Glucose and free fatty acid utilization during prolonged exercise in prepubertal boys in relation to catecholamine responses

ISSN:
1439-6327
Keywords:
Children ; Exercise ; Catecholamines ; Glucose
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
Notes:
Summary Ten prepubertal boys performed 60-min cycle exercise at about 60% of their maximal oxygen uptake as previously measured. To measure packed cell volume, plasma glucose, free fatty acids (FFA), glycerol and catecholamines, blood samples were drawn at rest using a heparinized cathether and at the 15th, 30th and 60th min of the exercise and after 30 min of recovery. At rest, the blood glucose concentrations were at the lowest values for normal. Exercise induced a small decrease of blood glucose which was combined with an abrupt increase of the noradrenaline concentration during the first 15 min. The FFA and glycerol concentrations increased throughout the exercise linearly with that of adrenaline. Compared to adults, the FFA uptake expressed per minute and per litre of oxygen uptake was greater in children. These results suggested that it is difficult for children to maintain a constant blood glucose concentration and that prolonged exercise provided a real stimulus to hypoglycaemia. An immediate and large increase in noradrenaline concentration during exercise and a greater utilization of FFA was probably used by children to prevent hypoglycaemia.
Type of Medium:
Electronic Resource
URL:
_version_ 1798297418903584769
autor Delamarche, P.
Monnier, M.
Gratas-Delamarche, A.
Koubi, H. E.
Mayet, M. H.
Favier, R.
autorsonst Delamarche, P.
Monnier, M.
Gratas-Delamarche, A.
Koubi, H. E.
Mayet, M. H.
Favier, R.
book_url http://dx.doi.org/10.1007/BF01466276
datenlieferant nat_lic_papers
hauptsatz hsatz_simple
identnr NLM204513596
issn 1439-6327
journal_name European journal of applied physiology
materialart 1
notes Summary Ten prepubertal boys performed 60-min cycle exercise at about 60% of their maximal oxygen uptake as previously measured. To measure packed cell volume, plasma glucose, free fatty acids (FFA), glycerol and catecholamines, blood samples were drawn at rest using a heparinized cathether and at the 15th, 30th and 60th min of the exercise and after 30 min of recovery. At rest, the blood glucose concentrations were at the lowest values for normal. Exercise induced a small decrease of blood glucose which was combined with an abrupt increase of the noradrenaline concentration during the first 15 min. The FFA and glycerol concentrations increased throughout the exercise linearly with that of adrenaline. Compared to adults, the FFA uptake expressed per minute and per litre of oxygen uptake was greater in children. These results suggested that it is difficult for children to maintain a constant blood glucose concentration and that prolonged exercise provided a real stimulus to hypoglycaemia. An immediate and large increase in noradrenaline concentration during exercise and a greater utilization of FFA was probably used by children to prevent hypoglycaemia.
package_name Springer
publikationsjahr_anzeige 1992
publikationsjahr_facette 1992
publikationsjahr_intervall 8009:1990-1994
publikationsjahr_sort 1992
publisher Springer
reference 65 (1992), S. 66-72
schlagwort Children
Exercise
Catecholamines
Glucose
search_space articles
shingle_author_1 Delamarche, P.
Monnier, M.
Gratas-Delamarche, A.
Koubi, H. E.
Mayet, M. H.
Favier, R.
shingle_author_2 Delamarche, P.
Monnier, M.
Gratas-Delamarche, A.
Koubi, H. E.
Mayet, M. H.
Favier, R.
shingle_author_3 Delamarche, P.
Monnier, M.
Gratas-Delamarche, A.
Koubi, H. E.
Mayet, M. H.
Favier, R.
shingle_author_4 Delamarche, P.
Monnier, M.
Gratas-Delamarche, A.
Koubi, H. E.
Mayet, M. H.
Favier, R.
shingle_catch_all_1 Delamarche, P.
Monnier, M.
Gratas-Delamarche, A.
Koubi, H. E.
Mayet, M. H.
Favier, R.
Glucose and free fatty acid utilization during prolonged exercise in prepubertal boys in relation to catecholamine responses
Children
Exercise
Catecholamines
Glucose
Children
Exercise
Catecholamines
Glucose
Summary Ten prepubertal boys performed 60-min cycle exercise at about 60% of their maximal oxygen uptake as previously measured. To measure packed cell volume, plasma glucose, free fatty acids (FFA), glycerol and catecholamines, blood samples were drawn at rest using a heparinized cathether and at the 15th, 30th and 60th min of the exercise and after 30 min of recovery. At rest, the blood glucose concentrations were at the lowest values for normal. Exercise induced a small decrease of blood glucose which was combined with an abrupt increase of the noradrenaline concentration during the first 15 min. The FFA and glycerol concentrations increased throughout the exercise linearly with that of adrenaline. Compared to adults, the FFA uptake expressed per minute and per litre of oxygen uptake was greater in children. These results suggested that it is difficult for children to maintain a constant blood glucose concentration and that prolonged exercise provided a real stimulus to hypoglycaemia. An immediate and large increase in noradrenaline concentration during exercise and a greater utilization of FFA was probably used by children to prevent hypoglycaemia.
