Short-term daily steps increment enhances submaximal exercise tolerance in healthy insuficiently active men
The 10000 steps/day message has been proposed as a minimum steps/day target for healthy adults. Nevertheless, this target does not seem feasible as an initial goal for inactive adults. New strategies to progressively increase daily steps should be evaluated. The study evaluated the effectiveness of...
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Sociedade Brasileira de Atividade Física e Saúde
2014-02-01
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| Series: | Revista Brasileira de Atividade Física e Saúde |
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| Online Access: | https://rbafs.org.br/RBAFS/article/view/3277 |
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| author | Luiz Porto Keila Fontana Guilherme Molina Guilherme Rocco Luiz Junqueira Jr. |
| author_facet | Luiz Porto Keila Fontana Guilherme Molina Guilherme Rocco Luiz Junqueira Jr. |
| author_sort | Luiz Porto |
| collection | DOAJ |
| description | The 10000 steps/day message has been proposed as a minimum steps/day target for healthy adults. Nevertheless, this target does not seem feasible as an initial goal for inactive adults. New strategies to progressively increase daily steps should be evaluated. The study evaluated the effectiveness of increase a pedometer-measured 3500 steps/day on physical performance at anaerobic threshold (AT). Nineteen healthy insufficiently active men, 19-46 yrs, wore a pedometer for 2 weeks to quantify their habitual daily steps at baseline. Afterwards, subjects were instructed to increase 3500 steps/day above baseline during 3 weeks (intervention). Cardiopulmonary exercise stress tests (CPX) were performed before and after the intervention. Submaximal exercise tolerance was analyzed by the heart rate at AT (HR-AT), the oxygen uptake at AT (VO2-AT), the time spent on CPX until AT onset and the reached distance. Nonparametric statistics were applied, expressing the results as median and minimum and maximum values. The variables were pair-wised compared by the Wilcoxon test. The differences were considered statistically significant when a two-tailed P-value was less than 5%. At baseline, median (min-max) of daily steps was 7295 (4700–14752 steps), whereas it was 11772 (8998–18620 steps) after the intervention (p=0.0001). On CPX, time until AT onset was higher after (359s; 179-521s) than before daily steps improvement (340s; 208-436s) (p=0.027). Similarly, the distance attained at AT was higher after (398.6m; 165.6–637.5m) than before the intervention (372.2m; 197.8–528.8m) (p=0.014). The increment of 3500 steps/day above baseline, during three weeks, was effective for improving exercise tolerance at AT.
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| format | Article |
| id | doaj-art-0af0569fd84047d58e7fe232e91ff50e |
| institution | DOAJ |
| issn | 1413-3482 2317-1634 |
| language | English |
| publishDate | 2014-02-01 |
| publisher | Sociedade Brasileira de Atividade Física e Saúde |
| record_format | Article |
| series | Revista Brasileira de Atividade Física e Saúde |
| spelling | doaj-art-0af0569fd84047d58e7fe232e91ff50e2025-08-20T02:51:34ZengSociedade Brasileira de Atividade Física e SaúdeRevista Brasileira de Atividade Física e Saúde1413-34822317-16342014-02-0119110.12820/rbafs.v.19n1p98Short-term daily steps increment enhances submaximal exercise tolerance in healthy insuficiently active menLuiz Porto0Keila Fontana1Guilherme Molina2Guilherme Rocco3Luiz Junqueira Jr.4Faculty of Physical Education, Cardiovascular Laboratory - Faculty of Medicine and Postgraduate Course of Medical Sciences, University of Brasilia, Brasilia, DF, BrazilUniversity of Brasilia Faculty of Physical Education and Postgraduate Course of Physical Education, Brasilia, DF, BrazilFaculty of Physical Education, Cardiovascular Laboratory - Faculty of Medicine - University of Brasilia, Brasilia, DF, BrazilUniversity of Brasilia Faculty of Physical Education and Postgraduate Course of Physical Education, Brasilia, DF, BrazilCardiovascular Laboratory, Cardiology Division, Clinical Medicine Area and Postgraduate Course of Medical Sciences, University of Brasilia Faculty of Medicine, Brasilia, DF, BrazilThe 10000 steps/day message has been proposed as a minimum steps/day target for healthy adults. Nevertheless, this target does not seem feasible as an initial goal for inactive adults. New strategies to progressively increase daily steps should be evaluated. The study evaluated the effectiveness of increase a pedometer-measured 3500 steps/day on physical performance at anaerobic threshold (AT). Nineteen healthy insufficiently active men, 19-46 yrs, wore a pedometer for 2 weeks to quantify their habitual daily steps at baseline. Afterwards, subjects were instructed to increase 3500 steps/day above baseline during 3 weeks (intervention). Cardiopulmonary exercise stress tests (CPX) were performed before and after the intervention. Submaximal exercise tolerance was analyzed by the heart rate at AT (HR-AT), the oxygen uptake at AT (VO2-AT), the time spent on CPX until AT onset and the reached distance. Nonparametric statistics were applied, expressing the results as median and minimum and maximum values. The variables were pair-wised compared by the Wilcoxon test. The differences were considered statistically significant when a two-tailed P-value was less than 5%. At baseline, median (min-max) of daily steps was 7295 (4700–14752 steps), whereas it was 11772 (8998–18620 steps) after the intervention (p=0.0001). On CPX, time until AT onset was higher after (359s; 179-521s) than before daily steps improvement (340s; 208-436s) (p=0.027). Similarly, the distance attained at AT was higher after (398.6m; 165.6–637.5m) than before the intervention (372.2m; 197.8–528.8m) (p=0.014). The increment of 3500 steps/day above baseline, during three weeks, was effective for improving exercise tolerance at AT. https://rbafs.org.br/RBAFS/article/view/3277WalkingPedometerPhysical activityInactivityHealth promotion |
| spellingShingle | Luiz Porto Keila Fontana Guilherme Molina Guilherme Rocco Luiz Junqueira Jr. Short-term daily steps increment enhances submaximal exercise tolerance in healthy insuficiently active men Revista Brasileira de Atividade Física e Saúde Walking Pedometer Physical activity Inactivity Health promotion |
| title | Short-term daily steps increment enhances submaximal exercise tolerance in healthy insuficiently active men |
| title_full | Short-term daily steps increment enhances submaximal exercise tolerance in healthy insuficiently active men |
| title_fullStr | Short-term daily steps increment enhances submaximal exercise tolerance in healthy insuficiently active men |
| title_full_unstemmed | Short-term daily steps increment enhances submaximal exercise tolerance in healthy insuficiently active men |
| title_short | Short-term daily steps increment enhances submaximal exercise tolerance in healthy insuficiently active men |
| title_sort | short term daily steps increment enhances submaximal exercise tolerance in healthy insuficiently active men |
| topic | Walking Pedometer Physical activity Inactivity Health promotion |
| url | https://rbafs.org.br/RBAFS/article/view/3277 |
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