Abstract
The relationship between macro-EMG (electromyography) and motor unit recruitment threshold was studied in the first dorsal interosseous (FDI) muscle of normal young and aged subjects. During voluntary isometric contraction, motor unit action potentials (MUAP) were collected by a special quadrifilar electrode and decomposed to each MUAP train (MUAPT) using an EMG signal decomposition technique. Macro-EMG was obtained from the electrode shaft, then triggered and averaged for each MUAPT. A positive linear correlation was observed in both the young and aged subjects. However, the correlation coefficients were significantly lower in the aged individuals than in the young individuals.
| Original language | English |
|---|---|
| Pages (from-to) | 1-4 |
| Number of pages | 4 |
| Journal | Neuroscience Letters |
| Volume | 179 |
| Issue number | 1-2 |
| DOIs | |
| Publication status | Published - 1994 Sep 26 |
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Keywords
- Aged
- Decomposition
- Macro-EMG
- Motor unit
- Recruitment threshold
- Size principle
ASJC Scopus subject areas
- Neuroscience(all)
Cite this
Macro-EMG and motor unit recruitment threshold : differences between the young and the aged. / Masakado, Yoshihisa; Noda, Yukio; Nagata, Masa aki; Kimura, Akio; Chino, Naoichi; Akaboshi, Kazuto.
In: Neuroscience Letters, Vol. 179, No. 1-2, 26.09.1994, p. 1-4.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Macro-EMG and motor unit recruitment threshold
T2 - differences between the young and the aged
AU - Masakado, Yoshihisa
AU - Noda, Yukio
AU - Nagata, Masa aki
AU - Kimura, Akio
AU - Chino, Naoichi
AU - Akaboshi, Kazuto
PY - 1994/9/26
Y1 - 1994/9/26
N2 - The relationship between macro-EMG (electromyography) and motor unit recruitment threshold was studied in the first dorsal interosseous (FDI) muscle of normal young and aged subjects. During voluntary isometric contraction, motor unit action potentials (MUAP) were collected by a special quadrifilar electrode and decomposed to each MUAP train (MUAPT) using an EMG signal decomposition technique. Macro-EMG was obtained from the electrode shaft, then triggered and averaged for each MUAPT. A positive linear correlation was observed in both the young and aged subjects. However, the correlation coefficients were significantly lower in the aged individuals than in the young individuals.
AB - The relationship between macro-EMG (electromyography) and motor unit recruitment threshold was studied in the first dorsal interosseous (FDI) muscle of normal young and aged subjects. During voluntary isometric contraction, motor unit action potentials (MUAP) were collected by a special quadrifilar electrode and decomposed to each MUAP train (MUAPT) using an EMG signal decomposition technique. Macro-EMG was obtained from the electrode shaft, then triggered and averaged for each MUAPT. A positive linear correlation was observed in both the young and aged subjects. However, the correlation coefficients were significantly lower in the aged individuals than in the young individuals.
KW - Aged
KW - Decomposition
KW - Macro-EMG
KW - Motor unit
KW - Recruitment threshold
KW - Size principle
UR - http://www.scopus.com/inward/record.url?scp=0027941084&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0027941084&partnerID=8YFLogxK
U2 - 10.1016/0304-3940(94)90920-2
DO - 10.1016/0304-3940(94)90920-2
M3 - Article
C2 - 7845601
AN - SCOPUS:0027941084
VL - 179
SP - 1
EP - 4
JO - Neuroscience Letters
JF - Neuroscience Letters
SN - 0304-3940
IS - 1-2
ER -