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Strength Gains

Diana Olvera, Rachel Stolzenfeld, Joan C Marini, Michelle S Caird, Kenneth M Kozloff
Osteogenesis imperfecta (OI) is a genetic disorder characterized by altered bone quality and imbalanced bone remodeling, leading to skeletal fractures which are most prominent during childhood. Treatments for OI have focused on restoring pediatric bone density and architecture to recover functional strength and consequently reduce fragility. Though antiresorptive agents like bisphosphonates (BP) are currently the most common intervention for the treatment of OI, a number of studies have shown efficacy of sclerostin antibody (SclAb) in inducing gains in bone mass and reducing fragility in OI mouse models...
March 15, 2018: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
Naoki Kikuchi, Koichi Nakazato
Aim: To investigate the effect of push-up training with a similar load of to 40% of 1- repetition maximumal (1RM) bench press on muscle hypertrophy and strength gain in men. Methods: Eighteen male participants (age, 20.2 ± 0.73 years, range: 19-22 years, height: 169.8 ± 4.4 cm, weight: 64.5 ± 4.7 kg) were randomly assigned to one of two experimental groups: bench press at 40%1RM (bench-press group, n = 9) or push-ups with position adjusted (e.g. kneeling) to the same load of bench-press 40%1RM (push-up group, n = 9), performed twice per week for 8 weeks...
June 2017: Journal of Exercise Science and Fitness
Robin A Wilson, William Deasy, Christos G Stathis, Alan Hayes, Matthew B Cooke
Intermittent fasting (IF) and high intensity interval training (HIIT) are effective lifestyle interventions for improving body composition and overall health. However, the long-term effects of IF and potential synergistic effects of combining IF with exercise are unclear. The purpose of the study was to investigate the long-term effects of IF, with or without HIIT, on body composition and markers of metabolic health in diet-induced obese mice. In a randosmised, controlled design, 8-week-old C57BL/6 mice (males ( n = 39) and females ( n = 49)) were fed a high fat (HF) and sugar (S) water diet (30% ( w / v )) for 24-weeks but were separated into five groups at 12-weeks: (1) 'obese' baseline control (OBC); (2) no intervention (CON); (3) intermittent fasting (IF); (4) high intensity intermittent exercise (HIIT) and (5) combination of dietary and exercise intervention (IF + HIIT)...
March 12, 2018: Nutrients
Mathias T Vangsoe, Malte S Joergensen, Lars-Henrik L Heckmann, Mette Hansen
During prolonged resistance training, protein supplementation is known to promote morphological changes; however, no previous training studies have tested the effect of insect protein isolate in a human trial. The aim of this study was to investigate the potential effect of insect protein as a dietary supplement to increase muscle hypertrophy and strength gains during prolonged resistance training in young men. Eighteen healthy young men performed resistance training four day/week for eight weeks. Subjects were block randomized into two groups consuming either an insect protein isolate or isocaloric carbohydrate supplementation within 1 h after training and pre-sleep on training days...
March 10, 2018: Nutrients
David J Cottrell, Alex Wright-Hughes, Michelle Collinson, Paula Boston, Ivan Eisler, Sarah Fortune, Elizabeth H Graham, Jonathan Green, Allan O House, Michael Kerfoot, David W Owens, Eirini-Christina Saloniki, Mima Simic, Sandy Tubeuf, Amanda J Farrin
BACKGROUND: Self-harm in adolescents is common and repetition rates high. There is limited evidence of the effectiveness of interventions to reduce self-harm. OBJECTIVES: To assess the clinical effectiveness and cost-effectiveness of family therapy (FT) compared with treatment as usual (TAU). DESIGN: A pragmatic, multicentre, individually randomised controlled trial of FT compared with TAU. Participants and therapists were aware of treatment allocation; researchers were blind to allocation...
March 2018: Health Technology Assessment: HTA
Marco A Minetto, Alberto Botter, Giulia Gamerro, Ilaria Varvello, Giuseppe Massazza, Rosa G Bellomo, Nicola A Maffiuletti, Raoul Saggini
BACKGROUND: The "contralateral effect" phenomenon refers to the strength gain in the opposite, untrained homonymous muscle following unilateral training. Previous studies showed that neuromuscular electrical stimulation (NMES) of the right quadriceps facilitated maximal voluntary strength and efferent neural drive of the left knee extensors, while no previous study investigated the contralateral effect elicited by focal muscle vibration. AIM: To investigate whether quadriceps NMES and focal vibration, when applied unilaterally, have the same potential to enhance the contralateral muscle strength and the associated neural drive...
