The<unk>  soreness is caused by eccentric exercise, that is, exercise consisting of eccentric (lengthening) contractions of the<unk> . Isometric (static) exercise causes much less soreness, and concentric (shortening) exercise causes none.
Delayed onset muscle soreness
Intractable pain
Chronic pain
Acute muscle soreness
Amplified musculoskeletal pain syndromes
Extrapyramidal symptoms
Heat intolerance
Acute visual loss