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https://www.readbyqxmd.com/read/28339836/differences-in-textural-properties-of-cooked-caponized-and-broiler-chicken-breast-meat
#1
J U-Chupaj, Y Malila, C Gamonpilas, K Kijroongrojana, M Petracci, S Benjakul, W Visessanguan
This study was aimed at evaluating textural properties of cooked chicken breast meats obtained from 3 production systems (conventional raising, feed modification, and caponization) and determining the relationship between instrumental parameters and sensory attributes associated with the texture of capon meat. Texture of cooked breast meats was determined using 3 instrumental methods: Warner-Bratzler Shear (WBS), texture profile analysis (TPA), and uniaxial compression (UC), and sensory analysis by trained panelists...
February 23, 2017: Poultry Science
https://www.readbyqxmd.com/read/28338375/an-updated-review-of-the-applied-physiology-of-american-collegiate-football-the-physical-demands-strength-conditioning-nutritional-considerations-and-injury-characteristics-of-america-s-favourite-game
#2
Hugh H K Fullagar, Robert McCunn, Andrew Murray
Whilst there are various avenues for performance improvement within collegiate American football (AF), there is no comprehensive evaluation of the collective array of resources around performance, physical conditioning and injury and training/game characteristics to guide future research and inform practitioners. Accordingly, the aim of the present review was to provide a current examination of these areas within collegiate AF. Recent studies show that there is a wide range of body compositions and strength characteristics between players, which appear to be influenced by playing position, level of play, training history/programming and time of season...
March 24, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28338365/movement-velocity-as-indicator-of-relative-intensity-and-level-of-effort-attained-during-the-set-in-pull-up-exercise
#3
Miguel Sánchez-Moreno, David Rodríguez-Rosell, Fernando Pareja-Blanco, Ricardo Mora-Custodio, Juan José González-Badillo
PURPOSE: to analyze the relationship between movement velocity and relative load (%1RM) in the pull-up exercise (PU), and to determine the pattern of repetition velocity loss during a single set to failure in pulling one's own body mass. METHODS: Fifty-two men (age = 26.5 ± 3.9 years, body mass = 74.3 ± 7.2 kg) performed a first evaluation (T1) consisting of an one-repetition maximum test (1RM), and a test of maximum number of repetitions to failure pulling one's own body mass (MNR) in the PU exercise...
March 24, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28337894/actn3-ace-genotypes-and-mitochondrial-genome-in-professional-soccer-players%C3%A2-performance
#4
V Galeandro, A Notarnicola, A Bianco, S Tafuri, L Russo, V Pesce, B Moretti, V Petruzzella
Two nuclear genes, ACTN3, encoding for the α-actinin skeletal muscle isoform 3, and ACE encoding the angiotensin-converting enzyme, have both been associated with quantitative physical performance traits in the general population. The purpose of our study was to assess the association between the two nuclear gene variants, R577X (rs1815739) in ACTN3 and I/D (rs4340) in ACE, with elite athletes’ performance and the effect of training on the mitochondrial DNA (mtDNA) content in peripheral blood. We evaluated the genotypes and frequencies of ACTN3 R577X and ACE I/D polymorphisms between soccer players (n = 43) and healthy non-athletic controls (n = 128)...
January 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28335887/trastuzumab-in-combination-with-weekly-paclitaxel-and-carboplatin-as-neo-adjuvant-treatment-for-her2-positive-breast-cancer-the-train-study
#5
Mette S van Ramshorst, Erik van Werkhoven, Ingrid A M Mandjes, Margaret Schot, Jelle Wesseling, Marie-Jeanne T F D Vrancken Peeters, Jetske M Meerum Terwogt, Monique E M Bos, Hendrika M Oosterkamp, Sjoerd Rodenhuis, Sabine C Linn, Gabe S Sonke
AIM: To determine the efficacy and safety of an anthracycline-free neo-adjuvant regimen consisting of weekly paclitaxel, carboplatin and trastuzumab in HER2-positive breast cancer. PATIENTS AND METHODS: Patients with stage II or III HER2-positive breast cancer received weekly paclitaxel ([P], 70 mg/m(2)), trastuzumab ([T], 2 mg/kg, loading dose 4 mg/kg) and carboplatin ([C], AUC = 3 mg ml(-1) min) for 24 weeks. In weeks 7, 8, 15, 16, 23 and 24, trastuzumab was administered without chemotherapy...
