What Prevents Full Leg Extension Inability to straighten your legs while sitting or during forward folds indicates restriction somewhere along the posterior chain. This could be muscular (hamstrings, calves), neural (sciatic nerve tension), or both. Distinguishing between muscle and nerve tension matters because they respond to different interventions. Muscle tension releases with sustained stretching and active mobility. Neural tension requires gentle movement and nerve gliding rather than aggressive stretching. These exercises address both components safely and effectively. Muscle vs Neural Tension Muscle tension signs: Feeling of stretch in the muscle belly, improves with warmth, consistent limitation regardless of position. Neural tension signs: Electric or burning sensations, changes with neck or ankle position, asymmetric between legs. If you experience neural symptoms, prioritize nerve gliding over aggressive stretching. Consult a healthcare provider if symptoms persist. Start your 14-day free trial to access hamstring mobility programs. Leg Straightening Exercises Address both muscular and neural components. Active Hamstring Mobility JME 141 Sitting in your chair, extend one leg in front. Once extended, bend your upper body over that leg to fell a gentle stretch in your hamstring. Don't force anything - find what works for you. Hip Hinge Pattern JME 145 Standing, with your knee bent at 90 degrees, lift your leg up to find your end range of motion. Each rep, try to find more space to move your leg higher - but don't force anything. Listen to your body and find what works for you. Calf Mobility JME 104 Sitting in your chair, rotate your upper body to one side and extend one arm back. Spine Flexion Control JME 170 Find stability by holding onto the back of your chair or desk. Bend at your knee to raise your leg backward - as high as your are able to - and return to the floor. Progressive Approach Start with bent-knee variations and progressively straighten over weeks. Never force through pain or neural symptoms. Use props to reduce range demands initially. Build active strength at end ranges to earn passive flexibility. Start your 14-day free trial and straighten your legs with simplmobility.