Hypertonicity can lead to which of the following complications?

Hypertonicity can lead to which of the following complications?

• A. May result in contractures
• B. Increased range of motion
• C. No functional impact
• D. Only affects sensation

Answer: (A)

Hypertonicity means muscles have an unusually high resistance to passive stretch. When tone stays elevated over time, the muscle and surrounding connective tissues shorten and stiffen, making it harder for the muscle to lengthen during movement. This progressive shortening and loss of elasticity can lead to contractures—fixed or lasting decreases in joint range of motion. That limited ROM directly impacts function, posture, and the ability to perform everyday tasks, which is the primary concern with persistent hypertonicity. The other possibilities don’t fit because hypertonicity does not increase range of motion, and while it can affect function, it doesn’t inherently imply no functional impact or be limited to sensory changes.

Hypertonicity means muscles have an unusually high resistance to passive stretch. When tone stays elevated over time, the muscle and surrounding connective tissues shorten and stiffen, making it harder for the muscle to lengthen during movement. This progressive shortening and loss of elasticity can lead to contractures—fixed or lasting decreases in joint range of motion. That limited ROM directly impacts function, posture, and the ability to perform everyday tasks, which is the primary concern with persistent hypertonicity. The other possibilities don’t fit because hypertonicity does not increase range of motion, and while it can affect function, it doesn’t inherently imply no functional impact or be limited to sensory changes.