High versus moderate intense running exercise - effects on cardiometabolic risk-factors in untrained males

Journal article


Publication Details

Author(s): Kemmler W, Lell M, Scharf M, Fraunberger L, von Stengel S
Journal: Deutsche Medizinische Wochenschrift
Publication year: 2015
Volume: 140
Journal issue: 1
Pages range: e7-e13
ISSN: 0012-0472


Abstract


Introduction | The philosophy on how to improve cardiometabolic risk factors most efficiently by endurance exercise is still controversial. To determine the effect of high-intensity (interval) training (HI[I]T) vs. moderate-intensity continuous exercise (MICE) training on cardiometabolic risk factors we conducted a 16-week crossover randomized controlled trial. Methods | 81 healthy untrained middle aged men were randomly assigned to a HI(I)T-group and a control-group that started the MICE running program after their control status. HI(I)T consisted of running exercise around or above the individual anaerobic threshold (? 80- 100 % HRmax); MICE focused on continuous running exercise at ? 65-77.5 % HRmax. Both protocols were comparable with respect to energy consumption. Study endpoints were cardiorespiratory fitness (VO2max), left ventricular mass index (LVMI), metabolic syndrome Z-score (MetS-Z-score), intima-media-thickness (IMT) and body composition. Results | VO2max-changes in this overweighed male cohort significantly (p=0.002) differ between HIIT (14.7 ± 9.3 %, p=0.001) and MICE (7.9 ± 7.4 %,p=0.001). LVMI, as determined via magnetic resonance imaging, significantly increased in both exercise groups (HIIT: 8.5 ± 5.4 %, p=0.001 vs. MICE: 5.3 ± 4.0 %, p=0.001), however the change was significantly more pronounced (p=0.005) in the HIIT-group. MetS-Z-score (HIIT: -2.06 ± 1.31, p=0.001 vs. MICE: -1.60 ± 1.77, p=0.001) and IMT (4.6 ± 5.9 % p=0.011 vs. 4.4 ± 8.1 %, p=0.019) did not show significant group-differences. Reductions of fat mass (-4.9 ± 9.0 %, p=0.010 vs. -9.5 ± 9.4, p=0.001) were significantly higher among the MICE-participants (p=0.034), however, the same was true (p=0.008) for lean body mass (0.5 ± 2.3 %, p=0.381 vs. -1.3 ± 2.0 %, p=0.003). Conclusion | In summary high-intensity interval training tends to impact cardiometabolic health more favorable compared with a moderate-intensity continuous endurance exercise protocol.



FAU Authors / FAU Editors

Fraunberger, Leonard Dr.
Lehrstuhl für Sportbiologie und Bewegungsmedizin
Kemmler, Wolfgang Prof. Dr.
Lehrstuhl für Medizinische Physik
Lell, Michael Prof. Dr.
Medizinische Fakultät
von Stengel, Simon PD Dr.
Lehrstuhl für Medizinische Physik


How to cite

APA:
Kemmler, W., Lell, M., Scharf, M., Fraunberger, L., & von Stengel, S. (2015). High versus moderate intense running exercise - effects on cardiometabolic risk-factors in untrained males. Deutsche Medizinische Wochenschrift, 140(1), e7-e13. https://dx.doi.org/10.1055/s-0040-100423

MLA:
Kemmler, Wolfgang, et al. "High versus moderate intense running exercise - effects on cardiometabolic risk-factors in untrained males." Deutsche Medizinische Wochenschrift 140.1 (2015): e7-e13.

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Last updated on 2018-19-04 at 03:58