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<p>
The data contained here are from 50 healthy children ranging in age
from 40 months to 163 months. Each data file is named with a subject
identifier (1-50) and the subject's age (e.g., the file name <tt>2-45.txt</tt>
indicates that subject #2 is 45 months old). Each data file contains
two columns of data in text format. The first column is the time (in
seconds), and the second column is the stride interval (in seconds)
or the gait cycle duration, the time from heel strike to heel strike
of the same foot.</p>
<p>A summary of pertinent data about the subjects is presented in the
table below, which is also available as a <a href="table.csv">text (.csv)
file</a>.</p>
<div class="edbtable">
<table >
<tr>
<th><b>Subject ID</b></td>
<th><b>Age (months)</b></td>
<th><b>Gender</b></td>
<th><b>Height (inches)</b></td>
<th><b>Weight (lbs)</b></td>
<th><b>Leg length (inches)</b></td>
<th><b>Speed (m/sec)</b></td>
<th><b>Group</b></td>
</tr>
<tr>
<td>1</td>
<td>40</td>
<td>M</td>
<td>40.5</td>
<td>43</td>
<td>23</td>
<td>1.04289</td>
<td>Young</td>
</tr>
<tr>
<td>2</td>
<td>45</td>
<td>F</td>
<td>40</td>
<td>35</td>
<td>20</td>
<td>1.05322</td>
<td>Young</td>
</tr>
<tr>
<td>3</td>
<td>47</td>
<td>F</td>
<td>39.5</td>
<td>35</td>
<td>21</td>
<td>0.98953</td>
<td>Young</td>
</tr>
<tr>
<td>4</td>
<td>48</td>
<td>M</td>
<td>40</td>
<td>37</td>
<td>20</td>
<td>1.01551</td>
<td>Young</td>
</tr>
<tr>
<td>5</td>
<td>49</td>
<td>M</td>
<td>39</td>
<td>36</td>
<td>20</td>
<td>0.82461</td>
<td>Young</td>
</tr>
<tr>
<td>6</td>
<td>49</td>
<td>F</td>
<td>40</td>
<td>30</td>
<td>21</td>
<td>1.00591</td>
<td>Young</td>
</tr>
<tr>
<td>7</td>
<td>52</td>
<td>F</td>
<td>43</td>
<td>50</td>
<td>22</td>
<td>1.02284</td>
<td>Young</td>
</tr>
<tr>
<td>8</td>
<td>52</td>
<td>F</td>
<td>41</td>
<td>34</td>
<td>21</td>
<td>0.89579</td>
<td>Young</td>
</tr>
<tr>
<td>9</td>
<td>54</td>
<td>F</td>
<td>41.5</td>
<td>37</td>
<td>20</td>
<td>1.1377</td>
<td>Young</td>
</tr>
<tr>
<td>10</td>
<td>54</td>
<td>M</td>
<td>44</td>
<td>41</td>
<td>22</td>
<td>1.05846</td>
<td>Young</td>
</tr>
<tr>
<td>11</td>
<td>58</td>
<td>M</td>
<td>45</td>
<td>40</td>
<td>23</td>
<td>0.90919</td>
<td>Young</td>
</tr>
<tr>
<td>12</td>
<td>61</td>
<td>F</td>
<td>40</td>
<td>49</td>
<td>19.5</td>
<td>0.87913</td>
<td><BR></td>
</tr>
<tr>
<td>13</td>
<td>62</td>
<td>F</td>
<td>47</td>
<td>52</td>
<td>25</td>
<td>0.91113</td>
<td><BR></td>
</tr>
<tr>
<td>14</td>
<td>68</td>
<td>M</td>
<td>45</td>
<td>37</td>
<td>24</td>
<td>1.09948</td>
<td><BR></td>
</tr>
<tr>
<td>15</td>
<td>79</td>
<td>M</td>
<td>51.5</td>
<td>60</td>
<td>27</td>
<td>1.49298</td>
<td>Middle</td>
</tr>
<tr>
<td>16</td>
<td>79</td>
<td>M</td>
<td>50</td>
<td>54</td>
<td>23</td>
<td>1.17867</td>
<td>Middle</td>
</tr>
<tr>
<td>17</td>
<td>80</td>
<td>M</td>
<td>47.5</td>
<td>50</td>
<td>24.5</td>
<td>1.32969</td>
<td>Middle</td>
</tr>
<tr>
<td>18</td>
<td>80</td>
<td>M</td>
<td>48.5</td>
<td>52</td>
<td>25</td>
<td>1.26637</td>
<td>Middle</td>
</tr>
<tr>
<td>19</td>
<td>81</td>
<td>M</td>
<td>51</td>
<td>62</td>
<td>26</td>
<td>1.00829</td>
<td>Middle</td>
</tr>
<tr>
<td>20</td>
<td>82</td>
<td>F</td>
<td>42</td>
<td>39</td>
<td>21</td>
<td>1.22977</td>
<td>Middle</td>
</tr>
<tr>
<td>21</td>
<td>83</td>
<td>M</td>
<td>51</td>
<td>64</td>
<td>25</td>
<td>1.09665</td>
<td>Middle</td>
</tr>
<tr>
<td>22</td>
<td>85</td>
<td>F</td>
<td>50</td>
<td>60</td>
<td>25</td>
