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https://www.readbyqxmd.com/read/28078981/resilience-to-alzheimer-s-disease-the-role-of-physical-activity
#1
Pedrinolla Anna, Schena Federico, Venturelli Massimo
BACKGROUND: Although Alzheimer's disease (AD) is a neurodegenerative pathology characterized by accumulation of β-amyloid plaques and neurofibrillary tangles at cerebral level, recent studies highlighted that AD might be the result of many altered physiological processes occurring at whole-organism level. The ability to adapt to stressors by "bending" but not "breaking" can be considered as "resilience". Individuals incline to withstand such pathophysiological challenges, can be considered more resilient than those that do not...
January 11, 2017: Current Alzheimer Research
https://www.readbyqxmd.com/read/28077934/serum-reference-value-of-two-potential-doping-candidates-myostatin-and-insulin-like-growth-factor-i-in-the-healthy-young-male
#2
Der-Sheng Han, Chi-Huang Huang, Ssu-Yuan Chen, Wei-Shiung Yang
BACKGROUND: Myostatin negatively regulates muscle growth, and its inhibition by suitable proteins can increase muscle bulk and exercise performance. However, the reference values of serum myostatin in athletes performing strength training are still lacking. METHODS: A cross-sectional study recruiting28 male collegiate athletes performing strength training and 29 age-matched normal controls was conducted. The serum concentration of myostatin and insulin-like growth factor 1 (IGF-1), grip strength, and body composition were the main outcome measures...
2017: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/28074412/a-scientific-rationale-to-improve-resistance-training-prescription-in-exercise-oncology
#3
Ciaran M Fairman, Michael C Zourdos, Eric R Helms, Brian C Focht
To date, the prevailing evidence in the field of exercise oncology supports the safety and efficacy of resistance training to attenuate many oncology treatment-related adverse effects, such as risk for cardiovascular disease, increased fatigue, and diminished physical functioning and quality of life. Moreover, findings in the extant literature supporting the benefits of exercise for survivors of and patients with cancer have resulted in the release of exercise guidelines from several international agencies...
January 10, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28072848/physiologic-determinants-of-exercise-capacity-in-pulmonary-langerhans-cell-histiocytosis-a-multidimensional-analysis
#4
Camille Rolland-Debord, Stephanie Fry, Jonathan Giovannelli, Carole Langlois, Nicolas Bricout, Bernard Aguilaniu, Agnes Bellocq, Olivier Le Rouzic, Stephane Dominique, Alain Delobbe, Geraldine François, Abdellatif Tazi, Benoit Wallaert, Cecile Chenivesse
BACKGROUND: Reduced exercise capacity severely impacts quality of life in pulmonary Langerhans cell histiocytosis. Ascertaining mechanisms that impair exercise capacity is necessary to identify targets for symptomatic treatments. METHODS: Dyspnea, pulmonary function tests and cardiopulmonary exercise test were analysed in 62 study participants. Data were compared between subjects with impaired and normal aerobic capacity (V'O2 peak less than 84% versus 84% predicted or more)...
2017: PloS One
https://www.readbyqxmd.com/read/28069473/high-intensity-training-improves-global-and-segmental-strains-in-severe-congestive-heart-failure
#5
Yair Blumberg, Offir Ertracht, Itai Gershon, Noa Bachner-Hinenzon, Tali Reuveni, Shaul Atar
BACKGROUND: High intensity training (HIT) is superior to moderate aerobic training (MAT) for improving quality of life in congestive heart failure (CHF) patients. Speckle tracking echocardiography (STE) has recently been suggested for estimation of left ventricle global and regional function. AIMS: We evaluated the utility of STE for characterizing differences in cardiac function following MAT or HIT in a CHF rat model. METHODS AND RESULTS: Following baseline physiological assessment, CHF was induced by coronary artery ligation in Sprague-Dawley rats...
January 6, 2017: Journal of Cardiac Failure
https://www.readbyqxmd.com/read/28068656/mechanisms-of-improved-exercise-performance-under-hyperoxia
#6
Silvia Ulrich, Elisabeth D Hasler, Séverine Müller-Mottet, Stephan Keusch, Michael Furian, Tsogyal D Latshang, Simon Schneider, Stéphanie Saxer, Konrad E Bloch
BACKGROUND: The impact of hyperoxia on exercise limitation is still incompletely understood. OBJECTIVES: We investigated to which extent breathing hyperoxia enhances the exercise performance of healthy subjects and which physiologic mechanisms are involved. METHODS: A total of 32 healthy volunteers (43 ± 15 years, 12 women) performed 4 bicycle exercise tests to exhaustion with ramp and constant-load protocols (at 75% of the maximal workload [Wmax] on FiO2 0...
