原文已被隐藏，你可用 快捷键 - 或点击 显示原文 按钮来查看原文
第1段
1 .This is Scientific American's 60-Second Science. I'm Karen Hopkin. This'll just take a minute.
该句暂无译文！
2 .It's tough to have a job where the boss is always riding you.
该句暂无译文！
3 .That's literally the case with a horse.
该句暂无译文！
4 .Now a study finds that stress experienced by the equine spine can vary drastically with the style and skill of the rider.
该句暂无译文！
5 .The findings are trotted out in the Journal of Experimental Biology.
该句暂无译文！
6 .Your average riders have two basic choices when it comes to staying on a moving steed.
该句暂无译文！
7 .They can clamp their thighs tight and try to remain seated,
该句暂无译文！
8 .or they can bob up and down with the rhythm of the horse, standing in the stirrups as they rise off the saddle.
该句暂无译文！
9 .But which is better for the horse?
该句暂无译文！
10 .Researchers filmed dressage riders as they trotted using both techniques.
该句暂无译文！
11 .And they found that riders who use the more bouncy 'rising trot' actually keep their center of mass more steady when they stand,
该句暂无译文！
12 .which reduces the force on the horse's back.
该句暂无译文！
13 .Now, jockeys take this position to the extreme.
该句暂无译文！
14 .By standing in the stirrups for the entire ride, a jockey's center of mass follows an almost flat line.
该句暂无译文！
15 .Which makes for a faster race to the finish, and a less burdened beast.
该句暂无译文！
16 .Thanks for the minute, for Scientific American's 60-Second Science. I'm Karen Hopkin.
该句暂无译文！