Applied sport sciences [neuro-physiology]……
“Moderate-intensity continuous training and high-intensity interval training are associated with different adjustments in motor output. Changes in motor unit peripheral properties may contribute to these adjustments, but this is yet to be elucidated. This study evaluated early changes in motor unit conduction velocity and motor unit action potential amplitude after 2 weeks of either high-intensity interval training or moderate-intensity continuous training.”
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“….6 training sessions over 14 days.”
“Hhigh-intensity interval training: 8 to 12 × 60-second intervals at 100% peak power output.”
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“Moderate-intensity continuous training: 90 to 120 minutes continuous cycling at ~65% V˙O 2peak.”
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“The high-intensity interval training group showed higher values of motor unit conduction velocity after training at all torque levels, moderate-intensity continuous training only displayed changes in moderate-intensity continuous training at low torque levels (10%–30% MVC).”
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“2 weeks of high-intensity interval training or moderate-intensity continuous training elicit differential changes in motor unit conduction velocity, likely due to the contrasting load and volume used in such training regimes. This new knowledge on the neuromuscular adaptations to training has implications for exercise prescription.”
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E.Martinez-Valdes, et al
Early Motor Unit Conduction Velocity Changes to High-Intensity Interval Training versus Continuous Training
Medicine & Science In Sports & Exercise — Volume 50 #11 — November 2018 — page 2339