diff --git a/EcomAnalysis/Form1.cs b/EcomAnalysis/Form1.cs
index a7314e8..63f88ad 100644
--- a/EcomAnalysis/Form1.cs
+++ b/EcomAnalysis/Form1.cs
@@ -56,6 +56,13 @@
         /// 解析
         /// </summary>
         private void Analyze() {
+            // 定数
+            const double RR2HB = 60000.0;  // RR間隔(ms)から心拍数への変換係数
+            const int HB_MIN = 20;          // 心拍数の変動範囲の最小値
+            const int HB_MAX = 200;         // 心拍数の変動範囲の最大値
+            const int RR_MIN = (int)RR2HB / HB_MAX; // RR間隔の変動範囲の最小値
+            const int RR_MAX = (int)RR2HB / HB_MIN; // RR間隔の変動範囲の最大値
+
             // FB回数
             var fbCounts = new int[5];
             var fbPts = new int[5];
@@ -80,22 +87,27 @@
                         dat.OrderBy(s => s.SceneTime).Select(s=>s.ContactTime).Last();
                     scDat.Latency = dat.Where(c => c.Feedback > 0).Count()==0 ? 0 : 
                         dat.Where(c => c.Feedback > 0).Select(s => s.SceneTime).First();
-                    scDat.MeanRR = 60000.0 / dat.Select(s => s.RR).Average();
+                    var validRR = dat.Where(s => s.RR >= RR_MIN && s.RR <= RR_MAX);
+                    scDat.Beat = validRR.Count() > 0 ? RR2HB / validRR.Select(s => s.RR).Average() : 0;
 
                     var items = new string[] { 
                         $"{scDat.SceneNo}", $"{scDat.FBCount} 回",
                         $"{scDat.ECTime:0.00} 秒", $"{scDat.Latency:0.00} 秒",
-                        $"{scDat.MeanRR:0.00} bpm" };
+                        $"{scDat.Beat:0.00} bpm" };
                     listView1.Items.Add(new ListViewItem(items));
                     allData.Add(scDat);
                 }
 
+                var validBeat = allData.Where(s => s.Beat > 0);
+                var meanBeat = validBeat.Count() > 0 ? validBeat.Select(s => s.Beat).Average() : 0;
+                var validLatency = allData.Where(s => s.FBCount > 0);
+                var meanLatency = validLatency.Count() > 0 ? validLatency.Select(s => s.Latency).Average() : 0;
                 listView1.Items.Add(new ListViewItem(new string[] {
                     "平均",
                     $"{allData.Select(s=>s.FBCount).Average():0.00} 回",
                     $"{allData.Select(s=>s.ECTime).Average():0.00} 秒",
-                    $"{allData.Select(s=>s.Latency).Average():0.00} 秒",
-                    $"{allData.Select(s=>s.MeanRR).Average():0.00} bpm" }));
+                    $"{meanLatency:0.00} 秒",
+                    $"{meanBeat:0.00} bpm" }));
             }
 
             // 表示
diff --git a/EcomAnalysis/LogData.cs b/EcomAnalysis/LogData.cs
index 7a8d0f4..f9d3e0f 100644
--- a/EcomAnalysis/LogData.cs
+++ b/EcomAnalysis/LogData.cs
@@ -33,6 +33,6 @@
         public int FBCount;
         public double ECTime;
         public double Latency;
-        public double MeanRR;
+        public double Beat;
     }
 }