Pregnant women exercise at a higher intensity during 30 min of self-paced cycling compared with walking during late gestation: Implications for 2 h postprandial glucose levels
Objective To compare the effect of an acute 30-min bout of self-paced stationary cycling (SC) with treadmill walking (TW) or a resting control (CON) on maternal blood glucose, insulin and metabolic responses during pregnancy. Methods Twelve healthy women at 29.9 ± 2.4 (mean ± SD) weeks gestation con...
| Main Authors: | , , , |
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| Format: | Journal Article |
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W.B. Saunders Co.
2013
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| Online Access: | http://hdl.handle.net/20.500.11937/56193 |
| _version_ | 1848759810188640256 |
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| author | Halse, Rhiannon Wallman, K. Newnham, J. Guelfi, K. |
| author_facet | Halse, Rhiannon Wallman, K. Newnham, J. Guelfi, K. |
| author_sort | Halse, Rhiannon |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Objective To compare the effect of an acute 30-min bout of self-paced stationary cycling (SC) with treadmill walking (TW) or a resting control (CON) on maternal blood glucose, insulin and metabolic responses during pregnancy. Methods Twelve healthy women at 29.9 ± 2.4 (mean ± SD) weeks gestation consumed a 75 g carbohydrate drink as part of an oral glucose tolerance test (OGTT) following 30 min of SC, TW or CON. Blood was sampled before and after exercise, and for 2 h in response to the OGTT for the determination of glucose and insulin. Exercise intensity was monitored and enjoyment of TW and SC was assessed post-exercise. Results Women selectively worked harder in SC compared with TW, with a higher maternal heart rate, rating of perceived exertion, mean oxygen consumption, respiratory exchange ratio, and total energy expenditure during exercise (p < 0.05). SC was also associated with significantly lower postprandial blood glucose levels at 120 min following the OGTT (6.9 ± 0.9 mmol·l - 1 ) compared with both CON (8.1 ± 0.7 mmol·l - 1 , p = 0.001) and TW (7.8 ± 0.9 mmol·l - 1 , p = 0.004) and lower insulin at 120 min post-glucose ingestion compared with TW (p = 0.021). Enjoyment was similar between exercise protocols (p = 0.437). Conclusions In late pregnancy, an acute 30 min bout of self-paced SC may be preferable to a matched duration of TW given the additional energy expenditure that can be achieved, which in turn appears beneficial for blunting the glycemic response to glucose ingestion. © 2013 Elsevier Inc. |
| first_indexed | 2025-11-14T10:05:48Z |
| format | Journal Article |
| id | curtin-20.500.11937-56193 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:05:48Z |
| publishDate | 2013 |
| publisher | W.B. Saunders Co. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-561932017-09-13T16:10:28Z Pregnant women exercise at a higher intensity during 30 min of self-paced cycling compared with walking during late gestation: Implications for 2 h postprandial glucose levels Halse, Rhiannon Wallman, K. Newnham, J. Guelfi, K. Objective To compare the effect of an acute 30-min bout of self-paced stationary cycling (SC) with treadmill walking (TW) or a resting control (CON) on maternal blood glucose, insulin and metabolic responses during pregnancy. Methods Twelve healthy women at 29.9 ± 2.4 (mean ± SD) weeks gestation consumed a 75 g carbohydrate drink as part of an oral glucose tolerance test (OGTT) following 30 min of SC, TW or CON. Blood was sampled before and after exercise, and for 2 h in response to the OGTT for the determination of glucose and insulin. Exercise intensity was monitored and enjoyment of TW and SC was assessed post-exercise. Results Women selectively worked harder in SC compared with TW, with a higher maternal heart rate, rating of perceived exertion, mean oxygen consumption, respiratory exchange ratio, and total energy expenditure during exercise (p < 0.05). SC was also associated with significantly lower postprandial blood glucose levels at 120 min following the OGTT (6.9 ± 0.9 mmol·l - 1 ) compared with both CON (8.1 ± 0.7 mmol·l - 1 , p = 0.001) and TW (7.8 ± 0.9 mmol·l - 1 , p = 0.004) and lower insulin at 120 min post-glucose ingestion compared with TW (p = 0.021). Enjoyment was similar between exercise protocols (p = 0.437). Conclusions In late pregnancy, an acute 30 min bout of self-paced SC may be preferable to a matched duration of TW given the additional energy expenditure that can be achieved, which in turn appears beneficial for blunting the glycemic response to glucose ingestion. © 2013 Elsevier Inc. 2013 Journal Article http://hdl.handle.net/20.500.11937/56193 10.1016/j.metabol.2012.12.009 W.B. Saunders Co. restricted |
| spellingShingle | Halse, Rhiannon Wallman, K. Newnham, J. Guelfi, K. Pregnant women exercise at a higher intensity during 30 min of self-paced cycling compared with walking during late gestation: Implications for 2 h postprandial glucose levels |
| title | Pregnant women exercise at a higher intensity during 30 min of self-paced cycling compared with walking during late gestation: Implications for 2 h postprandial glucose levels |
| title_full | Pregnant women exercise at a higher intensity during 30 min of self-paced cycling compared with walking during late gestation: Implications for 2 h postprandial glucose levels |
| title_fullStr | Pregnant women exercise at a higher intensity during 30 min of self-paced cycling compared with walking during late gestation: Implications for 2 h postprandial glucose levels |
| title_full_unstemmed | Pregnant women exercise at a higher intensity during 30 min of self-paced cycling compared with walking during late gestation: Implications for 2 h postprandial glucose levels |
| title_short | Pregnant women exercise at a higher intensity during 30 min of self-paced cycling compared with walking during late gestation: Implications for 2 h postprandial glucose levels |
| title_sort | pregnant women exercise at a higher intensity during 30 min of self-paced cycling compared with walking during late gestation: implications for 2 h postprandial glucose levels |
| url | http://hdl.handle.net/20.500.11937/56193 |