keyword
https://read.qxmd.com/read/36989529/effect-of-different-load-intensity-transition-schemes-on-muscular-strength-and-physical-performance-in-postmenopausal-women
#21
JOURNAL ARTICLE
Marcelo A S Carneiro, Witalo Kassiano, Gersiel Oliveira-Júnior, Jairo F R Sousa, Edilson S Cyrino, Fábio L Orsatti
PURPOSE: In postmenopausal women, optimizing muscular strength and physical performance through proper resistance training (RT) is crucial in achieving optimal functional reserve later in life. This study aimed to compare if a higher-load-to-lower-load (HL-to-LL) scheme is more effective than a lower-load-to-higher-load (LL-to-HL) scheme on muscular strength and physical performance in postmenopausal women after 12 and 24 weeks of RT. METHODS: Twenty-four postmenopausal women were randomized into two groups: LL-to-HL (n = 12, 27-31 repetitions maximum (RM) in the first 12 weeks, and 8-12RM in the last 12 weeks) or HL-to-LL (n = 12, 8-12RM during the first 12 weeks, and 27-31 RM in the last 12 weeks)...
March 29, 2023: Medicine and Science in Sports and Exercise
https://read.qxmd.com/read/36901413/prevalence-of-polymorphism-and-post-training-expression-of-actn3-r-x-and-ace-i-d-genes-in-crossfit-athletes
#22
JOURNAL ARTICLE
Omar Peña-Vázquez, Liliana Aracely Enriquez-Del Castillo, Susana Aideé González-Chávez, Jaime Güereca-Arvizuo, Ramon Candia Lujan, Claudia Esther Carrasco Legleu, Natanael Cervantes Hernández, César Pacheco-Tena
BACKGROUND: CrossFit is known as a functional fitness training high-intensity exercise to improve physical performance. The most studied polymorphisms are the ACTN3 R577X gene, known for speed, power, and strength, and ACE I/D, related to endurance and strength. The present investigation analyzed the effects of training on ACTN3 and ACE gene expression in CrossFit athletes for 12 weeks. METHODS: the studies included 18 athletes from the Rx category, where ACTN3 (RR, RX, XX) and ACE (II, ID, DD) characterization of genotypes and tests of maximum strength (NSCA), power (T-Force), and aerobic endurance (Course Navette) were performed...
March 1, 2023: International Journal of Environmental Research and Public Health
https://read.qxmd.com/read/36816767/does-incorporating-high-intensity-interval-training-in-physical-education-classes-improve-fitness-outcomes-of-students-a-cluster-randomized-controlled-trial
#23
JOURNAL ARTICLE
Petra Jurić, Dean A Dudley, Peter Petocz
The aim of this study was to determine the efficacy of a high intensity interval training (HIIT) intervention lasting 12 weeks on fitness (cardiorespiratory fitness, muscular strength, muscular endurance, power, speed, flexibility, and balance) and adiposity of 10- to 15-year-old students implemented during their physical education (PE). The focus of this study was to compare two approaches to increasing fitness level among school-aged children, one approach focusing on regular PE sessions in accordance with the curriculum and another one on regular PE classes augmented by HIIT...
April 2023: Preventive Medicine Reports
https://read.qxmd.com/read/36790965/adaptive-optics-leo-uplink-pre-compensation-with-finite-spatial-modes
#24
JOURNAL ARTICLE
Shane Walsh, Sascha Schediwy
Adaptive optics pre-compensation of free-space optical communications uplink from ground to space is complicated by the "point ahead angle" due to spacecraft velocity and the finite speed of light, as well as anisoplanatism of the uplink beam and the wavefront beacon. This Letter explores how pre-compensation varies with the number of spatial modes applied and how it varies with a beacon at the point-ahead angle versus a downlink beacon. Using a w0  = 16 cm Gaussian beam propagating through a modified Hufnagel-Valley model as an example, we find pre-compensation performance plateaus beyond ∼100 applied modes regardless of integrated turbulence strength, and that a point ahead beacon provides a 1-4 dB gain in median received power and an order-of-magnitude reduction in scintillation over a downlink beacon at wavelengths typical of optical communications...
