Changes in the excitability of ankle extensor and flexor motoneurons at the onset of voluntary contraction of quadriceps femoris muscle in man
Saved in:
| Title translated into German: | Aenderungen der Motoneuronen-Erregbarkeit der Sprunggelenkstrecker und -beuger bei Beginn willkuerlicher Kontraktion des M. quadriceps femoris des Menschen |
|---|---|
| Author: | Komiyama, T.; Furubayashi, T.; Kawai, K. |
| Published in: | Japanese journal of physical fitness and sports medicine |
| Published: | 43 (1994), 4 , S. 290-299, Lit. |
| Format: | Publications (Database SPOLIT) |
| Publication Type: | Journal article |
| Media type: | Print resource |
| Language: | Japanese |
| ISSN: | 0039-906X |
| Keywords: | |
| Online Access: | |
| Identification number: | PU199705204795 |
| Source: | BISp |
| id |
PU199705204795 |
|---|---|
| bisp-collection |
db |
| format |
Literatur |
| last_indexed |
2009-04-27T15:32:46Z |
| first_indexed |
2001-07-24T13:34:50Z |
| publication_source |
BISp |
| subformat |
Zeitschriftenartikel |
| hierarchy_top_id |
JO00000000690 |
| hierarchy_parent_id |
JOI199485dc0000690 |
| hierarchy_top_title |
Japanese journal of physical fitness and sports medicine |
| hierarchy_parent_title |
Japanese journal of physical fitness and sports medicine, 1994, 4 |
| is_hierarchy_id |
PU199705204795 |
| is_hierarchy_title |
Changes in the excitability of ankle extensor and flexor motoneurons at the onset of voluntary contraction of quadriceps femoris muscle in man |
| hierarchy_sequence |
0290 |
| recordtype |
bisparticle |
| publishDate |
1994 |
| publishDate_facet |
1994 |
| language |
jpn |
| title |
Changes in the excitability of ankle extensor and flexor motoneurons at the onset of voluntary contraction of quadriceps femoris muscle in man |
| spellingShingle |
Changes in the excitability of ankle extensor and flexor motoneurons at the onset of voluntary contraction of quadriceps femoris muscle in man Afferenz Efferenz Erregbarkeit, neuromuskuläre Extensor Flexor H-Reflex M. quadriceps femoris Motoneuron Motorische Einheit Neurophysiologie Skelettmuskulatur Sportmedizin Sprunggelenk Unterschenkelmuskulatur |
| title_sort |
changes in the excitability of ankle extensor and flexor motoneurons at the onset of voluntary contraction of quadriceps femoris muscle in man |
| title_short |
Changes in the excitability of ankle extensor and flexor motoneurons at the onset of voluntary contraction of quadriceps femoris muscle in man |
| title_alt |
Aenderungen der Motoneuronen-Erregbarkeit der Sprunggelenkstrecker und -beuger bei Beginn willkuerlicher Kontraktion des M. quadriceps femoris des Menschen |
| title_alt_lang |
deu |
| media_type |
Gedruckte Ressource |
| city |
Tokio |
| abstract |
A study was conducted to investigate changes in the excitability of the ankle extensor and flexor motoneurons during voluntary contraction of the quadriceps femoris muscle (Quad). For this purpose, we used a reaction time task and the H-reflex technique. Subjects lay in the prone position on a bed and performed isometric contraction of the Quad. The strength of the contraction force was about 30% of maximum. In all subjects we observed strong facilitation of the soleus (Sol) H-reflex, which occurred from the EMG onset of vastus lateralis muscle (VL). The pretibial muscle (TA) H-reflex was also facilitated at almost the same time as that seen in the Sol H-reflex in nine out of ten subjects. The peak of Sol and TA H-reflex facilitation appeared between 50 and 100 ms after the EMG onset of the VL, and then these facilitations gradually decreased. Weak but constant activities