Effects of slackline training on elements of physical fitness: a systematic review with meta-analysis

Background: A slackline is a form of balance training proposed by Adam Grabowsky and Jeff Ellington, which the main goal is to balance on a 2-2,5 cm wide tape, anchored and taut between two points, for example, trees. Previous researchsuggests that slacklining training improves postural stability and concentration. This systematic review aimed to analyze and synthesize the evidence on the efficacy of slackline training on elements of physical fitness (jump performance and balance maintenance) compared with conventional training. Methods: From a total of 16 records, 5 studies met the inclusion criteria for qualitative analysis. At the end of the process, 3 studies remained for quantitative analysis. Results: We assessed improvements in jump performance (SMD = 1.05; CI 95% 0.17 to 1.92 I2 = 53%) in favor of slackline training compared to the conventional trainings. No significant differences were found between Slackline and conventional training for learning balance maintenance in tandem position (SMD = -0.10 CI 95%-0.63 to 0.42 I2 = 0%), standing on the left leg (SMD = -0.33 CI 95% -1.31 to 0.65 I2 = 70%) and on the right leg (SMD = -0.44 CI 95% -1.71 to 0.82 I2 = 81%). Conclusions: The results of this study suggests the efficacy of slackline training and its application for jump performance in healthy young adults.DOI: https://doi.org/10.24040/sjss.2021.7.1.25-36