March 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/28334016/does-shoe-heel-design-influence-ground-reaction-forces-and-knee-moments-during-maximum-lunges-in-elite-and-intermediate-badminton-players
#6
Wing-Kai Lam, Jaejin Ryue, Ki-Kwang Lee, Sang-Kyoon Park, Jason Tak-Man Cheung, Jiseon Ryu
BACKGROUND: Lunge is one frequently executed movement in badminton and involves a unique sagittal footstrike angle of more than 40 degrees at initial ground contact compared with other manoeuvres. This study examined if the shoe heel curvature design of a badminton shoe would influence shoe-ground kinematics, ground reaction forces, and knee moments during lunge. METHODS: Eleven elite and fifteen intermediate players performed five left-forward maximum lunge trials with Rounded Heel Shoe (RHS), Flattened Heel Shoe (FHS), and Standard Heel Shoes (SHS)...
2017: PloS One
https://www.readbyqxmd.com/read/28332171/sport-and-male-sexuality
#7
REVIEW
P Sgrò, L Di Luigi
The relationships between sport and sexuality in males are of great social and clinical interest, because of sports and motor activities that highly promote social and sexual relationships. Even if few literature exist, two main questions should be taken into account: whether and how physical exercise and sport positively or negatively influence sexual health and behavior and/or whether and how sexual behavior may affect a sub-sequent sport performance. Physical exercise and sport per se can influence, positively or negatively, the hypothalamic-pituitary-testicular axis function and, consequently, the individual's reproductive and/or sexual health...
March 22, 2017: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/28332121/impairment-in-emotion-perception-from-body-movements-in-individuals-with-bipolar-i-and-bipolar-ii-disorder-is-associated-with-functional-capacity
#8
Anja Vaskinn, Trine Vik Lagerberg, Thomas D Bjella, Carmen Simonsen, Ole A Andreassen, Torill Ueland, Kjetil Sundet
BACKGROUND: Individuals with bipolar disorder present with moderate impairments in social cognition during the euthymic state. The impairment extends to theory of mind and to the perception of emotion in faces and voices, but it is unclear if emotion perception from body movements is affected. The main aim of this study was to examine if participants with bipolar disorder perform worse than healthy control participants on a task using point-light displays of human full figures moving in a manner indicative of a basic emotion (angry, happy, sad, fearful, neutral/no emotion)...
December 2017: International Journal of Bipolar Disorders
https://www.readbyqxmd.com/read/28330449/a-cross-sectional-study-of-the-effects-of-load-carriage-on-running-characteristics-and-tibial-mechanical-stress-implications-for-stress-fracture-injuries-in-women
#9
Chun Xu, Amy Silder, Ju Zhang, Jaques Reifman, Ginu Unnikrishnan
BACKGROUND: Load carriage is associated with musculoskeletal injuries, such as stress fractures, during military basic combat training. By investigating the influence of load carriage during exercises on the kinematics and kinetics of the body and on the biomechanical responses of bones, such as the tibia, we can quantify the role of load carriage on bone health. METHODS: We conducted a cross-sectional study using an integrated musculoskeletal-finite-element model to analyze how the amount of load carriage in women affected the kinematics and kinetics of the body, as well as the tibial mechanical stress during running...
March 23, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28329753/benefits-of-high-intensity-exercise-training-to-patients-with-chronic-obstructive-pulmonary-disease-a-controlled-study
#10
Tobias Boeselt, Christoph Nell, Lea Lütteken, Katharina Kehr, Janine Koepke, Sandra Apelt, Martina Veith, Björn Beutel, Marc Spielmanns, Timm Greulich, Claus F Vogelmeier, Klaus Kenn, Sabina Janciauskiene, Peter Alter, A Rembert Koczulla
BACKGROUND: Various exercise training programs are used for patients with chronic obstructive pulmonary disease (COPD) of different severity. OBJECTIVES: To investigate the impact of individualized high-intensity training on exercise capacity with COPD. METHODS: A total of 49 patients agreed to participate. Of these, 31 were assigned to the training group and 18 served as controls. The training group exercised twice a week for 90 min with consecutively increasing loads...