February 15, 2023: Optics Letters
https://read.qxmd.com/read/36723062/the-efficacy-of-a-multimodal-recovery-strategy-implemented-after-a-high-intensity-rugby-league-training-session
#25
JOURNAL ARTICLE
Hendrickus G J Aben, Samuel P Hills, Darren Higgins, Carlton B Cooke, Danielle Davis, Ben Jones, Mark Russell
Aben, HGJ, Hills, SP, Higgins, D, Cooke, CB, Davis, D, Jones, B, and Russell, M. The efficacy of a multimodal recovery strategy implemented after a high-intensity rugby league training session. J Strength Cond Res XX(X): 000-000, 2022-The efficacy of a multimodal recovery strategy implemented within 4 hours of rugby league (RL) training was investigated using repeated-measures, randomized, crossover methods in 10 professional academy RL players (age: 17 ± 1 years). Following standardized training (5,383 m covered, 350-m high-speed running, 28 repeated high-intensity efforts, 24 collisions), players completed a multimodal recovery (REC) strategy (i...
February 1, 2023: Journal of Strength and Conditioning Research
https://read.qxmd.com/read/36662035/effect-of-high-intensity-vs-moderate-intensity-resistance-training-on-strength-power-and-muscle-soreness-in-male-academy-soccer-players
#26
JOURNAL ARTICLE
Stephen J McQuilliam, David R Clark, Robert M Erskine, Thomas E Brownlee
McQuilliam, SJ, Clark, DR, Erskine, RM, and Brownlee, TE. The effect of high vs. moderate-intensity resistance training on strength, power and muscle soreness in male academy soccer players. J Strength Cond Res XX(X): 000-000, 2022-The aims of this study were to investigate the impact of high-intensity, low-volume (HRT) vs. moderate-intensity, and high-volume resistance training (MRT) vs. soccer training only (control group [CON]) on changes in strength, power, and speed and to compare delayed onset muscle soreness (DOMS) between groups in male academy soccer players (ASP)...
January 18, 2023: Journal of Strength and Conditioning Research
https://read.qxmd.com/read/36560210/extended-energy-expenditure-model-in-soccer-evaluating-player-performance-in-the-context-of-the-game
#27
JOURNAL ARTICLE
Arian Skoki, Alessio Rossi, Paolo Cintia, Luca Pappalardo, Ivan Štajduhar
Every soccer game influences each player's performance differently. Many studies have tried to explain the influence of different parameters on the game; however, none went deeper into the core and examined it minute-by-minute. The goal of this study is to use data derived from GPS wearable devices to present a new framework for performance analysis. A player's energy expenditure is analyzed using data analytics and K-means clustering of low-, middle-, and high-intensity periods distributed in 1 min segments...
December 14, 2022: Sensors
https://read.qxmd.com/read/36340251/impact-of-frailty-on-postoperative-dysphagia-in-patients-undergoing-elective-cardiovascular-surgery
#28
JOURNAL ARTICLE
Masato Ogawa, Seimi Satomi-Kobayashi, Naofumi Yoshida, Kodai Komaki, Kazuhiro P Izawa, Mari Hamaguchi, Takeshi Inoue, Yoshitada Sakai, Ken-Ichi Hirata, Kenji Okada
Background: Postextubation dysphagia (PED) is a serious postoperative complication following cardiovascular surgery that can lead to a worse prognosis. On the other hand, frailty is a prognostic factor in patients who undergo cardiac surgery. Objectives: This study investigated the effect of frailty status on PED and impact of PED on postoperative complications. Methods: This single-center retrospective cohort study included 644 consecutive patients who underwent elective cardiovascular surgery between May 1, 2014, and December 31, 2020; they were assigned to the PED or non-PED group based on postoperative swallowing status, and postoperative complications were investigated...