of the Sol and medial gastrocnemius muscle (MG) were observed on the full-wave rectified and averaged EMG record after 50 to 80 ms from the EMG onset of VL. No such EMG activity was observed in TA. These results suggest that excitatory inputs including those of both descending and peripheral origin induced by voluntary contraction of Quad are responsible for facilitation of the ankle extensor and flexor motoneurons. In addition, removal of presynaptic inhibition of the Ia terminal of the motoneurons by descending motor command might explain the present results. Verf.-Referat |
| abstract_lang |
eng |
| abstract_type |
author |
| author2 |
Komiyama, T. Furubayashi, T. Kawai, K. |
| author_facet |
Komiyama, T. Furubayashi, T. Kawai, K. |
| author2-role |
Autor Autor Autor |
| author_author_facet |
Komiyama, T. Furubayashi, T. Kawai, K. |
| spelling |
Komiyama, T. Furubayashi, T. Kawai, K. 0039-906X 600775-2 Afferenz Efferenz Erregbarkeit, neuromuskuläre Extensor Flexor H-Reflex M. quadriceps femoris Motoneuron Motorische Einheit Neurophysiologie Skelettmuskulatur Sportmedizin Sprunggelenk Unterschenkelmuskulatur afferent ankle joint efferent extensor flexor h-reflex lower leg muscles m. quadriceps femoris motoneuron motor unit neuromuscular excitability neurophysiology skeletal muscles sports medicine Muskelerregbarkeit Fussknoechel Knoechel Fussgelenk Beuger Strecker Wadenmuskulatur Wadenkrampf Nervenbahn, afferente Nervenbahn, efferente Einheit, motorische Motoneuron Physiologie Muskulatur Skelettmuskel Muskel Medizin Geschichte der Medizin Untersuchung, sportmedizinische Wasserdampf quadriceps muscle of thigh ankle shank muscles muscles of the lower leg muscles of the shank Changes in the excitability of ankle extensor and flexor motoneurons at the onset of voluntary contraction of quadriceps femoris muscle in man PU199705204795 199705204795 |
| issn |
0039-906X |
| zdb |
600775-2 |
| topic |
Afferenz Efferenz Erregbarkeit, neuromuskuläre Extensor Flexor H-Reflex M. quadriceps femoris Motoneuron Motorische Einheit Neurophysiologie Skelettmuskulatur Sportmedizin Sprunggelenk Unterschenkelmuskulatur |
| topic_facet |
Afferenz Efferenz Erregbarkeit, neuromuskuläre Extensor Flexor H-Reflex M. quadriceps femoris Motoneuron Motorische Einheit Neurophysiologie Skelettmuskulatur Sportmedizin Sprunggelenk Unterschenkelmuskulatur |
| topic_en |
afferent ankle joint efferent extensor flexor h-reflex lower leg muscles m. quadriceps femoris motoneuron motor unit neuromuscular excitability neurophysiology skeletal muscles sports medicine |
| topic_en_facet |
afferent ankle joint efferent extensor flexor h-reflex lower leg muscles m. quadriceps femoris motoneuron motor unit neuromuscular excitability neurophysiology skeletal muscles sports medicine |
| synonym |
Muskelerregbarkeit Fussknoechel Knoechel Fussgelenk Beuger Strecker Wadenmuskulatur Wadenkrampf Nervenbahn, afferente Nervenbahn, efferente Einheit, motorische Motoneuron Physiologie Muskulatur Skelettmuskel Muskel Medizin Geschichte der Medizin Untersuchung, sportmedizinische Wasserdampf |
| synonym_en |
quadriceps muscle of thigh ankle shank muscles muscles of the lower leg muscles of the shank |
| journal_facet |
Japanese journal of physical fitness and sports medicine |
| container_title |
Japanese journal of physical fitness and sports medicine |
| container_volume |
43 |
| container_issue |
4 |
| container_start_page |
S. 290-299 |
| has_references |
1 |
| institution |
BISp |
| journal_fac |
JO00000000690 |
| journal_year |
1994 |
| journal_issue |
4 |
| _version_ |
1655184331323211776 |
| score |
13,235102 |