Impact of heavy weight drops at Crossfit® training facilities on adjacent doctor’s examination rooms and on conference rooms

Abstract

Significant sound and vibration are generated when members of Crossfit® training facilities drop heavy barbell weights to the floor from waist or shoulder height. Weights between 40 kg (90 lbs) and 100 kg (225 lbs) are repeatedly lifted from the floor to should height, then dropped to the floor and then picked up again. Crossfit® combines a variety of exercises using weights, pull up bars, and tires for dragging to increase the strength of participants. The sound and vibration generated by dropping of the weights is the only activity that has generated strong reaction from adjacent spaces. The Crossfit® facilities are found in many spaces, but often in warehouse/office or strip offices, i.e., locations with many types of tenants. Examples are Crossfit® facilities next to optometrists, conference rooms, and massage parlors. The sound and vibration generated by the weight drops and resulting sound and vibration in the receiver space are presented for several conditions of the equipment and the floor. Severa...