Key result
Eccentric resistance training produced trivial to large effect sizes for strength (-0.17 to 1.67), speed (-0.08 to 1.06), power (0.27 to 1.63), and change of direction (0.48 to 1.46).
Why the study?
Eccentric resistance training improves performance in various populations, but its specific effects on performance qualities in trained male team sport athletes needed to be determined.
Does eccentric resistance training improve performance qualities in trained male team sport athletes?
Systematic Review
Does eccentric resistance training improve performance qualities in trained male team sport athletes?
Effect estimate: Effect sizes ranging from -0.17 to 1.67 for strength, -0.08 to 1.06 for speed, 0.27 to 1.63 for power, and 0.48 to 1.46 for change of direction
Eccentric resistance training appears to be an effective stimulus for developing neuromuscular qualities in trained male team sport athletes.
May enhance neuromuscular qualities in male team athletes; leaves open protocol optimization given effect-size variability.
Eccentric resistance training has been shown to improve performance outcomes in a range of populations, making it a popular choice for practitioners. Evidence suggests that neuromuscular adaptations resulting from eccentric overload (EO) and accentuated eccentric loading (AEL) methods could benefit athletic populations competing in team sports. The purpose of this review was to determine the effects of eccentric resistance training on performance qualities in trained male team sport athletes. A systematic review was conducted using electronic databases PubMed, SPORTDiscus and Web of Science in May 2019. The literature search resulted in 1402 initial articles, with 14 included in the final analysis. Variables related to strength, speed, power and change of direction ability were extracted and effect sizes were calculated with a correction for small sample size. Trivial, moderate and large effect sizes were reported for strength (-0.17 to 1.67), speed (-0.08 to 1.06), power (0.27 to 1.63) and change of direction (0.48 to 1.46) outcomes. Eccentric resistance training appears to be an effective stimulus for developing neuromuscular qualities in trained male team sport athletes. However, the range of effect sizes, testing protocols and training interventions suggest that more research is needed to better implement this type of training in athletic populations.
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McNeill et al. (2019) conducted a systematic review in Trained male team sport athletes. Eccentric resistance training was evaluated on Performance qualities including strength, speed, power and change of direction ability (Effect sizes ranging from -0.17 to 1.67 for strength, -0.08 to 1.06 for speed, 0.27 to 1.63 for power, and 0.48 to 1.46 for change of direction). Eccentric resistance training produced trivial to large effect sizes for strength (-0.17 to 1.67), speed (-0.08 to 1.06), power (0.27 to 1.63), and change of direction (0.48 to 1.46).
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