muscular

msucular system

1. Movement – muscles pull on bones to create movement

2. Posture – keeps body upright

3. Stability – holds joints in place

4. Heat production – muscles produce heat during contraction

isometric

contractions occur when muscle length remains constant while producing force, often used in strength training.

isotonic concentric

contractions occur when a muscle shortens while generating force, commonly seen in exercises like bicep curls.

isotonic eccentric

contractions occur when a muscle lengthens while generating force, often during the lowering phase of exercises.