一个人抬起一个大包裹，导致下背部疼痛。

s seen lifting a large package, highlighting the strain on the lower back. This stock video captures the onset of pain and discomfort associated with improper lifting techniques. The visual focuses on the spine, muscles, and body mechanics involved, emphasizing the potential for injury and backache. It illustrates the physical challenge of lifting heavy objects and the resulting discomfort.