Performance versus height in Freestyle swimming in girls of 10 years

Introduction: The Freestyle swimming is currently known as the fastest within the competitive environment. Objective: The objective of this study was to investigate the performance differences in Freestyle swimming of female children of 10 years old, relating total time of swim and stature, in a distance of 25 meters. Method: Participated in the study 10 female children of 10 years old. The task was to swim 25 meters, as fast as possible in Freestyle swimming and, beyond this measure, was used anthropometric measure related to height. Was conducted a Pearson Correlation test. Results: The results showed that the correlation is inversely proportional (negative), weak and non-significant, in other words, swim faster has no effect on the subjects’ height in the total duration of the swimming. Conclusion: The results indicate that there is no relationship between performance and height for girls of 10 years in the Freestyle swimming.

The Sensitivity and Role of Equipment Bulk on a Military Mission Oriented Obstacle Course

Standardized military mission oriented obstacle courses are being used to assess the impact of clothing and individual equipment on Warfighter performance. While the role of and sensitivity of weight has been investigated, the role and sensitivity of the course to bulk has not. Bulk was varied using lightweight foam inserts, with limited variation in weight at 0% (duty uniform), 25%, 50%, 75% and 100% (based on encumbered measurements of a body armor vest with grenadier load configuration). Bulk had minimal impact on total completion time until the largest bulk configuration was added. Individual obstacle completion time findings were similar, although the sprint and agility may have been less sensitive and the walls and windows may have been more sensitive. Chest depth was the most predictive anthropometric measure for completion time. This information will aid equipment designers in understanding how their design impacts performance.