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Molecular switch matures heart cells derived from stem cells（图）
Molecular switch matures heart cells derived stem cells
2015/5/25
A molecular switch that seems to be essential for embryonic heart cells to grow into more mature, adult-like heart cells has been discovered. The discovery should help scientist better unde...
Heart Rate Recovery after Submaximal Exercise in Four Different Recovery Protocols in Male Athletes and Non-Athletes
Heart rate recovery autonomic activity active recovery physical activity
2015/5/7
The effects of different recovery protocols on heart rate recovery (HRR) trend through fitted heart rate (HR) decay curves were assessed. Twenty one trained male athletes and 19 sedentary male student...
Accuracy of the Polar S810i Heart Rate Monitor and the Sensewear Pro Armband to Estimate Energy Expenditure of Indoor Rowing Exercise in Overweight and Obese Individuals
Indirect calorimetry armband heart rate monitor energy expenditure indoor rowing
2015/5/5
Accurately assessing the energy expenditure (EE) of different types of physical activity is important for exercise prescription in obese individuals. The aim of this study was to examine the accuracy ...
A Comparison Between Ventilation and Heart Rate as Indicator of Oxygen Uptake During Different Intensities of Exercise
Physical activities light to moderate intensities steady state activities non-steady state activities
2015/5/4
The aim of this study is to compare the relation between ventilation (VE) and oxygen uptake (VO2) [VO2=ƒ(VE)] and between heart rate (HR) and VO2 [VO2=ƒ(HR)]. Each one of the subjects perfor...
Net Heart Rate to Prescribe Physical Activity in Middle-Aged to Older Active Adults
Net heart rate physical activity thresholds MET exercise prescription oxygen up-take
2015/4/24
This study had a twofold purpose: i) to develop a regression equation to estimate metabolic equivalent (MET) in walk/run by heart rate increment above rest (NetHR), and; ii) to determine NetHR thresho...
Exercise Limitations in a Competitive Cyclist Twelve Months Post Heart Transplantation
Transplant rehabilitation orthotopic transplant aerobic capacity
2015/4/24
It has been well documented that for heart transplant recipients (HTrecipient) post transplantation exercise capacity does not exceed 60% of healthy age-matched controls. Few studies have been underta...
Quantification of the Impaired Cardiac Output Response to Exercise in Heart Failure: Application of a Non-Invasive Device
Heart failure cardiac output oxygen uptake exercise testing
2015/4/23
An impaired cardiac output (CO) response to exercise is a hallmark of chronic heart failure (CHF), and the degree to which CO is impaired is related to the severity of CHF and prognosis. However, prac...
Arm . Combined Leg and Arm Exercise: Blood Pressure Responses and Ratings of Perceived Exertion at the Same Indirectly Determined Heart Rate
Diastolic blood pressure arm crank ergometer cross trainer
2015/4/23
Pre-participation screening is very important for prescribing and practising exercise safely. The aim of this study was to investigate both ratings of perceived exertion (RPE) and blood pressure respo...
Role of KATP Channels in Beneficial Effects of Exercise in Ischemic Heart Failure
CHRONIC HEART FAILURE ATP-SENSITIVE POTASSIUM CHANNELS GLIBENCLAMIDE CHRONIC EXERCISE CALCIUM CELL SURVIVAL
2017/4/20
Exercise training reduces pathological remodeling and improves cardiac function in ischemic heart failure; however, causal mechanisms underlying the cardiac benefits of exercise are poorly understood....
Prescribing and Regulating Exercise with RPE after Heart Transplant: A Pilot Study
AEROBIC EXERCISE CARDIAC DENERVATION HEART RATE HEART TRANSPLANTATION RATING OF PERCEIVED EXERTION REHABILITATION
2017/4/19
Purpose: The objective of this study is to analyze the use of the 6–20 RPE scale for prescribing and self-regulating heated water-based exercise (HEx) and land-based exercise (LEx) in heart transplant...
Discrepancy between training, competition and laboratory measures of maximum heart rate in NCAA division 2 distance runners
Competition heart rate laboratory performance running training
2015/4/17
A percentage of either measured or predicted maximum heart rate is commonly used to prescribe and measure exercise intensity. However, maximum heart rate in athletes may be greater during competition ...
Is the Soleus a Sentinel Muscle for Impaired Aerobic Capacity in Heart Failure?
CHRONIC HEART FAILURE SKELETAL MUSCLE SOLEUS EXERCISE CAPACITY
2017/4/14
Purpose: Skeletal muscle wasting is well documented in chronic heart failure (CHF). This article provides a more detailed understanding of the morphology behind this muscle wasting and the relation be...
ASIC3 Contributes to the Blunted Muscle Metaboreflex in Heart Failure
BLOOD PRESSURE AFFERENT NERVE ASIC3 HEART FAILURE
2017/4/14
Introduction: During exercise, the sympathetic nervous system is activated and blood pressure and HR increase. In heart failure (HF), the muscle metaboreceptor contribution to sympathetic outflow is a...
Determining Cardiovascular Disease Risk in Elementary School Children: Developing a Healthy Heart Score
Cardiovascular, children, physical activity, cardiovascular fitness, risk factors
2015/3/30
At least 50% of children have one or more cardiovascular disease (CVD) risk factor. We aimed to 1) determine the prevalence of CVD risk factors in a sample of Canadian children, and 2) create a Health...
Heart Rate During Sleep: Implications for Monitoring Training Status
Sleeping heart rate training response reliability
2015/3/11
Resting heart rate has sometimes been used as a marker of training status. It is reasonable to assume that the relationship between heart rate and training status should be more evident during sleep w...