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https://www.readbyqxmd.com/read/30543274/effects-of-core-stability-training-on-throwing-velocity-and-core-strength-in-female-handball-players
#1
Larissa Kuhn, Heidi Weberruß, Thomas Horstmann
This study investigated the effect of a six-week in-season core stability training (CST) intervention on maximal throwing velocity and core strength parameters. Twenty female handball players (23.4±4.4 years, 168.4±3.5 cm, and 66.9±9.2 kg) were randomized into a CST intervention group (n=10) and a control group (CON, n=10). Throwing velocity, maximal isometric strength (MIS) and endurance strength of the ventral, dorsal and lateral core muscle chains were measured before and after progressive, six-week core stability training in the CST group...
December 13, 2018: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/30526235/landing-kinematics-sports-performance-and-isokinetic-strength-in-adolescent-male-volleyball-athletes-influence-of-core-training
#2
Yi-Ju Tsai, Chieh-Chie Chia, Pei-Yun Lee, Li-Chuan Lin, Yi-Liang Kuo
CONTEXT: Core control and strength are important for reducing the risk of lower extremity injury. Current evidence on the effect of core training in male adolescent athletes is limited, and other investigations into the effects of core training often emphasized core strength only. OBJECTIVE: To examine whether core training emphasizing both control and strength of the trunk and hip would improve joint kinematics during landing, sports performance, and lower extremity muscle strength in adolescent male volleyball athletes...
December 11, 2018: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/30496711/corp-assessments-of-upper-and-lower-limb-muscle-strength-and-voluntary-activation-in-humans
#3
James Louis Nuzzo, Janet L Taylor, Simon C Gandevia
Muscle strength - the maximal force generating capacity of a muscle or group of muscles - is regularly assessed in physiological experiments and clinical trials. An understanding of the expected variation in strength and the factors that contribute to this variation is important when designing experiments, describing methodologies, interpreting results, and attempting to replicate methods of others and reproduce their findings. In this review (Cores of Reproducibility in Physiology), we report on the intra- and inter-rater reliability of tests of upper- and lower-limb muscle strength and voluntary activation in humans...
November 29, 2018: Journal of Applied Physiology
https://www.readbyqxmd.com/read/30477608/some-effects-of-supplemental-pilates-training-on-the-posture-strength-and-flexibility-of-dancers-17-to-22-years-of-age
#4
Elizabeth Lowe Ahearn, Amanda Greene, Andrea Lasner
Proper alignment in dancers is a pre-requisite for achieving aesthetic line and form and for efficient execution of movement. Pelvic alignment is a common deficit in dancers that results in faulty technique and impaired performance. Dancers must be able to obtain their personal neutral alignment to avoid injury and achieve ease of execution. This study was designed to examine the effects, qualitatively and quantitatively, of Pilates training on pelvic alignment, strength, and flexibility in dancers. Twenty female dancers, 17 to 22 years of age, participated in a screening that consisted of an AlignaBod posture screen, upper abdominal manual muscle test, double leg lower test, straight leg raise test, and modified Thomas test...
December 1, 2018: Journal of Dance Medicine & Science
https://www.readbyqxmd.com/read/30475752/efficiency-examination-of-a-6-month-trunk-prevention-program-among-recruitment-kayak-canoe-athletes-a-randomized-control-trial
#5
Gabriella Kiss, Viktória B Kovácsné, Ákos L Tóth, Sára Jeges, Alexandra Makai, Brigitta Szilágyi, Pongrác Ács, Melinda Járomi
BACKGROUND: Trunk prevention training, which provides the basis of several conditioning training programs, is used in sports at professional and amateur levels, taking the specifications of the given sport and the age-related characteristics of the athletes into consideration. OBJECTIVE: Our aim was to examine the strength and flexibility of muscles responsible for correct posture, the lumbar motor control ability and the posture of recruitment kayak-canoe athletes...
