Read by QxMD icon Read

Strength and conditioning training

Thiago Lasevicius, Carlos Ugrinowitsch, Brad Jon Schoenfeld, Hamilton Roschel, Lucas Duarte Tavares, Eduardo Oliveira De Souza, Gilberto Laurentino, Valmor Tricoli
The present study investigated the effects of different intensities of resistance training (RT) on elbow flexion and leg press one-repetition maximum (1RM) and muscle cross-sectional area (CSA). Thirty men volunteered to participate in an RT programme, performed twice a week for 12 weeks. The study employed a within-subject design, in which one leg and arm trained at 20% 1RM (G20) and the contralateral limb was randomly assigned to one of the three conditions: 40% (G40); 60% (G60), and 80% 1RM (G80). The G20 started RT session with three sets to failure...
March 22, 2018: European Journal of Sport Science
Rodrigo F O Pena, Sebastian Vellmer, Davide Bernardi, Antonio C Roque, Benjamin Lindner
Recurrent networks of spiking neurons can be in an asynchronous state characterized by low or absent cross-correlations and spike statistics which resemble those of cortical neurons. Although spatial correlations are negligible in this state, neurons can show pronounced temporal correlations in their spike trains that can be quantified by the autocorrelation function or the spike-train power spectrum. Depending on cellular and network parameters, correlations display diverse patterns (ranging from simple refractory-period effects and stochastic oscillations to slow fluctuations) and it is generally not well-understood how these dependencies come about...
2018: Frontiers in Computational Neuroscience
Michael R Deschenes, Shuhan Li, Matthew A Adan, Jane J Oh, Hailey C Ramsey
BACKGROUND: This project aimed to determine the adaptability of the neuromuscular system to the stimuli of exercise training, and aging. METHODS: Young adult, and aged male rats were randomly assigned to either exercise training, or sedentary control groups. Exercise training featured an 8 week program of treadmill running. At the end of the intervention period, neuromuscular function was quantified with ex vivo stimulation procedures on isolated soleus muscles...
March 14, 2018: Experimental Gerontology
Zhizhou Deng, Bharath Chandrasekaran, Suiping Wang, Patrick C M Wong
In second language acquisition studies, the high talker variability training approach has been frequently used to train participants to learn new speech patterns. However, the neuroplasticity induced by training is poorly understood. In the present study, native English speakers were trained on non-native pitch patterns (linguistic tones from Mandarin Chinese) in multi-talker (N = 16) or single-talker (N = 16) training conditions. We focused on two aspects of multi-talker training, voice processing and lexical phonology accessing, and used functional magnetic resonance imaging (fMRI) to measure brain activation and functional connectivity (FC) of two regions of interest in a tone identification task conducted before and after training, namely the anterior part of the right superior temporal gyrus (aRSTG) and the posterior left superior temporal gyrus (pLSTG)...
March 10, 2018: Neurobiology of Learning and Memory
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
Felipe Alves Brigatto, Tiago Volpi Braz, Thamires Cristina da Costa Zanini, Moisés Diego Germano, Marcelo Saldanha Aoki, Brad Jon Schoenfeld, Paulo Henrique Marchetti, Charles Ricardo Lopes
The purpose of this study was to investigate the chronic effects of training muscle groups 1 day per week vs. 2 days per week on neuromuscular performance and morphological adaptations in trained men with the number of sets per muscle group equated between conditions. Participants were randomly assigned in 2 experimental groups: 1 session·wk per muscle group (G1, n = 10), where every muscle group was trained once a week with 16 sets or 2 sessions·wk per muscle group (G2, n = 10), where every muscle group was trained twice a week with 8 sets per session...
March 6, 2018: Journal of Strength and Conditioning Research
Timothy J H Lathlean, Paul B Gastin, Stuart Newstead, Caroline F Finch
Well-developed physical qualities such as high jumping ability, running endurance, acceleration and speed can help aspiring junior elite Australian football (AF) players transition to the Australian Football League competition. In order to do so, players need to experience sufficient load in order to enhance their physical resilience without increasing their risk of negative outcomes in terms of impaired wellness or injury. The aim of this study was to investigate the differences in load for different levels of competition and training modes across one competitive season...
