This routine is for you if your hamstrings — the muscles that run along the back of your thighs — feel tight, stiff, or uncomfortable when you bend forward or straighten your legs. It is a great starting point if you are new to stretching and want to move more freely in everyday life, whether that means bending down easily, walking without tension, or just feeling less stiff by the end of the day.
What the research says
Here is what the current research suggests, honestly and without overstatement. Several studies have looked at different ways to improve flexibility, including holding still stretches (called static stretching), moving stretches (called dynamic stretching), and using a foam roller — a firm cylindrical tool you roll slowly over a muscle. The research suggests that static stretching, when done regularly over time, can meaningfully improve how far your muscles can stretch. One large review found that how often you stretch, how hard you push, and how long you do it all seem to matter, though researchers note there is still no single agreed-upon perfect formula. Dynamic stretching — where you move your body through a range of motion rather than holding still — has also shown promise. One study found it may improve hamstring flexibility and reduce muscle stiffness for a meaningful period after you finish stretching. Foam rolling has been studied as a warm-up tool, and some research suggests it may offer flexibility benefits similar to stretching, though the evidence is still developing. The honest picture: these approaches all show real promise, but research is ongoing and results vary from person to person.
Key findings
A large review of studies found that static stretching — holding a stretch still for a set amount of time — can improve flexibility, and that factors like how often you stretch and for how long appear to influence the results. The researchers noted there is still no agreed-upon perfect dose, but regular practice matters.
One study found that dynamic stretching — moving through a stretch rather than holding it — may improve hamstring flexibility and reduce muscle stiffness, with effects lasting for a meaningful window of time after the session ends.
A study comparing foam rolling with static stretching during a warm-up found that foam rolling showed some flexibility benefits, though the researchers noted uncertainty about whether it fully replaces traditional stretching.
A study comparing foam rolling directly with another stretching method in athletes found similar improvements in hamstring range of motion — how far the muscle can comfortably move — for both approaches.