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Summary rehab technology: body weight supported, robotic & VR

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Samenvatting van de les body weight supported, robotic & VR during gait rehab gegeven door prof E. Swinnen van het vak rehab technology. Het is een samenvatting van de slides van de powerpoint en extra genoteerde items van tijdens de les. De slides waren in het Engels en mijn eigen notities zijn s...

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  • 17 décembre 2023
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  • 2023/2024
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Rehab tech:swinnen:bodyweight supported,robotic&VR
applications rehab
BRUBOTICS OVER 120 RESEARCHERS
 Working across boundaries
- A joint initiative of 9 research groups of the VuB collaborating on topic of
Human-Centered Robotics

 Fully-equipped movement analysis lab with EKSO NR system




 Gait training/rehabilitation is different for different types of neurological patients and depends on the
severity of the disorder / limitations of the patients
 For example:
- Parkinson gait training versus Stroke gait rehabilitation
- Multiple Sclerosis, Spinal Cord Injury, Cerebral Palsy,…

GAIT TRAINING
TYPES OF GAIT TRAINING

 Overground training
- Kan met rollator gedaan worden
 Overground training with body weight support
- P in system ermee wandelen
 Overground training with robot-assistance (exoskeleton devices)
- Wandelen met exoskeleton
 Treadmill training
- Soms makkelijker voor P
 Treadmill training with body weight support
 Treadmill training with robot-assistance (exoskeleton devices / end-effector devices)

CASUS
 Mrs. De Vries is a 76-year-old retired woman who used to be a saleswoman. She is an active lady who
loves walking with her dog, visiting her friends and dancing with her husband. On Tuesday, September 5,
2019, Mrs. de Vries had agreed to meet a friend at 10 am. Her husband had left early that morning for the
local market. However, Mrs. de Vries did not show up and her friend became worried. During her lunch
break (around noon) her daughter went to see her mother and found her lying on the ground in the
kitchen. Around the same time, Mr. De Vries also returned home. Mrs De Vries lay unconscious on the
floor and there was an unpleasant smell in the kitchen. The daughter immediately called an ambulance,
after which Mrs. de Vries was taken to the nearest hospital. There she first went to the intensive care unit,
after which a surgical thrombectomy was performed (left cerebral artery area). Subsequently, Mrs. de
Vries was transferred to the stroke unit at the Neurology department.
- Ze was een actieve persoon
- We weten niet hoe lang ze er heeft gelegen -> time window?




Nala Melis Pagina 1

, Rehab tech:swinnen:bodyweight supported,robotic&VR
applications rehab


STATUS 5 DAYS POST STROKE

 ROM: normal left and right
 Muscle strength
- Right arm: proximal 2/5, distal 2/5
- Right leg: global 2/5
- Kracht R is afgenomen
 Gait pattern: patient needs firm continuous support from therapist (FAC 1)
- FAC1= Veel assistentie nodig om gewoon te kunnen staan en een beetje te stappen
niet onafhankelijk
 Motricity Index: Upper limb 39/100 ; Lower limb 37/100
 Berg Balance Scale: 6/56
- Balans problemen
 Trunk control test: 62/100
 Barthel Index: 46/100 (ADL)
- Ze is niet afhankelijk maar ook niet volledig onafhankelijk
- Zelfzorg is mogelijk
- ADL problemenniet onafhankelijk
 No spasticity
 No sensory problems

 Request for help: Mrs de Vries hopes that in the future she will no longer be dependent on others (for ADL
and hygiene)

 Could body weight supported and/or robot-assisted gait training be useful for this patient?
- BWS kan ervoor zorgen dat ze recht kan staan en ze zich veilig voelt
- now in the acute phase? Eerst kracht opbouwen voordat we met BWST gaan beginnen
- later in the subacute or chronic phase?


HOW CAN WE INCREASE THE EFFECT OF NEUROREHABILITATION?




APPLIED TO GAIT TRAINING
kan allemaal bereikt worden met robotica
 Task-specific training
- We need to walk
 High intensity training with a high number of repetitions
- We have to train a lot, mainly everyday
 Goal-oriented training
- Independent walking
 Differences in suspension-system (1 point, 2 points,…)
- CASUS: first 2 (more support) and later 1 point (more rotations possible)
3 TOPICS
- 1point: important for rotations of shoulders and pelvis
BODY - WEIGHT
≠in stabiliteit
SUPPORT SYSTEMS
- ≠ in ROM(rotaties,..)
- 1 punt:
 Rotatie ook mogelijk

Nala Melis Pagina 2

, Rehab tech:swinnen:bodyweight supported,robotic&VR
applications rehab

- 2punt:
 Meer stabiliteit
 Beperkter in bewegen
 Differences in harness (sizes, straps,…)
- Pathologie afhankelijk
 Differences in suspension type (static, passive, dynamic, …)
- Bij wandelen COM +/- altijd hetzelfde
 System gaan hierbij helpen

1. EXAMPLES OF SYSTEMS
 Biodex-system
- 1 suspension and not so heavy
- T kan gaan zitten
 Zero G system
- System in the ceiling, without a frame
- Different exercises, very safe -> good system!
 Andago-system
- Very expensive, not often used in practice
- Interesting: sensors in system and the systems follows the P without help of the T
- System volgt P tijdens wandelen
 Litegait-system

2. BWS GAIT TRAINING
 Advantages:
- ↓ compensatory strategies (↑ symmetry)
 Meer functionelere gang
- ↑ walking speed, ↑ safety and ↓ fear / risk of falling
- Gait training even if the patient can no more/not yet walk
- Task-specific training with high number of repetitions (more steps)
 Disadvantages:
- Labor intensive for therapist (amount of staff + low at the ground)
 Therapist needs to assist the foot, knee or hip
- Sometimes not moveable
- BWS ⟩ 45 to 50% influence the walking pattern (toe-walking) and changes in thorax and pelvis
biomechanics
 BWS= body weight system
 Often a problem for the heel strike (sensitive information)
 Less rotation between pelvis and thorax
 studies
o Harness: ↓ vertical acceleration (Aaslund 2008)
o BWS: ↓ acceleration in 3 directions (Aaslund 2008), ↓ inter-segmental coordination thorax
pelvis (Pintér 2006), ↓ amplitude muscle activity (Finch 1991, Swinnen 2014)
 Risico starten in hog level BWS
- P hangt gewoon in syst
 Je wilt dat P wandelt met normale gang
 Optimal setting? Often: 30 to 40% of the body weight at a low walking speed (0,1 tot 0,3 m/s) and
increase
 gait speed, walking distance, duration, and reduce body weight support to 0%

3. EFFECTIVITY
3.1. STROKE
 People after stroke who receive treadmill with or without BWS are not more likely to improve their ability
to walk independently compared with people after stroke not receiving treadmill training, but walking
speed and walking endurance may improve.
 Specifically, stroke patients who are able to walk (but not people who are not able to walk) appear to


Nala Melis Pagina 3

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