March 6, 2018: Journal of Strength and Conditioning Research
Roger L Hammer, Joshua T Linton, Adam M Hammer
The purpose of this investigation was to determine maximal strength and jump performance outcomes of heavy squat training on a low-amplitude (<1.0 mm peak-to-peak) vibration platform (VP). Nineteen recreationally resistance-trained college-aged men (22.3 ± 1.66 years) completed the 6-week study. Participants were randomly assigned to one of two training groups: SQT (n = 10) performed conventional back squats on the floor; SQTV (n = 9) performed back squats on the VP. Supervised training took place over 12 sessions (2 days/week) which utilized an aggressive strength development protocol (85-95 % 1-RM), which was identically followed by both groups...
March 6, 2018: Journal of Strength and Conditioning Research
Verena Vogel, Ines Kollei, Theodora Duka, Jan Snagowski, Matthias Brand, Astrid Müller, Sabine Loeber
At present, there is a considerable lack of human studies that investigated the impact of conditioned cues on instrumental responding although these processes are considered as core mechanisms contributing to the development and maintenance of addictive behaviours. No studies are available that assessed these processes with regard to Internet gaming or Internet shopping applications. We thus developed a Pavlovian-to-instrumental transfer (PIT)-Paradigm implementing appetitive stimuli related to Internet gaming and Internet shopping applications and investigated whether an outcome-specific PIT-Effect is observed...
March 6, 2018: Behavioural Brain Research
Liliana C Baptista, André Pinto Amorim, João Valente-Dos-Santos, Aristides M Machado-Rodrigues, Manuel Teixeira Veríssimo, Raul A Martins
BACKGROUND: The increasing prevalence of functionally-limited hypertensive individuals highlights the need for interventions to reduce the burden of hypertension-aging-disability and to maximize the chances of healthy aging. AIM: This study aims to compare the effects of multicomponent exercise and different pharmacological treatments on functional status and cardiovascular risk outcomes in hypertensive older adults with comorbidities. METHODS: Participants (n = 96) engage in a 3 days/week multicomponent (aerobic + resistance) exercise program and for one of the following three conditions: (1) thiazide-related diuretics (TDs; n = 33, 69...
March 6, 2018: Aging Clinical and Experimental Research
James Steele, Andrew Butler, Zoe Comerford, Jason Dyer, Nathan Lloyd, Joshua Ward, James Fisher, Paulo Gentil, Christopher Scott, Hayao Ozaki
The present study examined the effects of exercise utilising traditional resistance training (leg press) or 'cardio' exercise (recumbent cycle ergometry) modalities upon acute physiological responses. Nine healthy males underwent a within session randomised crossover design where they completed both the leg press and recumbent cycle ergometer conditions. Conditions were approximately matched for effort and duration (leg press: 4 × 12RM using a 2 s concentric and 3 s eccentric repetition duration controlled with a metronome, thus each set lasted  60 s; recumbent cycle ergometer: 4 × 60 s bouts using a resistance level permitting 80-100 rpm but culminating with being unable to sustain the minimum cadence for the final 5-10 s)...
2018: PeerJ
Marie Hutchinson, Neil Wendt, Stuart Trevor Smith
The 2011 Productivity Commission report, Caring for Older Australians, observed that as the number of older Australians rises and the demand for aged care services increases, there will be a commensurate increase in demand for a well-trained aged care workforce. One of the significant issues impacting upon the ability of the aged services sector to respond to a growing number of older adults is to attract and retain sufficient numbers of staff. A number of factors are acknowledged to contribute to a failure of the aged care sector to attract and retain workers including: poor sector reputation, poor working conditions, including high client-staff ratios, a lack of career paths and professional development opportunities and low rates of remuneration...
2018: Studies in Health Technology and Informatics
Lydia Lera, Cecilia Albala, Bárbara Leyton, Carlos Márquez, Bárbara Angel, Rodrigo Saguez, Hugo Sánchez
Aim: This study was aimed to set reference values of hand-grip strength by age and sex and validate cut points for risk of functional limitation and mortality in older Chileans. Methods: This was a pooled analysis of four studies including 6,426 people ≥60 years of nondependent community-dwelling Chileans. After exclusion criteria, the final sample included 5,250 subjects, from whom 2,193 were followed to study all-cause mortality associated with low hand-grip strength...
2018: Clinical Interventions in Aging
XiaoLing Bai, ZhongChen Luo, Ting Lou, Jin Pang, SiYuan Tang
BACKGROUND: Despite the rapid growth of Chinese nursing PhD programs, little is known about the career intentions of students in this field. OBJECTIVE: To investigate the career intentions of nursing PhD students. DESIGN: Online cross-sectional survey. PARTICIPANTS: Nursing PhD students at Chinese universities. METHODS: An online questionnaire was designed and the data were analyzed using SPSS...