1439-6327
14396327
Springer
shingle_catch_all_2 Delamarche, P.
Monnier, M.
Gratas-Delamarche, A.
Koubi, H. E.
Mayet, M. H.
Favier, R.
Glucose and free fatty acid utilization during prolonged exercise in prepubertal boys in relation to catecholamine responses
Children
Exercise
Catecholamines
Glucose
Children
Exercise
Catecholamines
Glucose
Summary Ten prepubertal boys performed 60-min cycle exercise at about 60% of their maximal oxygen uptake as previously measured. To measure packed cell volume, plasma glucose, free fatty acids (FFA), glycerol and catecholamines, blood samples were drawn at rest using a heparinized cathether and at the 15th, 30th and 60th min of the exercise and after 30 min of recovery. At rest, the blood glucose concentrations were at the lowest values for normal. Exercise induced a small decrease of blood glucose which was combined with an abrupt increase of the noradrenaline concentration during the first 15 min. The FFA and glycerol concentrations increased throughout the exercise linearly with that of adrenaline. Compared to adults, the FFA uptake expressed per minute and per litre of oxygen uptake was greater in children. These results suggested that it is difficult for children to maintain a constant blood glucose concentration and that prolonged exercise provided a real stimulus to hypoglycaemia. An immediate and large increase in noradrenaline concentration during exercise and a greater utilization of FFA was probably used by children to prevent hypoglycaemia.
1439-6327
14396327
Springer
shingle_catch_all_3 Delamarche, P.
Monnier, M.
Gratas-Delamarche, A.
Koubi, H. E.
Mayet, M. H.
Favier, R.
Glucose and free fatty acid utilization during prolonged exercise in prepubertal boys in relation to catecholamine responses
Children
Exercise
Catecholamines
Glucose
Children
Exercise
Catecholamines
Glucose
Summary Ten prepubertal boys performed 60-min cycle exercise at about 60% of their maximal oxygen uptake as previously measured. To measure packed cell volume, plasma glucose, free fatty acids (FFA), glycerol and catecholamines, blood samples were drawn at rest using a heparinized cathether and at the 15th, 30th and 60th min of the exercise and after 30 min of recovery. At rest, the blood glucose concentrations were at the lowest values for normal. Exercise induced a small decrease of blood glucose which was combined with an abrupt increase of the noradrenaline concentration during the first 15 min. The FFA and glycerol concentrations increased throughout the exercise linearly with that of adrenaline. Compared to adults, the FFA uptake expressed per minute and per litre of oxygen uptake was greater in children. These results suggested that it is difficult for children to maintain a constant blood glucose concentration and that prolonged exercise provided a real stimulus to hypoglycaemia. An immediate and large increase in noradrenaline concentration during exercise and a greater utilization of FFA was probably used by children to prevent hypoglycaemia.
1439-6327
14396327
Springer
shingle_catch_all_4 Delamarche, P.
Monnier, M.
Gratas-Delamarche, A.
Koubi, H. E.
Mayet, M. H.
Favier, R.
Glucose and free fatty acid utilization during prolonged exercise in prepubertal boys in relation to catecholamine responses
Children
Exercise
Catecholamines
Glucose
Children
Exercise
Catecholamines
Glucose
Summary Ten prepubertal boys performed 60-min cycle exercise at about 60% of their maximal oxygen uptake as previously measured. To measure packed cell volume, plasma glucose, free fatty acids (FFA), glycerol and catecholamines, blood samples were drawn at rest using a heparinized cathether and at the 15th, 30th and 60th min of the exercise and after 30 min of recovery. At rest, the blood glucose concentrations were at the lowest values for normal. Exercise induced a small decrease of blood glucose which was combined with an abrupt increase of the noradrenaline concentration during the first 15 min. The FFA and glycerol concentrations increased throughout the exercise linearly with that of adrenaline. Compared to adults, the FFA uptake expressed per minute and per litre of oxygen uptake was greater in children. These results suggested that it is difficult for children to maintain a constant blood glucose concentration and that prolonged exercise provided a real stimulus to hypoglycaemia. An immediate and large increase in noradrenaline concentration during exercise and a greater utilization of FFA was probably used by children to prevent hypoglycaemia.
1439-6327
14396327
Springer
shingle_title_1 Glucose and free fatty acid utilization during prolonged exercise in prepubertal boys in relation to catecholamine responses
shingle_title_2 Glucose and free fatty acid utilization during prolonged exercise in prepubertal boys in relation to catecholamine responses
shingle_title_3 Glucose and free fatty acid utilization during prolonged exercise in prepubertal boys in relation to catecholamine responses
shingle_title_4 Glucose and free fatty acid utilization during prolonged exercise in prepubertal boys in relation to catecholamine responses
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source_archive Springer Online Journal Archives 1860-2000
timestamp 2024-05-06T10:07:40.819Z
titel Glucose and free fatty acid utilization during prolonged exercise in prepubertal boys in relation to catecholamine responses
titel_suche Glucose and free fatty acid utilization during prolonged exercise in prepubertal boys in relation to catecholamine responses
topic WW-YZ
uid nat_lic_papers_NLM204513596