2010年7月7日 · The FDI is the most distal ulnar-innervated muscle, and is considered to be more sensitive for picking up ulnar neuropathy at the elbow. So, with that switch, the patient had a clear 15m/s drop on the left –> ulnar neuropathy at the elbow.

Ulnar nerve motor conduction study with FDI and abductor digiti minimi muscle (ADM) recording was performed in 214 hands of 107 healthy subjects. Ulnar NCS was performed with 2 different recording electrode montages (ADM-base of 5 th finger; FDI-thumb) and differences in latency and amplitude were compared.

2022年10月17日 · EMG. In electromyography, the most commonly tested hand muscles innervated by the ulnar nerve are the abductor digiti minimi (ADI) and the first dorsal interosseus (FDI). If an axonal lesion is present, these muscles will …

2019年8月29日 · In this study, we develop an anatomically accurate, subject-specific surface EMG model of the first dorsal interosseous (FDI) muscle of the hand in which muscle fiber arrangement and electrical anisotropy are estimated using DTI fiber tracking.

If one chooses to perform EMG, it is recommended to examine the FDI as well as the ADM muscle, since in 51.9% (abnormal spontaneous muscle fiber activities) to 66.7% (increased polyphasic MUAPs) of the cases abnormalities are found in only one of two muscles.

During voluntary flexion contractions, normalized FDI EMG was ∼28% greater with thumb down, compared to thumb up, with no consistent change in neural drive to the long flexors. Hence, the contribution of FDI to index finger flexion can be altered by changes in thumb position.

2024年10月1日 · This study aimed to develop an insertion technique for intramuscular EMG recording of the oblique head of adductor hallucis (AddH) and first dorsal interosseous (FDI) muscles in humans via the dorsum of the foot, and report feasibility of intramuscular EMG data acquisition during walking in shoes.

2024年12月10日 · In arms with UNE, concentric needle EMG has a high sensitivity. For ulnar-innervated muscles, FDI has the highest frequency of SDA, and ADM shows (overall) the highest level of neuropathic abnormalities. I suggest performing needle EMG of FDI in subacute and EMG of ADM in chronic UNE.

The surface EMG and isometric contraction forces were recorded from the first dorsal interosseous (FDI) muscles in 4 human subjects when they generated different levels of isometric contraction in three radial directions: abduction, flexion, and a …

2009年10月9日 · Abnormal EMG in FDI was found in 52% of those with pain and in 42% of patients without pain, a non-significant difference (chi-square test, p = 0.26). EMG was recorded from ADM in 40 patients (53% abnormal), and from APB in …