November 16, 2018: Journal of Back and Musculoskeletal Rehabilitation
https://www.readbyqxmd.com/read/30451049/measurement-properties-of-the-oarsi-core-set-of-performance-based-measures-for-hip-osteoarthritis-a-prospective-cohort-study-on-reliability-construct-validity-and-responsiveness-in-90-hip-osteo-arthritis-patients
#6
Jaap J Tolk, Rob P A Janssen, C Sanna A C Prinsen, M Marieke C van der Steen, Sita M A Bierma Zeinstra, Max Reijman
Background and purpose - Improvement of physical function is one of the main treatment goals in severe hip osteoarthritis (OA) patients. The Osteoarthritis Research Society International (OARSI) has identified a core set of performance-based tests to assess the construct physical function: 30-s chair stand test (30-s CST), 4x10-meter fast-paced walk test (40 m FPWT), and a stair-climb test. Despite this recommendation, available evidence on the measurement properties is limited. We evaluated the reliability, validity, and responsiveness of these performance-based measures in patients with hip OA scheduled for total hip arthroplasty (THA)...
November 19, 2018: Acta Orthopaedica
https://www.readbyqxmd.com/read/30317216/assessment-of-vibration-exposure-and-physiological-responses-of-crew-members-during-infantry-combat-vehicle-icv-operation-a-pilot-study
#7
Archana A Malhari, D Bhattacharyya, K Arya, T Chatterjee, M Pal
BACKGROUND: Operation of infantry combat vehicle (ICV) influences the cardiorespiratory responses as well as the risk of vibration exposure on the crew members which adversely affect their performance and health. AIM: To assess the effect of stress factors, that is, ICV's compartmental temperature, relative humidity (RH) and vehicular vibration on the physiological parameters (heart rate (HR), respiratory frequency (RF), estimated core body temperature (ECT)) of the crew members during the ICV operation...
October 12, 2018: Journal of the Royal Army Medical Corps
https://www.readbyqxmd.com/read/30314488/overuse-injuries-in-swedish-elite-athletics-a-study-protocol-for-a-prospective-multifactorial-cohort-study
#8
Andreas Lundberg Zachrisson, Pia Desai, Jon Karlsson, Elias Johanesson, Stefan Grau
BACKGROUND: Overuse injuries (OI) are common in elite athletics. Previous studies have had athletes self-report injuries rather than having a medical professional provide a clear diagnosis. This might be a major reason for the inconsistencies in reported incident proportions of OI in elite athletics, in addition to the varying definitions of OI in current literature. Risk factors or combinations of risk factors (biomechanical, clinical, and training-related) have been shown to be important in the developmental process of OI...
October 13, 2018: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/30290118/woven-kevlar-fiber-polydimethylsiloxane-reduced-graphene-oxide-composite-based-personal-thermal-management-with-freestanding-cu-ni-core-shell-nanowires
#9
Ankita Hazarika, Biplab K Deka, DoYoung Kim, Hoon Eui Jeong, Young-Bin Park, Hyung Wook Park
Thermotherapy is a widespread technique that provides relief for muscle spasms and joint injuries. A great deal of energy is used to heat the surrounding environment, and heat emitted by the human body is wasted on our surroundings. Herein, a woven Kevlar fiber (WKF)-based personal thermal management device was fabricated by directly growing vertical copper-nickel (Cu-Ni) nanowires (NWs) on the WKF surface using a hydrothermal method. The treated WKF was combined with reduced graphene oxide (rGO) dispersed in polydimethylsiloxane (PDMS) to form composites using vacuum-assisted resin transfer molding (VARTM)...
November 14, 2018: Nano Letters
https://www.readbyqxmd.com/read/30188249/collegiate-baseball-players-with-more-optimal-functional-movement-patterns-demonstrate-better-athletic-performance-in-speed-and-agility
#10
Yu-Pin Liang, Yi-Liang Kuo, Hsiang-Chin Hsu, Yen-Ysung Hsia, Ya-Wen Hsu, Yi-Ju Tsai
Sports injuries are common among baseball players and may result in abnormal movement patterns, increased risks of future injury, and unsatisfactory performance. The Functional Movement Screen (FMS™) has been developed to detect abnormal functional movement patterns and can be used for predicting risks of sports injury. However, whether FMS™ scores are associated with athletic performance remains unclear. The goal of this study was to determine the association between functional movements and athletic performance in elite baseball players...
