Low-intensity training dissociates metabolic from aerobic fitness.
This study investigated the effect of prolonged whole-body low-intensity exercise on blood lipids, skeletal muscle adaptations and aerobic fitness. Seven male subjects completed a 32-day crossing of the Greenland icecap on cross-country skies and before and after this arm or leg cranking was perform...
Published in: | Scandinavian Journal of Medicine & Science in Sports |
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2008
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ftuniaarhuspubl:oai:pure.atira.dk:publications/5de53a10-f017-11dc-b919-000ea68e967b 2023-05-15T16:29:31+02:00 Low-intensity training dissociates metabolic from aerobic fitness. Helge, J W Overgaard, Kristian Andersen, J L Donsmark, M Dyrskog, S E Hermansen, K Saltin, B Daugaard, J R Daugaard, Jens Rejnhold Damsgaard, R. 2008 https://pure.au.dk/portal/da/publications/lowintensity-training-dissociates-metabolic-from-aerobic-fitness(5de53a10-f017-11dc-b919-000ea68e967b).html https://doi.org/10.1111/j.1600-0838.2006.00604.x eng eng info:eu-repo/semantics/restrictedAccess Helge , J W , Overgaard , K , Andersen , J L , Donsmark , M , Dyrskog , S E , Hermansen , K , Saltin , B , Daugaard , J R , Daugaard , J R & Damsgaard , R 2008 , ' Low-intensity training dissociates metabolic from aerobic fitness. ' , Scandinavian Journal of Medicine & Science in Sports , vol. 18 , no. 1 , pp. 86-94 . https://doi.org/10.1111/j.1600-0838.2006.00604.x article 2008 ftuniaarhuspubl https://doi.org/10.1111/j.1600-0838.2006.00604.x 2021-12-01T23:46:40Z This study investigated the effect of prolonged whole-body low-intensity exercise on blood lipids, skeletal muscle adaptations and aerobic fitness. Seven male subjects completed a 32-day crossing of the Greenland icecap on cross-country skies and before and after this arm or leg cranking was performed on two separate days and biopsies were obtained from arm and leg muscle, and venous blood was sampled. During the crossing, subjects skied for 342+/-42 min/day and body mass was decreased by 7.1+/-0.7 kg. Peak leg oxygen uptake (4.6+/-0.2 L/min) was decreased (P<0.05) by 7% whereas peak arm oxygen uptake (3.0+/-0.2 L/min) remained unchanged. Total and low-density lipoprotein cholesterol (5.0+/-0.2 and 3.20.2 mmol/L) were decreased by 8% and 20%, respectively. Muscle beta-hydroxy-acyl-CoA dehydrogenase activity was increased with 22% in arm (P=0.08) and remained unchanged in leg muscle. Hormone sensitive lipase activity was similar in arm and leg muscle prior to the expedition and was not significantly affected by the crossing. In conclusion, an improved blood lipid profile and thus metabolic fitness was present after prolonged low-intensity training and this occurred in spite of a decreased aerobic fitness and an unchanged arm and leg muscle hormone-sensitive lipase activity. Udgivelsesdato: 2008-Feb Article in Journal/Newspaper Greenland Aarhus University: Research Greenland Greenland Icecap ENVELOPE(-40.000,-40.000,72.000,72.000) Scandinavian Journal of Medicine & Science in Sports 18 1 86 94 |
institution |
Open Polar |
collection |
Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
description |
This study investigated the effect of prolonged whole-body low-intensity exercise on blood lipids, skeletal muscle adaptations and aerobic fitness. Seven male subjects completed a 32-day crossing of the Greenland icecap on cross-country skies and before and after this arm or leg cranking was performed on two separate days and biopsies were obtained from arm and leg muscle, and venous blood was sampled. During the crossing, subjects skied for 342+/-42 min/day and body mass was decreased by 7.1+/-0.7 kg. Peak leg oxygen uptake (4.6+/-0.2 L/min) was decreased (P<0.05) by 7% whereas peak arm oxygen uptake (3.0+/-0.2 L/min) remained unchanged. Total and low-density lipoprotein cholesterol (5.0+/-0.2 and 3.20.2 mmol/L) were decreased by 8% and 20%, respectively. Muscle beta-hydroxy-acyl-CoA dehydrogenase activity was increased with 22% in arm (P=0.08) and remained unchanged in leg muscle. Hormone sensitive lipase activity was similar in arm and leg muscle prior to the expedition and was not significantly affected by the crossing. In conclusion, an improved blood lipid profile and thus metabolic fitness was present after prolonged low-intensity training and this occurred in spite of a decreased aerobic fitness and an unchanged arm and leg muscle hormone-sensitive lipase activity. Udgivelsesdato: 2008-Feb |
format |
Article in Journal/Newspaper |
author |
Helge, J W Overgaard, Kristian Andersen, J L Donsmark, M Dyrskog, S E Hermansen, K Saltin, B Daugaard, J R Daugaard, Jens Rejnhold Damsgaard, R. |
spellingShingle |
Helge, J W Overgaard, Kristian Andersen, J L Donsmark, M Dyrskog, S E Hermansen, K Saltin, B Daugaard, J R Daugaard, Jens Rejnhold Damsgaard, R. Low-intensity training dissociates metabolic from aerobic fitness. |
author_facet |
Helge, J W Overgaard, Kristian Andersen, J L Donsmark, M Dyrskog, S E Hermansen, K Saltin, B Daugaard, J R Daugaard, Jens Rejnhold Damsgaard, R. |
author_sort |
Helge, J W |
title |
Low-intensity training dissociates metabolic from aerobic fitness. |
title_short |
Low-intensity training dissociates metabolic from aerobic fitness. |
title_full |
Low-intensity training dissociates metabolic from aerobic fitness. |
title_fullStr |
Low-intensity training dissociates metabolic from aerobic fitness. |
title_full_unstemmed |
Low-intensity training dissociates metabolic from aerobic fitness. |
title_sort |
low-intensity training dissociates metabolic from aerobic fitness. |
publishDate |
2008 |
url |
https://pure.au.dk/portal/da/publications/lowintensity-training-dissociates-metabolic-from-aerobic-fitness(5de53a10-f017-11dc-b919-000ea68e967b).html https://doi.org/10.1111/j.1600-0838.2006.00604.x |
long_lat |
ENVELOPE(-40.000,-40.000,72.000,72.000) |
geographic |
Greenland Greenland Icecap |
geographic_facet |
Greenland Greenland Icecap |
genre |
Greenland |
genre_facet |
Greenland |
op_source |
Helge , J W , Overgaard , K , Andersen , J L , Donsmark , M , Dyrskog , S E , Hermansen , K , Saltin , B , Daugaard , J R , Daugaard , J R & Damsgaard , R 2008 , ' Low-intensity training dissociates metabolic from aerobic fitness. ' , Scandinavian Journal of Medicine & Science in Sports , vol. 18 , no. 1 , pp. 86-94 . https://doi.org/10.1111/j.1600-0838.2006.00604.x |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1111/j.1600-0838.2006.00604.x |
container_title |
Scandinavian Journal of Medicine & Science in Sports |
container_volume |
18 |
container_issue |
1 |
container_start_page |
86 |
op_container_end_page |
94 |
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1766019224721948672 |