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　　As a recent sixty-second-science podcast explained music sings up the heartbeats of singers. Now comes the study on music on the step of walkers. It's not just the beat that effects walkers pace. Scientists discovered that even at the same tempo¹, different types of music effects stride differently. The study is in the journal plus1.

　　Researchers treated 52 different 30 seconds music accepts. Although all songs share the same tempo and meter, they range from a simple matcher on ticking into a traditional Irish tune² to be an hit-lit??. As subjects listened they walked around in open field wearing sensors³ to measure stride light?? and timing⁴. Afterwards they rated each song with quality of descriptions. Although the ?? step to the same beat for each song, they lengthened⁵ or shortened their strides for different types of music which modify their speed. In general, longer strides are accompanied songs rated aggressive and loud. So if you want to pick up the pace, don't just choose a fast jam??. Find one that pumps your energy as well.

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1 tempo
n.(音乐的)速度；节奏，行进速度
参考例句：
The boss is unsatisfied with the tardy tempo.老板不满于这种缓慢的进度。 They waltz to the tempo of the music.他们跟着音乐的节奏跳华尔兹舞。

2 tune
n.调子；和谐，协调；v.调音，调节，调整
参考例句：
He'd written a tune,and played it to us on the piano.他写了一段曲子，并在钢琴上弹给我们听。 The boy beat out a tune on a tin can.那男孩在易拉罐上敲出一首曲子。

3 sensors
n.传感器，灵敏元件( sensor的名词复数 )
参考例句：
There were more than 2000 sensors here. 这里装有两千多个灵敏元件。来自《简明英汉词典》 Significant changes have been noted where sensors were exposed to trichloride. 当传感器暴露在三氯化物中时，有很大变化。来自辞典例句

4 timing
n.时间安排，时间选择
参考例句：
The timing of the meeting is not convenient.会议的时间安排不合适。 The timing of our statement is very opportune.我们发表声明选择的时机很恰当。

5 lengthened
（时间或空间）延长，伸长( lengthen的过去式和过去分词 )
参考例句：
The afternoon shadows lengthened. 下午影子渐渐变长了。 He wanted to have his coat lengthened a bit. 他要把上衣放长一些。