筋きん緊きん張ちょう

noun

muscle tone; tonus

Physiological term for the continuous, passive partial contraction of muscles at rest. Used in medical and biological contexts.

• 筋きん緊きん張ちょうが低てい下かすると、姿し勢せいを保たもつのが難むずかしくなる。

  When muscle tone decreases, it becomes difficult to maintain posture.

noun

myotonia

Medical term for a condition characterized by delayed relaxation of muscles after contraction. More specific than general muscle tone.

• 先せん天てん性せい筋きん緊きん張ちょう症しょうは、筋きん肉にくが収しゅう縮しゅくした後あとに弛し緩かんしにくくなる病びょう気きです。

  Congenital myotonia is a condition where muscles have difficulty relaxing after contraction.