Tag: musculoskeletal injury risk

Benefits of Ergonomic Design in Material Handling Equipment

Life lessons come in all kinds of packages and often from unusual sources. Astute businessmen are quick to take lessons learned in other industries and apply them to their own operations. That’s why we’ve been talking this week about a three-year study of musculoskeletal injury risk factors in the trucking industry (see our April 27 and 29 posts). Any time workers are forced to work in uncomfortable positions for long periods of time or repeat uncomfortable actions over time, undue strain is placed on the body’s sensitive musculoskeletal system, increasing the risk of serious injury. The result is the same whether you drive a long-haul truck across country or spend your shift moving material back and forth across a factory floor. The trucking industry study only serves to remind us that material handling operators face the same physically-challenging, musculoskeletal risk factors, just in a different setting.

Musculoskeletal injuries in the workplace account for the greatest number of worker’s compensation claims in the U.S. each year, according to the U.S. Department of Labor, which places the annual price tag of such injuries at more than $60 billion. But the true cost of back injuries, tendonitis, carpal tunnel syndrome and other stress and repetitive motion injuries is far greater than the direct medical/insurance cost. Poorly designed material handling equipment that forces workers to stretch and strain decreases productivity, negatively impacts product quality, lowers morale, and increases absenteeism. The true annual price tag for workplace injury and illness is estimated in excess of $171 billion.

A national leader in the design and manufacture of ergonomic solutions to material handling applications, DJ Products specializes in making the finest, most versatile, electric and motorized cart tugs in the industry. Ergonomically designed to take the stress and strain off workers, our products have earned as many kudos from customers for their role in increasing production efficiency as they have for improving worker health and safety. Here are just some of the ergonomic design features that make DJ Products’ material handling equipment stand out from the competition:

  • Exactingly-engineered ergonomic controls place operating controls at the precisely optimal position for easy use and maximum operator control while eliminating carpal tunnel injury.
  • Versatile adjustable tug arms allow carts to securely attach to the bottom of any cart or load, even those loads that overflow the cart bed.
  • Our scissors-lift option allows each worker to raise or lower materials to his personal, optimal work height.
  • Safe, smooth 180-degree pivoting is ensured with our unique tug arm, eliminating the risk of dangerous jackknifing while maneuvering heavy loads.
  • Energy-efficient electric battery-powered operation guarantees safe, quiet, green operation through two full shifts before recharging.

For complete information on the full line of DJ Products’ ergonomically-designed material handling equipment, visit our website today.

Driver Demographics Affect Musculoskeletal Injury Risk

EHS Today online, a magazine for environment, health and safety leaders, published an interesting April 24, 2009 article comparing truck driver demographics to risk factors for musculoskeletal injuries. As in any job that requires long hours in a single position, long distance truck drivers are at increased risk for musculoskeletal injury on the job. According to a recent study by Atlas Ergonomics, truck drivers lose more workdays per musculoskeletal injury incident than any other group of workers. Fortunately, risk factors can be predicted and workers protected.

The three-year study of 28,301 commercial truck drivers was conducted from 2005 to 2008. Drivers were primarily engaged in driving and delivering loads with less than 10% of drivers’ activities involving the unloading of freight. A direct relationship was found between injury risk and the physical characteristics of the both the worker and truck cab. The driver population studied was predominately men of slightly taller stature and weight than average.

  • The study found that height caused the greatest discomfort while driving. Taller drivers were forced to contort their bodies to fit into cab spaces, while shorter drivers had to stretch to reach controls.
  • Weight, particularly obesity, significantly increased injury risk factors. Obesity increased driving discomfort to severe levels and, in many cases, resulted in sleep apnea and other sleep disorders that impaired alertness.
  • Driver age was spread across all age groups from young, new drivers to near retirees. Discomfort increased with age and length of service, three to five years of seniority producing greater risk. Injuries to workers 65 and older resulted in longer work absences after injury.
  • While women drivers constituted just 8% of the study group, their smaller stature resulted “in elevated levels of discomfort across all body parts,” according to study results. Muscular strength may also have played a role but was not specifically studied.

While operating material handling equipment is significantly different from long-haul trucking, there are important similarities when workers are forced to maintain steady postures for long periods of time or repeatedly perform the same actions over a shift. The findings of the Atlas Ergonomics study has instructive lessons for material handling equipment purchasers who want to decrease the risk of worker injury in their workplace. We’ll talk about that next time.

