Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 5 of 5
Full-Text Articles in Life Sciences
The Influence Of Tissue Plasminogen Activator I/D Polymorphism On The Tpa Response To Exercise, Adam M. Coughlin
The Influence Of Tissue Plasminogen Activator I/D Polymorphism On The Tpa Response To Exercise, Adam M. Coughlin
International Journal of Exercise Science
International Journal of Exercise Science 11(3): 1136-1144, 2018. The purpose was to determine if the Alu-insertion (I)/deletion (D) polymorphism of the tissue plasminogen activator (tPA) gene influences the tPA response to maximal exercise. Fifty male subjects (age = 23.6 ± 4.7 yrs) completed a maximal treadmill exercise test. Blood samples were drawn before and immediately after exercise for determination of plasma tPA antigen and activity. Isolated DNA was amplified via polymerase chain reaction, electrophoresed, and visually amplified to determine tPA genotype. Subjects were classified as possessing the D allele (D) (n = 28) or being homozygous for the I allele …
Division I Female Cross-Country Runners’ Perception Of Eating Behaviors And Attitudes Toward Health: A Pilot Study, Laurie Stickler, Marissa Thomas, Laura Kate Morse
Division I Female Cross-Country Runners’ Perception Of Eating Behaviors And Attitudes Toward Health: A Pilot Study, Laurie Stickler, Marissa Thomas, Laura Kate Morse
International Journal of Exercise Science
International Journal of Exercise Science 11(3): 941-956, 2018.The complexity behind nutritional decisions and the impact of these decisions on overall health (both physical and emotional) in the Division I female runner is not yet well understood. Thus, the purpose of this study was to explore the perspectives of female collegiate cross-country runners from a Division I school on eating behaviors and attitudes toward health. In this qualitative study, six NCAA Division I female collegiate cross-country runners participated in individual interviews. Through qualitative analysis, three themes (Nutritional Views, Identity as a Runner, and Psychological Factors) and 11 subthemes emerged. The …
Childhood Cancer And Treatment Effects On Motor Performance, Jessica A. Peterson, Tom V. Darling
Childhood Cancer And Treatment Effects On Motor Performance, Jessica A. Peterson, Tom V. Darling
International Journal of Exercise Science
International Journal of Exercise Science 11(3): 657-668, 2018. Children with cancer report motor problems several years post treatment. Physical performance limitations can restrict the survivor's ability to participate fully in daily activities necessary for self-care, family life, and/or work. Motor performance in childhood cancer could be an important measure in symptom research. This review addresses motor performance limitations caused by cancer treatment in childhood cancer survivors. Several studies found performance deficits in strength and flexibility. Conflicting research in balance, coordination, and reaction time needs further consideration. The findings may indicate muscle atrophy as a cause of performance limitations rather than …
Effects Of Single-Dose Dietary Nitrate On Oxygen Consumption During And After Maximal And Submaximal Exercise In Healthy Humans, Genevieve M. Kocoloski, Anne R. Crecelius
Effects Of Single-Dose Dietary Nitrate On Oxygen Consumption During And After Maximal And Submaximal Exercise In Healthy Humans, Genevieve M. Kocoloski, Anne R. Crecelius
International Journal of Exercise Science
International Journal of Exercise Science 11(3): 214-225, 2018. Dietary nitrate (NO3-) has been shown to reduce oxygen consumption (VO2) during moderate to high-intensity (e.g. time to fatigue, time trials) exercise and often in trained athletes. However, less is known regarding prolonged exercise and the potential impact of NO3- on post-exercise excess oxygen consumption (EPOC), particularly in untrained individuals, who may have different metabolic goals during exercise than trained individuals. We tested the hypothesis that acute nitrate supplementation in the form of beet root juice will significantly decrease both VO2 during maximal exercise …
The Effect Of A Single Bout Of High Intensity Intermittent Exercise On Glucose Tolerance In Non-Diabetic Older Adults, Hannah M. Lithgow, Melanie Leggate
The Effect Of A Single Bout Of High Intensity Intermittent Exercise On Glucose Tolerance In Non-Diabetic Older Adults, Hannah M. Lithgow, Melanie Leggate
International Journal of Exercise Science
International Journal of Exercise Science 11(3): 95-105, 2018. Our aim was to investigate the acute effects of a single bout of high intensity intermittent training (HIIT) on glucose tolerance and other physiological and metabolic markers in non-diabetic older adults. Fourteen healthy older adults (age, 64 ± 2 y; BMI, 25.7 ± 2.8 kg·m-2) performed two acute exercise trials: continuous moderate intensity exercise (MOD) and HIIT, with the response to an oral glucose tolerance test (OGTT) determined <24 hours after. Inflammatory, haematological, and lipid parameters were also assessed the day after each trial. There was an effect of the trials on the insulin response to an OGTT (P=0.047), but not the glucose response. Following an acute bout of HIIT, insulin concentration during an OGTT was elevated at 60 min compared to the control trial (P=0.045), indicating more insulin was secreted, but glucose concentration was unchanged in all trials. The study findings demonstrate that a single bout of HIIT affects the insulin response but not the glycaemic response to a glucose load, proffering a potential benefit for metabolic health in older adults.