January 10, 2017: Respiration; International Review of Thoracic Diseases
https://www.readbyqxmd.com/read/28067740/update-on-management-of-type-1-diabetes-and-type-2-diabetes-in-athletes
#7
Jane E Yardley, Sheri R Colberg
Optimal blood glucose management still remains the biggest challenge in active individuals with diabetes, particularly in insulin users, but some newer strategies have been introduced to maintain blood glucose control. Recent studies emphasize the importance of exercise intensity on glycemic balance. In individuals with type 1 and type 2 diabetes, both resistance and high-intensity intermittent exercise have been shown to confer beneficial physiological adaptations in training studies, while also showing acute glycemic benefits from single sessions...
January 2017: Current Sports Medicine Reports
https://www.readbyqxmd.com/read/28067101/promoting-a-culture-of-prehabilitation-for-the-surgical-cancer-patient
#8
Francesco Carli, Chelsia Gillis, Celena Scheede-Bergdahl
BACKGROUND: Traditional rehabilitative approaches to perioperative cancer care have focused on the postoperative period to facilitate the return to presurgical baseline conditions. However, there is some realization that the preoperative period can be a very effective time for intervention as the patients are more amenable to target their physiological condition to prepare to overcome the metabolic cost of the surgical stress. METHODS: We undertook a narrative review of the current literature on surgical prehabilitation and discussed the current evidence of preoperative interventions before cancer surgery in order to increase physiological reserve before surgery and accelerate postoperative recovery...
January 9, 2017: Acta Oncologica
https://www.readbyqxmd.com/read/28061925/hypoxia-occurrence-in-a-military-aviator-below-3048-m
#9
Lesli R Tristan
INTRODUCTION: Despite technological advances, hypoxia remains a concern in aviation. Hypoxia can present with a vast array of symptoms that are unique to each aviator. Military aviators undergo hypoxia awareness trainings to learn their unique constellation of hypoxia symptoms. CASE REPORT: This case report describes a military aviator who was flying in a B1 when the cabin depressurized. While performing the emergency checklist, the aviator was moving about the cabin and began to experience hypoxia symptoms...
January 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28057105/-precision-nutrition-in-the-era-of-precision-medicine
#10
P Z Chen, H Wang
Precision medicine has been increasingly incorporated into clinical practice and is enabling a new era for disease prevention and treatment. As an important constituent of precision medicine, precision nutrition has also been drawing more attention during physical examinations. The main aim of precision nutrition is to provide safe and efficient intervention methods for disease treatment and management, through fully considering the genetics, lifestyle (dietary, exercise and lifestyle choices), metabolic status, gut microbiota and physiological status (nutrient level and disease status) of individuals...
December 6, 2016: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
https://www.readbyqxmd.com/read/28056805/endurance-training-significantly-increases-serum-endocan-but-not-osteoprotegerin-levels-a-prospective-observational-study
#11
Michael Sponder, Ioana-Alexandra Campean, Michael Emich, Monika Fritzer-Szekeres, Brigitte Litschauer, Jutta Bergler-Klein, Senta Graf, Jeanette Strametz-Juranek
BACKGROUND: Endocan (EN) was suggested a potential inflammatory and cardiovascular disease (CVD) marker which might also be involved in renal failure and/or renal failure-associated vascular events. It is not clear whether osteoprotegerin (OPG) is a pro- or anti-atherogenic factor, however, it is agreed upon that OPG is elevated in subjects with increased calcification status. The aim of the study was to investigate the influence of long-term physical activity on serum endocan (EN) and osteoprotegerin-levels...
January 5, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28055244/canadian-society-for-exercise-physiology-symposium-on-integrative-physiology-honouring-dr-bengt-saltin-the-use-of-exercise-to-study-integrative-physiology
#12
Coral L Murrant, Maureen J MacDonald
No abstract text is available yet for this article.
January 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28055243/a-tribute-to-bengt-saltin-the-use-of-exercise-to-study-integrative-physiology-hommage-%C3%A3-bengt-saltin-le-recours-%C3%A3-l-exercice-pour-%C3%A3-tudier-la-physiologie-int%C3%A3-grative
#13
(no author information available yet)
No abstract text is available yet for this article.
January 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28051947/early-life-effects-on-adult-physical-activity-concepts-relevance-and-experimental-approaches
#14
Theodore Garland, Marcell D Cadney, Robert A Waterland
Locomotion is a defining characteristic of animal life and plays a crucial role in most behaviors. Locomotion involves physical activity, which can have far-reaching effects on physiology and neurobiology, both acutely and chronically. In human populations and in laboratory rodents, higher levels of physical activity are generally associated with positive health outcomes, although excessive exercise can have adverse consequences. Whether and how such relationships occur in wild animals is unknown. Behavioral variation among individuals arises from genetic and environmental factors and their interactions as well as from developmental programming (persistent effects of early-life environment)...
