Mixed
Enhanced Negative Work-based Training (ENT) does not significantly improve linear sprinting ability (10m and 30m) in semi-professional soccer players during the in-season period.
Do not rely on a single weekly flywheel session to improve your straight-line speed during the season. While it helps with change of direction and injury prevention, it does not significantly impact 10m or 30m sprint times in semi-professional players. Focus on specific speed training for linear sprinting.
No interaction was found for 10 m (F=3.122, p=0.168) or 30 m sprint (F=2.941, p=0.201) and neither ENT nor CON experienced decreases in 10 m or 30 m time.
Why this rating
Clear null result in an RCT, providing strong evidence that this specific protocol does not improve linear sprinting.
Source
Effects of in-season enhanced negative work-based vs traditional weight training on change of direction and hamstrings-to-quadriceps ratio in soccer players
Giuseppe Coratella et al. · Biology of Sport · 2019
DOI 10.5114/biolsport.2019.87045
More from this paper
- In-season Enhanced Negative Work-based Training (ENT) using a flywheel device significantly improves change of direction (COD) ability in semi-professional soccer players, whereas traditional weight training does not.Good
- Enhanced Negative Work-based Training (ENT) improves the hamstrings-to-quadriceps (H:Q) ratio in semi-professional soccer players, potentially reducing injury risk, while traditional weight training does not.Good
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