You may feel muscle soreness for a few days after trying something new. This may mean the activity you did was too strenuous or involved muscles you do not use often. Muscle soreness is normal and will usually go away in a few days. Soreness is different from pain . If you ever feel pain in a muscle or joint , you should tell an adult or go to the doctor.


Sometimes you may develop an ache on the side of your upper stomach during activity. Nobody knows exactly what causes a side ache . Stretching the side that is hurting, taking deep breaths , or putting pressure on the ache with your hand may help. At other times, you might have to rest for a few minutes until the ache goes away.



knee pain

Image: Knee pain by Injury Map, CC BY-SA 4.0,
via Wikimedia Commons



Words

  • ache = when something hurts
  • activity = something that you do because you enjoy or like it
  • cause = is the reason for
  • deep breaths = take in as much air as you can
  • develop = grow
  • involve = here: use
  • joint = part of your body that can bend because two bones meet there
  • pain = the feeling that you have when something hurts 
  • pressure = to put force or weight on something
  • side ache = pain on the side of your body 
  • soreness = when something causes pain because you have exercised too much
  • strenuous = something that you do that makes you feel very tired
  • stretch = to straighten your arms leg and body after an exercise