January 2017: Physiological and Biochemical Zoology: PBZ
https://www.readbyqxmd.com/read/28051345/how-does-interval-training-prescription-impact-physiological-and-perceptual-responses
#15
Stephen Seiler, Øystein Sylta
The purpose of this study was to compare physiological responses and perceived exertion among well trained cyclists (n=63) performing three different high intensity interval training (HIIT) prescriptions differing in work bout duration and accumulated duration, but all prescribed with maximal session effort. Data are presented as mean(Standard Deviation). Subjects (male, 38(8) y, VO2peak 62(6) mL.kg(-1) min(-1)) completed up to 24 HIIT sessions over 12 weeks as part of a training intervention study. Sessions were prescribed as 4x16 min, 4x8 min, or 4x4 min with 2 min recovery periods (8 sessions of each prescription, balanced over time)...
January 4, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28050930/the-effects-of-crushed-ice-ingestion-prior-to-steady-state-exercise-in-the-heat
#16
Matthew Zimmermann, Grant Landers, Karen E Wallman, Jacinta Saldaris
This study examined the physiological effects of crushed ice ingestion prior to steady state exercise in the heat. Ten healthy males with age (23±3 y), height (176.9±8.7 cm), body-mass (73.5±8.0 kg), V̇O2peak (48.5±3.6 mL·kg·min(-1)) participated in the study. Participants completed 60 min of cycling at 55% of their V̇O2peak preceded by 30 min of pre-cooling whereby 7 g·kg(-1) of thermoneutral water (CON) or crushed ice (ICE) was ingested. The reduction in Tc at the conclusion of pre-cooling was greater in ICE (-0...
January 4, 2017: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/28049743/alternative-indexes-to-estimate-the-functional-capacity-from-the-6-minute-walk-test-in-children-and-adolescents-with-cystic-fibrosis
#17
Renata Tiemi Okuro, Maria Angela Gonçalves de Oliveira Ribeiro, José Dirceu Ribeiro, Rafaela Coelho Minsky, Camila Isabel Santos Schivinski
BACKGROUND: Cystic fibrosis is a multi-systemic disease related to reduced functional capacity. The distance covered in the 6-min walk test (6MWT) has been known to assess functional capacity, but little is known about other indexes that can be derived. We sought to compare the performance during the 6MWT and the estimated indexes of functional capacity from the 6MWT between subjects with cystic fibrosis (CF) and healthy individuals as well as to assess the relationship among these indexes and disease severity, pulmonary function, and nutritional status in CF...
January 3, 2017: Respiratory Care
https://www.readbyqxmd.com/read/28045078/positive-association-between-physical-activity-and-per3-expression-in-older-adults
#18
Masaki Takahashi, Atsushi Haraguchi, Yu Tahara, Natsumi Aoki, Mayuko Fukazawa, Kumpei Tanisawa, Tomoko Ito, Takashi Nakaoka, Mitsuru Higuchi, Shigenobu Shibata
The circadian clock regulates many physiological functions including physical activity and feeding patterns. In addition, scheduled exercise and feeding themselves can affect the circadian clock. The purpose of the present study was to investigate the relationship between physical/feeding activity and expression of clock genes in hair follicle cells in older adults. Twenty adult men (age, 68 ± 7 years, mean ± SE) were examined in this cross-sectional study. Prior to hair follicle cell collection, the participants were asked to wear a uniaxial accelerometer for one week...
January 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28042532/satellite-cells-contribution-to-exercise-mediated-muscle-hypertrophy-and-repair
#19
REVIEW
Behzad Bazgir, Rouhollah Fathi, Mojtaba Rezazadeh Valojerdi, Paul Mozdziak, Alireza Asgari
Satellite cells (SCs) are the most abundant skeletal muscle stem cells. They are widely recognized for their contributions to maintenance of muscle mass, regeneration and hypertrophy during the human life span. These cells are good candidates for cell therapy due to their self-renewal capabilities and presence in an undifferentiated form. Presently, a significant gap exists between our knowledge of SCs behavior and their application as a means for human skeletal muscle tissue repair and regeneration. Both physiological and pathological stimuli potentially affect SCs activation, proliferation, and terminal differentiation the former category being the focus of this article...
2017: Cell Journal
https://www.readbyqxmd.com/read/28041984/exploring-the-possible-mechanisms-of-blunted-cardiac-reactivity-to-acute-psychological-stress
#20
Ryan C Brindle, Anna C Whittaker, Adam Bibbey, Douglas Carroll, Annie T Ginty
Blunted cardiovascular reactivity to acute psychological stress has been linked to a range of adverse health and behavioral outcomes. However, the origins of blunted reactivity remain unclear. The current study aimed to explore the following possibilities: different appraisals of task stressfulness and/or difficulty, diminished task effort, or reduced physiological capacity to respond. Individuals characterized, via pre-screening, as blunted (n=17) or exaggerated (n=16) heart rate (HR) reactors to acute psychological stress (socially evaluative mental arithmetic) were exposed to a psychological stress, cold pressor and exercise tasks during a follow-up testing session while HR and blood pressure (BP) were measured...
December 30, 2016: International Journal of Psychophysiology
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