How to translate 动感强？
动感 means 动态感觉 =  'dynamic feel' 

Examples: 


这幅画有强烈的动感- This painting has a strong dynamic feel to it
此照片色彩鲜艳, 动感强烈 - His photo has vivid color and strong dynamic feel
她一身紧身赛车服, 散发出强烈动感- She in a tight car-racing suit, exudes a strong dynamic feel.


Using 动感强 (dynamic feel is strong)  to describe 'high altitude skiing' is kind of inappropriate.

Skiing is a motion . Saying an actual motion make people feel it is moving is an oxymoron.

It is better to say "高山滑雪由于动态强" (Because high altitude skiing is highly dynamic)