Flexibility exercises are movements that stretch your muscles and tendons to improve or maintain the range of motion in your joints. They include everything from holding a simple hamstring stretch to more advanced techniques involving a partner. The American College of Sports Medicine recommends doing them two to three times per week, and even 5 to 10 minutes per session can produce measurable benefits.
Types of Flexibility Exercises
There are three main categories of stretching, each suited to different situations.
Static stretching is the most common type. You hold a position at the end of your range of motion for 30 seconds to two minutes. A seated hamstring stretch where you reach toward your toes and hold is a classic example. Static stretches can be active, where you use your own muscles to deepen the stretch, or passive, where gravity, a strap, or another person provides the force.
Dynamic stretching involves controlled, repetitive movements that gradually increase your reach and speed. Leg swings, walking lunges, and arm circles all fall into this category. The goal is to warm up your body and rehearse the movement patterns you’re about to use in a workout or sport.
PNF stretching (proprioceptive neuromuscular facilitation) is a more advanced technique typically performed with a partner. It alternates between contracting and relaxing a muscle to push past your normal range of motion. You contract the stretched muscle at 75 to 100 percent of its maximum effort, hold for about 10 seconds, then relax and stretch deeper. PNF tends to produce the fastest gains in flexibility, but it requires someone who knows the technique to guide you safely.
Why Flexibility Matters
Regular stretching does more than help you touch your toes. Improved flexibility allows your joints to move through their full range of motion, which translates into better performance in physical activities and a lower risk of injury. Flexible muscles also receive better blood flow and work more efficiently, meaning everyday tasks like bending to tie your shoes, reaching for something on a high shelf, or turning to check a blind spot in traffic all become easier.
These gains are not permanent, though. If you stop stretching regularly, any range of motion you’ve built will gradually decrease. Consistency matters more than intensity.
Flexibility and Fall Prevention in Older Adults
Each year, more than 25 percent of adults 65 or older experience a fall, and 3 million are treated in emergency departments for fall injuries. While flexibility exercises alone can’t eliminate falls, they contribute to the combination of balance, strength, and body mechanics that keeps people steady on their feet. Tight hip flexors, for instance, shorten your stride and shift your center of gravity in ways that make stumbling more likely. Maintaining flexibility in the hips, ankles, and lower back helps preserve the natural movement patterns that prevent falls in the first place.
When to Use Each Type
The timing of your stretching matters more than most people realize. Dynamic stretching is the better choice before exercise. It mimics the movements you’re about to perform, gets your muscles firing earlier and faster, and has been shown to acutely increase power, sprint speed, jump height, and overall performance.
Static stretching before a workout can actually work against you. A 2019 study found that holding static stretches reduced maximal strength, power, and performance afterward. The longer the hold, the greater the effect. If you do want to include a brief static stretch in your warm-up, keep it to 15 to 30 seconds rather than 60 to 90. Static stretching works best as a cooldown after exercise, when your muscles are already warm and in a state where the relaxation effect is welcome rather than counterproductive.
Stretches for Major Muscle Groups
A well-rounded flexibility routine hits the areas that tend to get tightest from daily life, especially in people who sit for long periods.
- Hamstrings: Lie on the floor near a wall. Raise one leg and rest your heel against the wall with your knee slightly bent. Gently straighten the leg until you feel a stretch along the back of your thigh. Hold for 30 seconds.
- Hip flexors: Kneel on one knee (place a folded towel under your kneecap for comfort) and shift your weight forward until you feel a stretch at the front of your hip on the kneeling side. These muscles shorten significantly from prolonged sitting.
- Shoulders: Bring one arm across your body and hold it with your opposite hand above or below the elbow. Hold for 30 seconds, then switch. This is particularly important if you play overhead sports like tennis or baseball, where a tight shoulder raises the risk of rotator cuff problems.
- Lower back: Lie on your back with your heels flat on the floor. Gently pull one knee toward your chest until you feel a stretch in your lower back. Note: if you have osteoporosis, skip this one, as it can increase the risk of compression fractures in the vertebrae.
How Often and How Long to Stretch
The ACSM guidelines recommend stretching two to three times per week. For each stretch, hold for 10 to 30 seconds and repeat two to four times, accumulating about 60 seconds of total stretch time per muscle group. You don’t need a dedicated hour. A focused 5- to 10-minute routine covering four or five muscle groups is enough to maintain and gradually improve your flexibility over time.
Stretch to the point of tightness or slight discomfort, not pain. If a stretch hurts, you’ve gone too far. Flexibility improves gradually over weeks and months, not in a single session.
Who Should Be Cautious
Most people benefit from regular stretching, but those with hypermobile joints need to be careful. Hypermobility means your joints already move beyond the typical range, which can make them less stable. People with conditions like Ehlers-Danlos syndrome or hypermobility spectrum disorder are more prone to overextending and potentially dislocating joints during stretching. If this applies to you, supportive braces, yoga blocks, and foam rollers can help you exercise safely without pushing past what your joints can handle. The goal for hypermobile individuals is typically strengthening the muscles around the joint rather than increasing flexibility further.