Strong Support
descriptive
Analysis v2
History

When performing bench presses to exhaustion at 70% of maximum strength, two different training styles—focusing on bar speed versus controlled movement tempo—produce the same amount of anaerobic...

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Pro
0
Against

Mechanism

Synthesis from 1 study

How it works

Lifting faster makes your muscles use more oxygen during the workout, so they don’t need to rely as much on the energy system that causes fatigue. Even though you do more total work, the amount of fatigue-causing energy produced stays the same — which is why both methods feel equally hard at...

Most probable mechanism

In Simple Terms

When you lift the weight quickly, your muscles need energy faster, so your body uses more oxygen to make energy during the lift. This lets you do more reps without needing to rely more on the anaerobic system that produces fatigue. Even though you do more total work, the amount of energy made without oxygen stays the same because the oxygen system picks up the extra load.

Causal chain
1

Maximal concentric velocity increases the rate of muscle contraction and power output, raising the immediate energy demand per unit time.

which leads to
2

The increased power output elevates the demand for ATP regeneration beyond the capacity of immediate anaerobic stores, requiring faster oxygen delivery to mitochondria.

which leads to
3

Increased oxygen delivery and utilization shift the relative energy contribution from anaerobic to aerobic metabolism, sustaining ATP production without increasing lactate or H+ accumulation.

which leads to
4

Sustained aerobic ATP production allows more repetitions to be completed before fatigue limits performance, increasing total volume load without increasing anaerobic energy expenditure.

Evidence from Studies

Supporting (1)

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Contradicting (0)

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No contradicting evidence found

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