Stretching mouse leg muscles regularly for two weeks seemed to make the muscle fibers grow bigger, which could mean the muscles got stronger at a microscopic level.

7

Pro

0

Against

Evidence from Studies

Supporting (1)

7

Community contributions welcome

7

Efficacy of passive repetitive stretching of skeletal muscle on myofiber hypertrophy and genetic suppression on MAFbx, MuRF1, and myostatin

Cross-Sectional Study

Animal

2021 Dec

The study did the exact stretching routine described and found that it made muscle fibers bigger in mice, which means the claim is backed by the evidence.

Contradicting (0)

0

Community contributions welcome

No contradicting evidence found

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

Efficacy of passive repetitive stretching of skeletal muscle on myofiber hypertrophy and genetic suppression on MAFbx, MuRF1, and myostatin

Score: 7

DOI: 10.1007/s10974-021-09609-7

Similar Assertions

Stretching mouse leg muscles repeatedly seems to turn on a key switch inside the muscle cells that helps build new muscle protein.

7

0

78%

Stretching mouse leg muscles regularly seems to turn on genes that help build muscle and repair muscle cells.

7

0

77%

Stretching mice's leg muscles didn't change the number of muscle repair cells, suggesting their muscles still grew without using more of these cells.

7

0

74%