an integral part of the disease in many patients; formal psychological support if needed
• Inpatient intensive rehab (for advanced cases): A 4-week inpatient crossover study showed quality of life improved for at least 3 months post-intervention with possible gains in motor skills - Bradley and Daroff's
• Cognitive exercise - bradyphrenia (slowed thinking) should be anticipated; brain training and social engagement

6. Pharmacological Context for Rehab Timing

Recent Evidence (2023-2024 Systematic Reviews)

Summary of Rehab Goals by Symptom

Physiotherapy Rehabilitation in Parkinson's Disease - Detailed

Core Principle: Why Physio Works

• Upregulates BDNF, GDNF, TrkB - neurotrophic support for dopaminergic neurons
• Increases TH (tyrosine hydroxylase) and DAT expression in the nigrostriatum
• Inhibits α-synuclein aggregation and reduces neuroinflammatory cytokines (IL-1β, TNF-α)
• Decreases neuronal apoptosis via BAX/Bcl-2 and caspase pathways

"Regular aerobic exercise has a positive disease-modifying effect." - Neuroanatomy through Clinical Cases, 3rd Ed.

Assessment First: What to Measure Before Starting Rehab

1. GAIT TRAINING

A. Treadmill Training

• A 2025 systematic review (Yin et al., PMID 40606144) confirms treadmill training significantly improves gait speed, stride length, and cadence in mild-to-moderate PD
• Body-weight support treadmill training (BWS-TT) ranked #1 for improving Berg Balance Scale and dynamic steady-state balance across 24 exercise types (Qian et al. 2023, PMID 37641007)
• Start at comfortable speed; progressively increase duration and speed
• Can incorporate inclines for added challenge

• 3 sessions/week, 20-40 min/session
• Start at 80% comfortable walking speed
• Progress by 10% every 2 weeks if tolerated

B. Rhythmic Auditory Stimulation (RAS) / Cueing

• Motor examination (SMD -0.61)
• TUG test (MD -0.91 seconds)
• ADLs (SMD -0.49)
• Balance (SMD 0.59)
• Walking velocity, step length, stride length

• 10 weeks of intervention gives better results

• Note: does NOT significantly improve freezing of gait directly

• Use a metronome (app or device) set to 10% above the patient's natural cadence
• Music with consistent beat (120-130 bpm typical)
• Verbal counting or clapping rhythm
• Patient learns to synchronize heel strike to beat
• Visual cues: floor lines (tape strips at desired stride length), laser cane pointer, walking poles

C. Overground Gait Training

• Large amplitude stepping drills ("march like a soldier")
• High-knee walking to overcome shuffling
• Turning practice (turning in small spaces is a frequent freeze trigger)
• Dual-task walking (e.g., walking while counting backward) - improves automatic gait

2. FREEZING OF GAIT (FOG) - SPECIFIC STRATEGIES

• Floor tape/laser lines to step over
• Laser cane (projects a red line on the floor 50 cm ahead)
• Visual target focus ("aim for that tile")

• Metronome click to restart stepping
• Counting out loud ("1-2-3-step")
• Mental imagery: "march" or "step over a log"

• Weight shift to one side to "unload" the freezing leg
• Step backward first, then forward
• "Cognitive bypass" - mentally override automatic gait loop

• Remove rugs, thresholds, clutter
• Widen doorways where possible
• Avoid high-risk settings during "off" periods

"Auditory and visual cueing strategies may be used to overcome freezing." - Harrison's Principles of Internal Medicine 22E

3. BALANCE AND POSTURAL STABILITY TRAINING

A. Perturbation-Based Balance Training (PBT)

• Best evidence for improving reactive balance (RB)
• Involves unexpected perturbations: sudden platform tilts, treadmill belt accelerations/decelerations, physical pushes
• Trains automatic postural responses (the exact response deficient in PD)
• 2022 systematic review (Coelho et al., PMID 35550488) supports PBT for postural control and gait in PD

B. Static Balance Exercises

• Single-leg stance (progress from eyes open → eyes closed → foam surface)
• Tandem stance and tandem walking
• Standing on foam/balance boards
• Aquatic exercise (AQE) - ranked #1 for static steady-state balance improvement (Qian et al., 2023)

C. Dynamic Balance Exercises

• Step-and-reach tasks
• Obstacle course navigation
• Ball catching/throwing while standing
• Functional reach training

D. Pilates

• Ranked #1 for proactive balance in the network meta-analysis of 24 exercise types
• Builds deep core stability and trunk control - critical because PD causes axial muscle bradykinesia and flexed posture
• 2x/week sessions, focus on spinal extension and pelvic stability

