Considering that all athletic practice periods as well as any competitive events begin and often end with some form of stretching, it seems relevant that our workplace athletes should likewise be employing a similar approach when preparing for a potentially labor intensive day ahead.  While our sport athletes (who often are in peak physical condition) participate in active- movement based warm ups, why would we expect our industrial athletes (many who may no longer be in peak physical condition) to immediately jump directly into a potentially high impact or heavy demand workload with no opportunity for the body to "warm up" in preparation for the tasks at hand.