What is tremor?
Tremor is an involuntary, rhythmic muscle contraction leading to shaking movements in one or more parts of the body. It is a common movement disorder that most often affects the hands but can also occur in the arms, head, vocal cords, torso, and legs. Tremor may be intermittent (occurring at separate times, with breaks) or constant. It can occur sporadically (on its own) or happen as a result of another disorder.
Tremor is most common among middle-aged and older adults, although it can occur at any age. The disorder generally affects men and women equally.
Tremor is not life threatening. However, it can be embarrassing and even disabling, making it difficult or even impossible to perform work and daily life tasks.
What causes tremor?
Generally, tremor is caused by a problem in the deep parts of the brain that control movements. Most types of tremor have no known cause, although there are some forms that appear to be inherited and run in families.
Tremor can occur on its own or be a symptom associated with a number of neurological disorders, including:
traumatic brain injury
neurodegenerative diseases that affect parts of the brain (e.g., Parkinson's disease).
Some other known causes can include:
the use of certain medicines (particular asthma medication, amphetamines, caffeine, corticosteroids, and drugs used for certain psychiatric and neurological disorders)
alcohol abuse or withdrawal
liver or kidney failure
anxiety or panic.
What are the symptoms of tremor?
Symptoms of tremor may include:
a rhythmic shaking in the hands, arms, head, legs, or torso
difficulty writing or drawing
problems holding and controlling utensils, such as a spoon.
Some tremor may be triggered by or become worse during times of stress or strong emotion, when an individual is physically exhausted, or when a person is in certain postures or makes certain movements.
How is tremor classified?
Tremor can be classified into two main categories:
Resting tremor occurs when the muscle is relaxed, such as when the hands are resting on the lap. With this disorder, a person’s hands, arms, or legs may shake even when they are at rest. Often, the tremor only affects the hand or fingers. This type of tremor is often seen in people with Parkinson’s disease and is called a “pillrolling” tremor because the circular finger and hand movements resemble rolling of small objects or pills in the hand.
Action tremor occurs with the voluntary movement of a muscle. Most types of tremor are considered action tremor. There are several sub-classifications of action tremor, many of which overlap.
Postural tremor occurs when a person maintains a position against gravity, such as holding the arms outstretched.
Kinetic tremor is associated with any voluntary movement, such as moving the wrists up and down or closing and opening the eyes.
Intention tremor is produced with purposeful movement toward a target, such as lifting a finger to touch the nose. Typically the tremor will become worse as an individual gets closer to their target.
Task-specific tremor only appears when performing highly-skilled, goal-oriented tasks such as handwriting or speaking.
Isometric tremor occurs during a voluntary muscle contraction that is not accompanied by any movement such as holding a heavy book or a dumbbell in the same position.
What are the different categories or types of tremor?
Tremor is most commonly classified by its appearance and cause or origin. There are more than 20 types of tremor. Some of the most common forms of tremor include:
Essential tremor (previously also called benign essential tremor or familial tremor) is one of the most common movement disorders. The exact cause of essential tremor is unknown. For some people this tremor is mild and remains stable for many years. The tremor usually appears on both sides of the body, but is often noticed more in the dominant hand because it is an action tremor.
The key feature of essential tremor is a tremor in both hands and arms, which is present during action and when standing still. Additional symptoms may include head tremor (e.g., a “yes” or “no” motion) without abnormal posturing of the head and a shaking or quivering sound to the voice if the tremor affects the voice box. The action tremor in both hands in essential tremor can lead to problems with writing, drawing, drinking from a cup, or using tools or a computer.
Tremor frequency (how “fast” the tremor shakes) may decrease as the person ages, but the severity may increase, affecting the person’s ability to perform certain tasks or activities of daily living. Heightened emotion, stress, fever, physical exhaustion, or low blood sugar may trigger tremor and/or increase its severity. Though the tremor can start at any age, it most often appears for the first time during adolescence or in middle age (between ages 40 and 50). Small amounts of alcohol may help decrease essential tremor, but the mechanism behind this is unknown.
About 50 percent of the cases of essential tremor are thought to be caused by a genetic risk factor (referred to as familial tremor). Children of a parent who has familial tremor have greater risk of inheriting the condition. Familial forms of essential tremor often appear early in life.