February 2022: JACC Asia
https://read.qxmd.com/read/36314560/the-effects-of-power-exercises-on-body-structure-and-function-activity-and-participation-in-children-with-cerebral-palsy-an-icf-based-systematic-review
#29
JOURNAL ARTICLE
Ozgun Kaya Kara, Ceren Gursen, Sebahat Yaprak Cetin, Elif Nur Tascioglu, Seda Muftuoglu, Diane L Damiano
PURPOSE: To systematically review the literature for evidence of effectiveness of power exercises on physical, physiological, and functional outcomes in children and adolescents with cerebral palsy (CP). MATERIALS AND METHODS: Methodological quality and evidence synthesis were assessed with using the Cochrane Risk of Bias (RoB) Tools and Modified Bakker Scale. Using the International Classification of Functioning (ICF), outcome measures for muscle agriculture, gait, balance, motor function, aerobic/anaerobic fitness, daily living, mobility, and school participation were categorised...
October 31, 2022: Disability and Rehabilitation
https://read.qxmd.com/read/36301685/modular-pulse-synthesizer-for-transcranial-magnetic-stimulation-with-fully-adjustable-pulse-shape-and-sequence
#30
JOURNAL ARTICLE
Z Li, J Zhang, A V Peterchev, S M Goetz
The temporal shape of a pulse in transcranial magnetic stimulation (TMS) influences which neuron populations are activated preferentially as well as the strength and even direction of neuromodulation effects. Furthermore, various pulse shapes differ in their efficiency, coil heating, sensory perception, and clicking sound. However, the available TMS pulse shape repertoire is still very limited to a few biphasic, monophasic, and polyphasic pulses with sinusoidal or near-rectangular shapes. Monophasic pulses, though found to be more selective and stronger in neuromodulation, are generated inefficiently and therefore only available in simple low-frequency repetitive protocols...
October 25, 2022: Journal of Neural Engineering
https://read.qxmd.com/read/36193438/the-effect-of-high-and-low-velocity-based-training-on-the-throwing-performance-of-collegiate-handball-players
#31
JOURNAL ARTICLE
Bassam Abuajwa, Mike Hamlin, Eliza Hafiz, Rizal Razman
Background: The intensity of strength training exercise is generally regarded to be the most essential element in developing muscle strength and power. The exercise intensity of strength training is known as one-repetition maximum (1RM). Velocity-based training (VBT) has been proposed as a different approach for determining training intensity. VBT relies on the use of linear position transducers and inertial measurement units, providing real-time feedback to objectively adjust the exercise intensity based on an athlete's velocity zone...
2022: PeerJ
https://read.qxmd.com/read/36157955/elite-rugby-players-have-unique-morphological-characteristics-of-the-hamstrings-and-quadriceps-femoris-muscles-according-to-their-playing-positions
#32
JOURNAL ARTICLE
Raki Kawama, Masamichi Okudaira, Seigo Shibata, Tatsuya Shimasaki, Hirohiko Maemura, Satoru Tanigawa
Rugby is a popular sport requiring high-intensity and maximal speed actions. Numerous studies have demonstrated that physical performance variables, such as strength, sprinting, and jumping, are different between the forwards and backs. However, there is little information about muscle morphological characteristics specific for each rugby playing position. This study aimed to clarify the morphological characteristics of the thigh muscles in forwards and backs. Ultrasound images were obtained from the proximal, middle, and distal regions of the thigh...
August 2022: Journal of Human Kinetics
https://read.qxmd.com/read/36123980/the-live-long-walk-strong-rehabilitation-program-study-design-and-methods
#33
JOURNAL ARTICLE
Rebekah Harris, Jennifer S Brach, Jennifer Moye, Elisa Ogawa, Rachel Ward, Ildiko Halasz, Jonathan Bean
Objective: To identify attributes targeted by rehabilitative treatment within which improvements lead to short- and long-term changes in mobility. Maintaining independence in mobility is important to many older adults and is associated with critical outcomes such as aging in place, morbidity, and mortality. Design: The Live Long Walk Strong rehabilitation study is a phase 2 single-blind, randomized controlled trial. Setting: Veterans Affairs Boston Healthcare System, outpatient physical therapy...
