كيف تعلم الانسان السباحة؟

25 فبراير 2013

تعلم الانسان السباحة عن طريق مراقبة الحيوانات التي تسبح في الماء بغريزتها، وكان
الانسان يسبح قديما سباحة تشبه سباحة الكلاب ولكن الانسان سعى لتطوير حركاته السباحية عن طريق استخدامه لحركات صدره وذراعيه وساقيه ثم الحركات الجانبية وفي عام 1783 اكتشف رجل انجليزي يدعى جون تروجن حركة جديدة وهي عبارة عن حركات متناوبه تدعى حركات تروجن.

معلومات ثقافية، معلومات عامة

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أخر المواضيع من قسم : معلومات ثقافية، معلومات عامة

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