March 12, 2018: European Journal of Physical and Rehabilitation Medicine
Samuel T Orange, Phil Marshall, Leigh A Madden, Rebecca V Vince
This study compared the effects of a 4-week supervised (SUP) and unsupervised (UNSUP) resistance training programme followed by 12 weeks of detraining (DET). Thirty-six healthy aging adults (age: 53.6 ± 3.6 years; body mass index: 28.3 ± 5.1 kg/m) were randomly allocated to a SUP group (n = 17) or an UNSUP group (n = 19). Participants completed three training sessions per week using resistance bands and body weight movements. Measures of physical performance were administered at baseline, at the end of the training programme, and after the DET period...
March 6, 2018: Journal of Strength and Conditioning Research
Sayan Dutta, Bholanath Maity, D Thirumalai, Debasis Koley
Detailed investigations of the electronic structure and bonding scenario in different carbene-phosphinidenes have been presented using state-of-the-art computational methods (BP86/def2-TZVPP//BP86/def2-SVP). We have endeavored to find the correlation of the calculated31 P chemical shifts with different bonding parameters of compounds to access the relative π-acceptor strengths of the carbenes.31 P chemical shifts exhibit a weak correlation with σ-polarizations of Ccarb -P bonds toward phosphorus; however excellent correlations are obtained in the case of π-polarizations of Ccarb -P bonds toward the carbene carbon (Ccarb ) and NPA charges on phosphorus atoms...
March 12, 2018: Inorganic Chemistry
Renee Zahnow, Jim McVeigh, Geoff Bates, Vivian Hope, Joseph Kean, John Campbell, Josie Smith
BACKGROUND: Despite recognition that the Anabolic Androgenic Steroid (AAS) using population is diverse, empirical studies to develop theories to conceptualise this variance in use have been limited. METHODS: In this study, using cluster analysis and multinomial logistic regression, we identify typologies of people who use AAS and examine variations in motivations for AAS use across types in a sample of 611 men who use AAS. RESULTS: The cluster analysis identified four groups in the data with different risk profiles...
March 8, 2018: International Journal on Drug Policy
Kuppan Gokulan, Sangeeta Khare, Carl E Cerniglia, Steven L Foley, Kottayil I Varughese
The final step of peptidoglycan (PG) synthesis in all bacteria is the formation of cross-linkage between PG-stems. The cross-linking between amino acids in different PG chains gives the peptidoglycan cell wall a 3-dimensional structure and adds strength and rigidity to it. There are two distinct types of cross-linkages in bacterial cell walls. D,D-transpeptidase (D,D-TPs) generate the classical 4➔3 cross-linkages and the L,D-transpeptidase (L,D-TPs) generate the 3➔3 non-classical peptide cross-linkages...
March 9, 2018: AAPS Journal
Henry J Alitto, Daniel L Rathbun, Tucker G Fisher, Prescott C Alexander, W Martin Usrey
Visual information processed in the retina is transmitted to primary visual cortex via relay cells in the lateral geniculate nucleus (LGN) of the dorsal thalamus. Although retinal ganglion cells are the primary source of driving input to LGN neurons, not all retinal spikes are transmitted to the cortex. Here, we investigate the relationship between stimulus contrast and retinogeniculate communication and test the hypothesis that both the time course and strength of retinogeniculate interactions are dynamic and dependent on stimulus contrast...
March 8, 2018: European Journal of Neuroscience
Rhian Collings, Briony Hill, Helen Skouteris
Background During the first postpartum year 20% of women retain excessive weight from pregnancy (postpartum weight retention; PPWR), which predicts long-term overweight/obesity. Objective The aim of this study was to explore the associations between psychological factors (depression, anxiety and stress symptoms and body attitudes) in late gestation and at 12-months postpartum with PPWR one-year post-birth. Methods Pregnant women (N = 176) completed questionnaires in early-mid pregnancy (Time 1; mean (SD) = 16...
February 8, 2018: Journal of Reproductive and Infant Psychology
Michael Leung, Timo Rantalainen, Wei-Peng Teo, Dawson Kidgell
This study aimed to identify the ipsilateral corticospinal responses of the contralateral limb following different types of unilateral motor-training. Three groups performing unilateral slow-paced strength training (SPST), non-paced strength training (NPST) or visuomotor skill training (VT) were compared to a control group. It was hypothesised that 4 weeks of unilateral SPST and VT, but not NPST, would increase ipsilateral corticospinal excitability (CSE) and reduce short-interval cortical inhibition (SICI), resulting in greater performance gains of the untrained limb...