September 2022: Archives of rehabilitation research and clinical translation
https://read.qxmd.com/read/35894967/covid-19-lockdown-a-global-study-investigating-the-effect-of-athletes-sport-classification-and-sex-on-training-practices
#34
JOURNAL ARTICLE
Jad Adrian Washif, Øyvind Sandbakk, Stephen Seiler, Thomas Haugen, Abdulaziz Farooq, Ken Quarrie, Dina C Janse van Rensburg, Isabel Krug, Evert Verhagen, Del P Wong, Iñigo Mujika, Cristina Cortis, Monoem Haddad, Omid Ahmadian, Mahmood Al Jufaili, Ramzi A Al-Horani, Abdulla Saeed Al-Mohannadi, Asma Aloui, Achraf Ammar, Fitim Arifi, Abdul Rashid Aziz, Mikhail Batuev, Christopher Martyn Beaven, Ralph Beneke, Arben Bici, Pallawi Bishnoi, Lone Bogwasi, Daniel Bok, Omar Boukhris, Daniel Boullosa, Nicola Bragazzi, Joao Brito, Roxana Paola Palacios Cartagena, Anis Chaouachi, Stephen S Cheung, Hamdi Chtourou, Germina Cosma, Tadej Debevec, Matthew D DeLang, Alexandre Dellal, Gürhan Dönmez, Tarak Driss, Juan David Peña Duque, Cristiano Eirale, Mohamed Elloumi, Carl Foster, Emerson Franchini, Andrea Fusco, Olivier Galy, Paul B Gastin, Nicholas Gill, Olivier Girard, Cvita Gregov, Shona Halson, Omar Hammouda, Ivana Hanzlíková, Bahar Hassanmirzaei, Kim Hébert-Losier, Hussein Muñoz Helú, Tomás Herrera-Valenzuela, Florentina J Hettinga, Louis Holtzhausen, Olivier Hue, Antonio Dello Iacono, Johanna K Ihalainen, Carl James, Saju Joseph, Karim Kamoun, Mehdi Khaled, Karim Khalladi, Kwang Joon Kim, Lian-Yee Kok, Lewis MacMillan, Leonardo Jose Mataruna-Dos-Santos, Ryo Matsunaga, Shpresa Memishi, Grégoire P Millet, Imen Moussa-Chamari, Danladi Ibrahim Musa, Hoang Minh Thuan Nguyen, Pantelis T Nikolaidis, Adam Owen, Johnny Padulo, Jeffrey Cabayan Pagaduan, Nirmala Panagodage Perera, Jorge Pérez-Gómez, Lervasen Pillay, Arporn Popa, Avishkar Pudasaini, Alizera Rabbani, Tandiyo Rahayu, Mohamed Romdhani, Paul Salamh, Abu-Sufian Sarkar, Andy Schillinger, Heny Setyawati, Navina Shrestha, Fatona Suraya, Montassar Tabben, Khaled Trabelsi, Axel Urhausen, Maarit Valtonen, Johanna Weber, Rodney Whiteley, Adel Zrane, Yacine Zerguini, Piotr Zmijewski, Helmi Ben Saad, David B Pyne, Lee Taylor, Karim Chamari
PURPOSE: To investigate differences in athletes' knowledge, beliefs, and training practices during COVID-19 lockdowns with reference to sport classification and sex. This work extends an initial descriptive evaluation focusing on athlete classification. METHODS: Athletes (12,526; 66% male; 142 countries) completed an online survey (May-July 2020) assessing knowledge, beliefs, and practices toward training. Sports were classified as team sports (45%), endurance (20%), power/technical (10%), combat (9%), aquatic (6%), recreational (4%), racquet (3%), precision (2%), parasports (1%), and others (1%)...
July 8, 2022: International Journal of Sports Physiology and Performance
https://read.qxmd.com/read/35708888/effects-of-acute-sleep-loss-on-physical-performance-a-systematic-and-meta-analytical-review
#35
Jonathan Craven, Danielle McCartney, Ben Desbrow, Surendran Sabapathy, Phillip Bellinger, Llion Roberts, Christopher Irwin
BACKGROUND: Sleep loss may influence subsequent physical performance. Quantifying the impact of sleep loss on physical performance is critical for individuals involved in athletic pursuits. DESIGN: Systematic review and meta-analysis. SEARCH AND INCLUSION: Studies were identified via the Web of Science, Scopus, and PsycINFO online databases. Investigations measuring exercise performance under 'control' (i.e., normal sleep, > 6 h in any 24 h period) and 'intervention' (i...
