Holding stretches for a few weeks in a row can actually make your muscles a little stronger and bigger, even if you don't do traditional weightlifting. This happens because keeping the muscle under tension for a long time signals it to adapt and grow.

Doing static stretches for an hour every day for six weeks can actually build muscle in your calf, just as effectively as traditional weightlifting. This means that if you're looking to increase calf size, long stretching sessions might work just as well as lifting weights.

Both static stretching and traditional weightlifting can build muscle and strength, but lifting weights gets you better results in less time. Because of this, weightlifting is generally recommended for most people, while stretching is better suited for those who can't handle heavy weights.

Doing one hour of static stretching every day for six weeks can actually make your calf muscles grow bigger, not just more flexible. This shows that holding stretches puts enough tension on the muscle to make it build new tissue, which goes against the old idea that stretching only helps you bend better.

Doing static stretching for five weeks, twice a week for half an hour, can slightly but noticeably make your calf and ankle muscles stronger. This happens because stretching helps your nerves and muscles work together better, rather than actually making the muscle tissue itself bigger.

Does just holding a stretch for an hour a day actually build calf muscle like weightlifting does? This claim suggests that simply lengthening your muscles passively over six weeks can make them grow thicker, similar to how traditional strength training works.