For many years essential tremor was not associated with any known disease. However, some scientists think essential tremor is accompanied by a mild degeneration of certain areas of the brain that control movement. This is an ongoing debate in the research field.
Dystonic tremor occurs in people who are affected by dystonia—a movement disorder where incorrect messages from the brain cause muscles to be overactive, resulting in abnormal postures or sustained, unwanted movements. Dystonic tremor usually appears in young or middle-aged adults and can affect any muscle in the body. Symptoms may sometimes be relieved by complete relaxation.
Although some of the symptoms are similar, dystonic tremor differs from essential tremor in some ways. The dystonic tremor:
is associated with abnormal body postures due to forceful muscle spasms or cramps
can affect the same parts of the body as essential tremor, but also—and more often than essential tremor—the head, without any other movement in the hands or arms
can also mimic resting tremor, such as the one seen in Parkinson’s disease.
Also, the severity of dystonic tremor may be reduced by touching the affected body part or muscle, and tremor movements are “jerky” or irregular instead of rhythmic.
Cerebellar tremor is typically a slow, high-amplitude (easily visible) tremor of the extremities (e.g., arm, leg) that occurs at the end of a purposeful movement such as trying to press a button. It is caused by damage to the cerebellum and its pathways to other brain regions resulting from a stroke or tumor. Damage also may be caused by disease such as multiple sclerosis or an inherited degenerative disorder such as ataxia (in which people lose muscle control in the arms and legs) and Fragile X syndrome (a disorder marked by a range of intellectual and developmental problems). It can also result from chronic damage to the cerebellum due to alcoholism.
Psychogenic tremor (also called functional tremor) can appear as any form of tremor. It symptoms may vary but often start abruptly and may affect all body parts. The tremor increases in times of stress and decreases or disappears when distracted. Many individuals with psychogenic tremor have an underlying psychiatric disorder such as depression or post-traumatic stress disorder (PTSD).
Physiologic tremor occurs in all healthy individuals. It is rarely visible to the eye and typically involves a fine shaking of both of the hands and also the fingers. It is not considered a disease but is a normal human phenomenon that is the result of physical properties in the body (for example, rhythmical activities such as heart beat and muscle activation).
Enhanced physiologic tremor
Enhanced physiological tremor is a more noticeable case of physiologic tremor that can be easily seen. It is generally not caused by a neurological disease but by reaction to certain drugs, alcohol withdrawal, or medical conditions including an overactive thyroid and hypoglycemia. It is usually reversible once the cause is corrected.
Parkinsonian tremor is a common symptom of Parkinson’s disease, although not all people with Parkinson’s disease have tremor. Generally, symptoms include shaking in one or both hands at rest. It may also affect the chin, lips, face, and legs. The tremor may initially appear in only one limb or on just one side of the body. As the disease progresses, it may spread to both sides of the body. The tremor is often made worse by stress or strong emotions. More than 25 percent of people with Parkinson’s disease also have an associated action tremor.
Orthostatic tremor is a rare disorder characterized by rapid muscle contractions in the legs that occur when standing. People typically experience feelings of unsteadiness or imbalance, causing them to immediately attempt to sit or walk. Because the tremor has such a high frequency (very fast shaking) it may not visible to the naked eye but can be felt by touching the thighs or calves or can be detected by a doctor examining the muscles with a stethoscope. In some cases the tremor can become more severe over time. The cause of orthostatic tremor is unknown.
How is tremor diagnosed?
Tremor is diagnosed based on a physical and neurological examination and an individual’s medical history. During the physical evaluation, a doctor will assess the tremor based on:
whether the tremor occurs when the muscles are at rest or in action
the location of the tremor on the body (and if it occurs on one or both sides of the body)
the appearance of the tremor (tremor frequency and amplitude).
The doctor will also check other neurological findings such as impaired balance, speech abnormalities, or increased muscle stiffness. Blood or urine tests can rule out metabolic causes such as thyroid malfunction and certain medications that can cause tremor. These tests may also help to identify contributing causes such as drug interactions, chronic alcoholism, or other conditions or diseases. Diagnostic imaging may help determine if the tremor is the result of damage in the brain.
