WEIGHT-LIFTING BARS, METHODS OF MANUFACTURING THE WEIGHT-LIFTING BARS, AND A METHOD OF WEIGHT-LIFTING

摘要

A weight-lifting bar is provided. The weight-lifting bar includes a tubular member having a first end portion and a second end portion. The tubular member further includes an internal region. The weight-lifting bar further includes a plurality of balls disposed in the internal region of the tubular member that at least partially fills the internal region. The weight-lifting bar further includes a first endcap member configured to be coupled to the first end portion, and a second endcap member configured to be coupled to the second end portion.