Antropomotoryka nr 57 [2012]. - Akademia Wychowania Fizycznego ...

Marta Wieczorek Figure 4. Comparison of functional asymmetry profiles in researched group of boysbe noted that they were observable both in the directionas well as profile of asymmetry. This fact shows that in thegroup of subjects aged 10 to 12 years, the process of lateralizationtakes place and leads to occurrence of normal,determined directions and determined profiles of functionalasymmetry in an increasing proportion of subjects.Dynamic asymmetry in the examined groupof boys aged 10–12 yearsWith regard to all investigated motor skills, boys obtainedbetter results using the right side of the bodythen the left one. With age, the results increased bothTable 1. Results of motor fitness of right and left body side in tested 10-year-old boysFeature Body side x – s Min. Max.Speed of movements: upper limbs [number]Speed of movements: lower limbs [number]Strength of muscles: upper limbs [cm]Strength of muscles: lower limbs [cm]R – Right side L – Left sidex – – arithmetic mean s – standard deviationMin. – minimal value Max. – maximum valueR 52.40 9.43 38.00 69.00L 45.57 6.91 36.00 58.00R 46.30 6.38 35.00 59.00L 44.20 6.31 34.00 55.00R 370.52 52.48 211.00 449.00L 344.33 45.05 278.00 410.00R 111.34 12.01 97.00 145.00L 105.71 8.93 89.00 126.00Table 2. Results of motor fitness of right and left body side in tested 11-year-old boysFeature Body side x – s Min. Max.Speed of movements: upper limbs [number]Speed of movements: lower limbs [number]Strength of muscles: upper limbs [cm]Strength of muscles: lower limbs [cm]R 54.30 8.73 40.00 71.00L 46.23 7.33 35.00 57.00R 48.40 6.75 37.00 62.00L 45.53 6.43 37.00 62.00R 388.43 46.35 242.00 461.00L 364.76 41.18 302.00 441.00R 113.86 10.06 100.00 142.00L 110.06 8.41 91.00 124.00– 78 –