September 6, 2018: Journal of Sports Sciences
https://www.readbyqxmd.com/read/30161087/differences-in-the-repeated-sprint-performance-between-the-first-and-latter-halves-of-trials-under-conditions-of-several-thermal-states-in-exercising-muscles
#11
Keiko Inoue, Naoyuki Yamashita, Masashi Kume, Tetsuya Yoshida
Inoue, K, Yamashita, N, Kume, M, and Yoshida, T. Differences in the repeated sprint performance between the first and latter halves of trials under conditions of several thermal states in exercising muscles. J Strength Cond Res XX(X): 000-000, 2018-The purpose of this study was to determine whether the effects of thermal states in exercising muscle on repeated sprint cycling (RSC) performance differ between the first and latter half of trials. Nine male subjects performed 8 × 8 seconds of RSC with a 40-second rest period...
August 29, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/30148431/feasibility-safety-and-efficacy-of-exercise-training-in-immune-mediated-necrotising-myopathies-a-quasi-experimental-prospective-study
#12
Jean Marcos de Souza, Diego Sales de Oliveira, Letícia Alves Perin, Rafael Giovani Misse, Alexandre Moura Dos Santos, Bruno Gualano, Ana Lúcia de Sá Pinto, Hamilton Roschel, Fernanda Rodrigues Lima, Samuel Katsuyuki Shinjo
OBJECTIVES: To evaluate the feasibility, safety and efficacy of exercise training in patients with immune-mediated necrotising myopathies (IMNM). METHODS: Eight consecutive sedentary patients with IMNM (5 anti-signal recognition particle and 3 anti-hydroxy-methyl-glutaryl coenzyme A reductase) were engaged in this study. Disease status was based on International Myositis Assessment and Clinical Studies Group (IMACS) core set measures. Physical performance was evaluated by cardiopulmonary exercise test, repetition maximum (RM) protocol, handgrip dynamometry, sit-to-stand (STS) and timed up-and-go (TUG) tests...
July 19, 2018: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/30142133/yoga-breathing-techniques-have-no-impact-on-isokinetic-and-isoinertial-power
#13
Savannah V Wooten, Nicholas Cherup, Nicolle Mazzei, Shareen Patel, Kiersten Mooney, Ali Rafiq, Joseph F Signorile
Wooten, SV, Cherup, N, Mazzei, N, Patel, S, Mooney, K, Rafiq, A, and Signorile, JF. Yoga breathing techniques have no impact on isokinetic and isoinertial power. J Strength Cond Res XX(X): 000-000, 2018-As an exercise discipline, yoga incorporates breathing (pranayama) and posture (asana) techniques to facilitate improvements in flexibility, strength, and meditation. Both techniques have been used to enhance muscular strength and power output. The purpose of this study was to determine the effects of various yoga breathing techniques on lower-limb power output...
August 23, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/30036726/fibronectin-promotes-elastin-deposition-elasticity-and-mechanical-strength-in-cellularised-collagen-based-scaffolds
#14
Daniele Pezzoli, Joseph Di Paolo, Heena Kumra, Giulia Fois, Gabriele Candiani, Dieter P Reinhardt, Diego Mantovani
One of the tightest bottlenecks in vascular tissue engineering (vTE) is the lack of strength and elasticity of engineered vascular wall models caused by limited elastic fiber deposition. In this study, flat and tubular collagen gel-based scaffolds were cellularised with vascular smooth muscle cells (SMCs) and supplemented with human plasma fibronectin (FN), a known master organizer of several extracellular matrix (ECM) fiber systems. The consequences of FN on construct maturation was investigated in terms of geometrical contraction, viscoelastic mechanical properties and deposition of core elastic fiber proteins...
October 2018: Biomaterials
https://www.readbyqxmd.com/read/30018927/determination-of-the-relationship-between-core-endurance-and-isokinetic-muscle-strength-of-elite-athletes
#15
Tuğba Kocahan, Bihter Akınoğlu
Muscle strength and core endurance are both factors contributing to athletes' performance and prevalence of injuries. There are no studies indicating the relationship between muscle strength around the shoulder and knee joints and core endurance. The aim of our study is to determine the relationship between core endurance and isokinetic muscle strength of knees and shoulders of elite athletes. Seventy-one elite athletes (weight lifting, boxing, taekwondo, biathlon, and ice skating) (age, 18.13±2.9 years) were included in the study...
