diff --git a/rowers/forms.py b/rowers/forms.py
index 5501e224..925174b0 100644
--- a/rowers/forms.py
+++ b/rowers/forms.py
@@ -153,6 +153,10 @@ class InstrokeForm(forms.Form):
     metric = forms.ChoiceField(label='metric',choices=(('a','a'),('b','b')))
     spm_min = forms.IntegerField(initial=15,label='SPM Min',widget=HiddenInput)
     spm_max = forms.IntegerField(initial=45,label='SPM Max',widget=HiddenInput)
+    activeminutesmin = forms.IntegerField(
+        required=False, initial=0, widget=forms.HiddenInput())
+    activeminutesmax = forms.IntegerField(
+        required=False, initial=0, widget=forms.HiddenInput())
 
     def __init__(self, *args, **kwargs):  # pragma: no cover
         choices = kwargs.pop('choices', [])
diff --git a/rowers/templates/instroke_interactive.html b/rowers/templates/instroke_interactive.html
index ade61f5c..7679dd0b 100644
--- a/rowers/templates/instroke_interactive.html
+++ b/rowers/templates/instroke_interactive.html
@@ -64,18 +64,40 @@ $( function() {
     max: 60,
     values: [ {{ spm_min }}, {{ spm_max }} ],
     slide: function( event, ui ) {
+      $( "#amountspm" ).val(ui.values[ 0 ] + "  - " + ui.values[ 1 ] );
       $( "#id_spm_min" ).val( ui.values[ 0 ]);
       $( "#id_spm_max" ).val(ui.values[ 1 ] );
-      $( "#spm_min_info" ).text( ui.values[ 0 ]);
-      $( "#spm_max_info" ).text(ui.values[ 1 ] );
+
 
     }
 
   });
+  $( "#amountspm" ).val($( "#slider-range" ).slider( "values", 0 ) +
+    " - " + $( "#slider-range" ).slider( "values", 1 ));
+
+} );
+</script>
+<script>
   $("#instrokeform").mouseup(function() {
     submit_form();
   });
-
+</script>
+<script>
+$( function() {
+  console.log({{ activeminutesmin }}, {{ activeminutesmax}}, 'active range');
+  $( "#slider-timerange" ).slider({
+    range: true,
+    min: 0,
+    max: {{ maxminutes }},
+    values: [ {{ activeminutesmin }}, {{ activeminutesmax }} ],
+    slide: function( event, ui ) {
+      $( "#amount" ).val(ui.values[ 0 ] + " min - " + ui.values[ 1 ] + " min " );
+      $("#id_activeminutesmin").val(ui.values[0]);
+      $("#id_activeminutesmax").val(ui.values[1]);
+    }
+  });
+  $( "#amount" ).val($( "#slider-timerange" ).slider( "values", 0 ) +
+    " min - " + $( "#slider-timerange" ).slider( "values", 1 ) + " min ");
 } );
 </script>
 {% endblock %}
@@ -97,6 +119,25 @@ $( function() {
 
 <h1>In Stroke Metrics</h1>
 <ul class="main-content">
+  <li class="grid_4">
+    <form id="instrokeform" enctype="multipart/form-data" action="" method="post">
+    {% csrf_token %}
+    <table>
+      {{ form.as_table }}
+    </table>
+    <div id="slider-range"></div>
+    <p>
+      <label for="amountspm">Active Range:</label>
+      <input type="text" id="amountspm" readonly style="border:0; color:#1c75bc; font-weight:bold;">
+    </p>
+    <div id="slider-timerange"></div>
+    <p>
+      <label for="amount">Active Range:</label>
+      <input type="text" id="amount" readonly style="border:0; color:#1c75bc; font-weight:bold;">
+    </p>
+    <input name='form' class="button" type="submit" value="Submit">
+    </form>
+  </li>
   <li class="grid_4">
     <div id="dd" class="flexplot">
       {{ dd|safe }}
@@ -107,22 +148,6 @@ $( function() {
       {{ the_div|safe }}
     </div>
   </li>
-  <li class="grid_4">
-    <form id="instrokeform" enctype="multipart/form-data" action="" method="post">
-    {% csrf_token %}
-    <table>
-      {{ form.as_table }}
-    </table>
-    <div id="slider-container">
-      <span>SPM (slide to change):</span>
-      <span id="spm_min_info">{{ spm_min }}</span>
-      <span>&nbsp;-&nbsp;</span>
-      <span id="spm_max_info">{{ spm_max }}</span>
-    <hr id="slider-range" />
-    </div>
-    <input name='form' class="button" type="submit" value="Submit">
-    </form>
-  </li>
 </ul>
 
 
diff --git a/rowers/views/workoutviews.py b/rowers/views/workoutviews.py
index 34e57910..0ba1d350 100644
--- a/rowers/views/workoutviews.py
+++ b/rowers/views/workoutviews.py
@@ -2934,26 +2934,40 @@ def instroke_chart_interactive(request, id=0):
     spm_min = 15
     spm_max = 45
 
+    activeminutesmax = int(rowdata.duration/60.)
+    activeminutesmin = 0
+    maxminutes = activeminutesmax
+
     if request.method == 'POST':
         form = InstrokeForm(request.POST,choices=instrokemetrics)
         if form.is_valid():
             metric = form.cleaned_data['metric']
             spm_min = form.cleaned_data['spm_min']
             spm_max = form.cleaned_data['spm_max']
+            activeminutesmin = form.cleaned_data['activeminutesmin']
+            activeminutesmax = form.cleaned_data['activeminutesmax']
+            
 
+    activesecondsmin = 60.*activeminutesmin
+    activesecondsmax = 60.*activeminutesmax
 
-    data = rowdata.get_instroke_data(metric,
-                                     spm_min=spm_min,
-                                     spm_max=spm_max)
+    data = rowdata.get_instroke_data(
+        metric,
+        spm_min=spm_min,
+        spm_max=spm_max,
+        )
 
-    script, div = instroke_interactive_chart(data, metric, w,
-                                             spm_min,
-                                             spm_max)
+    script, div = instroke_interactive_chart(
+        data, metric, w,
+        spm_min,
+        spm_max,
+        )
 
     # change to range spm_min to spm_max
-    vals, units, typ = rowdata.updateinterval_metric(
-        ' Cadence (stokes/min)', spm_min, mode='larger',
-        debug=False, smoothwindow=2.,)
+    vals, units, typ = rowdata.updateinterval_range(
+        ' Cadence (stokes/min)', spm_min, spm_max,
+        debug=False, smoothwindow=2.,
+        activewindow=[activesecondsmin, activesecondsmax])
 
     intervalstats = rowdata.allstats()
     itime, idist, itype = rowdata.intervalstats_values()
@@ -3013,6 +3027,9 @@ def instroke_chart_interactive(request, id=0):
                       'spm_max': spm_max,
                       'ds': ds,
                       'dd': dd,
+                      'activeminutesmin': activeminutesmin,
+                      'activeminutesmax': activeminutesmax,
+                      'maxminutes': maxminutes,
                   })