November 2022: Sports Medicine
https://read.qxmd.com/read/35618610/gold-nanostrip-array-mediated-wireless-electrical-stimulation-for-accelerating-functional-neuronal-differentiation
#36
JOURNAL ARTICLE
Hongru Yang, Yue Su, Zhaoyang Sun, Baojin Ma, Feng Liu, Ying Kong, Chunhui Sun, Boyan Li, Yuanhua Sang, Shuhua Wang, Gang Li, Jichuan Qiu, Chao Liu, Zhaoxin Geng, Hong Liu
Neural stem cell (NSC)-based therapy holds great promise for the treatment of neurodegenerative diseases. Presently, however, it is hindered by poor functional neuronal differentiation. Electrical stimulation is considered one of the most effective ways to promote neuronal differentiation of NSCs. In addition to surgically implanted electrodes, traditional electrical stimulation includes wires connected to the external power supply, and an additional surgery is required to remove the electrodes or wires following stimulation, which may cause secondary injuries and infections...
August 2022: Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
https://read.qxmd.com/read/35564764/strength-training-in-swimming
#37
REVIEW
Klaus Wirth, Michael Keiner, Stefan Fuhrmann, Alfred Nimmerichter, G Gregory Haff
This narrative review deals with the topic of strength training in swimming, which has been a controversial issue for decades. It is not only about the importance for the performance at start, turn and swim speed, but also about the question of how to design a strength training program. Different approaches are discussed in the literature, with two aspects in the foreground. On the one hand is the discussion about the optimal intensity in strength training and, on the other hand, is the question of how specific strength training should be designed...
April 28, 2022: International Journal of Environmental Research and Public Health
https://read.qxmd.com/read/35436329/effect-of-high-intensity-power-training-on-cognitive-function-in-older-adults-with-type-2-diabetes-secondary-outcomes-of-the-great2do-study
#38
JOURNAL ARTICLE
Ren Ru Zhao, Yorgi Mavros, Jacinda Meiklejohn, Kylie A Anderberg, Nalin Singh, Shelley Kay, Michael K Baker, Yi Wang, Mike Climstein, Anthony O'Sullivan, Nathan De Vos, Bernhard T Baune, Steven N Blair, David Simar, Maria A Fiatarone Singh
We sought to determine the effects of 12 months of power training on cognition, and whether improvements in body composition, muscle strength and/or aerobic capacity (VO2peak) were associated with improvements in cognition in older adults with type 2 diabetes (T2D). Participants with T2D were randomized to power training or low intensity sham exercise control condition, three days per week for 12 months. Cognitive outcomes included memory, attention/speed, executive function, and global cognition. Other relevant outcomes included VO2peak, strength, and whole body and regional body composition...
April 18, 2022: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://read.qxmd.com/read/35366944/the-impact-of-a-school-backpack-s-weight-which-is-carried-on-the-back-of-a-7-year-old-students-of-both-sexes-on-the-features-of-body-posture-in-the-frontal-plane
#39
JOURNAL ARTICLE
Mirosław Mrozkowiak, Marta Stępień-Słodkowska
BACKGROUND: The lifestyle of children has a significant impact on the future health of the whole society. Therefore, health education, prevention and monitoring of health determinants is important at every stage of ontogenesis. This requires a thorough knowledge of the schoolchild's environment, perceived as a wide set of stressors, including not only genetic but also epigenetic factors. One of them is the issue of the correct and abnormal body posture at school and on the way there. The goal of the study was to show the influence of the weight of the back carried container with school supplies on body posture...
April 2, 2022: BMC Sports Science, Medicine and Rehabilitation
https://read.qxmd.com/read/35340235/biomechanical-analysis-and-training-method-research-on-head-shot-strength-of-football-players
#40
JOURNAL ARTICLE
Yipeng Yao, Shanshan Xiang
With the development of intelligent sports in China and the rapid improvement of the strength of colleges and universities, the reform of traditional football players' header shooting training methods is becoming more and more urgent in order to solve some problems in the development of sports and speed up the intelligent training of Chinese football players. Based on this, this paper studies the biomechanical analysis and training method based on the integration of header strength data of football players...
2022: Journal of Healthcare Engineering
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