Definition

Noun: * The normal, continuous, and partial contraction of a muscle at rest, which maintains posture and readiness for movement. This is the physiological state of slight tension in healthy muscles, contributing to firmness and shape. It is distinct from strength and is regulated by the nervous system.

Usage

• Muscle tone is a medical and physiological term describing a baseline state. It is often discussed in contexts of health, fitness, medicine, and rehabilitation.
• It is typically used as a non-count noun (e.g., "good muscle tone," "improve muscle tone"). It can be modified by adjectives like , , , , or .

Examples

• Noun:
  • Newborn babies are checked for normal muscle tone.
  • Physical therapy can help restore muscle tone after a long period of bed rest.
  • Yoga is excellent for developing flexibility and muscle tone, not just bulk.

Advanced Usage

• Hypertonia: Abnormally high muscle tone, often resulting in stiffness and rigidity. Common in some neurological conditions.
• Hypotonia: Abnormally low muscle tone, often resulting in "floppiness" or reduced resistance to movement. Can be present from birth or due to injury.
• "To tone (one's) muscles": A common phrase in fitness meaning to improve the firmness and definition of muscles through exercise, which enhances the appearance of underlying muscle tone.
  • She lifts weights to tone her muscles.

Variants and Related Words

• Tonus: The technical, medical synonym for muscle tone.
• Muscular tonus: An alternative phrasing with the same meaning.
• Tonicity: The property of possessing tone, especially muscular tone. (Note: In other contexts, can refer to osmotic pressure in biology).
• Tone (verb): To give strength or firmness to (the body or a muscle).
  • This exercise tones the abdominal muscles.

Synonyms

• Tonus (medical)
• Muscular tension (in a physiological, non-stress-related sense)

Antonyms

• Atony or atonia: Lack of normal muscle tone.
• Flaccidity: The state of being soft and limp, often due to low muscle tone.

Related Phrases

• "Improve muscle tone": The most common phrase associated with fitness and rehabilitation goals.
  • Swimming is a full-body workout that improves muscle tone.
• "Loss of muscle tone": Often used to describe a symptom of injury, illness, or deconditioning.
  • The cast caused a noticeable loss of muscle tone in his arm.

Noun

1. normal tonicity of the muscles
   • exercise improves muscle tone