Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Using Positional Heel-marker Data to More Accurately Calculate Stride
  Length for Treadmill Walking: A Step Length Approach   Treadmill walking is a convenient tool for studying the human gait; however,
a common gait parameter, stride length, can be difficult to calculate directly
because relevant reference points continually move backwards. Although there is
no direct calculation of stride length itself, we can use positional
heel-marker data to directly determine a similar parameter, step length, and we
can sum two step lengths to result in one stride length. This proposed method
of calculation is simple but seems to be unexplored in other literature, so
this paper displays the details of the calculation. Our experimental results
differed from the expected values by 2.2% and had a very low standard
deviation, suggesting that this method is viable for practical use. The ability
to calculate stride length for treadmill walking using heel-marker data may
allow for quick and accurate gait calculations that further contribute to the
versatility of heel data as a tool for gait analysis.

37
The categories of this paper are: supr-con
36
The categories of this paper are: cmp-lg
28
The categories of this paper are: alg-geom
29
The categories of this paper are: funct-an
31
The categories of this paper are: ao-sci
16
The categories of this paper are: stat
18
The categories of this paper are: econ
30
The categories of this paper are: q-alg
25
The categories of this paper are: patt-sol
1
The categories of this paper are: cs
9
The categories of this paper are: nlin
21
The categories of this paper are: adap-org
27
The categories of this paper are: comp-gas
14
The categories of this paper are: math-ph
7
The categories of this paper are: hep-th
4
The categories of this paper are: cond-mat