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https://www.readbyqxmd.com/read/28110481/pregnancy-associated-transient-osteoporosis-of-the-hip-results-of-a-case-control-study
#1
Peyman Hadji, Jelena Boekhoff, Melitta Hahn, Lars Hellmeyer, Olaf Hars, Ioannis Kyvernitakis
: The etiology and underlying mechanisms of transient of osteoporosis of the hip (TOH) during pregnancy are still unclear, since no systematic analyses exist. Our results support the hypothesis that TOH is a multifactorial disease, which is associated with immobility, dental problems, and lack of exercise in childhood. INTRODUCTION: Pregnancy-associated transient osteoporosis of the hip (TOH) is a rare but severe form of osteoporosis, which may affect a subgroup of women in the last trimester of pregnancy or immediately postpartum...
December 2017: Archives of Osteoporosis
https://www.readbyqxmd.com/read/28074740/what-goes-around-can-come-around-an-unexpected-deleterious-effect-of-using-mouse-running-wheels-for-environmental-enrichment
#2
Renee Y
Environmental enrichment items such as running wheels can promote the wellbeing of laboratory mice. Growing evidencesuggests that wheel running simulates exercise effects in many mouse models of human conditions, but this activityalso might change other aspects of mouse behavior. In this case study, we show that the presence of running wheels leadsto pronounced and permanent circling behavior with route-tracing in a proportion of the male mice of a genetically distinctcohort. The genetic background of this cohort includes a mutation in Arhgap19, but genetic crosses showed that an unknownsecond-site mutation likely caused the induced circling behavior...
January 10, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28002180/effect-of-whole-body-vibration-on-neuromuscular-activation-of-leg-muscles-during-dynamic-exercises-in-individuals-with-stroke
#3
Lin-Rong Liao, Marco Yiu Chung Pang
This study examined the leg muscle activity during exposure to different whole-body vibration (WBV) intensities while performing various dynamic exercises in chronic stroke patients. Thirty chronic stroke patients performed a series of dynamic exercises under three conditions: 1) low-intensity WBV [peak acceleration: 0.96 units of gravity of Earth (g)], 2) high-intensity WBV (1.61g), and 3) no WBV (NWBV). Neuromuscular activation was recorded with surface electromyography (EMG) on bilateral biceps femoris (BF), vastus lateralis (VL), tibialis anterior (TA) and gastrocnemius (GS) in both legs and was reported as EMGrms (root mean square) normalized to % maximal voluntary contraction...
December 8, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28000175/adaptation-to-microgravity-deconditioning-and-countermeasures
#4
REVIEW
Kunihiko Tanaka, Naoki Nishimura, Yasuaki Kawai
Humans are generally in standing or sitting positions on Earth during the day. The musculoskeletal system supports these positions and also allows motion. Gravity acting in the longitudinal direction of the body generates a hydrostatic pressure difference and induces footward fluid shift. The vestibular system senses the gravity of the body and reflexively controls the organs. During spaceflight or exposure to microgravity, the load on the musculoskeletal system and hydrostatic pressure difference is diminished...
March 2017: Journal of Physiological Sciences: JPS
https://www.readbyqxmd.com/read/27941488/no-differences-between-alter-g-trainer-and-active-and-passive-recovery-strategies-on-isokinetic-strength-systemic-oxidative-stress-and-perceived-muscle-soreness-after-exercise-induced-muscle-damage
#5
Matthew B Cooke, Carrie Nix, Lori Greenwood, Mike Greenwood
The incidence of muscle injuries is prevalent in elite sport athletes as well as weekend warriors and strategies that safely and effectively hasten recovery are highly desirable. The purpose of this study was to examine the differences between three recovery methods after eliciting muscle damage in recreationally active men relative to maximal isokinetic contractions, perceived muscle soreness and psychological mood states. Twenty-five recreationally active men (22.15±3.53yrs, 75.75±11.91kg, 180.52±7.3cm) were randomly matched by VO2 peak (53...