E. Tai Chi

• Specifically shown to improve balance and reduce falls in mild-to-moderate PD by objective criteria - Adams and Victor's Principles of Neurology, 12th Ed.
• 24-step modified Tai Chi preferred
• 3x/week, 45-60 min sessions
• Improves weight shifting, rotational movement, and attentional focus

4. STRENGTH AND RESISTANCE TRAINING

• A meta-analysis by Yang et al. 2023 (PMID 37070664) found strength training effectively improves motor symptoms on MDS-UPDRS
• Focus areas: hip extensors, knee extensors (quads), gluteals, shoulder girdle, trunk extensors
• Anti-gravity muscles are priority - they counteract the flexed/stooped posture
• Recommended: 2-3x/week, 2-3 sets of 10-15 reps, progressive resistance
• Resistance bands, bodyweight, free weights, or machines all appropriate

• Power training (explosive intent even if slow output) - trains fast-twitch motor units
• Eccentric loading (slow lowering phase) for muscle activation in akinesia
• Sit-to-stand repetitions (highly functional - improves initiation of movement)

5. AEROBIC / CARDIOVASCULAR EXERCISE

• Moderate-intensity aerobic exercise (60-80% max HR) is the most neuroprotective modality
• Mechanisms: increases BDNF in substantia nigra, improves dopamine sensitivity, reduces neuroinflammation
• Options: cycling (stationary bike excellent - avoids fall risk), swimming, elliptical, brisk walking
• Forced cycling (externally paced above voluntary rate) may be superior to voluntary cycling for PD motor improvement
• Minimum: 150 min/week moderate intensity (AHA recommendation)
• Dance therapy (especially tango, waltz) provides rhythm, social engagement, and aerobic benefit simultaneously

6. MIND-BODY EXERCISE (Highest Evidence for Motor Symptoms)

• Tai Chi - rhythm, slow controlled movement, rotational weight shifts
• Yoga - flexibility, breathing, body awareness, proprioception
• Qigong / Baduanjin - recent meta-analysis (Lai et al. 2022, PMID 36379643) shows improvements in motor function, balance, and gait
• Dance/Rhythm movement - tango particularly studied; addresses rhythm, dual-tasking, spatial cognition

7. POSTURE AND FLEXIBILITY TRAINING

• Chest and anterior shoulder stretching - doorframe stretch, foam roller thoracic extension
• Hip flexor stretching - kneeling lunge
• Cervical extension - chin tucks, cervical retraction
• Thoracic rotation - seated or standing trunk twists
• Hamstring and calf stretching - prevents stooping and shuffling

• Mirror feedback during standing
• Wall standing (head, shoulders, buttocks, heels against wall)
• Chin tuck exercise for forward head posture
• Taping techniques to promote spinal extension proprioception

8. UPPER LIMB AND FINE MOTOR TRAINING (LSVT BIG Approach)

• Based on the same principle: train exaggerated, high-amplitude movements to compensate for bradykinesia's reduced movement output
• Patients practice making movements bigger than they feel necessary - recalibrates the internal sense of movement amplitude
• 16 sessions over 4 weeks (4x/week), intensive individual sessions + daily home exercise
• Improves UPDRS motor scores, walking speed, and balance

• Large arm swings during walking
• Overhead reaches, wide-arc arm circles
• Finger tapping and opposition drills at maximum speed
• Writing exercises (macrographia drills to counter micrographia)
• Ball throwing and catching

9. OCCUPATIONAL CROSSOVER - FUNCTIONAL TASK TRAINING

• Rising from a chair: use armrests, lean forward ("nose over toes"), explosive push - can be trained with repetitions
• Rolling in bed: log roll technique, using bed rail
• Turning in bed: sequence of steps taught explicitly to bypass automatic initiation failure
• Stair climbing: one step at a time, rail use; auditory counting helps initiation
• Dual-task practice: walk + carry tray, walk + talk, to improve cognitive-motor integration

10. SESSION TIMING: "ON" STATE PRINCIPLE

• Bradykinesia is at its minimum
• Initiation is easiest
• The patient can execute higher-quality, larger-amplitude movements
• Motor learning is most effective

Programme Structure Summary

"Without an ongoing formal exercise program, gains were lost 6 months later." - Bradley and Daroff's Neurology in Clinical Practice

Home Programme (Non-Negotiable)

1. 10 min morning stretching (chest, hips, trunk rotation)
2. 20-30 min aerobic activity (walking with metronome, cycling)
3. 10 min balance exercises (single leg, tandem)
4. LSVT BIG amplitude drills (big arm swings, large steps)
5. Cueing practice for any freezing triggers in the home

Evidence Hierarchy Recap