Abstract
Purpose
This study compared the adaptive responses to two concurrent training programmes frequently used in professional soccer.
Methods
Fifteen youth soccer players (17.3 ± 1.6 years, 1.82 ± 0.06 m, 77.0 ± 7.3 kg; VO2 peak, 62.0 ± 4.7 ml−1 kg−1 min−1) who compete in the English Premier League volunteered for this study. In addition to completing their habitual training practices, the participants were asked to alter the organisation concurrent training by performing strength (S) training either prior to (S + E, n = 8) or after (E + S, n = 7) soccer-specific endurance training (E) 2d wk−1 for 5 wk−1.
Results
With the exception of 30 m sprint, IMVC PF, quadriceps strength (60°/sCON, 180°/sCON, 120°/sECC) pooled data revealed training effects across all other performances measures (P < 0.05). Whilst ANCOVA indicated no significant interaction effects for training condition, the difference between the means divided by the pooled standard deviation demonstrated large effect sizes in the E + S condition for in HBS 1-RM [S + E vs E + S; −0.54 (9.6 %) vs −1.79 (19.6 %)], AoP-M [−0.72 (7.9 %) vs −1.76 (14.4 %)], SJ [−0.56, (4.4 %), vs −1.08, (8.1 %)], IMVC-LR; [−0.50, (20.3 %) vs −1.05 (27.3 %)], isokinetic hamstring strength 60°/s CON [−0.64, (12.2 %) vs −0.95 (19.2 %)], 120°/sECC [−0.78 (27.9 %) vs −1.55 (23.3 %)] and isokinetic quadriceps strength 180°/s CON [−0.23 (2.5 %) vs −1.52 (13.2 %)].
Conclusion
Results suggest the organisation of concurrent training, recovery time allocated between training bouts and the availability nutrition may be able to modulate small but clinically significant changes in physical performance parameters associated with match-play. This may have practical implications for practitioners who prescribe same day concurrent training protocols.
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Abbreviations
- S + E :
-
Strength-endurance scenario
- E + S :
-
Endurance-strength scenario
- HBS 1RM:
-
Half back squat 1-RM
- IMVC PF:
-
Isometric MVC peak force
- IMVC LR:
-
Isometric MVC loading rate
- Quad Con60:
-
Concentric quadriceps (60°/s)
- Quad Con180:
-
Concentric quadriceps (180°/s)
- Quad Ecc120:
-
Eccentric quadriceps (120°/s)
- Ham Con60:
-
Concentric hamstrings (60°/s)
- Ham Con180:
-
Concentric hamstrings (180°/s)
- Ham Ecc120:
-
Eccentric hamstrings (120°/s)
- SJ:
-
Squat Jump
- CMJ:
-
Countermovement jump
- MT-D:
-
Muscle thickness (distal)
- MT-M:
-
Muscle thickness (mid)
- MT-P:
-
Muscle thickness (proximal)
- AoP-M:
-
Angle of pennation (Mid)
- FL-M:
-
Fascicule length (Mid)
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Acknowledgments
This project was internally funded by the Wolverhampton Wanderers Football Club, England. The authors have no conflict of interest.
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Communicated by Peter Krustrup.
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Enright, K., Morton, J., Iga, J. et al. The effect of concurrent training organisation in youth elite soccer players. Eur J Appl Physiol 115, 2367–2381 (2015). https://doi.org/10.1007/s00421-015-3218-5
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DOI: https://doi.org/10.1007/s00421-015-3218-5