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rate of force development training

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https://www.readbyqxmd.com/read/28813931/making-neurorehabilitation-fun-multiplayer-training-via-damping-forces-balancing-differences-in-skill-levels
#1
Kilian Baur, Peter Wolf, Robert Riener, Jaime E Duarte
Multiplayer environments are thought to increase the training intensity in robot-aided rehabilitation therapy after stroke. We developed a haptic-based environment to investigate the dynamics of two-player training performing time-constrained reaching movements using the ARMin rehabilitation robot. We implemented a challenge level adaptation algorithm that controlled a virtual damping coefficient to reach a desired success rate. We tested the algorithm's effectiveness in regulating the success rate during game play in a simulation with computer-controlled players, in a feasibility study with six unimpaired players, and in a single session with one stroke patient...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28800005/the-effects-of-british-army-footwear-on-ground-reaction-force-and-temporal-parameters-of-british-army-foot-drill
#2
Alex J Rawcliffe, Scott M Graham, Richard J Simpson, Gavin L Moir, Russell Jj Martindale, Stelios G Psycharakis, Chris Connaboy
High rates of occupational training-related lower-limb musculoskeletal [MSK] overuse injuries are reported for British Army recruits during basic training. Foot-drill is a repetitive impact loading occupational activity and involves striking the ground violently with an extended-knee [straight-leg] landing. Foot-drill produces vertical ground reaction forces [vGRF] equal to and/or greater than those reported for high-level plyometric exercises/activities. Shock absorbing footwear aid in the attenuation of the magnitude of vGRF, resulting in a reduced risk of lower-limb MSK overuse injury when running...
August 9, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28777249/isometric-mid-thigh-pull-performance-is-associated-with-athletic-performance-and-sprinting-kinetics-in-division-i-men-and-women-s-basketball-players
#3
Jeremy R Townsend, David Bender, William Vantrease, John Hudy, Kevin Huet, Cassie Williamson, Emily Bechke, Paul Serafini, Gerald T Mangine
PURPOSE: To examine the relationships between isometric mid-thigh pull (IMTP) force, athletic performance measures, and sprint kinetics in Division I men's and women's basketball players. METHODS: Twenty-three (male = 8, female = 15) division 1 basketball players completed a maximal 20-m sprint trial while tethered to a device which provided kinetic feedback (peak and average sprinting power, velocity and force). Additionally, one repetition-maximal (1RM) front squat, 1RM hang clean, vertical jump height, and agility (pro-agility and lane agility) tests were performed...
July 31, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28774942/on-farm-euthanasia-practices-and-attitudes-of-commercial-meat-rabbit-producers
#4
Jessica Walsh, Aaron Percival, Brian Tapscott, Patricia V Turner
Appropriate and timely on-farm euthanasia is the responsibility of the producer, working together with their herd veterinarian. Unfortunately, validated methods for euthanasia of commercial meat rabbits are lacking and there are few educational materials available for producer training. Because euthanasia must be performed in a timely fashion to minimise suffering, it is critical to ensure that methods used are aesthetic, humane and effective. We surveyed Canadian meat rabbit producers for current on-farm euthanasia practices as well as attitudes towards the methods they employed and thoughts on novel euthanasia techniques...
August 3, 2017: Veterinary Record
https://www.readbyqxmd.com/read/28762507/increasing-physical-activity-for-veterans-in-the-mental-health-intensive-case-management-program-a-community-based-intervention
#5
S Akeya Harrold, Julian Libet, Charlene Pope, Joy A Lauerer, Emily Johnson, Barbara J Edlund
AIMS AND OBJECTIVES: Individuals with severe mental illness (SMI), experience increased mortality-20 years greater disparity for men and 15 years greater disparity for women-compared to the general population (Thornicroft G. Physical health disparities and mental illness: The scandal of premature mortality. Br J Psychiatr. 2011;199:441-442). Numerous factors contribute to premature mortality in persons with SMI, including suicide and accidental death (Richardson RC, Faulkner G, McDevitt J, Skrinar GS, Hutchinson D, Piette JD...
