The Claim

Resistance training is energetically inefficient in terms of total caloric expenditure due to predominant eccentric muscle actions and prolonged inter-set rest periods.

Source: You need this many carbs to maximize muscle growth

What the research says

Challenges is higher

Challenge is ahead, but a single strong supporting study can change this.

Supports
0score
Challenges
33score

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

Assertion
2 studies reviewed
In plain English

Lifting weights doesn't use much energy because it's mostly controlled lowering and long breaks between sets.

See the scientific wording

Resistance training is energetically inefficient in terms of total caloric expenditure due to predominant eccentric muscle actions and prolonged inter-set rest periods.

What the research says

2 studies
  1. Study: EPOC Comparison Between Isocaloric Bouts of Steady-State Aerobic, Intermittent Aerobic, and Resistance Training

    The study found that weight training burned just as many calories overall as cardio — and kept your body burning more calories for hours afterward. So, it’s not inefficient, as the claim says.

  2. Study: Skeletal Muscle Remodeling in Response to Eccentric vs. Concentric Loading: Morphological, Molecular, and Metabolic Adaptations

    The study found that eccentric movements (like lowering a weight) use less energy, not more, so they don’t make workouts inefficient — which directly contradicts the claim.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 2 supporting studies

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.