The Claim
Eight weeks of high-intensity interval training performed three times per week improves fasting glucose, insulin, HOMA-IR, and lipid profile in healthy older adults aged 65–75, but does not significantly reduce liver enzymes ALT and AST.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
In healthy adults aged 65 to 75, performing high-intensity interval training three times a week for eight weeks lowers fasting glucose, insulin, and HOMA-IR levels and improves lipid profile, but does not lower ALT and AST liver enzyme levels.
See the scientific wording
Eight weeks of high-intensity interval training three times per week improves fasting glucose, insulin, HOMA-IR, and lipid profile in healthy older adults aged 65–75, but does not significantly reduce liver enzymes ALT and AST.
High-intensity workouts make muscle cells use more energy, which forces their power plants (mitochondria) to work harder and become more efficient. This improves how well insulin tells muscles to take in sugar from the blood and helps break down fats for fuel. Less damage from harmful molecules in the cells also lets insulin work better and reduces fat buildup in the blood. The liver does not get stressed enough by this process to release more enzymes into the blood.
What the research says
1 studyDoing high-intensity workouts three times a week for eight weeks helped older adults lower their blood sugar and bad cholesterol, but didn’t change their liver enzyme levels — just like the claim says.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.