lumbar muscle spasm

Why do my lower back muscles intensely spasm after laying heavy brick or stone?

1. Introduction Intense lower back muscle spasms after laying heavy brick or stone are a powerful neurological defense mechanism triggered by severe biomechanical overload and acute fatigue of the lumbar stabilizing musculature. Masonry work requires continuous, repetitive cycles of spinal flexion—bending forward—combined with lifting heavy, dense materials. Over several hours, this postural strain induces a … Read more

What Does It Mean When Your Lower Back Spasms Uncontrollably When Bending Over?

1. Introduction Uncontrollable lower back spasms that occur during forward flexion indicate a severe protective neuromuscular reflex. When bending over, the mechanical load on the lumbar spine increases significantly. If a structural component—such as a muscle, ligament, or intervertebral disc—is compromised, the nervous system triggers a forceful and involuntary contraction of the paraspinal muscles. This … Read more