The Claim

During a single set of bench press to failure at 70% 1RM, velocity-based training increases the relative contribution of aerobic energy to 41% compared to 33% with tempo-based training, while anaerobic contribution decreases correspondingly, indicating a shift in metabolic demand toward greater reliance on oxidative pathways despite similar total energy expenditure.

Source: Bench-Press Performed With a Velocity- and Tempo-Based Approach: Are There Differences in Volume Load, Time Under Tension, and Metabolic Demands?

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
55score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Quantitative
1 study reviewed
In plain English

When performing a single set of bench press to failure at 70% of maximum strength, using a velocity-based training method results in a higher proportion of energy coming from aerobic pathways (41%) compared to tempo-based training (33%), with a corresponding reduction in anaerobic energy use, even though the total energy used is the same.

See the scientific wording

During a single set of bench press to failure at 70% 1RM, velocity-based training increases the relative contribution of aerobic energy to 41% compared to 33% with tempo-based training, while anaerobic contribution decreases correspondingly, indicating a shift in metabolic demand toward greater reliance on oxidative pathways despite similar total energy expenditure.

Why this might work

When you push the bar up as fast as possible, your muscles need energy much quicker than when you move slowly. Your body can't make energy fast enough using its short-term fuel stores, so it turns on the oxygen-based system sooner and more strongly to keep going, even though the total energy used is the same.

Verified mechanismbased on 1 study

What the research says

1 study

  1. Study: Bench-Press Performed With a Velocity- and Tempo-Based Approach: Are There Differences in Volume Load, Time Under Tension, and Metabolic Demands?

    When lifting weights with a focus on moving the bar fast (velocity-based training), your body uses more oxygen for energy during the set compared to lifting at a slow, controlled pace — even though you’re doing the same total work. This means your muscles rely more on aerobic energy, like during a long run, and less on short bursts of energy.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

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