How to touch your toes: what limits the reach, what the hamstring trials found, and a practical plan

To touch your toes with straight legs you need range at the hips. The studies on this page treat it as a hamstring-flexibility goal and measure it with a sit-and-reach test (how far you reach toward your feet, sitting with your legs straight) or with the angle your knee can straighten while your hip is bent, which is the same hamstring stretch measured in degrees.

This page covers what limits the reach, what two hamstring trials and a meta-analysis found about hold length and weeks, what a deadlift variation did against stretching, how to test yourself, and a practical plan. It doesn't give a number of days, because none of the studies cited here measured how long it takes to touch the toes. A full-body routine is on the stretching routine.

What limits the reach

The hamstrings are part of it. In 36 male recreational soccer players (about 23 years old; no women were included), stiffer hamstrings, measured with an ultrasound technique, went with a shorter sit-and-reach, in a moderate-to-large correlation. That held for two of the three hamstring muscles measured (semimembranosus and biceps femoris long head) but not the third (semitendinosus). The authors calculate that at most 25 percent of the variation in the reach is explained by muscle stiffness, and suggest tendon stiffness or stretch tolerance might account for some of the rest.¹ That was a single measurement in one group of men, not a training study.

The practical reading: stiffness is one part of the reach and tolerance may be another, so track the reach itself and not only how a stretch feels.

What the hamstring trials found

• How long to hold. In 57 adults (40 men, 17 women) aged 21 to 37 who had a 30-degree loss of knee extension with the hip bent, three groups stretched five days a week for 15, 30 or 60 seconds. After six weeks, 30 and 60 seconds were more effective than 15 seconds or no stretching, and there was no significant difference between 30 seconds and a minute.²
• Once or more a day. In 93 adults (61 men, 32 women) aged 21 to 39 with limited hamstring flexibility, four groups stretched for 30 or 60 seconds, once or three times a day, five days a week for six weeks, and a fifth group didn't stretch. The stretching groups gained more knee-extension range than the control, and longer or more frequent stretching added no further gain; the authors conclude that a 30-second hold is an effective duration.³
• Across 77 studies. The 2024 meta-analysis found stretching programs of at least two weeks increased range of motion with a moderate effect. Static holds and PNF stretching did better than ballistic or dynamic stretching, and the amount, intensity and frequency of stretching didn't play a significant role in how much range people gained.⁴

Both trials measured the knee-extension angle, not a toe touch, and both used adults aged 21 to 39, so they say nothing about children or older people. The guideline floor is the American College of Sports Medicine's 60 seconds total per major muscle group on two or more days a week,⁵ and the 2025 consensus panel suggests 2 to 3 sets a day of 30 to 120 seconds per muscle.⁶

Lifting through the range, too

In 18 healthy, physically active adults (five men and 13 women), eight weeks of two straight-legged exercises through a full range, a straight-leg barbell deadlift and a modified Jefferson curl standing on a box, improved the sit-and-reach as much as static stretching did, and built more strength.⁷ It was a small trial with six people per group, and six of the eight weeks were unsupervised. If you already lift, a straight-legged hip hinge such as the Romanian deadlift lowered through a full range is a reasonable thing to keep in your week beside the stretches; that's a practical reading, since the trial used different lifts, and not a recommendation from the authors.

How to test the reach

Sit on the floor with your legs straight and your feet against a wall or box, then reach toward your toes and note where your fingertips land (a ruler along the shin works). Test at the same time of day each week: in 67 recreationally active college students measured every two hours after waking, hamstring and lower-back flexibility were lowest at waking and highest 10 to 12 hours later.⁸ The method is practical; the time-of-day point comes from the study.

A practical plan

This is a practical plan built on the trials' dose, not a protocol they tested in this form:

1. Lying hamstring stretch: on your back, a towel or band around one foot, the leg raised with the knee nearly straight until you feel a clear pull at the back of the thigh. Hold 30 seconds, two rounds per leg, five days a week. That matches the 30-second, five-days-a-week group in the trials, which ran six weeks.^2,3
2. Seated reach: sit with your legs straight, back tall, and fold forward from the hips until you feel the same pull. Two holds of 30 seconds. Keep your knees as straight as is comfortable.
3. If you lift, a straight-legged hip hinge such as a light Romanian deadlift, lowered until you feel the hamstrings stretch. This is practical; the trial above used different lifts.
4. Retest weekly in the same position and write the number down.

Hold the stretch still, with no bouncing, since static and PNF stretching did better than ballistic stretching in the meta-analysis.⁴ Stay at a pull, not pain; if a stretch hurts, stop. I'm a fitness coach, not a doctor, so that's a question for a doctor or a physical therapist.

Common questions

How long does it take to touch your toes?

The trials ran six weeks and measured knee-extension angle, not toe touches, so this page has no day count to give. What the trials show is that regular holds over several weeks improved hamstring flexibility more than no stretching.^2,3

How long should you hold the stretch?

Thirty seconds was an effective hold in both trials, and longer holds or more frequent stretching gave no significant extra.^2,3 The guideline counts 60 seconds in total per muscle group, which two 30-second holds cover.⁵

Should I keep my knees straight?

The trials measured a straight-knee position, because their test is the knee-extension angle. Whether bent knees give the same result isn't something the studies cited here compared. If a straight knee is uncomfortable, a slight bend is a practical compromise.

Do I lose it if I stop?

A 2025 meta-analysis of 13 studies (556 people, aged about 6 to 66) followed stretching programs of 5 to 15 weeks with 2 to 6 weeks off. Range stayed above where people started, but dropped a little from where they finished.⁹ That finding is covered in more detail on the mobility routine.

If you want it built into a plan

Ten minutes a day is easy to plan and easy to drop the first busy week. If you want flexibility sitting next to your strength and cardio in one plan, that's what I build in coaching: the workouts sit in the Trainerize app, and every week we get on a call, look at what happened, and I set up the next week. Coaching for beginners explains how it works, and you can apply here. Otherwise: do the lying hamstring stretch tonight, and write down how far you reach before and after.