November 28, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27895550/closed-loop-task-difficulty-adaptation-during-virtual-reality-reach-to-grasp-training-assisted-with-an-exoskeleton-for-stroke-rehabilitation
#6
Florian Grimm, Georgios Naros, Alireza Gharabaghi
Stroke patients with severe motor deficits of the upper extremity may practice rehabilitation exercises with the assistance of a multi-joint exoskeleton. Although this technology enables intensive task-oriented training, it may also lead to slacking when the assistance is too supportive. Preserving the engagement of the patients while providing "assistance-as-needed" during the exercises, therefore remains an ongoing challenge. We applied a commercially available seven degree-of-freedom arm exoskeleton to provide passive gravity compensation during task-oriented training in a virtual environment...
2016: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/27893476/comparison-of-muscle-involvement-and-posture-between-the-conventional-deadlift-and-a-walk-in-style-deadlift-machine
#7
Benjamin J Snyder, Courtney P Cauthen, Scott R Senger
The deadlift exercise is one of the most effective exercises for developing lower-body strength; however, technique errors can lead to low back injuries. The use of a 'walk-in' deadlift machine removes the weight bar by using a lever system with independent handles on either side of the body. Theoretically, this would allow alignment of the load with the center of gravity, encouraging a more upright torso and decreasing the involvement of the low back extensors. This study compared trunk angle, knee angle and electrical activity of key muscles between the conventional deadlift (CDL) and two foot positions (ball of foot or toe alignment) with pronated grip, (called BallPro and ToePro) of a walk-in deadlift machine among high-skilled and low-skilled lifters...
November 16, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27890536/estimation-of-the-center-of-rotation-using-wearable-magneto-inertial-sensors
#8
M Crabolu, D Pani, L Raffo, A Cereatti
Determining the center of rotation (CoR) of joints is fundamental to the field of human movement analysis. CoR can be determined using a magneto-inertial measurement unit (MIMU) using a functional approach requiring a calibration exercise. We systematically investigated the influence of different experimental conditions that can affect precision and accuracy while estimating the CoR, such as (a) angular joint velocity, (b) distance between the MIMU and the CoR, (c) type of the joint motion implemented, (d) amplitude of the angular range of motion, (e) model of the MIMU used for data recording, (f) amplitude of additive noise on inertial signals, and (g) amplitude of the errors in the MIMU orientation...
December 8, 2016: Journal of Biomechanics
https://www.readbyqxmd.com/read/27887872/optimizing-the-rehabilitation-of-elbow-lateral-collateral-ligament-injuries-a-biomechanical-study
#9
Ranita H K Manocha, Jonathan R Kusins, James A Johnson, Graham J W King
BACKGROUND: Elbow lateral collateral ligament (LCL) injury may arise after trauma or lateral surgical approaches. The optimal method of rehabilitating the LCL-insufficient elbow is unclear. Therapists often prescribe active motion exercises with the forearm pronated. Recently, overhead exercises have become popular as they may enable gravity to compress the elbow joint, improving stability, although this has not been proved biomechanically. This investigation aimed to quantify the effects of several variables used in LCL injury rehabilitation on elbow stability...
November 22, 2016: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/27765712/walking-balance-and-compensatory-gait-mechanisms-in-surgically-treated-patients-with-adult-spinal-deformity
#10
Mitsuru Yagi, Hideaki Ohne, Tsunehiko Konomi, Kanehiro Fujiyoshi, Shinjiro Kaneko, Masakazu Takemitsu, Masafumi Machida, Yoshiyuki Yato, Takashi Asazuma
BACKGROUND CONTEXT: Gait patterns and their relationship to demographic and radiographic data in patients with adult spinal deformity (ASD) have not been fully documented. PURPOSE: This study aimed to assess gait pattern in patients with ASD and the effect of corrective spinal surgery on gait. DESIGN/SETTING: This is a prospective case series. PATIENT SAMPLE: The gait patterns of 33 consecutive women with ASD (age 67...
