Soccer goalkeeper foot forward, allowed by a 2019 law change, improves penalty diving save performance SciReports
, this place was chosen because it is the point that demands the greatest horizontal and vertical displacement from the goalkeepers in penalty diving saves. Mattresses were placed in the laboratory to cushion the fall impact.The volunteers performed a total of 20 dives, being 10 with each feet positioning rule and an equal number of dives for each side. There were 10 dives to the right, 5 with the OR and NR, and 10 to the left with the same number of trials with each rule.
The CM three-dimensional coordinates were calculated using the software Nexus since we used a markers’ location standard protocol. In cases where the cameras did not capture the essential markers to the CM calculation in the final frames, the anatomical point was transferred to a non-essential marker of the same corporal segment. When this procedure was not possible, the trial was discarded. A total of 120 dives were processed, 16 were discarded due to the data capture problems described.
. In all cases, the significance level was p ≤ 0.05. The analysis were conducted in the software SPSS .In the first analysis, the dives were divided in relation to the rules independently of the diving side .
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