March 6, 2018: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
C S Florio
A computational model was used to compare the local bone strengthening effectiveness of various isometric exercises that may reduce the likelihood of distal tibial stress fractures. The developed model predicts local endosteal and periosteal cortical accretion and resorption based on relative local and global measures of the tibial stress state and its surface variation. Using a multisegment three-dimensional leg model, tibia shape adaptations due to thirty-three combinations of hip, knee, and ankle joint angles and the direction of a single or sequential series of generated isometric resultant forces were predicted...
March 5, 2018: International Journal for Numerical Methods in Biomedical Engineering
Y Fu, G Yu, E McNichol, K Marczewski, S J Closs
BACKGROUND: Self-management is recommended for patients with chronic back pain. Health professionals' support for self-management can be more effective when working in partnership with patients. The aim of this study was to investigate the associations between patient-professional partnerships and the self-management of chronic back pain. METHODS: An explanatory sequential mixed methods study was undertaken. Adults with chronic back pain referred to pain management clinics participated at baseline and three-month follow-up...
March 5, 2018: European Journal of Pain: EJP
Nisha M Badders, Ane Korff, Helen C Miranda, Pradeep K Vuppala, Rebecca B Smith, Brett J Winborn, Emmanuelle R Quemin, Bryce L Sopher, Jennifer Dearman, James Messing, Nam Chul Kim, Jennifer Moore, Brian D Freibaum, Anderson P Kanagaraj, Baochang Fan, Heather Tillman, Ping-Chung Chen, Yingzhe Wang, Burgess B Freeman, Yimei Li, Hong Joo Kim, Albert R La Spada, J Paul Taylor
Spinal bulbar muscular atrophy (SBMA) is a motor neuron disease caused by toxic gain of function of the androgen receptor (AR). Previously, we found that co-regulator binding through the activation function-2 (AF2) domain of AR is essential for pathogenesis, suggesting that AF2 may be a potential drug target for selective modulation of toxic AR activity. We screened previously identified AF2 modulators for their ability to rescue toxicity in a Drosophila model of SBMA. We identified two compounds, tolfenamic acid (TA) and 1-[2-(4-methylphenoxy)ethyl]-2-[(2-phenoxyethyl)sulfanyl]-1H-benzimidazole (MEPB), as top candidates for rescuing lethality, locomotor function and neuromuscular junction defects in SBMA flies...
March 5, 2018: Nature Medicine
Christian Sögaard, Johan Funehag, Zareen Abbas
At present there is a pressing need to find an environmentally friendly grouting material for the construction of tunnels. Silica nanoparticles hold great potential of replacing the organic molecule based grouting materials currently used for this purpose. Chemically, silica nanoparticles are similar to natural silicates which are essential components of rocks and soil. Moreover, suspensions of silica nanoparticles of different sizes and desired reactivity are commercially available. However, the use of silica nanoparticles as grouting material is at an early stage of its technological development...
2018: Nano Convergence
Chiaki Ura, Tsuyoshi Okamura, Sachiko Yamazaki, Taichi Ishiguro, Masumi Ibe, Mayako Miyazaki, Keisuke Torishima, Yu Kawamuro
AIM: The aim of this study was to assess the feasibility of rice-farming care among elderly people with cognitive impairment as a tool for social inclusion. METHODS: Eight elderly individuals with cognitive impairment (7 men, 1 woman, mean age 68.3 years old) participated in the program over 25 weeks. The cognitive function, well-being, and depression were assessed before and after the program period. The degree of participants' independence during the program was also assessed...
2018: Nihon Ronen Igakkai Zasshi. Japanese Journal of Geriatrics
Shawn M Varney, Patrick C Ng, Crystal A Perez, Allyson A Araña, Edwin R Austin, Rosemarie G Ramos, Vikhyat S Bebarta
BACKGROUND: Dietary supplement use (protein/amino acids, weight-loss supplements, performance enhancers) is common among U.S. military members. Reported dietary supplement use in deployed troops is limited and is of concern in settings where troops are exposed to high ambient temperatures, increased physical demands, and dehydration. Our objective was to describe dietary supplement use and adverse events (AEs) among deployed U.S. service members compared with their pre-deployment use...
October 26, 2017: Military Medical Research
Tamaya Van Criekinge, Steven Truijen, Chelsea Verbruggen, Lotte Van de Venis, Wim Saeys
OBJECTIVE: A systematic review to examine the effect of static or dynamic trunk training compared to standard care or control therapy on muscle activity and muscle thickness of the trunk and lower limb muscles in stroke survivors. MATERIALS AND METHODS: This review was registered on PROSPERO (no: CRD42017063771) and was written according to the PRISMA guidelines. The search strategy included studies from the first indexed article until September 2017 and was performed in the electronical databases PubMed, Web of Science, Cochrane Library, Ovid Medline and PEDro...
March 5, 2018: Disability and Rehabilitation
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