Hemiparesis, also known as one-sided weakness, is a disorder that affects almost all
the muscle movements on one side of the body.
It generally occurs following a stroke and
is one of the most common aftereffects, affecting 65% of stroke patients
. A stroke
affects the overall supply of oxygen to certain brain parts. If the affected brain parts
from stroke are responsible for handling muscle functioning and motility, it causes
hemiparesis. However, it could also result from brain injury, tumour multiple sclerosis,
brain infection, etc.
The following are the common signs or symptoms presented by patients suffering from hemiparesis:
Individuals suffering from hemiparesis have weakness or partial paralysis on one side of the legs, face, hands, feet and chest regions that causes issues in overall movements.
Suffering individuals might also experience numbness and fatigue in the affected areas.
The tone or reflexes of an individual could also be observed in affected patients.
In some instances, the individuals might face difficulty handling objects, incoordination of affected parts or disturbed balance.
Left hemiparesis is a type of hemiparesis which affects the body parts on the left side of an individual.
However, it is caused due to dtysfunctioning majorly to the right side of the brain.
A lack of oxygen supply that might be a result of a stroke that affects the functioning of
the right hemisphere of the brain causes weakness or paralysis on the left side portion of
the body. Individuals suffering from left hemiparesis might also have other symptoms
affecting attention, vision and emotional balance due to a defect in the brain's right hemisphere.
It is one of the most common types of hemiparesis. Right hemiparesis affects the body
parts located at the right of an individual. It is caused due to dysfunction on the left
side of the brain. As opposed to left hemiparesis, a lack of oxygen or injury in the
brain's left hemisphere majorly affects the functioning of the body parts on the right side.
Since the left hemisphere is involved in right hemiparesis, discrepancies in the affected
individual's verbal, reading and arithmetic ability might also be observed.
Weakness on One Side of the Body
Apart from the left and right hemiparesis, ipsilateral hemiparesis is the type of
hemiparesis that affects muscle weakness of body parts at the same amount of the body.
E.g., if the right side of the brain is affected through stroke or injury, then muscles to
the right of the body are impacted. This is one of the significant symptoms of hemiparesis.
It is caused due to a blockage in the arteries that cuts or lowers the blood supply to the
brain or dysfunction of specific brain regions. Since it impacts an entire side of the body,
it affects the ability to walk, sit and balance an individual. Muscle fatigue present at the
affected parts could cause a lack of coordination which decreases the precision of tasks like
holding or grabbing particular objects, decline in bowel or bladder control, which causes a
significant decrease in the overall quality of life.
Left Hemisphere Stroke
Stroke is a phenomenon where blood clot or turn blood vessels affects the general
supply of oxygen in the brain .
A low or no supply of oxygen in the left hemisphere
region of the brain is known as a left hemisphere stroke. It could not just cause right
hemiparesis but also affect the brain's basic logical skills, including the ability to
read, write, speak and calculate. One of the significant symptoms caused by left
hemisphere stroke is related to the discrepancies in language speaking ability of the
affected individual as the language centre of the brain is located in the left hemisphere.
Also, individuals might suffer memory loss, decreased problem-solving ability and other
Hemiparesis: Diagnosis and Treatment
Hemiparesis can be diagnosed through a physical examination conducted by a medical expert.
Imaging processes like MRI or CT scans could also help in diagnosing hemiparesis.
Hemiparesis most commonly impacts ankle and wrist regions whose positions could be
stabilized through resting hand splints and solid ankle-foot orthosis. The treatment
methodologies for hemiparesis mostly rely on the ability of the central nervous system to
re-heal itself back. Therefore, methods like the insertion of electrical or cortical
stimulation that helps advance movements by sending signals to the body parts and the brain
could improve the functioning of the weak or paralyzed body parts in hemiparesis.
Physical therapy techniques that aim to provide proper alignment, recognition of limbs,
promote weight balance, muscle tone reduction and elongation of muscle could be used to
treat hemiparesis. Also, occupational therapy, which is the ability to use the affected
body parts for daily activities like bathing, self-feeding and dressing subtly regularly,
could help improve the symptoms caused by hemiparesis. In mirror therapy, individuals
practice from the unaffected side by keeping a mirror in front could also help train the
brain to think that both sides are working, helping treat hemiparesis. Acupuncture and
massage also have a significant effect in treating hemiparesis.
Wist S. et. al. (2016). Muscle strengthening for hemiparesis after stroke: A meta-analysis. Annals of Physical and Rehabilitation Medicine, 59(2), pp. 114-124.
Retrieved 31 Oct 2022.
Who are the top experts researching treatments for hemiparesis?
[ PUBLICATION ] ... with hemiparesis has not been clarified. The purpose of this study was to determine the contribution of quasi-joint stiffness of the ankle joint to spatiotemporal and kinetic parameters ...
Known for Joint Stiffness | Patients Hemiparesis | Healthy Individuals | Aged Ankle
[ PUBLICATION ] ... with hemiparesis, characterization of the weight-bearing asymmetry is poorly and indirectly described. Therefore, this study aimed to describe weight-bearing distribution during upright ...
Known for Subjects Hemiparesis | Weight Bearing | Postural Control | Nonaffected Hemibody
[ PUBLICATION ] ... of hemiparesis differs between the 2 age groups. Lesion topography is an important predictor of hemiparesis after neonatal IS, but it is not known if the same topographic predictors of ...
Known for Magnetic Resonance | Cerebral Artery | Newborn Infarction | Motor Impairment
[ PUBLICATION ] ... of hemiparesis in chronic subdural hematoma, 38 patients with unilateral chronic subdural hematoma were studied on the relationship between their clinical manifestations and regional ...
Known for Chronic Subdural | Blood Flow | Regional Cerebral | Hemiparesis Patients
[ PUBLICATION ] ... with hemiparesis, yet their effect on postural control remains unclear. Thus, the objective of this study was to examine the effects of standard and quad canes on postural sway and on ...
Known for Walking Aids | Postural Sway | Patients Hemiparesis | Quad Cane
[ PUBLICATION ] ... with hemiparesis of short and long duration.
DESIGN: Within-subject random order of intervention, cross-sectional study design.
SETTINGS: Medical centres and district hospitals.
Known for Balance Performance | Subjects Hemiparesis | Foot Orthosis | Speed Cadence
[ PUBLICATION ] ... for hemiparesis has varied between 17% and 58% in samples of brain damaged patients with hemiparesis.
OBJECTIVE: To determine whether this wide variation might be explained by the ...
Known for Anosognosia Hemiparesis | Stroke Patients | Neurological Deficits | 80 Agnosia
[ PUBLICATION ] ... with hemiparesis is important to the development of rehabilitation approaches for these persons. The purpose of the present study was to investigate whether, and to what extent, persons ...
Known for Joint Coordination | Persons Hemiparesis | Motor Abundance | Control Hand
[ PUBLICATION ] ... with hemiparesis secondary to stroke. The purpose of this study was to evaluate dynamic postural control in patients with hemiparesis and in normal subjects matched for age.
Known for Postural Control | Strength Symmetry | Response Latency | Normal Subjects
[ PUBLICATION ] ... severe hemiparesis for more than 18 months. The 10 patients of the second group showed either no hemiparesis at all, or motor disturbance at the onset of the disorder with complete ...
Known for Global Aphasia | Cerebral Infarction | Language Tests | Test Aat