On the basis of the results of seven high-quality studies, this review showed evidence for the effectiveness of proprioceptive/neuromuscular training in reducing the incidence of certain types of sports injuries among adolescent and young adult athletes during pivoting sports. Future research should focus on the conduct of comparative trials to identify the most appropriate and effective training components for preventing injuries in specific sports and populations.
The present study evaluated the validity of the six-minute walk test (6MWT) in cancer patients. 50 subjects (36 f, 14 m; 57.4±10.2 years; during (56%) or off (44%) cancer treatment) performed a 6MWT and a spiroergometry on a cycle ergo-meter (0+25 W, 3 min) to evaluate maximum exercise capacity (VO2peak). A subsample (n=30) completed a retest of the 6MWT within 2-7 days. Patients covered a distance of 594±81 m during 6MWT at an average intensity of 86.3±9.6% of HRmax and achieved a VO2peak of 21.2±4.86 ml · kg - 1 · min - 1 during cycle ergometry. The distance walked correlated significantly (p<0.001) with VO2peak (r=0.67) and perceived physical function (EORTC QLQ-C30 physical function subscale) (r=0.55). Concerning reliability the intraclass correlation coefficient was r=0.93 (95%CI: +0.86;+0.97; p<0.001) and the coefficient of variation 3%. During retest participants walked 3.1% (95%CI: +1.1; +5.2) farther and achieved a higher RPE (+1.0; 95%CI: +0.3;+1.8). Limits of agreement were between - 43.1 and 76.4 m. In cancer patients the 6MWT seems to be as valid and reliable as in healthy elderly, cardiac and pulmonary patients. Thus, it can be recommended for use in cancer patients.
Observational evidence that light-intensity PA can confer health benefits is accumulating. Currently inactive or insufficiently active people should be encouraged to engage in PA of any intensity. If longitudinal and intervention studies corroborate our findings, the revision of PA recommendations to include light-intensity activities, at least for currently inactive populations, might be warranted.
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