Ecological Momentary Assessments and the Science of Behavior Change
No abstract available (Source: Exercise and Sport Sciences Reviews)
Source: Exercise and Sport Sciences Reviews - December 16, 2016 Category: Sports Medicine Tags: Commentary to Accompany Source Type: research

Priscilla M. Clarkson Student Travel Award
No abstract available (Source: Exercise and Sport Sciences Reviews)
Source: Exercise and Sport Sciences Reviews - December 16, 2016 Category: Sports Medicine Tags: 2017 Undergraduate Travel Award Source Type: research

From the Editor
No abstract available (Source: Exercise and Sport Sciences Reviews)
Source: Exercise and Sport Sciences Reviews - December 16, 2016 Category: Sports Medicine Tags: Editorial Source Type: research

Decreased Myofilament Calcium Sensitivity Plays a Significant Role in Muscle Fatigue
Muscle fatigue can result from either the accumulation of metabolic by-products (e.g., Pi and H+) or a decrease in myoplasmic Ca++; however, individually, neither change can explain quantitatively the decrease in force capacity. Therefore, the emerging view is that, by decreasing the sensitivity of myofilaments to calcium, Pi and H+ act synergistically with decreased Ca++ levels to contribute to fatigue. (Source: Exercise and Sport Sciences Reviews)
Source: Exercise and Sport Sciences Reviews - September 18, 2016 Category: Sports Medicine Tags: Articles Source Type: research

Sympathetic Vasoconstriction in Skeletal Muscle: Adaptations to Exercise Training
Sympathetic vasoconstriction in the skeletal muscle vascular bed is essential for the regulation of vascular resistance and therefore control of blood pressure and muscle blood flow at rest and during exercise. In this article, we address the hypothesis that aerobic exercise training alters sympathetic vasoconstrictor responsiveness and enhances contraction-mediated inhibition of sympathetic vasoconstriction (functional sympatholysis) through a nitric oxide–dependent mechanism. (Source: Exercise and Sport Sciences Reviews)
Source: Exercise and Sport Sciences Reviews - September 18, 2016 Category: Sports Medicine Tags: Articles Source Type: research

The Age-Associated Reduction in Propulsive Power Generation in Walking
Propulsive power generation during push-off in walking decreases with advancing age. A common explanation is an accommodation for sarcopenia and muscle weakness. Yet, muscle strengthening often yields disappointing outcomes for walking performance. We examine the hypothesis that declines in force or power generating capacity of propulsive leg muscles cannot fully explain the age-related reduction in propulsive power generation during walking. (Source: Exercise and Sport Sciences Reviews)
Source: Exercise and Sport Sciences Reviews - September 18, 2016 Category: Sports Medicine Tags: Articles Source Type: research

Fatigue and Fatigability in Persons With Multiple Sclerosis
We examine the hypothesis that in persons with multiple sclerosis, fatigue — measured with a questionnaire — is attributable to interactions between the central nervous system and the immune system, which exacerbate both perceived fatigability and performance fatigability. Performance fatigability is represented by the decline in voluntary force during sustained contractions as a consequence of the inability to maintain high levels of voluntary activation. (Source: Exercise and Sport Sciences Reviews)
Source: Exercise and Sport Sciences Reviews - September 18, 2016 Category: Sports Medicine Tags: Articles Source Type: research

Peripheral Blood Flow Regulation in Human Obesity and Metabolic Syndrome
Both obesity and metabolic syndrome are important cardiovascular disease risk factors. In this review, we explore the hypothesis that young obese adults and adults with metabolic syndrome exhibit alterations in blood flow regulation that occur before the onset of overt cardiovascular dysfunction. (Source: Exercise and Sport Sciences Reviews)
Source: Exercise and Sport Sciences Reviews - June 17, 2016 Category: Sports Medicine Tags: Articles Source Type: research

Ribosome Biogenesis is Necessary for Skeletal Muscle Hypertrophy
Muscle hypertrophy occurs when the rate of protein synthesis exceeds the rate of degradation. A main factor determining the rate of protein synthesis is ribosome abundance or translational capacity. The production of ribosomes is a primary determinant of translational capacity. Based on studies from our laboratory, we propose the novel hypothesis that ribosome biogenesis is necessary for skeletal muscle hypertrophy. (Source: Exercise and Sport Sciences Reviews)
Source: Exercise and Sport Sciences Reviews - June 17, 2016 Category: Sports Medicine Tags: Articles Source Type: research

Aging Changes the Contribution of Spinal and Corticospinal Pathways to Control Balance
The maintenance of balance in an upright posture involves the modulation of the spinal and descending pathways converging onto the motor neurons that innervate the ankle plantar flexor muscles. The present article examines the hypothesis of an age-associated change in the respective contributions of spinal and corticospinal pathways to adjust the soleus muscle activity when standing. (Source: Exercise and Sport Sciences Reviews)
Source: Exercise and Sport Sciences Reviews - June 17, 2016 Category: Sports Medicine Tags: Articles Source Type: research

Posttranslational Arginylation Regulates Striated Muscle Function
In this article, we propose the hypothesis that the posttranslational arginylation of proteins, a process catalyzed by the enzyme arginyl-tRNA-transferase, regulates active and passive force generation in striated muscles. Specifically, we propose that proteins essential for muscle contraction and force production are regulated by arginylation, including myosin heavy chain, troponin, actin, and titin filaments. (Source: Exercise and Sport Sciences Reviews)
Source: Exercise and Sport Sciences Reviews - June 17, 2016 Category: Sports Medicine Tags: Articles Source Type: research

Cardiovascular Strain of Firefighting and the Risk of Sudden Cardiac Events
We present a theoretical model linking the cardiac, vascular, and hematological responses of firefighting to the triggering of sudden cardiac death in susceptible individuals. (Source: Exercise and Sport Sciences Reviews)
Source: Exercise and Sport Sciences Reviews - June 17, 2016 Category: Sports Medicine Tags: Articles Source Type: research

Why do Fire Ground Duties Trigger Sudden Cardiac Events in Firefighters?
No abstract available (Source: Exercise and Sport Sciences Reviews)
Source: Exercise and Sport Sciences Reviews - June 17, 2016 Category: Sports Medicine Tags: Commentary to Accompany Source Type: research

Time-Dependent Effects of Cardiovascular Exercise on Memory
We present new evidence supporting the hypothesis that the effects of cardiovascular exercise on memory can be regulated in a time-dependent manner. When the exercise stimulus is coupled temporally with specific phases of the memory formation process, a single bout of cardiovascular exercise may be sufficient to improve memory. (Source: Exercise and Sport Sciences Reviews)
Source: Exercise and Sport Sciences Reviews - March 19, 2016 Category: Sports Medicine Tags: Articles Source Type: research

Targeted Health Behavior Interventions Promoting Physical Activity: A Conceptual Model
This article presents a conceptual model illustrating a targeted approach to the design and delivery of health behavior interventions that focus on physical activity promotion. We hypothesize that researchers who i) enhance the sociocultural relevance of their core intervention components and ii) recognize the unique contributions of both intervention design and delivery will experience greater intervention engagement and improved outcomes. (Source: Exercise and Sport Sciences Reviews)
Source: Exercise and Sport Sciences Reviews - March 19, 2016 Category: Sports Medicine Tags: Articles Source Type: research