The Claim

In overweight, sedentary adults with moderate dyslipidemia, 8 months of aerobic exercise equivalent to 19.2 km per week at 75% peak oxygen uptake significantly reduces visceral fat by approximately 16 cm², liver fat (as indicated by increased liver density), alanine aminotransferase levels by 4.3 U/L, and fasting insulin resistance (HOMA) by 0.40 units, and is more effective than resistance training for improving these metabolic risk markers.

Source: Effects of aerobic vs. resistance training on visceral and liver fat stores, liver enzymes, and insulin resistance by HOMA in overweight adults from STRRIDE AT/RT.

What the research says

Supports is higher

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

Supports
67score
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.

Cause and effect
1 study reviewed
In plain English

In overweight, sedentary adults with moderate dyslipidemia, 8 months of aerobic exercise at 75% peak oxygen uptake reduces visceral fat by 16 cm², liver fat, alanine aminotransferase levels by 4.3 U/L, and fasting insulin resistance by 0.40 HOMA units, and produces greater improvements than resistance training.

See the scientific wording

In overweight, sedentary adults with moderate dyslipidemia, 8 months of aerobic exercise equivalent to 19.2 km per week at 75% peak oxygen uptake significantly reduces visceral fat by approximately 16 cm², liver fat (as indicated by increased liver density), alanine aminotransferase levels by 4.3 U/L, and fasting insulin resistance (HOMA) by 0.40 units, demonstrating that aerobic exercise is more effective than resistance training for improving these metabolic risk markers.

Why this might work

When a person does regular aerobic exercise, their body burns more energy, which pulls fat out of belly and liver stores. The liver starts breaking down this fat for fuel instead of storing it, which makes the liver healthier and less leaky. At the same time, muscles become better at taking up sugar from the blood, and the liver becomes more responsive to insulin. This lowers insulin resistance and reduces liver enzyme levels, all because the body is using fat as fuel instead of letting it build up in the wrong places.

Verified mechanismbased on 1 study

What the research says

1 study

  1. Study: Effects of aerobic vs. resistance training on visceral and liver fat stores, liver enzymes, and insulin resistance by HOMA in overweight adults from STRRIDE AT/RT.

    For overweight, inactive people, doing regular brisk walking or cycling for 8 months cut dangerous belly and liver fat, lowered a liver enzyme linked to fatty liver, and improved insulin response—while weight lifting alone didn’t. The study proves aerobic exercise works better than lifting weights for these health benefits.

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

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

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