Car crash muscle spasms: what's behind them and how to move safely

Insight from a rehabilitation doctor and a physical therapist

After an injury, a muscle can clench without warning. Stiffness can also creep in when you guard a sore spot or move less than usual. Not every spasm has the same cause. A rehabilitation doctor looks at the injury, your nerves, your medicines and how well you can function. A physical therapist checks which movements are safe. The therapist then teaches you a plan that fits your diagnosis. [1, 2]

Pin down the pattern first

Point to the exact muscle that’s affected. Is it a quick cramp, a steady tight pull or a joint that won’t move the way it should? Say when it started, how long each bout lasts and what sets it off. Tell your doctor about any new weakness, tingling or fever. Mention any change in bladder or bowel control too. These clues may show the problem goes beyond a routine strain. [1, 2, 3]

Stay inside your injury plan

If you have a diagnosed muscle strain, your doctor may suggest rest and ice for a short time at first. Gentle activity can follow as pain allows. A different injury may call for a brace, a weight limit or another plan. Never force a stretch across a broken bone, a healing surgical cut or an unstable joint. Ask your therapist to show you one move you can safely repeat at home. [1, 2]

Watch whether sleep, staying in one position for a long time, tight clothes or tiredness seem to make spasms worse. Bring those notes to your visit. If you’re prescribed a medicine, ask what it should do for you. Find out whether it can make you sleepy or confused. Also learn how to come off it safely. Don’t change or suddenly stop a prescribed muscle medicine without checking first. [2]

Signs your plan needs another look

Call your team if spasms come more often, pain climbs or you can move less and less. Call too if getting out of bed or a chair is harder than before. Get urgent care for new weakness, numbness in the groin or loss of bladder or bowel control. Severe pain after a new injury also needs urgent attention. When a symptom changes course, ask for a new exam. [1, 2, 3]

Questions to raise at your visit

  1. Is this a muscle strain, a nerve problem or some other injury?
  2. Which stretches or moves are safe right now?
  3. Which medicine side effects should prompt a call?

Log one spasm in detail

Pick one spasm and write it down. Note where it hit, how long it lasted and what set it off. Add any weakness or tingling you felt. Use those notes to ask for a specific set of moves to do at home. [1, 2]

Sources and further reading

  1. 1MedlinePlus muscle strain treatment
  2. 2MedlinePlus caring for muscle spasms and spasticity
  3. 3MedlinePlus acute low back pain warning signs

These tips are general and reflect rehabilitation medicine and physical therapy. Get urgent care for new weakness, loss of bladder or bowel control or severe pain that keeps getting worse.

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