Additional tests may be administered to determine functional limitations such as difficulty with handwriting or the ability to hold a fork or cup. Individuals may be asked to perform a series of tasks or exercises such as placing a finger on the tip of their nose or drawing a spiral.
The doctor may order an electromyogram to diagnose muscle or nerve problems. This test measures involuntary muscle activity and muscle response to nerve stimulation.
How is tremor treated?
Although there is no cure for most forms of tremor, treatment options are available to help manage symptoms. In some cases, a person’s symptoms may be mild enough that they do not require treatment.
Finding an appropriate treatment depends on an accurate diagnosis of the cause. Tremor caused by underlying health problems can sometimes be improved or eliminated entirely with treatment. For example, tremor due to thyroid hyperactivity will improve or even resolve (return to the normal state) with treatment of thyroid malfunction. Also, if tremor is caused by medication, discontinuing the tremor-causing drug may reduce or eliminate this tremor.
आयुर्वेदाने वाताच्या बिघाडामुळे होणारे असे काही आजार सांगितले आहेत. ‘कंपवात’ हा त्यापैकीच एक विकार. हात, पाय कंप पावणे म्हणजेच ‘थरथरणे’ या स्वरुपात आढळणारा हा आजार कधी सौम्य तर कधी तीव्र स्वरूपामध्ये त्रास देतो.
लिहिताना हात कापणे, एखादी वस्तू पकडली असताना हात कापतो. चहाचा कप नीट स्थिर धरता न येणे, परीक्षेच्या वेळी किंवा इंटरव्ह्यूच्या वेळी मानसिक तणावामुळे किंवा भीतीमुळे हातातील कागदपत्र इत्यादी वस्तू कापणे. अतिराग किंवा चीड आल्याने, भांडणाच्यावेळी हातपाय कापणे, रात्रीच्या वेळी घाबरल्यामुळे देखील अंग कापणारे अनेकजण असतात. अतिमद्यपानाच्या परिणामी हातपाय कापतात. तसेच नियमित मद्य घेणार्यांनी अचानक मद्यपान बंद केल्यानेदेखील हातपाय कापू लागतात.
थोडक्यात मानसिक कारणे आणि कंपवात यांचा अगदी निकटचा संबंध आहे. ‘कापरे भरणे’ किंवा ‘थरकाप उडणे’ हे वाक्प्रचार देखील त्यामुळे प्रचलित झाले आहेत. मोठ्या आजारानंतर आलेल्या तीव्र अशक्तपणामुळे देखील हातपाय कापतात. रक्तदाब वाढल्यामुळे देखील अंग कापते. अतिकष्टाच्या कामानंतर थकवा आल्यानंतरदेखील परत काम करताना सुद्धा हातपाय कापतात. तीव्र भीती, चिंता काळजी यांची तीव्रता जास्त असताना निर्माण होणारा तात्पुरत्या स्वरूपाचा कंप हा विकृती असत नाही, पण अतिशय शुल्लक चिंता, काळजी किंवा भीतीमुळे जर कंप निर्माण होत असेल तर मात्र अशा वेळी उपचारांची निश्चित गरज असते.
वार्धक्यातील शरीरातील ‘वात’ जास्त प्रमाणात वाढलेला असतो आणि स्नायू नाड्या यांचे बलदेखील कमी झालेले असते. परिणामी काही लोकांमध्ये हात, पाय आणि डोके या तीनही ठिकाणी कंप हे लक्षण आढळते. काहीवेळा हा कंप एवढा जास्त असतो की माणूस नीट स्थिर चालूदेखील शकत नाही. पार्किसन्सच्या विकारामध्ये आणि लहान मेंदूमधील दोष, शिरोमिघात यांच्या परिणामीदेखील ‘कंपवात’ हा विकार आढळून येतो.