October 17, 2016: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/27754783/the-effects-of-fast-bowling-fatigue-and-adhesive-taping-on-shoulder-joint-position-sense-in-amateur-cricket-players-in-victoria-australia
#11
Nivan Weerakkody, Trevor Allen
The impact that muscle fatigue and taping have on proprioception in an applied sporting context remains unclear. The purpose of this study was to investigate disturbances in position sense at the shoulder joint, and asses the effectiveness of adhesive tape in preventing injury and improving performance, after a bout of cricket fast bowling. Among amateur cricket players (N = 14), shoulder position sense, maximum voluntary contraction (MVC) force and bowling accuracy was assessed before and immediately after a fatiguing exercise bout of fast bowling...
October 18, 2016: Journal of Sports Sciences
https://www.readbyqxmd.com/read/27710146/high-prevalence-of-dehydration-and-inadequate-nutritional-knowledge-among-university-and-club-level-athletes
#12
Pamela J Magee, Alison M Gallagher, Jacqueline M McCormack
Although dehydration of ≥2% body weight (BW) loss significantly impairs endurance performance, dehydration remains prevalent among athletes and may be owing to a lack of knowledge in relation to fluid requirements. The aim of this study was to assess the hydration status of university/club level athletes (n=430) from a range of sports/activities (army officer cadet training; bootcamp training; cycling; Gaelic Athletic Association camogie, football and hurling; golf; hockey; netball; rugby; running (sprinting and endurance); Shotokan karate and soccer) immediately before and after training/competition and to assess their nutritional knowledge...
October 6, 2016: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/27677888/a-new-method-for-self-paced-peak-performance-testing-on-a-treadmill
#13
Kenneth J Hunt, Prasanna Anandakumaran, Jonas A Loretz, Jittima Saengsuwan
PURPOSE: Self-paced maximal testing methods may be able to exploit central mediation of function-limiting fatigue and therefore have potential to generate more valid estimates of peak oxygen uptake. The aim of this study was to investigate the feasibility of a new method for self-paced peak performance testing on treadmills and to compare peak and submaximal performance outcomes with those obtained using a non-self-paced ('computer-paced') method employing predetermined speed and slope profiles...
September 28, 2016: Clinical Physiology and Functional Imaging
https://www.readbyqxmd.com/read/27630431/effect-of-home-based-training-using-a-slant-board-with-dorsiflexed-ankles-on-walking-function-in-post-stroke-hemiparetic-patients
#14
Yasuhide Nakayama, Setsu Iijima, Wataru Kakuda, Masahiro Abo
[Purpose] To investigate the effects of a 30-day rehabilitation program using a slant board on walking function in post-stroke hemiparetic patients. [Subjects and Methods] Six hemiparetic patients with gait disturbance were studied. The patients were instructed to perform a home-based rehabilitation program using a slant board, thrice daily for 30 days, the exercise included standing on the slant board for 3 minutes, with both ankles dorsiflexed without backrest. For all patients, the Brunnstrom Recovery Stage, Barthel Index, range of motion of the ankle joint, modified Ashworth scale scole for calf muscle, sensory impairments with Numeral Rating Scale, maximum walking speed, number of steps, and Timed "Up and Go" test were serially evaluated at the beginning and end of the 30-day program...
August 2016: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/27555805/hybrid-neuroprosthesis-for-the-upper-limb-combining-brain-controlled-neuromuscular-stimulation-with-a-multi-joint-arm-exoskeleton
#15
Florian Grimm, Armin Walter, Martin Spüler, Georgios Naros, Wolfgang Rosenstiel, Alireza Gharabaghi
Brain-machine interface-controlled (BMI) neurofeedback training aims to modulate cortical physiology and is applied during neurorehabilitation to increase the responsiveness of the brain to subsequent physiotherapy. In a parallel line of research, robotic exoskeletons are used in goal-oriented rehabilitation exercises for patients with severe motor impairment to extend their range of motion (ROM) and the intensity of training. Furthermore, neuromuscular electrical stimulation (NMES) is applied in neurologically impaired patients to restore muscle strength by closing the sensorimotor loop...