March 23, 2017: Respiration; International Review of Thoracic Diseases
https://www.readbyqxmd.com/read/28329240/effect-of-breathing-oxygen-enriched-air-on-exercise-performance-in-patients-with-precapillary-pulmonary-hypertension-randomized-sham-controlled-cross-over-trial
#11
Silvia Ulrich, Elisabeth D Hasler, Stéphanie Saxer, Michael Furian, Séverine Müller-Mottet, Stephan Keusch, Konrad E Bloch
Aims: The purpose of the current trial was to test the hypothesis that breathing oxygen-enriched air increases exercise performance of patients with pulmonary arterial or chronic thrombo-embolic pulmonary hypertension (PAH/CTEPH) and to investigate involved mechanisms. Methods and results: Twenty-two patients with PAH/CTEPH, eight women, means ± SD 61 ± 14 years, resting mPAP 35 ± 9mmHg, PaO2 ambient air >7.3 kPa, underwent four bicycle ergospirometries to exhaustion on different days, while breathing oxygen-enriched (FiO2 0...
March 11, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28328719/predicting-the-maximum-dynamic-strength-in-bench-press-the-high-precision-of-the-bar-velocity-approach
#12
Irineu Loturco, Ronaldo Kobal, José E Moraes, Katia Kitamura, César C Cal Abad, Lucas A Pereira, Fábio Y Nakamura
Loturco, I, Kobal, R, Moraes, JE, Kitamura, K, Cal Abad, CC, Pereira, LA, and Nakamura, FY. Predicting the maximum dynamic strength in bench press: the high precision of the bar velocity approach. J Strength Cond Res 31(4): 1127-1131, 2017-The aim of this study was to determine the force-velocity relationship and test the possibility of determining the 1 repetition maximum (1RM) in "free weight" and Smith machine bench presses. Thirty-six male top-level athletes from 3 different sports were submitted to a standardized 1RM bench press assessment (free weight or Smith machine, in randomized order), following standard procedures encompassing lifts performed at 40-100% of 1RM...
April 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28328718/validity-of-daily-and-weekly-self-reported-training-load-measures-in-adolescent-athletes
#13
Padraic J Phibbs, Gregory Roe, Ben Jones, Dale B Read, Jonathon Weakley, Joshua Darrall-Jones, Kevin Till
Phibbs, PJ, Roe, G, Jones, B, Read, DB, Weakley, J, Darrall-Jones, J, and Till, K. Validity of daily and weekly self-reported training load measures in adolescent athletes. J Strength Cond Res 31(4): 1121-1126, 2017-The primary aim of the study was to assess the level of agreement between the criterion session rating of perceived exertion (sRPE30min) and a practical measure of a self-reported Web-based training load questionnaire 24 hours after training (sRPE24h) in adolescent athletes. The secondary aim was to assess the agreement between weekly summated sRPE24h values (∑sRPE24h) and a weekly Web-based training diary (sRPEweekly) for all field-based training accumulated on a subsequent training week...
April 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28325123/effect-of-stimulation-of-cold-receptors-with-menthol-on-emg-activity-of-quadriceps-muscle-during-low-load-contraction
#14
Tadayuki Tokunaga, Hitoshi Sugawara, Chigaya Tadano, Masuo Muro
PURPOSE: Facilitatory and inhibitory responses of spinal motor neurons are influenced by somatosensory input from the skin. The purpose of this study, employing electromyography, was to examine the neuromuscular changes that occur with menthol applied to the skin over the quadriceps muscle. METHODS: Forty-two healthy volunteers performed isometric knee extensions at 35% maximum voluntary contraction (MVC) in three groups (Adult Placebo, Adult Menthol, Older Adult Menthol)...
March 21, 2017: Somatosensory & Motor Research
https://www.readbyqxmd.com/read/28325109/feasibility-and-effects-of-a-combined-adjuvant-high-intensity-interval-strength-training-in-breast-cancer-patients-a-single-center-pilot-study
#15
Sebastian Viktor Waldemar Schulz, Roman Laszlo, Stephanie Otto, Dmytro Prokopchuk, Uwe Schumann, Florian Ebner, Jens Huober, Jürgen Michael Steinacker
PURPOSE: To evaluate feasibility of an exercise intervention consisting of high-intensity interval endurance and strength training in breast cancer patients. METHODS: Twenty-six women with nonmetastatic breast cancer were consecutively assigned to the exercise intervention- (n= 15, mean age 51.9 ± 9.8 years) and the control group (n = 11, mean age 56.9 ± 7.0 years). Cardiopulmonary exercise testing that included lactate sampling, one-repetition maximum tests and a HADS-D questionnaire were used to monitor patients both before and after a supervised six weeks period of either combined high-intensity interval endurance and strength training (intervention group, twice a week) or leisure training (control group)...
