Scientists think that each nucleus in a muscle cell can only handle a certain amount of muscle tissue, and if the muscle wants to get bigger, it needs to bring in more nuclei from helper cells — otherwise, it can’t grow past a certain size.

0

Pro

1

Against

Evidence from Studies

Supporting (0)

0

Community contributions welcome

No supporting evidence found

Contradicting (1)

1

Community contributions welcome

1

The role of satellite cells in muscle hypertrophy

Narrative Review

Human

2014 Feb

Scientists used to think muscles needed new cell nuclei from stem cells to grow bigger, but this study found muscles can still grow even without those stem cells — so the old idea isn’t always true.

Gold Standard Evidence Needed

According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.

Source Study

The role of satellite cells in muscle hypertrophy

Score: 1

DOI: 10.1007/s10974-014-9376-y

Similar Assertions

When your muscles get bigger from lifting weights, tiny repair cells called satellite cells stick themselves onto muscle fibers to give them extra nuclei—like adding more workers to a factory—so the muscle can keep growing big and strong.

1

0

72%