The Fire Apparatus Manufacturers’ Association (FAMA) has a goal to advance and protect the interests of the fire and emergency services community. While not everyone in the fire service will agree on what those best interests are, we can all agree that good decision making begins and ends with good data.
For that reason, FAMA is excited to highlight the publication of data from a recent National Institute for Occupational Safety and Health (NIOSH) study on firefighter anthropometric measurements.
What is Anthropometry?
Anthropometry is a fancy word for the study of human body measurements. This seems like it should be straightforward and simple. We all get measured for height at each doctor’s visit. Gather the height measurements from a group of people, and you can quickly determine the average height of the people in your group. But, very rarely does a single dimension give the complete picture. For example, while two people may be the same height while standing, they will not have the same head height when sitting in a chair. This is because we all have different shapes: long legs and short torso, short legs and long torso, average legs and torso but long neck, etc. If you are trying to ensure that your equipment fits your personnel, a single data point is rarely sufficient.
This is where anthropometry steps in. There are specific anthropometric measurements for just about every aspect of the human form. These measurements can be obtained through physical methods using rulers, T-squares, and the like. Or, they can be obtained by computer body scanning. The NIOSH team used both methods, and the result is a list of 71 discrete measurements for male firefighters and the same number for female firefighters. The usefulness of this data is increased by using statistical methods that allow us to determine the likelihood that a group of firefighters will fit a particular value.
History of Anthropometry in the Fire Service
FAMA stepped up in 2006 when the International Association of Fire Chiefs (IAFC) challenged the industry to make seat belts that fit the firefighters using them. We partnered with fire departments to collect data on firefighter size and weight, which led to the publication of the FAMA “Firefighter Anthropometric Data White Paper” the following year. These data were used by apparatus manufacturers as well as the National Fire Protection Association (NFPA) apparatus committee to set new standards for seat belt length. While this data collection was less rigorous than the protocol used by scientific agencies, the information was more timely and accurate enough for the purpose at hand.
At the same time, the IAFC and FAMA began lobbying NIOSH to conduct a more comprehensive study of firefighters. NIOSH is a government agency funded by Congress to perform basic research in support of efforts to improve U.S. worker safety and health. NIOSH does not set standards or regulations, but the research it conducts may be used by regulatory and standard creation organizations.
NIOSH eventually obtained funding for the firefighter study and, in 2015, the first look at part of the data was published as an article in Applied Ergonomics titled “Seat and Seat Belt Accommodation in Fire Apparatus: Anthropometric Aspects.” The data in its complete form could not be published until they were thoroughly vetted and peer-reviewed by the scientific community. That process, however, has now been completed and the entire set of data is available to the public.
Manufacturer Uses for Anthropometric Data
Apparatus manufacturers can use anthropometric data to configure cab seating and place driver controls. Equipment and clothing manufacture