March 1, 2018: Nurse Education Today
F Sammali, L Xu, C Rabotti, M Cardinale, Y Xu, J P van Dijk, M J Zwarts, Z Del Prete, M Mischi
Vibration exercise (VE) has been suggested as an effective training for improving muscle strength and coordination. However, the underlying physiological adaptation processes are not yet fully understood, limiting the development of safe and effective exercise protocols. To better understand the neuromuscular responses elicited by VE, we aimed at investigating the acute effects of superimposed vibration on the Hoffmann reflex (H-reflex), measured after fatiguing exercise. Twenty-five volunteers performed four isometric contractions of the right Flexor Carpi Radialis (FCR) with baseline load at 80% of their maximal voluntary contraction (MVC), both with no vibration and with superimposed vibration at 15, 30, and 45 Hz...
February 15, 2018: Journal of Electromyography and Kinesiology
Mikkel Bek Clausen, Thomas Bandholm, Michael Skovdal Rathleff, Karl Bang Christensen, Mette Kreutzfeldt Zebis, Thomas Graven-Nielsen, Per Hölmich, Kristian Thorborg
BACKGROUND: Subacromial impingement syndrome (SIS) is a painful, and often long lasting, shoulder condition affecting patient function and quality of life. In a recent study, we observed major strength impairments in shoulder external rotation and abduction (~30%) in a population of patients with pronounced and long-lasting SIS. However, the current rehabilitation of such strength impairments may be inadequate, with novel rehabilitation programmes including exercise therapy only improving external rotation strength by 4-13%...
March 2, 2018: Trials
Hidefumi Sasaki, Yukio Urabe, Noriaki Maeda, Toshiaki Suzuki
PURPOSE: This study aimed to validate the preliminary steps of motor image voluntary training in patients who are prone to falling as toe flexion muscle strength decreases. MATERIALS AND METHODS: We recorded the F-wave in 30 healthy subjects (20 men, 10 women; mean age, 22.5 ± 2.1 years). First, in a resting condition, the muscle was relaxed during the F-wave recording. Subsequently, the motion of the left flexor hallucis brevis muscle is photographed. F-waves were recorded immediately and at 5, 10, and 15 min after motor imagery...
March 1, 2018: Somatosensory & Motor Research
Svetlana Nikitina, Daniele Didino, Marcos Baez, Fabio Casati
BACKGROUND: Regular physical activity has a positive effect on physical health, well-being, and life satisfaction of older adults. However, engaging in regular physical activity can be challenging for the elderly population because of reduced mobility, low motivation, or lack of the proper infrastructures in their communities. OBJECTIVE: The objective of this paper was to study the feasibility of home-based online group training-under different group cohesion settings-and its effects on adherence and well-being among Russian older adults...
February 27, 2018: JMIR MHealth and UHealth
M P Faillace, A Pisera-Fuster, R Bernabeu
The rewarding properties of drugs in zebrafish can be studied using the conditioned place preference (CPP) paradigm. Most devices that have been used for CPP consist of two-half tanks with or without a central chamber. Here we evaluated the rewarding effects of nicotine and caffeine using a tank with five arms distributed radially from a central chamber that we have denoted Fish Tank Radial Maze (FTRM). Zebrafish were trained to associate nicotine or caffeine with a coloured arm. In testing sessions to assess CPP induction, between two and five different arms were available to explore...
February 23, 2018: Progress in Neuro-psychopharmacology & Biological Psychiatry
Everton C do Carmo, Eduardo O De Souza, Hamilton Roschel, Ronaldo Kobal, Henrique Ramos, Saulo Gil, Valmor Tricoli
This study compared the effects of self-selected rest interval and fixed rest interval strategies on post-activation potentiation (PAP) in countermovement jump (CMJ) performance. Twelve strength-trained male's (age: 25.4 ± 3.6 years; body mass: 78.8 ± 10.5 kg; height: 175 ± 7.0 cm; half-squat 1RM: 188.7 ± 33.4 kg) performed three experimental conditions: 1) fixed rest interval (FRI: CMJ test; 4-min rest interval; 5RM back squat; 4-min rest interval; CMJ test), 2) self-selected rest interval (SSRI: CMJ test; 4-min rest interval; 5RM back squat; SSRI; CMJ test), and 3) control (C: CMJ test; 8-min rest interval; CMJ test)...
February 22, 2018: Journal of Strength and Conditioning Research
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"