(2) The negative effect on RPE and balance performance induced by MS is significantly smaller than that induced by GS. (1) A prolonged standing task on both MS and GS have a negative effect on RPE and balance performance. Paired-samples test was adopted to analyse the before and after difference within group and independent-samples test was adopted to analyse the difference between groups separately. The Borg Rating of Perceived Exertion (RPE) would be collected during the whole task.

The plantar pressure distribution, foot morphology, and scores of the BESS (balance error scoring system) would be recorded pre- and posteach task.

After collecting the anthropometric data, each participant was asked to finish 2 sessions of 4-hour prolonged standing tasks on standing mats (MS) and hard ground (GS) in a random order and with a 72-hour interval rest.

32 healthy college students were recruited in the randomized and cross-over designed trial according to the effect size and statistical power. To identify the effect of standing mats on biomechanical characteristics of lower limbs and perceived exertion for healthy adult individuals during a prolonged standing task.

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