The Claim

Whether you do just compound lifts or add arm isolation moves, both ways help reduce arm fat a little bit — and neither is better than the other.

Source: Influence of Adding Single-Joint Exercise to a Multijoint Resistance Training Program in Untrained Young Women.

What the research says

Supports is higher

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

Supports
38score
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.

Description
1 study reviewed
In plain English

Whether you do just compound lifts or add arm isolation moves, both ways help reduce arm fat a little bit — and neither is better than the other.

See the scientific wording

Eight weeks of resistance training, whether with multijoint exercises alone or combined with single-joint exercises, leads to similar small reductions in biceps and triceps skinfold thickness in untrained young women, with no significant difference between groups.

What the research says

1 study
  1. Study: Influence of Adding Single-Joint Exercise to a Multijoint Resistance Training Program in Untrained Young Women.

    Both groups of women lost almost the same tiny amount of fat around their upper arms after 8 weeks of lifting weights, no matter if they did only big compound exercises or added isolated ones too.

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

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