Exploration of Heart Rate Recovery After Maximal Treadmill and Three-Minute All-Out Shuttle Tests in Firefighters
The purpose of this study was to compare heart rate recovery (HRR) after a maximal treadmill (MAX-TM) and three-minute all-out (3MT) test between firefighters (FF) and a control (CON) group. Nine male CON and nine male FF participants completed height (m), weight (kg), body fat percent (BF%), normal...
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MDPI AG
2025-01-01
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| Series: | Fire |
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| Online Access: | https://www.mdpi.com/2571-6255/8/1/20 |
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| author | Benjamin J. Mendelson Kyle T. Ebersole Scott D. Brau Nathan T. Ebersole |
| author_facet | Benjamin J. Mendelson Kyle T. Ebersole Scott D. Brau Nathan T. Ebersole |
| author_sort | Benjamin J. Mendelson |
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| description | The purpose of this study was to compare heart rate recovery (HRR) after a maximal treadmill (MAX-TM) and three-minute all-out (3MT) test between firefighters (FF) and a control (CON) group. Nine male CON and nine male FF participants completed height (m), weight (kg), body fat percent (BF%), normalized handgrip (GRIP<sub>NORM</sub>, kg/kg), and MAX-TM with direct gas analysis to capture aerobic capacity (VO<sub>2PEAK</sub>, mL/kg/min). A shuttle-sprint 3MT was used to measure critical velocity (CV, m/s) and <i>D</i>′ (m). Non-linear models determined HR decay (<i>HRR<sub>τ</sub></i>), HR asymptote (<i>HR<sub>∞</sub></i>), and HR amplitude (<i>HR<sub>amp</sub></i>). Two-way GROUP (FF vs. CON) by TEST (MAX-TM vs. 3MT) repeated measures ANOVAs indicated a significant TEST (<i>F</i> = 7.004, <i>p</i> = 0.018) effect on <i>HR<sub>amp</sub></i>. When divided by VO<sub>2PEAK</sub> classification (FITNESS), a significant TEST effect was observed (<i>F</i> = 7.661, <i>p</i> = 0.014) on <i>HR<sub>amp</sub></i>. VO<sub>2PEAK</sub> was significantly related to CV (<i>r</i> = 0.583, <i>p</i> = 0.011), GRIP<sub>NORM</sub> (<i>r</i> = 0.668, <i>p</i> = 0.002), and BF% (<i>r</i> = −0.890, <i>p</i> < 0.001). Complete autonomic nervous system recovery may depend on the intensity of task demands and cardiorespiratory fitness. |
| format | Article |
| id | doaj-art-b8fe59980caf4fa4b6f89b308c2b1ce5 |
| institution | Kabale University |
| issn | 2571-6255 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Fire |
| spelling | doaj-art-b8fe59980caf4fa4b6f89b308c2b1ce52025-01-24T13:32:19ZengMDPI AGFire2571-62552025-01-01812010.3390/fire8010020Exploration of Heart Rate Recovery After Maximal Treadmill and Three-Minute All-Out Shuttle Tests in FirefightersBenjamin J. Mendelson0Kyle T. Ebersole1Scott D. Brau2Nathan T. Ebersole3Human Performance & Sport Physiology Laboratory, School of Rehabilitation Sciences & Technology, University of Wisconsin-Milwaukee, Milwaukee, WI 53211, USAHuman Performance & Sport Physiology Laboratory, School of Rehabilitation Sciences & Technology, University of Wisconsin-Milwaukee, Milwaukee, WI 53211, USAHuman Performance & Sport Physiology Laboratory, School of Rehabilitation Sciences & Technology, University of Wisconsin-Milwaukee, Milwaukee, WI 53211, USAHuman Performance & Sport Physiology Laboratory, School of Rehabilitation Sciences & Technology, University of Wisconsin-Milwaukee, Milwaukee, WI 53211, USAThe purpose of this study was to compare heart rate recovery (HRR) after a maximal treadmill (MAX-TM) and three-minute all-out (3MT) test between firefighters (FF) and a control (CON) group. Nine male CON and nine male FF participants completed height (m), weight (kg), body fat percent (BF%), normalized handgrip (GRIP<sub>NORM</sub>, kg/kg), and MAX-TM with direct gas analysis to capture aerobic capacity (VO<sub>2PEAK</sub>, mL/kg/min). A shuttle-sprint 3MT was used to measure critical velocity (CV, m/s) and <i>D</i>′ (m). Non-linear models determined HR decay (<i>HRR<sub>τ</sub></i>), HR asymptote (<i>HR<sub>∞</sub></i>), and HR amplitude (<i>HR<sub>amp</sub></i>). Two-way GROUP (FF vs. CON) by TEST (MAX-TM vs. 3MT) repeated measures ANOVAs indicated a significant TEST (<i>F</i> = 7.004, <i>p</i> = 0.018) effect on <i>HR<sub>amp</sub></i>. When divided by VO<sub>2PEAK</sub> classification (FITNESS), a significant TEST effect was observed (<i>F</i> = 7.661, <i>p</i> = 0.014) on <i>HR<sub>amp</sub></i>. VO<sub>2PEAK</sub> was significantly related to CV (<i>r</i> = 0.583, <i>p</i> = 0.011), GRIP<sub>NORM</sub> (<i>r</i> = 0.668, <i>p</i> = 0.002), and BF% (<i>r</i> = −0.890, <i>p</i> < 0.001). Complete autonomic nervous system recovery may depend on the intensity of task demands and cardiorespiratory fitness.https://www.mdpi.com/2571-6255/8/1/20heart rate recoverywork capacityfirefightercritical velocity |
| spellingShingle | Benjamin J. Mendelson Kyle T. Ebersole Scott D. Brau Nathan T. Ebersole Exploration of Heart Rate Recovery After Maximal Treadmill and Three-Minute All-Out Shuttle Tests in Firefighters Fire heart rate recovery work capacity firefighter critical velocity |
| title | Exploration of Heart Rate Recovery After Maximal Treadmill and Three-Minute All-Out Shuttle Tests in Firefighters |
| title_full | Exploration of Heart Rate Recovery After Maximal Treadmill and Three-Minute All-Out Shuttle Tests in Firefighters |
| title_fullStr | Exploration of Heart Rate Recovery After Maximal Treadmill and Three-Minute All-Out Shuttle Tests in Firefighters |
| title_full_unstemmed | Exploration of Heart Rate Recovery After Maximal Treadmill and Three-Minute All-Out Shuttle Tests in Firefighters |
| title_short | Exploration of Heart Rate Recovery After Maximal Treadmill and Three-Minute All-Out Shuttle Tests in Firefighters |
| title_sort | exploration of heart rate recovery after maximal treadmill and three minute all out shuttle tests in firefighters |
| topic | heart rate recovery work capacity firefighter critical velocity |
| url | https://www.mdpi.com/2571-6255/8/1/20 |
| work_keys_str_mv | AT benjaminjmendelson explorationofheartraterecoveryaftermaximaltreadmillandthreeminutealloutshuttletestsinfirefighters AT kyletebersole explorationofheartraterecoveryaftermaximaltreadmillandthreeminutealloutshuttletestsinfirefighters AT scottdbrau explorationofheartraterecoveryaftermaximaltreadmillandthreeminutealloutshuttletestsinfirefighters AT nathantebersole explorationofheartraterecoveryaftermaximaltreadmillandthreeminutealloutshuttletestsinfirefighters |