August 1, 2017: Perspectives in Psychiatric Care
https://www.readbyqxmd.com/read/28745469/reliability-of-bounce-drop-jump-parameters-within-elite-male-rugby-players
#6
Lisa Costley, Eric Wallace, Michael Johnston, Rodney Kennedy
BACKGROUND: The aims of the study were to investigate the number of familiarisation sessions required to establish reliability of the bounce drop jump (BDJ) and subsequent reliability once familiarisation is achieved. METHOD: Seventeen trained male athletes completed 4 BDJs in 4 separate testing sessions. Force-time data from a 20 cm BDJ was obtained using two force plates (ensuring ground contact < 250 ms). Subjects were instructed to 'jump for maximal height and minimal contact time' while the best and average of four jumps were compared...
July 25, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28737590/fiber-type-composition-and-rate-of-force-development-in-endurance-and-resistance-trained-individuals
#7
Spyridon Methenitis, Konstantinos Spengos, Nikolaos Zaras, Angeliki-Nikoletta Stasinaki, Giorgos Papadimas, Giorgos Karampatsos, Giannis Arnaoutis, Gerasimos Terzis
The purpose of the study was to investigate the relationship between muscle fiber composition and the rate of force development (RFD) in well-trained individuals with different training background. Thirty-eight young males with different training background participated: 9 endurance runners, 10 power-trained, 9 strength-trained, and 10 sedentary. They performed maximal isometric leg press for the measurement of RFD. Body composition (dual x-ray absorptiometry) and vastus lateralis fiber type composition was also evaluated...
July 19, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28720183/g-loc-warning-algorithms-based-on-emg-features-of-the-gastrocnemius-muscle
#8
Sungho Kim, Taehwan Cho, Yongkyun Lee, Hyojin Koo, Booyong Choi, Dongsoo Kim
BACKGROUND: G-induced loss of consciousness (G-LOC) is mainly caused by failure to sustain an oxygenated blood supply to the pilot's brain because of the sudden acceleration in the direction of the +Gz axis, and is considered a critical safety issue. The purpose of this study was to develop G-LOC warning algorithms based on monitoring electromyograms (EMG) of the gastrocnemius muscle on the calf. METHODS: EMG data was retrieved from a total of 67 pilots and pilot trainees of the Korean Air Force during high-G training on a human centrifugal simulator...
August 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28715403/improving-strength-power-muscle-aerobic-capacity-and-glucose-tolerance-through-short-term-progressive-strength-training-among-elderly-people
#9
Eva A Andersson, Per Frank, Marjan Pontén, Björn Ekblom, Maria Ekblom, Marcus Moberg, Kent Sahlin
This protocol describes the simultaneous use of a broad span of methods to examine muscle aerobic capacity, glucose tolerance, strength, and power in elderly people performing short-term resistance training (RET). Supervised progressive resistance training for 1 h three times a week over 8 weeks was performed by RET participants (71±1 years, range 65-80). Compared to a control group without training, the RET showed improvements on the measures used to indicate strength, power, glucose tolerance, and several parameters of muscle aerobic capacity...
July 5, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28713534/low-load-high-velocity-resistance-exercises-improve-strength-and-functional-capacity-in-diabetic-patients
#10
Rodrigo Celes, Martim Bottaro, Eduardo Cadore, Jane Dullius, Fabiano Schwartz, Filipe Luzine
This study investigated the effects of low-load high-velocity resistance exercises on neuromuscular and functional outcomes in patients with Type 2 diabetes (T2D) during the early-phase of resistance training. Thirty participants with T2D performed 18 training sessions (6 weeks - 3x week) in one of two groups: low-load high-velocity exercises (LLHV, n=15, 62.1±10.5 years) or recreational activities (RA, n=15 56.7 ± 19.4 years). LLHV performed resistance exercises with 3x 8reps as fast as possible with 50-60% 1RM...
