Dynamic testing to determine and predict trampoline function

نویسندگان

چکیده

Abstract Safety standards for domestic trampolines are based on static-load testing using a factor of five times the maximum intended user mass. This paper presents dynamic test method trampolines, and provides measures users’ performance (e.g., peak acceleration, Acc max ) injury risk mean rate change Jerk ). Uniform masses (41–116 kg) were dropped from 0.66 m onto bed centre nineteen different trampolines. Trampoline spring stretches, mass flight time (Flight T accelerations recorded motion capture accelerometers. Thirty-seven percent exceeded static safety standard deformation limits (80% frame height) by 11 ± 6% with (mean deviation). Across all dropped, ranged 5.1 to 7.6 g, suggesting used in static-loading needs reviewing. Statistically significant negative correlations ( p < 0.05) found between trampoline diameter r = – 0.88), 0.77) Flight 0.82). Furthermore, also 0.27), 0.59) 0.25). The combined effects constants, number springs, diameters described predictive multivariate equations (explained variance, R 2 95%) vertical 85%). These findings may assist manufacturers designing that meet while maximising reducing risk.

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ژورنال

عنوان ژورنال: Sports Engineering

سال: 2021

ISSN: ['1460-2687', '1369-7072']

DOI: https://doi.org/10.1007/s12283-021-00348-z