就是前面一个段落已经有说我们在 behavioral test 实验
里有测受试者 gait 的三个指标: speed, symmetry, stride distance
然后后面这里分析方法时提到
Heart rate parameters measured in the behavioral test
will be used to correlated with clinical data.
(1). Heart rate parameters (i.e., speed, symmetry, stride distance)
measured in the behavioral test will be used to correlated
with clinical data.
(2). Heart rate parameters measured in the behavioral test
(i.e., speed, symmetry, stride distance) will be used
to correlated with clinical data.
哪一个写法才对啊?

站在读者角度，(1)较接近 parameters，较友善阅读。不过你 correlate 的 d 拿掉。不是 p.p.

typo