June 24, 2017: European Journal of Translational Myology
https://www.readbyqxmd.com/read/28705170/can-lokomat-therapy-with-children-and-adolescents-be-improved-an-adaptive-clinical-pilot-trial-comparing-guidance-force-path-control-and-freed
#11
Tabea Aurich-Schuler, Fabienne Grob, Hubertus J A van Hedel, Rob Labruyère
BACKGROUND: Robot-assisted gait therapy is increasingly being used in pediatric neurorehabilitation to complement conventional physical therapy. The robotic device applied in this study, the Lokomat (Hocoma AG, Switzerland), uses a position control mode (Guidance Force), where exact positions of the knee and hip joints throughout the gait cycle are stipulated. Such a mode has two disadvantages: Movement variability is restricted, and patients tend to walk passively. Kinematic variability and active participation, however, are crucial for motor learning...
July 14, 2017: Journal of Neuroengineering and Rehabilitation
https://www.readbyqxmd.com/read/28688909/are-we-making-an-impact-with-incident-learning-systems-analysis-of-quality-improvement-interventions-using-total-body-irradiation-as-a-model-system
#12
Aileen Kim, Eric Ford, Matthew Spraker, Jing Zeng, Ralph Ermoian, Loucille Jordan, Gabrielle Kane, Matthew Nyflot
PURPOSE: Despite increasing interest in incident learning systems (ILS) to improve safety and quality in radiation oncology, little is known about interventions developed in response to safety data. We used total body irradiation (TBI) as a model system to study the effectiveness of interventions from our institutional ILS. METHODS AND MATERIALS: Near-miss event reports specific to TBI were identified from a departmental ILS from March 2012 to December 2015. The near-miss risk index was rated at multidisciplinary review from 0 (no potential harm) to 4 (critical potential harm)...
June 6, 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28661914/exploration-of-two-training-paradigms-using-forced-induced-weight-shifting-with-the-tethered-pelvic-assist-device-to-reduce-asymmetry-in-individuals-after-stroke-case-reports
#13
Lauri Bishop, Moiz Khan, Dario Martelli, Lori Quinn, Joel Stein, Sunil Agrawal
Many robotic devices in rehabilitation incorporate an assist-as-needed haptic guidance paradigm to promote training. This error reduction model, while beneficial for skill acquisition, could be detrimental for long-term retention. Error augmentation (EA) models have been explored as alternatives. A robotic Tethered Pelvic Assist Device has been developed to study force application to the pelvis on gait and was used here to induce weight shift onto the paretic (error reduction) or nonparetic (error augmentation) limb during treadmill training...
June 28, 2017: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/28652223/ilae-survey-of-neuropsychology-practice-in-pediatric-epilepsy-surgery-evaluation
#14
Madison M Berl, Mary Lou Smith, Christine Bulteau
To determine the extent to which specific neuropsychological measures are in common use around the world for the assessment of children who are candidates for epilepsy surgery. As part of the work of the International League Against Epilepsy Pediatric Surgical Task Force, a survey was developed and distributed online. The survey consisted of questions related to demographics, training experience, general practice, and specific measures used and at what frequency. Seventy-eight clinicians with an average of 13...
June 1, 2017: Epileptic Disorders: International Epilepsy Journal with Videotape
https://www.readbyqxmd.com/read/28645855/training-surgical-residents-with-a-haptic-robotic-central-venous-catheterization-simulator
#15
David F Pepley, Adam B Gordon, Mary A Yovanoff, Katelin A Mirkin, Scarlett R Miller, David C Han, Jason Z Moore
OJECTIVE: Ultrasound guided central venous catheterization (CVC) is a common surgical procedure with complication rates ranging from 5 to 21 percent. Training is typically performed using manikins that do not simulate anatomical variations such as obesity and abnormal vessel positioning. The goal of this study was to develop and validate the effectiveness of a new virtual reality and force haptic based simulation platform for CVC of the right internal jugular vein. DESIGN: A CVC simulation platform was developed using a haptic robotic arm, 3D position tracker, and computer visualization...
