diff --git a/ECTrainer2/BitalMonitor.cpp b/ECTrainer2/BitalMonitor.cpp
index aa2e0a0..f536e0b 100644
--- a/ECTrainer2/BitalMonitor.cpp
+++ b/ECTrainer2/BitalMonitor.cpp
@@ -47,7 +47,7 @@
 						if (RR > 0) {
 							_rrInterval.Put(RR);
 						}
-						//std::cout << "Read:" << RR << std::endl;
+						std::cout << "Read:" << RR << std::endl;
 					}
 					sp = pt + 1;
 				}
diff --git a/ECTrainer2/BitalMonitor.h b/ECTrainer2/BitalMonitor.h
index 02dec1c..2fe5620 100644
--- a/ECTrainer2/BitalMonitor.h
+++ b/ECTrainer2/BitalMonitor.h
@@ -16,5 +16,5 @@
 	bool Init();
 	bool MainLoop();
 	int GetRR() { return _rrInterval.Get(); }
-	int GetHB() { return _rrInterval.Get() ? 60000 / _rrInterval.Get() : 0; }
+	int GetHB() { return _rrInterval.Get() < 1 ? 0 : 60000 / _rrInterval.Get(); }
 };
diff --git a/ECTrainer2/RingBuffer.h b/ECTrainer2/RingBuffer.h
index 81c0e1f..15f1ca0 100644
--- a/ECTrainer2/RingBuffer.h
+++ b/ECTrainer2/RingBuffer.h
@@ -17,7 +17,7 @@
 	RingBuffer(int size);
 	~RingBuffer();
 	void Put(T value);
-	T Get();
+	T Get(int past = 0);
 	bool IsNew() { return _update; };
 };
 
@@ -54,8 +54,8 @@
 }
 
 template<class T>
-T RingBuffer<T>::Get() {
-	int read = _read;
+T RingBuffer<T>::Get(int past) {
+	int read = (_read + _size - past) % _size;
 	_mtxData[read].lock();
 	T value = _data[read];
 	_mtxData[read].unlock();