Increased oxygen uptake in well-trained runners during uphill high intensity running intervals: A randomized crossover testing
The time spent above 90% of maximal oxygen uptake (V̇O2max) during high-intensity interval training (HIIT) sessions is intended to be maximized to improve V̇O2max. Since uphill running serves as a promising means to increase metabolic cost, we compared even and moderately inclined running in terms o...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-02-01
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| Series: | Frontiers in Physiology |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fphys.2023.1117314/full |
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| author | Steffen Held Steffen Held Ludwig Rappelt Ludwig Rappelt René Giesen Tim Wiedenmann Jan-Philip Deutsch Pamela Wicker Lars Donath |
| author_facet | Steffen Held Steffen Held Ludwig Rappelt Ludwig Rappelt René Giesen Tim Wiedenmann Jan-Philip Deutsch Pamela Wicker Lars Donath |
| author_sort | Steffen Held |
| collection | DOAJ |
| description | The time spent above 90% of maximal oxygen uptake (V̇O2max) during high-intensity interval training (HIIT) sessions is intended to be maximized to improve V̇O2max. Since uphill running serves as a promising means to increase metabolic cost, we compared even and moderately inclined running in terms of time ≥90% V̇O2max and its corresponding physiological surrogates. Seventeen well-trained runners (8 females & 9 males; 25.8 ± 6.8yrs; 1.75 ± 0.08m; 63.2 ± 8.4kg; V̇O2max: 63.3 ± 4.2 ml/min/kg) randomly completed both a horizontal (1% incline) and uphill (8% incline) HIIT protocol (4-times 5min, with 90s rest). Mean oxygen uptake (V̇O2mean), peak oxygen uptake (V̇O2peak), lactate, heart rate (HR), and perceived exertion (RPE) were measured. Uphill HIIT revealed higher (p ≤ 0.012; partial eta-squared (pes) ≥ 0.351) V̇O2mean (uphill: 3.3 ± 0.6 vs. horizontal: 3.2 ± 0.5 L/min; standardized mean difference (SMD) = 0.15), V̇O2peak (uphill: 4.0 ± 0.7 vs. horizontal: 3.8 ± 0.7 L/min; SMD = 0.19), and accumulated time ≥90% V̇O2max (uphill: 9.1 ± 4.6 vs. horizontal: 6.4 ± 4.0 min; SMD = 0.62) compared to even HIIT. Lactate, HR, and RPE responses did not show mode*time rANOVA interaction effects (p ≥ 0.097; pes ≤0.14). Compared to horizontal HIIT, moderate uphill HIIT revealed higher fractions of V̇O2max at comparable perceived efforts, heartrate and lactate response. Therefore, moderate uphill HiiT notably increased time spent above 90% V̇O2max. |
| first_indexed | 2024-04-10T10:02:08Z |
| format | Article |
| id | doaj.art-41ab446c5999453bbc324d4d83d0d219 |
| institution | Directory Open Access Journal |
| issn | 1664-042X |
| language | English |
| last_indexed | 2024-04-10T10:02:08Z |
| publishDate | 2023-02-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Physiology |
| spelling | doaj.art-41ab446c5999453bbc324d4d83d0d2192023-02-16T05:33:40ZengFrontiers Media S.A.Frontiers in Physiology1664-042X2023-02-011410.3389/fphys.2023.11173141117314Increased oxygen uptake in well-trained runners during uphill high intensity running intervals: A randomized crossover testingSteffen Held0Steffen Held1Ludwig Rappelt2Ludwig Rappelt3René Giesen4Tim Wiedenmann5Jan-Philip Deutsch6Pamela Wicker7Lars Donath8Department of Intervention Research in Exercise Training, German Sport University Cologne, Cologne, GermanyDepartment of Fitness and Health, IST University of Applied Sciences, Duesseldorf, GermanyDepartment of Intervention Research in Exercise Training, German Sport University Cologne, Cologne, GermanyDepartment of Movement and Training Science, University of Wuppertal, Wuppertal, GermanyDepartment of Intervention Research in Exercise Training, German Sport University Cologne, Cologne, GermanyDepartment of Intervention Research in Exercise Training, German Sport University Cologne, Cologne, GermanyDepartment of Intervention Research in Exercise Training, German Sport University Cologne, Cologne, GermanyDepartment of Sports Science, Bielefeld University, Bielefeld, GermanyDepartment of Intervention Research in Exercise Training, German Sport University Cologne, Cologne, GermanyThe time spent above 90% of maximal oxygen uptake (V̇O2max) during high-intensity interval training (HIIT) sessions is intended to be maximized to improve V̇O2max. Since uphill running serves as a promising means to increase metabolic cost, we compared even and moderately inclined running in terms of time ≥90% V̇O2max and its corresponding physiological surrogates. Seventeen well-trained runners (8 females & 9 males; 25.8 ± 6.8yrs; 1.75 ± 0.08m; 63.2 ± 8.4kg; V̇O2max: 63.3 ± 4.2 ml/min/kg) randomly completed both a horizontal (1% incline) and uphill (8% incline) HIIT protocol (4-times 5min, with 90s rest). Mean oxygen uptake (V̇O2mean), peak oxygen uptake (V̇O2peak), lactate, heart rate (HR), and perceived exertion (RPE) were measured. Uphill HIIT revealed higher (p ≤ 0.012; partial eta-squared (pes) ≥ 0.351) V̇O2mean (uphill: 3.3 ± 0.6 vs. horizontal: 3.2 ± 0.5 L/min; standardized mean difference (SMD) = 0.15), V̇O2peak (uphill: 4.0 ± 0.7 vs. horizontal: 3.8 ± 0.7 L/min; SMD = 0.19), and accumulated time ≥90% V̇O2max (uphill: 9.1 ± 4.6 vs. horizontal: 6.4 ± 4.0 min; SMD = 0.62) compared to even HIIT. Lactate, HR, and RPE responses did not show mode*time rANOVA interaction effects (p ≥ 0.097; pes ≤0.14). Compared to horizontal HIIT, moderate uphill HIIT revealed higher fractions of V̇O2max at comparable perceived efforts, heartrate and lactate response. Therefore, moderate uphill HiiT notably increased time spent above 90% V̇O2max.https://www.frontiersin.org/articles/10.3389/fphys.2023.1117314/fullinclineintervalsperformanceinjuryrunning |
| spellingShingle | Steffen Held Steffen Held Ludwig Rappelt Ludwig Rappelt René Giesen Tim Wiedenmann Jan-Philip Deutsch Pamela Wicker Lars Donath Increased oxygen uptake in well-trained runners during uphill high intensity running intervals: A randomized crossover testing Frontiers in Physiology incline intervals performance injury running |
| title | Increased oxygen uptake in well-trained runners during uphill high intensity running intervals: A randomized crossover testing |
| title_full | Increased oxygen uptake in well-trained runners during uphill high intensity running intervals: A randomized crossover testing |
| title_fullStr | Increased oxygen uptake in well-trained runners during uphill high intensity running intervals: A randomized crossover testing |
| title_full_unstemmed | Increased oxygen uptake in well-trained runners during uphill high intensity running intervals: A randomized crossover testing |
| title_short | Increased oxygen uptake in well-trained runners during uphill high intensity running intervals: A randomized crossover testing |
| title_sort | increased oxygen uptake in well trained runners during uphill high intensity running intervals a randomized crossover testing |
| topic | incline intervals performance injury running |
| url | https://www.frontiersin.org/articles/10.3389/fphys.2023.1117314/full |
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