PMID- 11335150
OWN - NLM
STAT- MEDLINE
DCOM- 20010802
LR  - 20191104
IS  - 1050-6411 (Print)
IS  - 1050-6411 (Linking)
VI  - 11
IP  - 3
DP  - 2001 Jun
TI  - Motor unit activity during stereotyped finger tasks and computer mouse work.
PG  - 197-206
AB  - Motor unit (MU) activity pattern was examined in the right-hand extensor 
      digitorum communis muscle (EDC) during standardised finger movements simulating 
      actual computer mouse tasks. Intramuscular recordings were performed with a 
      quadripolar needle electrode. Nine women performed four lifts of their right-hand 
      index finger, middle finger or both as well as a number of double clicks. 
      Additionally, the subjects performed contra lateral activity with their left-hand 
      fingers and for three subjects recordings were also obtained during an interview 
      with no physical activity. Besides the expected close coupling of MU activity 
      with finger movement, activity was observed in three different situations with no 
      physical requirements. Attention related activity was found before or after 
      performance of the finger movement task, contra lateral activity in right EDC 
      during left-hand finger tasks, and activity during mental activity without any 
      finger movements involved. A relatively large number of doublet occurrences 
      suggest they are a natural part of the activation pattern during performance of 
      the rapid finger movement required to perform an efficient double click on the 
      computer mouse.
FAU - Sogaard, K
AU  - Sogaard K
AD  - Department of Research in VDU work, National Institute of Occupational Health, 
      Lerso Parkalle 105, 2100, Copenhagen, Denmark. ks@ami.dk
FAU - Sjogaard, G
AU  - Sjogaard G
FAU - Finsen, L
AU  - Finsen L
FAU - Olsen, H B
AU  - Olsen HB
FAU - Christensen, H
AU  - Christensen H
LA  - eng
PT  - Journal Article
PL  - England
TA  - J Electromyogr Kinesiol
JT  - Journal of electromyography and kinesiology : official journal of the 
      International Society of Electrophysiological Kinesiology
JID - 9109125
SB  - IM
MH  - Action Potentials
MH  - Adult
MH  - *Computers
MH  - *Electromyography
MH  - Female
MH  - *Fingers
MH  - Humans
MH  - Motor Neurons/*physiology
MH  - *Muscle Contraction
MH  - Muscle Fibers, Skeletal/*physiology
MH  - Muscle, Skeletal/*innervation
EDAT- 2001/05/04 10:00
MHDA- 2001/08/03 10:01
CRDT- 2001/05/04 10:00
PHST- 2001/05/04 10:00 [pubmed]
PHST- 2001/08/03 10:01 [medline]
PHST- 2001/05/04 10:00 [entrez]
AID - S1050-6411(00)00053-5 [pii]
AID - 10.1016/s1050-6411(00)00053-5 [doi]
PST - ppublish
SO  - J Electromyogr Kinesiol. 2001 Jun;11(3):197-206. doi: 
      10.1016/s1050-6411(00)00053-5.