دراسة مقارنة في بعض المتغيرات البايوكينماتيكية بين المستقيم الأول و الأخير لركض (400 م)‎ حرة للرجال للمتقدمين

الملخص EN

The research aims to identify the values of some biochemical variables for the first and last straight lines, which are free (400m) running among advanced male runners and identify the comparison of the values of some biochemical variables between the first and last straight lines for free (400 m) running among advanced male runners.

The researchers hypothesized that there were significant differences in some biochemical variables between the first and last straight of the (400 m) among advanced male runners.

The research sample consisted of 400m freestyle male runners from the Iraq national team.

Some pilot studies were used in the field of the final experiment using a fast camera and the same machines were used in the final experiment in order to obtain some biochemical variables in the first and last straight, including averages (length - time - speed - frequency of steps) and average total horizontal speed during running in the first and last straight, as four video cameras were used, as the cameras were placed against the first and last straight in the middle of the football field.

The statistical package SPSS was used to extract the research results.