<td>1.26261</td>
<td>Middle</td>
</tr>
<tr>
<td>23</td>
<td>85</td>
<td>F</td>
<td>47</td>
<td>46</td>
<td>23.5</td>
<td>1.28939</td>
<td>Middle</td>
</tr>
<tr>
<td>24</td>
<td>87</td>
<td>F</td>
<td>47</td>
<td>45</td>
<td>25</td>
<td>1.1377</td>
<td>Middle</td>
</tr>
<tr>
<td>25</td>
<td>87</td>
<td>M</td>
<td>51</td>
<td>72</td>
<td>25</td>
<td>1.11097</td>
<td>Middle</td>
</tr>
<tr>
<td>26</td>
<td>88</td>
<td>F</td>
<td>48</td>
<td>55</td>
<td>24.5</td>
<td>1.23333</td>
<td>Middle</td>
</tr>
<tr>
<td>27</td>
<td>89</td>
<td>M</td>
<td>51</td>
<td>53</td>
<td>26</td>
<td>1.12269</td>
<td>Middle</td>
</tr>
<tr>
<td>28</td>
<td>89</td>
<td>M</td>
<td>50</td>
<td>57</td>
<td>26</td>
<td>1.05322</td>
<td>Middle</td>
</tr>
<tr>
<td>29</td>
<td>90</td>
<td>M</td>
<td>48</td>
<td>48</td>
<td>25.5</td>
<td>1.08824</td>
<td>Middle</td>
</tr>
<tr>
<td>30</td>
<td>91</td>
<td>F</td>
<td>52</td>
<td>75</td>
<td>30</td>
<td>1.27778</td>
<td>Middle</td>
</tr>
<tr>
<td>31</td>
<td>91</td>
<td>F</td>
<td>50</td>
<td>62</td>
<td>25</td>
<td>1.36378</td>
<td>Middle</td>
</tr>
<tr>
<td>32</td>
<td>92</td>
<td>F</td>
<td>49</td>
<td>55</td>
<td>24</td>
<td>1.1469</td>
<td>Middle</td>
</tr>
<tr>
<td>33</td>
<td>92</td>
<td>F</td>
<td>51.5</td>
<td>58</td>
<td>28</td>
<td>1.26637</td>
<td>Middle</td>
</tr>
<tr>
<td>34</td>
<td>94</td>
<td>F</td>
<td>48</td>
<td>45</td>
<td>28.5</td>
<td>1.07722</td>
<td>Middle</td>
</tr>
<tr>
<td>35</td>
<td>101</td>
<td>F</td>
<td>54</td>
<td>60</td>
<td>26</td>
<td>1.07179</td>
<td><BR></td>
</tr>
<tr>
<td>36</td>
<td>129</td>
<td>F</td>
<td>56</td>
<td>70</td>
<td>33</td>
<td>1.41362</td>
<td><BR></td>
</tr>
<tr>
<td>37</td>
<td>130</td>
<td>M</td>
<td>56</td>
<td>78</td>
<td>27</td>
<td>1.17541</td>
<td><BR></td>
</tr>
<tr>
<td>38</td>
<td>130</td>
<td>F</td>
<td>58</td>
<td>89</td>
<td>32</td>
<td>1.30923</td>
<td><BR></td>
</tr>
<tr>
<td>39</td>
<td>133</td>
<td>F</td>
<td>60</td>
<td>88</td>
<td>33</td>
<td>1.26261</td>
<td>Old</td>
</tr>
<tr>
<td>40</td>
<td>134</td>
<td>F</td>
<td>61</td>
<td>104</td>
<td>31</td>
<td>1.19522</td>
<td>Old</td>
</tr>
<tr>
<td>41</td>
<td>138</td>
<td>F</td>
<td>59</td>
<td>89</td>
<td>31</td>
<td>1.11097</td>
<td>Old</td>
</tr>
<tr>
<td>42</td>
<td>138</td>
<td>M</td>
<td>59</td>
<td>84</td>
<td>28</td>
<td>1.32143</td>
<td>Old</td>
</tr>
<tr>
<td>43</td>
<td>139</td>
<td>M</td>
<td>58</td>
<td>81</td>
<td>30.5</td>
<td>1.28939</td>
<td>Old</td>
</tr>
<tr>
<td>44</td>
<td>139</td>
<td>F</td>
<td>55</td>
<td>80</td>
<td>28</td>
<td>1.35942</td>
<td>Old</td>
</tr>
<tr>
<td>45</td>
<td>142</td>
<td>M</td>
<td>58</td>
<td>80</td>
<td>29</td>
<td>1.32969</td>
<td>Old</td>
</tr>
<tr>
<td>46</td>
<td>148</td>
<td>M</td>
<td>64</td>
<td>90</td>
<td>33</td>
<td>1.34652</td>
<td>Old</td>
</tr>
<tr>
<td>47</td>
<td>148</td>
<td>M</td>
<td>59.5</td>
<td>90</td>
<td>29</td>
<td>1.47743</td>
<td>Old</td>
</tr>
<tr>
<td>48</td>
<td>153</td>
<td>M</td>
<td>64</td>
<td>113</td>
<td>31</td>
<td>1.23333</td>
<td>Old</td>
</tr>
<tr>
<td>49</td>
<td>158</td>
<td>M</td>
<td>64</td>
<td>130</td>
<td>33</td>
<td>1.25516</td>
<td>Old</td>
</tr>
<tr>
<td>50</td>
<td>163</td>
<td>M</td>
<td>70</td>
<td>143</td>
<td>37</td>
<td>1.21571</td>
<td>Old</td>
</tr>
</table>
</div>
<p>
For more information, please see this <a
href="../jap/gait-reprint.html">paper</a> from the Journal of Applied
Physiology, or contact <a
href="mailto:jhausdor@bidmc.harvard.edu">Dr. Jeff Hausdorff</a>.</p>