Abstract
Purpose
This study was designed to examine whether concurrent sprint interval and strength training (CT) would result in compromised strength development when compared to strength training (ST) alone. In addition, maximal oxygen consumption (VO2max) and time to exhaustion (TTE) were measured to determine if sprint interval training (SIT) would augment aerobic performance.
Methods
Fourteen recreationally active men completed the study. ST (n = 7) was performed 2 days/week and CT (n = 7) was performed 4 days/week for 12 weeks. CT was separated by 24 h to reduce the influence of acute fatigue. Body composition was analyzed pre- and post-intervention. Anaerobic power, one-repetition maximum (1RM) lower- and upper-body strength, VO2max and TTE were analyzed pre-, mid-, and post-training. Training intensity for ST was set at 85 % 1RM and SIT trained using a modified Wingate protocol, adjusted to 20 s.
Results
Upper- and lower-body strength improved significantly after training (p < 0.001) with no difference between the groups (p > 0.05). VO2max increased 40.9 ± 8.4 to 42.3 ± 7.1 ml/kg/min (p < 0.05) for CT, whereas ST remained unchanged. A significant difference in VO2max (p < 0.05) was observed between groups post-intervention (CT: 42.3 ± 7.1 vs. ST: 36.0 ± 3.0 ml/kg/min). A main effect for time and group was observed in TTE (p < 0.05). A significant main effect for time was observed in average power (p < 0.05).
Conclusion
Preliminary findings suggest that performing concurrent sprint interval and strength training does not attenuate the strength response when compared to ST alone, while also improves aerobic performance measures, such as VO2max at the same time.
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Abbreviations
- 1RM:
-
One-repetition maximum
- ANOVA:
-
Analysis of variance
- BP:
-
Bench press
- BPM:
-
Beats per minute
- BS:
-
Back squat
- CT:
-
Concurrent training
- DEXA:
-
Dual energy X-ray absorptiometry
- ES:
-
Effect size
- GXT:
-
Graded exercise test
- ml/kg/min:
-
Milliliters per kilogram per minute
- RPM:
-
Revolutions per minute
- SIT:
-
Sprint interval training
- ST:
-
Strength training
- TTE:
-
Time to exhaustion
- VO2max:
-
Maximal oxygen consumption
- W:
-
Watts
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Acknowledgments
This study was funded by a Graduate Student Research grant to Gregory Cantrell from the National Strength and Conditioning Association.
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The authors declare that they have no conflict of interest.
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Communicated by Michael Lindinger.
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Cantrell, G.S., Schilling, B.K., Paquette, M.R. et al. Maximal strength, power, and aerobic endurance adaptations to concurrent strength and sprint interval training. Eur J Appl Physiol 114, 763–771 (2014). https://doi.org/10.1007/s00421-013-2811-8
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DOI: https://doi.org/10.1007/s00421-013-2811-8