A comparison of the heart rate deflection point by the S.Dmax method and the ventilatory threshold in sedentary men
Purpose: The aim of this study was to survey of the relationship between heart rate deflection point (HRDP)by the short distance maximum (S.Dmax) and second ventilatory threshold (VT2).Methods: Twenty-one sedentary men volunteers (mean age 19.9±1.31 years; height 173.4±5.3 cm; weight67.9±8.9 kg; max...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | fas |
| Published: |
Shahid Beheshti University
2018-08-01
|
| Series: | فیزیولوژی ورزش و فعالیت بدنی |
| Subjects: | |
| Online Access: | https://joeppa.sbu.ac.ir/article_98908_c72ecb13c4de0fa02731d9ef49e69b71.pdf |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849221385801433088 |
|---|---|
| author | Mehdi esbarzadeh Marefat siahkouhian Lotfali bolboli |
| author_facet | Mehdi esbarzadeh Marefat siahkouhian Lotfali bolboli |
| author_sort | Mehdi esbarzadeh |
| collection | DOAJ |
| description | Purpose: The aim of this study was to survey of the relationship between heart rate deflection point (HRDP)by the short distance maximum (S.Dmax) and second ventilatory threshold (VT2).Methods: Twenty-one sedentary men volunteers (mean age 19.9±1.31 years; height 173.4±5.3 cm; weight67.9±8.9 kg; maximum oxygen uptake 3.08±0.52 L.min-1) performed an incremental treadmill exercise test toexhaustion. To determine the HRDP, each subject heart rate was recorded by using a polar monitor andanalyzed by a designed computer program. Respiratory gases during the exercise test was measured with agas analyzing system. Data were analyzed using depended t-test, Bland and Altman plots and intraclasscorrelation coefficient.Results: The HRDP was noticed in all subjects. No significant difference (p > 0.05) between the heart rate, oxygenuptake, ventilation, tidal volume and respiratory rate corresponding to HRDP and VT2. Also, results of ICC andBland-Altman plots showed a good agreement between HR and VO2 measured at the HRDP and VT2.Conclusions: It could be concluded that S.Dmax method is an accurate and reliable alternative to the expensiveand time-consuming invasive methods. Therefore, the S.Dmax method can be used for the determination ofanaerobic threshold in healthy young men. |
| format | Article |
| id | doaj-art-1a9b9fec73e74781b7148c04ce2c484e |
| institution | Kabale University |
| issn | 2676-3710 2645-4041 |
| language | fas |
| publishDate | 2018-08-01 |
| publisher | Shahid Beheshti University |
| record_format | Article |
| series | فیزیولوژی ورزش و فعالیت بدنی |
| spelling | doaj-art-1a9b9fec73e74781b7148c04ce2c484e2024-11-15T04:08:05ZfasShahid Beheshti Universityفیزیولوژی ورزش و فعالیت بدنی2676-37102645-40412018-08-0111112913810.48308/joeppa.2018.9890898908A comparison of the heart rate deflection point by the S.Dmax method and the ventilatory threshold in sedentary menMehdi esbarzadeh0Marefat siahkouhian1Lotfali bolboli2Department of Physical Education & Sport Science, School of Education and Psychology, University of Mohaghegh Ardabili, Ardabil, IranDepartment of Physical Education & Sport Science, School of Education and Psychology, University of Mohaghegh Ardabili, Ardabil, IranDepartment of Physical Education & Sport Science, School of Education and Psychology, University of Mohaghegh Ardabili, Ardabil, IranPurpose: The aim of this study was to survey of the relationship between heart rate deflection point (HRDP)by the short distance maximum (S.Dmax) and second ventilatory threshold (VT2).Methods: Twenty-one sedentary men volunteers (mean age 19.9±1.31 years; height 173.4±5.3 cm; weight67.9±8.9 kg; maximum oxygen uptake 3.08±0.52 L.min-1) performed an incremental treadmill exercise test toexhaustion. To determine the HRDP, each subject heart rate was recorded by using a polar monitor andanalyzed by a designed computer program. Respiratory gases during the exercise test was measured with agas analyzing system. Data were analyzed using depended t-test, Bland and Altman plots and intraclasscorrelation coefficient.Results: The HRDP was noticed in all subjects. No significant difference (p > 0.05) between the heart rate, oxygenuptake, ventilation, tidal volume and respiratory rate corresponding to HRDP and VT2. Also, results of ICC andBland-Altman plots showed a good agreement between HR and VO2 measured at the HRDP and VT2.Conclusions: It could be concluded that S.Dmax method is an accurate and reliable alternative to the expensiveand time-consuming invasive methods. Therefore, the S.Dmax method can be used for the determination ofanaerobic threshold in healthy young men.https://joeppa.sbu.ac.ir/article_98908_c72ecb13c4de0fa02731d9ef49e69b71.pdfkeywords: anaerobic thresholdheart rate deflection points.dmax methodsecond ventilatory threshold |
| spellingShingle | Mehdi esbarzadeh Marefat siahkouhian Lotfali bolboli A comparison of the heart rate deflection point by the S.Dmax method and the ventilatory threshold in sedentary men فیزیولوژی ورزش و فعالیت بدنی keywords: anaerobic threshold heart rate deflection point s.dmax method second ventilatory threshold |
| title | A comparison of the heart rate deflection point by the S.Dmax method and the ventilatory threshold in sedentary men |
| title_full | A comparison of the heart rate deflection point by the S.Dmax method and the ventilatory threshold in sedentary men |
| title_fullStr | A comparison of the heart rate deflection point by the S.Dmax method and the ventilatory threshold in sedentary men |
| title_full_unstemmed | A comparison of the heart rate deflection point by the S.Dmax method and the ventilatory threshold in sedentary men |
| title_short | A comparison of the heart rate deflection point by the S.Dmax method and the ventilatory threshold in sedentary men |
| title_sort | comparison of the heart rate deflection point by the s dmax method and the ventilatory threshold in sedentary men |
| topic | keywords: anaerobic threshold heart rate deflection point s.dmax method second ventilatory threshold |
| url | https://joeppa.sbu.ac.ir/article_98908_c72ecb13c4de0fa02731d9ef49e69b71.pdf |
| work_keys_str_mv | AT mehdiesbarzadeh acomparisonoftheheartratedeflectionpointbythesdmaxmethodandtheventilatorythresholdinsedentarymen AT marefatsiahkouhian acomparisonoftheheartratedeflectionpointbythesdmaxmethodandtheventilatorythresholdinsedentarymen AT lotfalibolboli acomparisonoftheheartratedeflectionpointbythesdmaxmethodandtheventilatorythresholdinsedentarymen AT mehdiesbarzadeh comparisonoftheheartratedeflectionpointbythesdmaxmethodandtheventilatorythresholdinsedentarymen AT marefatsiahkouhian comparisonoftheheartratedeflectionpointbythesdmaxmethodandtheventilatorythresholdinsedentarymen AT lotfalibolboli comparisonoftheheartratedeflectionpointbythesdmaxmethodandtheventilatorythresholdinsedentarymen |