Physical working capacity and maximal steady state of heart rate
The objectives of this study were to determine whether the power output measured by physical working capacity at threshold heart rate (PWCTHR) was equivalent to power output at the maximal steady state of heart rate (MSSHR), and to analyze the infuence of exercise duration on the calculation of PWCT...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Universidade Federal de Santa Catarina
2010-01-01
|
| Series: | Revista Brasileira de Cineantropometria e Desempenho Humano |
| Online Access: | https://periodicos.ufsc.br/index.php/rbcdh/article/view/13011 |
| _version_ | 1819117030862749696 |
|---|---|
| author | Eduardo Rumenig Fábio Yuzo Nakamura Maria Augusta Pedutti Dal'Molin Kiss Rômulo Cássio de Moraes Bertuzzi |
| author_facet | Eduardo Rumenig Fábio Yuzo Nakamura Maria Augusta Pedutti Dal'Molin Kiss Rômulo Cássio de Moraes Bertuzzi |
| author_sort | Eduardo Rumenig |
| collection | DOAJ |
| description | The objectives of this study were to determine whether the power output measured by physical working capacity at threshold heart rate (PWCTHR) was equivalent to power output at the maximal steady state of heart rate (MSSHR), and to analyze the infuence of exercise duration on the calculation of PWCTHR. Seven subjects were submitted to a maximal progressive test and five bouts at constant power relative to the second metabolic threshold (Lim2). Heart rate (HR) and HR variability were estimated by linear regression and Poincaré plotting, respectively. There was a signifcant difference between PWCTHR and MSSHR, irrespective of the intensity used. Additionally, intensities higher than 50% of Lim2 did not result in HR stabilization. However, the latter fnding did not depend on cardiovascular autonomic control since there was no difference in SD1 or SD1/SD2 as a function of duration of the effort. Thus, PWCTHR does not represent MSSHR in physically active young adults. Furthermore, the lack of HR stabilization seems to be independent of neural mechanisms. |
| first_indexed | 2024-12-22T05:26:30Z |
| format | Article |
| id | doaj.art-b45acf9a4699455faa4587dcf44497e9 |
| institution | Directory Open Access Journal |
| issn | 1415-8426 1980-0037 |
| language | English |
| last_indexed | 2024-12-22T05:26:30Z |
| publishDate | 2010-01-01 |
| publisher | Universidade Federal de Santa Catarina |
| record_format | Article |
| series | Revista Brasileira de Cineantropometria e Desempenho Humano |
| spelling | doaj.art-b45acf9a4699455faa4587dcf44497e92022-12-21T18:37:34ZengUniversidade Federal de Santa CatarinaRevista Brasileira de Cineantropometria e Desempenho Humano1415-84261980-00372010-01-0112317117810.5007/1980-0037.2010v12n3p17110838Physical working capacity and maximal steady state of heart rateEduardo Rumenig0Fábio Yuzo Nakamura1Maria Augusta Pedutti Dal'Molin Kiss2Rômulo Cássio de Moraes Bertuzzi3Universidade de São PauloUniversidade Estadual de LondrinaUniversidade de São PauloUniversidade de São PauloThe objectives of this study were to determine whether the power output measured by physical working capacity at threshold heart rate (PWCTHR) was equivalent to power output at the maximal steady state of heart rate (MSSHR), and to analyze the infuence of exercise duration on the calculation of PWCTHR. Seven subjects were submitted to a maximal progressive test and five bouts at constant power relative to the second metabolic threshold (Lim2). Heart rate (HR) and HR variability were estimated by linear regression and Poincaré plotting, respectively. There was a signifcant difference between PWCTHR and MSSHR, irrespective of the intensity used. Additionally, intensities higher than 50% of Lim2 did not result in HR stabilization. However, the latter fnding did not depend on cardiovascular autonomic control since there was no difference in SD1 or SD1/SD2 as a function of duration of the effort. Thus, PWCTHR does not represent MSSHR in physically active young adults. Furthermore, the lack of HR stabilization seems to be independent of neural mechanisms.https://periodicos.ufsc.br/index.php/rbcdh/article/view/13011 |
| spellingShingle | Eduardo Rumenig Fábio Yuzo Nakamura Maria Augusta Pedutti Dal'Molin Kiss Rômulo Cássio de Moraes Bertuzzi Physical working capacity and maximal steady state of heart rate Revista Brasileira de Cineantropometria e Desempenho Humano |
| title | Physical working capacity and maximal steady state of heart rate |
| title_full | Physical working capacity and maximal steady state of heart rate |
| title_fullStr | Physical working capacity and maximal steady state of heart rate |
| title_full_unstemmed | Physical working capacity and maximal steady state of heart rate |
| title_short | Physical working capacity and maximal steady state of heart rate |
| title_sort | physical working capacity and maximal steady state of heart rate |
| url | https://periodicos.ufsc.br/index.php/rbcdh/article/view/13011 |
| work_keys_str_mv | AT eduardorumenig physicalworkingcapacityandmaximalsteadystateofheartrate AT fabioyuzonakamura physicalworkingcapacityandmaximalsteadystateofheartrate AT mariaaugustapeduttidalmolinkiss physicalworkingcapacityandmaximalsteadystateofheartrate AT romulocassiodemoraesbertuzzi physicalworkingcapacityandmaximalsteadystateofheartrate |