June 2018: Journal of Exercise Rehabilitation
https://www.readbyqxmd.com/read/29914580/early-initiation-of-a-strength-training-based-rehabilitation-after-lumbar-spine-fusion-improves-core-muscle-strength-a-randomized-controlled-trial
#16
Dejan Kernc, Vojko Strojnik, Rok Vengust
BACKGROUND: To analyze the safety and effects of early initiation of rehabilitation including objective measurement outcomes after lumbar spine fusion based on principles of strength training. METHODS: The study recruited 27 patients, aged 45 to 70 years, who had undergone lumbar spine fusion. The method of concealed random allocation without blocking was used to form two groups. The strength training group started rehabilitation 3 weeks after surgery. Patients exercised twice weekly over 9 weeks focusing on muscle activation of lumbopelvic stabilization muscles...
June 19, 2018: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29902124/muscle-activation-in-suspension-training-a-systematic-review
#17
Joan Aguilera-Castells, Bernat Buscà, Azahara Fort-Vanmeerhaeghe, Alicia M Montalvo, Javier Peña
Suspension training is an adjunct to traditional strength and conditioning. The effect of added instability on muscle activation during traditional exercises is unclear and depends on the exercise and type of instability. The purpose of this review was to compare the activations of different muscles in suspension training exercises and their traditional counterparts. A search of the current literature was performed without language restrictions using the electronic databases PubMed (1969-12 January 2017), SPORTDiscus (1969-12 January 2017) and Scopus (1969-12 January 2017)...
June 14, 2018: Sports Biomechanics
https://www.readbyqxmd.com/read/29893604/treatment-success-of-hip-and-core-or-knee-strengthening-for-patellofemoral-pain-development-of-clinical-prediction-rules
#18
RANDOMIZED CONTROLLED TRIAL
Jennifer E Earl-Boehm, Lori A Bolgla, Carolyn Emory, Karrie L Hamstra-Wright, Sergey Tarima, Reed Ferber
CONTEXT:   Patellofemoral pain (PFP) is a common injury that interferes with quality of life and physical activity. Clinical subgroups of patients may exist, one of which is caused by proximal muscle dysfunction. OBJECTIVES:   To develop clinical prediction rules that predict a positive outcome after either a hip and core- or knee-focused strengthening program for individuals with PFP. DESIGN:   Secondary analysis of data from a randomized control trial...
June 2018: Journal of Athletic Training
https://www.readbyqxmd.com/read/29889150/core-and-back-rehabilitation-for-high-speed-rotation-sports-highlight-on-lacrosse
#19
REVIEW
Heather K Vincent, Kevin R Vincent
Lacrosse is a fast-paced game that incorporates elements from multiple sports, such as soccer, basketball, baseball, tennis, and hockey. The sport involves rapid changes of direction, endurance, sprinting, physical contact, rotational movement, passing, and shooting. Passing and shooting are further complicated by having a weighted object (ball) at the end of a long moment arm (crosse) which places increased stress on the body segments. Thus, it is important to properly prepare for sport participation by improving strength, endurance, and dynamic stability of the postural and core stability muscles...
June 2018: Current Sports Medicine Reports
https://www.readbyqxmd.com/read/29878984/physiological-responses-to-swimming-repetitive-ice-miles
#20
Beat Knechtle, Mirko Stjepanovic, Celina Knechtle, Thomas Rosemann, Caio V Sousa, Pantelis T Nikolaidis
Knechtle, B, Stjepanovic, M, Knechtle, C, Rosemann, T, Sousa, CV, and Nikolaidis, PT. Physiological responses to swimming repetitive "Ice Miles." J Strength Cond Res XX(X): 000-000, 2018-"Ice Mile" swimming (i.e., 1,608 m in water of below 5° C) is becoming increasingly popular. Since the foundation of the International Ice Swimming Association (IISA) in 2009, official races are held as World Cup Races and World Championships. Ice swimming was a demonstration sport at the 2014 Winter Olympics in Sochi, Russia...
June 6, 2018: Journal of Strength and Conditioning Research
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