RESULTS en The process for identifying, screening, and selecting the final studies for analysis is depicted in Figure 1. The 8 studies were judged to be of low quality(values of 3-6). Across the 8 studies, the strengths were(a) similarity of groups at baseline(b) statistically significant results; and(c) methods that addressed biases from maturation, gender, and age. The weaknesses were(a) the lack of blinding of evaluators, subjects, and coaches; (b) the lack of the use of confidence intervals to demonstrate statistical precision; (c) the lack of reporting of effect sizes to describe the magnitude of change. and(d the exclusion of drop-outs in the statistical analysis(intention to treat). The mean PEDro rating for the studies was 4.5 out of 10. The pw quality rating of the studies reflects