Ergonomic Design Reduces Equipment Injury Risk

In our last post, we discussed the results of a three-year study of musculoskeletal injury risk factors in the trucking industry. While that study focused on long-haul truckers who are forced to maintain the same postures for hours at a time and the toll such limited activity takes on the body, the study provides an instructive lesson for any business owner who uses material handling equipment to move materials and products in the workplace. Any time workers spend long periods of time performing similar tasks, any time workers repeat the same physical movements during their shift, any time workers must adapt their bodies to “fit” the equipment they operate, any time workers must use their own body muscles to move or maneuver materials, the risk of sustaining damaging musculoskeletal injuries increases significantly. Ergonomics is the solution.

The recent study by Atlas Ergonomics reported in EHS Today online evaluated musculoskeletal injury risk factors for commercial truckers by demographics, height, weight, age and gender. Risk factors significantly increased whenever drivers had to stretch or contort their bodies to reach and operate controls. Injuries also increased with the length of time uncomfortable positions had to be maintained. Atlas found that making ergonomic improvements to truck cab designs, control placement and operator actions, could significantly reduce the risk of musculoskeletal injuries across all driver populations.

Atlas President James Lansman told EHS Today, “Fortunately, as our historical data and work in transportation have shown, driver risk can be measurably reduced through simple, low-cost adjustments to the cab and the drivers’ routines. The data show that sound ergonomics can have a direct, significant impact on trucking companies’ financial performance — which executives may find particularly encouraging in this difficult economy.”

DJ Products ergonomically-designed material handling equipment provides the same benefits to businesses that utilize material handling equipment to move materials, equipment and products in the workplace. Our motorized carts and battery-powered cart movers are engineered to take the burden off workers’ bodies and allow materials and equipment to be transported and maneuvered without musculoskeletal strain or injury. DJ Products’ ergonomically-designed material handling equipment allows equipment to be adjusted to optimal height for use by workers of any size, age or physical ability, ensuring maximum production during every shift.

Next time: Benefits of ergonomic design

Congress Debates Increasing Fines for Worker Injury, Death

Congress is being urged to increase financial penalties for workplace injuries and deaths, according to congressional testimony reported by McClatchy Newspapers. In last week’s hearing before the U.S. House Education and Labor Committee, workers’ advocate groups squared off against industry safety experts to debate increasing penalties when employers don’t protect their workers against hazardous conditions.

Workers’ advocates pressured the federal government to drastically increase fines and implement possible criminal prosecution for senior executives when workers are killed or seriously injured on the job. “The thought process has to be, ‘If I keep doing this, and I keep letting this happen. … I could go to jail,'” David Uhlmann of the University of Michigan School of Law and a former U.S. Department of Justice official, told the House Committee.

Speaking for the opposing view, a workplace safety attorney who helps businesses figure out how to respond appropriately to U.S. labor laws, recommended more clearly defined labor safety laws and more stringent enforcement of existing penalties for employers who exhibit a “callous disregard” for workers’ safety. “There needs to be a balance,” Lawrence Halprin, a lawyer with Keller and Heckman, told the House Committee, noting that confusing labor regulations often contribute to the creation of workplace hazards.

Last week’s hearing was one more volley in the Congressional debate that is accompanying preparation of anticipated legislation to overhaul the 39-year-old Occupational Safety and Health Act (OSHA). With the Obama administration’s apparent blessing, House Democrats are preparing to give OSHA a new and sharper set of teeth. New regulations being considered would dramatically increase employers’ penalties, increase business owners’ accountability and protect workers who speak out about workplace violations. OSHA penalties have not been updated since 1990, and financial penalties were never indexed to inflation. Current penalties for the injury or death of a worker often total just a few thousand dollars.

“Penalties must be meaningful,” said Rep. George Miller, a California Democrat and chairman of the House Education and Labor Committee. “They must function to deter violations. They must get people’s attention.”

However, some committee members are concerned that their Congressional peers may be unduly swayed by the many stories of personal tragedy that have peppered the hearings. Rep. Tom Price, a Georgia Republican, noting that workplace fatalities have declined since 1994, said, “Sometimes Congress gets emotional and draws the wrong conclusions and makes the wrong laws.” Time will tell what happens here, but you might want to weigh in with your Congressman and tell him how you feel.