June 20, 2017: Journal of Surgical Education
https://www.readbyqxmd.com/read/28619011/to-be-active-through-indoor-climbing-an-exploratory-feasibility-study-in-a-group-of-children-with-cerebral-palsy-and-typically-developing-children
#16
Mark Schram Christensen, Thor Jensen, Camilla B Voigt, Jens Bo Nielsen, Jakob Lorentzen
BACKGROUND: Cerebral Palsy (CP) is the most common cause of motor disabilities in children and young adults and it is also often associated with cognitive and physiological challenges. Climbing requires a multifaceted repertoire of movements, participants at all levels of expertise may be challenged functionally and cognitively, making climbing of great potential interest in (re)habilitation settings. However, until now only few research projects have investigated the feasibility of climbing as a potential activity for heightening physical activity in children with CP and the possible beneficial effects of climbing activities in populations with functional and/or cognitive challenges...
June 15, 2017: BMC Neurology
https://www.readbyqxmd.com/read/28596267/adaptations-of-motoneuron-properties-after-weight-lifting-training-in-rats
#17
Piotr Krutki, Włodzimierz Mrówczyński, Marcin Bączyk, Dawid Łochyński, Jan Celichowski
Resistance training, with repeated short-term and high-intensity exercises, is responsible for an increase in muscle mass and force. The aim of this study was to determine whether such training induces adaptations in the electrophysiological properties of motoneurons innervating the trained muscles and to relate these adaptive changes to previous observations made on motor unit contractile properties. The study was performed on adult male Wistar rats. Animals from the training group were subjected to a five-week voluntary progressive weight-lifting program, while control rats were restricted to standard cage activity...
June 8, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28595868/impaired-hip-muscle-strength-in-patients-with-femoroacetabular-impingement-syndrome
#18
Signe Kierkegaard, Inger Mechlenburg, Bent Lund, Kjeld Søballe, Ulrik Dalgas
OBJECTIVES: Patients with femoroacetabular impingement (FAI) experience hip pain as well as decreased function and lowered quality of life. The aim was to compare maximal isometric and isokinetic muscle strength (MVC) during hip flexion and extension and rate of force development (RFD) during extension between patients with FAI and a matched reference group. Secondary, the aim was to compare patient hips and subgroups defined by gender and age as well as to investigate associations between hip muscle strength and self-reported outcomes...
May 25, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28594983/a-facial-trauma-simulation-course-for-evaluation-and-treatment-of-facial-fractures
#19
J Jared Christophel, Stephen S Park, Stephen J Nogan, Garth F Essig
Importance: Traditional facial trauma laboratories are used for teaching basic concepts of fracture reduction and hardware manipulation. Facial trauma simulation laboratories allow training physicians the opportunity to develop unique treatment plans as they would in real patient encounters. Objective: To assess the value of a novel facial trauma simulation course requiring residents to practice advanced decision making. Design, Setting, and Participants: Data were prospectively collected July 23 and August 23 and 24, 2016, in a survey study during a resident physician trauma simulation course...
June 8, 2017: JAMA Facial Plastic Surgery
https://www.readbyqxmd.com/read/28572499/effect-of-calf-raise-training-on-rapid-force-production-and-balance-ability-in-elderly-men
#20
Ryoichi Ema, Shunsuke Ohki, Hirokazu Takayama, Yuji Kobayashi, Ryota Akagi
This study examined whether home-based, high-speed calf-raise training changes the rate of torque development during plantar flexion contractions and balance performance in elderly men. Thirty-four healthy elderly men (73 ± 5 yr) were randomly assigned to a training or control group (n = 17 in each group). The subjects in the training group completed 8 weeks (3 times/week) of home-based bilateral calf-raise training using body mass. Before and after the intervention, rate of torque development during plantar flexion contractions and center of pressure displacement during single-leg standing were measured...
June 1, 2017: Journal of Applied Physiology
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