同: 手指屈筋反射

WordNet

search for on the computer; "I fingered my boss and found that he is not logged on in the afternoons"
the length of breadth of a finger used as a linear measure (同)fingerbreadth, finger''s breadth, digit
one of the parts of a glove that provides covering for a finger or thumb
any of the terminal members of the hand (sometimes excepting the thumb); "her fingers were long and thin"
feel or handle with the fingers; "finger the binding of the book" (同)thumb
indicate the fingering for the playing of musical scores for keyboard instruments
exhibit the strength of; "The victorious army flexes its invincibility"
the act of flexing; "he gave his biceps a flex to impress the ladies"
bend a joint; "flex your wrists"; "bend your knees" (同)bend
cause (a plastic object) to assume a crooked or angular form; "bend the rod"; "twist the dough into a braid"; "the strong man could turn an iron bar" (同)bend, deform, twist, turn
contract; "flex a muscle"
an automatic instinctive unlearned reaction to a stimulus (同)reflex response, reflex action, instinctive reflex, innate reflex, inborn reflex, unconditioned_reflex, physiological reaction
the placement of the fingers for playing different notes (or sequences of notes) on a musical instrument
touching something with the fingers
having or resembling a finger or fingers; often used in combination; "the fingered roots of giant trees"; "rosy-fingered"; "three-fingered cartoon characters"

PrepTutorEJDIC

(手の)『指』 / 指の形をしたもの;(手袋の)指;(メーターなどの)指針 / 指幅(びん入りの酒の量を測るときなど) / …‘に'指で触れる,‘を'指でいじる / 〈楽器など〉‘を'指でひく,つまびく
(仕事などを始める準備運動として)〈手足など〉‘を'曲げる,〈筋肉〉‘を'縮める
電線,電気のコード
反射(刺激に対する無意識の反応) / 《複数形で》反射的な動き / (光などの)反射,反射光;映像 / 反射性の / (カメラが)レフ鋼の,反射型の
指で触れる(いじる)こと / (弦楽器おひくときの)運指法;運指記号
指状の;指でいじられた / (楽譜が奏法を指示する)指印のついた

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2015/01/31 20:17:30」(JST)

wiki en

In medicine, Hoffmann's reflex, named after American neurologist Richard Hoffmann (born 1959, Pennsylvania),^[1] is a finding elicited by a reflex test which verifies the presence or absence of problems in the corticospinal tract. It is also known as the finger flexor reflex. The Hoffman reflex has also been used as a measure of spinal reflex processing (adaptation) in response to exercise training.^[2]

The test involves tapping the nail or flicking the terminal phalanx of the middle or ring finger. A positive response is seen with flexion of the terminal phalanx of the thumb.

Relation to Babinski sign

Hoffmann's reflex is often erroneously called 'the Babinski's sign of the upper limb'. However the two reflexes are quite different, and should not be equated with each other.

A positive Babinski sign is considered a pathological sign of upper motor neuron disease except for infants, in whom it is normal. Whereas, a positive Hoffmann's sign can be present in an entirely normal patient. A positive Hoffman's sign in the normal patients is more commonly found in those who are naturally hyper-reflexive (e.g. 3+ reflexes). A positive Hoffmann's sign is a worrisome finding of a disease process if its presence is asymmetrical, or has an acute onset.

Another significant difference between Hoffmann's reflex and the Babinski sign are their mechanism of reflex. Hoffman's reflex is a deep tendon reflex (spindle fibre) with a monosynaptic reflex pathway in Rexed lamina IX of the spinal cord. On the other hand, the plantar reflex is not a deep tendon reflex, and its pathway is both more complicated and not fully understood.^[3]

References

^ synd/1560 at Who Named It?
^ Zehr EP (2002). "Considerations for use of the Hoffmann reflex in exercise studies". EUROPEAN JOURNAL OF APPLIED PHYSIOLOGY 86 (6): 455–468. doi:10.1007/s00421-002-0577-5. PMID 11944092.
^ Walker, Kenneth (1990). Clinical Methods: The History, Physical, and Laboratory Examinations. 3rd edition.. Boston: Butterworths. pp. Ch 73: The Plantar Reflex.

External links

Cervical Spondylosis: Diagnosis and Management - emedicine.com
Hoffmann sign - Stedman's Dictionary
[1] link of the exam performed with a positive Hoffman's sign

UpToDate Contents

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1. 遠位指節間関節の屈筋腱の損傷（ジャージー指） flexor tendon injury of the distal interphalangeal joint jersey finger
2. 指、手、および手首の骨折の概要 overview of finger hand and wrist fractures
3. 成人における詳細な神経学的検査 the detailed neurologic examination in adults
4. 手指の解剖学 finger and thumb anatomy
5. 手の痛みを有する患者の評価 evaluation of the patient with hand pain

English Journal

Roles of load-induced reorganization of multi-digit physiological tremors for a tracking maneuver.

Hwang IS.SourceInstitute of Allied Health Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan. ishwang@mail.ncku.edu.tw
European journal of applied physiology.Eur J Appl Physiol.2011 Feb;111(2):175-86. Epub 2010 Sep 15.
This study was undertaken to investigate the effect of low-level loading on digit tracking and the associated physiological tremors in the moving and the stationary digits. Sixteen healthy adults conducted positional tracking with the middle finger under the loaded and unloaded conditions; meanwhile
PMID 20842373

Lack of hypertonia in thumb muscles after stroke.

Towles JD, Kamper DG, Rymer WZ.SourceSensory Motor Performance Program, Rehabilitation Institute of Chicago, 345 E. Superior St., Ste.1406, Chicago, IL 60610, USA. towles@northwestern.edu
Journal of neurophysiology.J Neurophysiol.2010 Oct;104(4):2139-46. Epub 2010 Jul 28.
Despite the importance of the thumb to hand function, little is known about the origins of thumb impairment poststroke. Accordingly, the primary purpose of this study was to assess whether thumb flexors have heightened stretch reflexes (SRs) following stroke-induced hand impairment. The secondary pu
PMID 20668270

Japanese Journal

ヒトの運動制御機構を模擬した義手の制御方式および筋電位処理方式の開発(1部神経・筋・制御)

赤沢堅造,滝沢文則,林義昭,藤井克彦
バイオメカニズム (9), 43-53, 1988-06-15
… The purpose of the present study is to develop a new type of myoelectrically controlled hand prosthesis (bio-mimetic prosthetic hand) which has the fundamental dynamic properties of the neuromuscular control system of finger muscles, in particular, the mechanical properties of the muscle and of the stretch reflex. … The neuromuscular system dynamics are estimated by performing stretch experiments with flexor muscles in the human thumb. …
NAID 110004695455

緊張異常児における皮膚反射と運動発達との関係に関する研究

黒坂ふみよ,黒坂武司,紺野勉,和田次郎
リハビリテーション医学 : 日本リハビリテーション医学会誌 22(1), 31-38, 1985-01-18
指に電気刺激を行い浅指屈筋上の皮膚より活動電位を記録し, 短(E_1)長(E_2)二つの潜時の応答を得た.E_1は脊髄を介する単シナプス反射, E_2は脳皮質を経由する多シナプス反射と考えられる.月齢とともに, 正常児ではE_2/E_1値の増加と姿勢反射および運動の発達を認めたが, 脳性麻痺児では同様な増加や発達を認めなかった.しかしE_2/E_1値の増加に伴い障害児もややバラツキはあるが正常児と …
NAID 110001857929