March 21, 2017: Disability and Rehabilitation
https://www.readbyqxmd.com/read/28324752/vertical-ground-reaction-force-during-standing-and-walking-are-they-related-to-bone-mineral-density-left-right-asymmetries
#16
Marina Brozgol, Mira Arbiv, Anat Mirelman, Talia Herman, Jeffrey M Hausdorff, Nachum Vaisman
Osteoporosis is a systemic skeletal disease that is characterized by reduced bone mass, deterioration of bone tissue and skeletal fragility. The purpose of the current study was to determine whether asymmetrical femur bone mineral density (BMD) is associated with asymmetrical gait and standing. We compared measures of gait and standing asymmetry in subjects with (n=38) and without (n=11) significant left-right differences in BMD. Participants walked for 72m at their comfortable speed and stood quietly for 60s while outfitted with pressure-sensitive insoles...
March 7, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28323583/pilots-attention-distributions-between-chasing-a-moving-target-and-a-stationary-target
#17
Wen-Chin Li, Chung-San Yu, Graham Braithwaite, Matthew Greaves
INTRODUCTION: Attention plays a central role in cognitive processing; ineffective attention may induce accidents in flight operations. The objective of the current research was to examine military pilots' attention distributions between chasing a moving target and a stationary target. METHOD: In the current research, 37 mission-ready F-16 pilots participated. Subjects' eye movements were collected by a portable head-mounted eye-tracker during tactical training in a flight simulator...
December 1, 2016: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28322024/au-nanoclusters-and-photosensitizer-dual-loaded-spatiotemporal-controllable-liposomal-nanocomposites-enhance-tumor-photodynamic-therapy-effect-by-inhibiting-thioredoxin-reductase
#18
Fuping Gao, Weiping Zheng, Liang Gao, Pengju Cai, Ru Liu, Yaling Wang, Qing Yuan, Yuliang Zhao, Xueyun Gao
Photodynamic therapy (PDT) is a minimally invasive therapeutic procedure of tumors with high selectivity and low side effect. However, it is usually not efficient in long-lasting tumor control. One of the main reasons is tumor cells develop some protective mechanisms that help them to deal with oxidative stress in the environment. The thioredoxin system in cancer is an important antioxidant defense system. Au nanoclusters could effectively inhibit thioredoxin reductase (TrxR) in tumor cell cytoplasm. Herein, Au nanoclusters and photosensitizer Chlorine 6 (Ce6) are co-loaded in spatiotemporal controllable liposomal nanocomposites...
March 21, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28321881/acute-fatigue-and-perceptual-responses-to-resistance-exercise
#19
James Peter Fisher, Joshua Farrow, James Steele
INTRODUCTION: Despite assumptions, there is an absence of research on acute fatigue responses to high- and low-load and advanced technique resistance exercise. METHODS: Trained males (n=8; 27.2 ±7.4years; 180.0 ± 6.6cm; 86.6 ±10.3kg) were assessed for decrement in maximal voluntary isometric torque (MViT) and perceived effort and discomfort following heavier load (HL; 80% MViT), lighter load (LL; 30% MViT), forced repetitions (FR) and breakdown set (BD) training protocols...
March 21, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28321637/the-time-course-of-short-term-hypertrophy-in-the-absence-of-eccentric-muscle-damage
#20
Matt S Stock, Jacob A Mota, Ryan N DeFranco, Katherine A Grue, A Unique Jacobo, Eunhee Chung, Jordan R Moon, Jason M DeFreitas, Travis W Beck
BACKGROUND: It has been proposed that the increase in skeletal muscle mass observed during the initial weeks of initiating a resistance training program is concomitant with eccentric muscle damage and edema. PURPOSE: We examined the time course of muscle hypertrophy during 4 weeks of concentric-only resistance training. METHODS: Thirteen untrained men performed unilateral concentric-only dumbbell curls and shoulder presses twice per week for 4 weeks...
March 20, 2017: European Journal of Applied Physiology
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