2016: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/27459844/analysis-of-reaching-movements-of-upper-arm-in-robot-assisted-exercises-kinematic-assessment-of-robot-assisted-upper-arm-reaching-single-joint-movements
#16
Luigi Iuppariello, Giovanni D'Addio, Maria Romano, Paolo Bifulco, Bernardo Lanzillo, Nicola Pappone, Mario Cesarelli
Robot-mediated therapy (RMT) has been a very dynamic area of research in recent years. Robotics devices are in fact capable to quantify the performances of a rehabilitation task in treatments of several disorders of the arm and the shoulder of various central and peripheral etiology. Different systems for robot-aided neuro-rehabilitation are available for upper limb rehabilitation but the biomechanical parameters proposed until today, to evaluate the quality of the movement, are related to the specific robot used and to the type of exercise performed...
April 2016: Giornale Italiano di Medicina del Lavoro Ed Ergonomia
https://www.readbyqxmd.com/read/27451589/respiratory-rehabilitation-in-healing-depression-and-anxiety-in-copd-patients
#17
Maria-Mădălina Bodescu, Adina Magdalena Turcanu, Maria-Cristina Gavrilescu, T Mihăescu
UNLABELLED: Chronic Obstructive Pulmonary Disease (COPD) is an inflammatory affection of the whole lung, characterized by an accelerated loss of the pulmonary functions, that reduces the patients' independence and stops them from having a normal, active life. The medical rehabilitation is considered "Third class rehabilitation", after preventive medicine and pharmaceutical medicine, and the respiratory rehabilitation recovery represents a complex structure of service addressing to patients with chronic pulmonary illnesses whose aim is to optimize the physical performances, psycho-social and autonomy...
October 2015: Pneumologia: Revista Societății Române de Pneumologie
https://www.readbyqxmd.com/read/27445658/closed-loop-neuroprosthesis-for-reach-to-grasp-assistance-combining-adaptive-multi-channel-neuromuscular-stimulation-with-a-multi-joint-arm-exoskeleton
#18
Florian Grimm, Alireza Gharabaghi
Stroke patients with severe motor deficits cannot execute task-oriented rehabilitation exercises with their affected upper extremity. Advanced rehabilitation technology may support them in performing such reach-to-grasp movements. The challenge is, however, to provide assistance as needed, while maintaining the participants' commitment during the exercises. In this feasibility study, we introduced a closed-loop neuroprosthesis for reach-to-grasp assistance which combines adaptive multi-channel neuromuscular stimulation with a multi-joint arm exoskeleton...
2016: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/27445655/compensation-or-restoration-closed-loop-feedback-of-movement-quality-for-assisted-reach-to-grasp-exercises-with-a-multi-joint-arm-exoskeleton
#19
Florian Grimm, Georgios Naros, Alireza Gharabaghi
Assistive technology allows for intensive practice and kinematic measurements during rehabilitation exercises. More recent approaches attach a gravity-compensating multi-joint exoskeleton to the upper extremity to facilitate task-oriented training in three-dimensional space with virtual reality feedback. The movement quality, however, is mostly captured through end-point measures that lack information on proximal inter-joint coordination. This limits the differentiation between compensation strategies and genuine restoration both during the exercise and in the course of rehabilitation...
2016: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/27426699/low-and-moderate-doses-of-caffeine-late-in-exercise-improve-performance-in-trained-cyclists
#20
RANDOMIZED CONTROLLED TRIAL
Jason L Talanian, Lawrence L Spriet
The aim of the present study was to assess if low and moderate doses of caffeine delivered in a carbohydrate-electrolyte solution (CES) late in exercise improved time-trial (TT) performance. Fifteen (11 male, 4 female) cyclists (age, 22.5 ± 0.9 years; body mass, 69.3 ± 2.6 kg; peak oxygen consumption, 64.6 ± 1.9 mL·min(-1)·kg(-1)) completed 4 double-blinded randomized trials. Subjects completed 120 min of cycling at ∼60% peak oxygen consumption with 5 interspersed 120-s intervals at ∼82% peak oxygen consumption, immediately followed by 40-s intervals at 50 W...
August 2016: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
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