लेखनीकाचा कंप/रायटर्व्स क्रॅम्प :
कंपवाताशी साधारण साधर्म्य असणारा हा एक विकार आहे. सततचे लिखाण करणारे तसेच सतत पैसे मोजण्याचे काम करणारे कॅशियर्स यामध्ये बोटांवर येणार्या सततच्या ताणामुळे लिहायला सुरुवात केल्यानंतर बोटे दुखू लागतात, कोपरापासून हातही दुखू लागतो. लिहिण्याचा वेग मंदावतो, पेन धरण्याची अतिरिक्त ताकद लावावी लागते. लिहिताना काहीवेळ मध्ये थांबावे लागते. प्राथमिक स्वरूपात अशा लक्षणांनी सुरू होणार्या या विकारात काही काळानंतर हातातल्या वेदना जास्तच जाणवतात. अक्षरांचे वळण बिघडते, लिहिण्याची क्षमता व वेग मंदावतो, लिहिण्याच्या जोडीला पेन धरण्यासाठी देखील जादा ताकद लावावी लागते आणि नंतर पुढच्या अवस्थेत बोटातील ताकद आणखीनच कमी झाल्याने पेन धरताही येत नाही.
आयुर्वेदिक उपचार :
‘कंपवात’ हा एक वातविकार असल्याने आयुर्वेदीय पद्धतीने शास्त्रीय उपचार दिल्यास यावर नक्कीच चांगला उपयोग होतो. यामध्ये प्रामुख्याने शरीरातील मांस, मेद, मज्जा या धातूंची शक्ती वाढविणारे तसेच जोडीला मनोबल वाढविणार्या औषधी व आहाराचा वापर केला जातो. याच्याच बरोबर पंचकर्म उपचाराला देखील अतिशय महत्त्व आहे.
मसाज व शेक :
आयुर्वेदामध्ये सांगितलेल्या विविध वातशामक औषधांनी केलेल्या तेलाने शरीराला मसाज करणे, काही वेळा व त्यानंतर ‘पिंड स्वेद’ या प्रकाराने औषधीयुक्त भात व दूध यांच्या सहाय्याने शेक दिला जातो. बहुतांश रुग्णांमध्ये फक्त मसाज देखील उपयोगी पडतो. जो घरच्या घरी करता येतो. तीव्रता जास्त असल्यास बस्ती तसेच शिरोधारा ही पंचकर्म करावी लागतात. केरळीयन पद्धतीने गरम तेलाने मालिश करत शेकणे म्हणजेच पिडिंच्छीत हा उपचार विशेष उपयोगी पडतो.
औषधी उपचार :
वनस्पतीज औषधांपैकी बला, शुंठी, लाक्षा, शतावरी, कवचबीज, अश्वगंधा, दशमुळ, कुचला, एरंड, विदारीकंद, मुशली, ब्राह्मी, जटांमासी, शंखपुष्पी इत्यादी वनस्पती तर शृंगभस्म, सुवर्णमाक्षिक भस्म, रौप्य भस्म, सुवर्ण भस्म, नागभस्म, अभ्रकभस्म, त्रिवंग भस्म इत्यादी भस्मांचा व यांच्या एकत्रिकीकरणातून निर्माण झालेल्या औषधांचा वापर केला जातो.
आहार मार्गदर्शन :
आहारातील दूध, तूप, गव्हाचा शिरा, खीर, उडीदाचे घुटे, फळांपैकी आंबा, सफरचंद ही फळे कोहळ्याच्या वड्या, कोंबडी किंवा बोकडाचे मांस किंवा मटण, सूप, खजूर, बदाम, पिस्ता इत्यादीची खीर, डिंकाचा लाडू हे पदार्थ नियमितपणे घ्यावे.
हे लक्षात ठेवा :
वरीलप्रमाणे उपचार करीत असताना शारीरिक कष्टाची कामे, हाताच्या बाबतीत लिखाणाचे काम, जागरण काही काळापर्यंत जास्तीत जास्त टाळल्यास मांस स्नायू नाड्यांचे बल लवकर वाढते. तसेच ऊबदार कपडे वापरणे, विश्रांती यामुळे आजार लवकर बरा होतो. मानसिक चिंता, भय, काळजी इत्यादींच्या निराकरणासाठी प्राणायाम ध्यान धारणा यांचा उत्तम परिणाम मिळतो.
दुर्धर असा कंपवात उपचारांना अवघड असला, पूर्ण बरा होऊ शकत नसला तरीही आयुर्वेदीय उपचारांनी त्याचे प्रमाण अथवा त्रासाची तीव्रता निश्चितपणे कमी करता येते.
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