Findings revealed that active and latent MTrPs were prevalent throughout all disorders , however , latent MTrPs did not consistently have a higher prevalence compared to healthy controls .
Conclusions We found limited evidence supporting the high prevalence of active and latent MTrPs in patients with neck or shoulder disorders .
Background Neck and shoulder disorders may be linked to the presence of myofascial trigger points ( MTrPs ) .
These disorders can significantly impact a person ’s activities of daily living and ability to work .
MTrPs can be involved with pain sensitization , contributing to acute or chronic neck and shoulder musculoskeletal disorders .
The aim of this review was to synthesis e evidence on the prevalence of active and latent MTrPs in subjects with neck and shoulder disorders .
The feasibility of creating a checklist for the assessment of the methodological quality both of randomised and non-randomised studies of health care interventions.
OBJECTIVE : To test the feasibility of creating a valid and reliable checklist with the following features : appropriate for assessing both r and omised and non-r and omised studies ; provision of both an overall score for study quality and a profile of scores not only for the quality of reporting , internal validity ( bias and confounding ) and power , but also for external validity . DESIGN : A pilot version was first developed , based on epidemiological principles , review s , and existing checklists for r and omised studies . Face and content validity were assessed by three experienced review ers and reliability was determined using two raters assessing 10 r and omised and 10 non-r and omised studies . Using different raters , the checklist was revised and tested for internal consistency ( Kuder-Richardson 20 ) , test-retest and inter-rater reliability ( Spearman correlation coefficient and sign rank test ; kappa statistics ) , criterion validity , and respondent burden . MAIN RESULTS : The performance of the checklist improved considerably after revision of a pilot version . The Quality Index had high internal consistency ( KR-20 : 0.89 ) as did the subscales apart from external validity ( KR-20 : 0.54 ) . Test-retest ( r 0.88 ) and inter-rater ( r 0.75 ) reliability of the Quality Index were good . Reliability of the subscales varied from good ( bias ) to poor ( external validity ) . The Quality Index correlated highly with an existing , established instrument for assessing r and omised studies ( r 0.90 ) . There was little difference between its performance with non-r and omised and with r and omised studies . Raters took about 20 minutes to assess each paper ( range 10 to 45 minutes ) . CONCLUSIONS : This study has shown that it is feasible to develop a checklist that can be used to assess the method ological quality not only of r and omised controlled trials but also non-r and omised studies . It has also shown that it is possible to produce a checklist that provides a profile of the paper , alerting review ers to its particular method ological strengths and weaknesses . Further work is required to improve the checklist and the training of raters in the assessment of external validity
Findings revealed that active and latent MTrPs were prevalent throughout all disorders , however , latent MTrPs did not consistently have a higher prevalence compared to healthy controls .
Conclusions We found limited evidence supporting the high prevalence of active and latent MTrPs in patients with neck or shoulder disorders .
Background Neck and shoulder disorders may be linked to the presence of myofascial trigger points ( MTrPs ) .
These disorders can significantly impact a person ’s activities of daily living and ability to work .
MTrPs can be involved with pain sensitization , contributing to acute or chronic neck and shoulder musculoskeletal disorders .
The aim of this review was to synthesis e evidence on the prevalence of active and latent MTrPs in subjects with neck and shoulder disorders .