Another study of respiratory illnesses among union carpenters found a slightly higher rate of lung cancer, compared to the general population. The researchers also found that exposure to concrete dusts, glues, acids, alkalis and oils was associated with a higher risk of asthma.” (Kloberdanz, Kristin, MA January 20, 2016). Back strains and musculoskeletal disorders are among the most common injuries among carpenters. “Carpenters suffer from many types of strains and sprains, but according to a 1997 study of more than 10,000 carpenters in Washington state, back strains accounted for the largest group of workers' compensation claims filed for musculoskeletal disorders. “The best way to prevent a back injury from the start is to use proper lifting techniques,” Carpenters may also want to order a copy of OSHA's Ergonomics Program Guide. It describes the symptoms of musculoskeletal disorders – ranging from carpal tunnel syndrome to hip and knee disorders – and offers advice on how to prevent and treat them.” (Kloberdanz, Kristin, MA January 20.