There was strong evidence for one intervention category , resistance training , leading to the recommendation : Implementing a workplace-based resistance training exercise programme can help prevent and manage UEMSD and symptoms .
The synthesis also revealed moderate evidence for stretching programmes , mouse use feedback and forearm supports in preventing UEMSD or symptoms .
There was also moderate evidence for no benefit for EMG biofeedback , job stress management training , and office workstation adjustment for UEMSD and symptoms .
The burden of disabling musculoskeletal pain and injuries ( musculoskeletal disorders , MSDs ) arising from work-related causes in many workplaces remains substantial .
There is little consensus on the most appropriate interventions for MSDs .
Our objective was to up date a systematic review of workplace-based interventions for preventing and managing  upper extremity MSD ( UEMSD ) .
The effects of periodontal curette handle weight and diameter on arm pain: a four-month randomized controlled trial.
BACKGROUND The design of periodontal curette h and les may cause or aggravate arm pain in dental practitioners . The authors conducted a four-month r and omized controlled trial to evaluate the effects of curette h and le diameter and weight on arm pain among dental hygienists and dentists . METHODS One hundred ten dental hygienists and dentists who performed scaling , root planing or dental prophylaxis procedures participated in this study . The authors assessed right wrist/h and , elbow/forearm and shoulder pain levels weekly . They r and omized participants to receive either a set of light ( 14 grams ) periodontal curettes with a large diameter ( 11 millimeters ) or a set of heavy ( 34 g ) periodontal curettes with a narrow diameter ( 8 mm ) . The authors compared changes in mean pain scores across the study period between intervention groups by using general linear models and controlling for covariates . RESULTS The improvement in pain scores across the three body regions was greater for participants who used the lighter , wider-diameter curettes . In the final adjusted model , the differences were statistically significant only for the shoulder region ( P = .02 ) . CONCLUSIONS The study results show that dental instrument design has an effect on upper-extremity pain in dental practitioners . Using a lighter instrument with a wider diameter may be an easy and cost-effective intervention to reduce or prevent upper-extremity pain associated with dental hygiene procedures . CLINICAL IMPLICATION S To prevent or reduce arm pain , practitioners should consider using lightweight instruments with large diameters when performing scaling and root planing procedures
There was strong evidence for one intervention category , resistance training , leading to the recommendation : Implementing a workplace-based resistance training exercise programme can help prevent and manage UEMSD and symptoms .
The synthesis also revealed moderate evidence for stretching programmes , mouse use feedback and forearm supports in preventing UEMSD or symptoms .
There was also moderate evidence for no benefit for EMG biofeedback , job stress management training , and office workstation adjustment for UEMSD and symptoms .
The burden of disabling musculoskeletal pain and injuries ( musculoskeletal disorders , MSDs ) arising from work-related causes in many workplaces remains substantial .
There is little consensus on the most appropriate interventions for MSDs .
Our objective was to up date a systematic review of workplace-based interventions for preventing and managing  upper extremity MSD ( UEMSD ) .