Mass and fiber cross-sectional area of soleus muscle grafts following training
This study tested the hypothesis that endurance training initiated 28 d following grafting of the soleus muscle would increase fiber cross-sectional area concomitant with an increase in mass. Nerve-implant orthotopic grafting operations were performed on 6-wk-old rats anesthetized with pentobarbital...
| Autores principales: | , , |
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| Formato: | Artículo |
| Lenguaje: | inglés |
| Publicado: |
Universidad Autónoma de Nuevo León
1989
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| Materias: | |
| Acceso en línea: | http://eprints.uanl.mx/13258/1/Art.%203.pdf |
| _version_ | 1824413673242755072 |
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| author | Clark, Kathryn I. Morales, Pedro G. White, Timothy P. |
| author_facet | Clark, Kathryn I. Morales, Pedro G. White, Timothy P. |
| author_sort | Clark, Kathryn I. |
| collection | Repositorio Institucional |
| description | This study tested the hypothesis that endurance training initiated 28 d following grafting of the soleus muscle would increase fiber cross-sectional area concomitant with an increase in mass. Nerve-implant orthotopic grafting operations were performed on 6-wk-old rats anesthetized with pentobarbital sodium. A cohort of animals began running 28 d later. Control muscles were from age-matched, untrained rats. Mass and fiber cross-sectional area of grafts were 37 and 66% less than the respective control values at both 56 and 112 d post-grafting. Training increased graft mass by 49% over the non-run graft value of 82 +/- 8 mg at 56 d post-grafting. Continued training did not increase mass further. The grafts of trained rats were 33% greater than untrained at day 112 due to growth of grafts in untrained rats. Running had no effect on fiber cross-sectional area of grafts through 56 d, but by 112 d the cross-sectional area of Type I fibers was 30% greater than the non-run graft value of 1,271 +/- 81 micron2. By 112 d fiber type profiles were not different between control muscle and grafts from trained and untrained rats. We conclude that there is a dissociation between mass and fiber cross-sectional area in grafts compared to control muscle, and training affects these variables by similar magnitudes but at different times. |
| format | Article |
| id | eprints-13258 |
| institution | UANL |
| language | English |
| publishDate | 1989 |
| publisher | Universidad Autónoma de Nuevo León |
| record_format | eprints |
| spelling | eprints-132582017-11-24T15:28:13Z http://eprints.uanl.mx/13258/ Mass and fiber cross-sectional area of soleus muscle grafts following training Clark, Kathryn I. Morales, Pedro G. White, Timothy P. GV Deportes y Recreación This study tested the hypothesis that endurance training initiated 28 d following grafting of the soleus muscle would increase fiber cross-sectional area concomitant with an increase in mass. Nerve-implant orthotopic grafting operations were performed on 6-wk-old rats anesthetized with pentobarbital sodium. A cohort of animals began running 28 d later. Control muscles were from age-matched, untrained rats. Mass and fiber cross-sectional area of grafts were 37 and 66% less than the respective control values at both 56 and 112 d post-grafting. Training increased graft mass by 49% over the non-run graft value of 82 +/- 8 mg at 56 d post-grafting. Continued training did not increase mass further. The grafts of trained rats were 33% greater than untrained at day 112 due to growth of grafts in untrained rats. Running had no effect on fiber cross-sectional area of grafts through 56 d, but by 112 d the cross-sectional area of Type I fibers was 30% greater than the non-run graft value of 1,271 +/- 81 micron2. By 112 d fiber type profiles were not different between control muscle and grafts from trained and untrained rats. We conclude that there is a dissociation between mass and fiber cross-sectional area in grafts compared to control muscle, and training affects these variables by similar magnitudes but at different times. Universidad Autónoma de Nuevo León 1989 Article PeerReviewed text en cc_by_nc_nd http://eprints.uanl.mx/13258/1/Art.%203.pdf http://eprints.uanl.mx/13258/1.haspreviewThumbnailVersion/Art.%203.pdf Clark, Kathryn I. y Morales, Pedro G. y White, Timothy P. (1989) Mass and fiber cross-sectional area of soleus muscle grafts following training. Medicine and science in sports and exercise, 21 (4). pp. 432-436. |
| spellingShingle | GV Deportes y Recreación Clark, Kathryn I. Morales, Pedro G. White, Timothy P. Mass and fiber cross-sectional area of soleus muscle grafts following training |
| thumbnail | https://rediab.uanl.mx/themes/sandal5/images/online.png |
| title | Mass and fiber cross-sectional area of soleus muscle grafts following training |
| title_full | Mass and fiber cross-sectional area of soleus muscle grafts following training |
| title_fullStr | Mass and fiber cross-sectional area of soleus muscle grafts following training |
| title_full_unstemmed | Mass and fiber cross-sectional area of soleus muscle grafts following training |
| title_short | Mass and fiber cross-sectional area of soleus muscle grafts following training |
| title_sort | mass and fiber cross sectional area of soleus muscle grafts following training |
| topic | GV Deportes y Recreación |
| url | http://eprints.uanl.mx/13258/1/Art.%203.pdf |
| work_keys_str_mv | AT clarkkathryni massandfibercrosssectionalareaofsoleusmusclegraftsfollowingtraining AT moralespedrog massandfibercrosssectionalareaofsoleusmusclegraftsfollowingtraining AT whitetimothyp massandfibercrosssectionalareaofsoleusmusclegraftsfollowingtraining |