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https://www.readbyqxmd.com/read/28303754/effects-of-running-experience-on-coordination-and-its-variability-in-runners
#1
Pablo Floría, Alberto Sánchez-Sixto, Reed Ferber, Andrew J Harrison
The purpose of this study was to examine the differences in coordination variability in running gait between trained runners and non-runners using continuous relative phase (CRP) analysis. Lower extremity kinematic data were collected for 22 participants during the stance phase. The participants were assigned to either a runner or non-runner group based on running volume training. Segment coordination and coordination variability were calculated for selected hip-knee and knee-ankle couplings. Independent t-tests and magnitude-based inferences were used to compare the 2 groups...
March 17, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28301525/muscle-activities-during-walking-and-running-at-energetically-optimal-transition-speed-under-normobaric-hypoxia-on-gradient-slopes
#2
Daijiro Abe, Yoshiyuki Fukuoka, Masahiro Horiuchi
Energy cost of transport per unit distance (CoT; J·kg-1·km-1) displays a U-shaped fashion in walking and a linear fashion in running as a function of gait speed (v; km·h-1). There exists an intersection between U-shaped and linear CoT-v relationships, being termed energetically optimal transition speed (EOTS; km·h-1). Combined effects of gradient and moderate normobaric hypoxia (15.0% O2) were investigated when walking and running at the EOTS in fifteen young males. The CoT values were determined at eight walking speeds (2...
2017: PloS One
https://www.readbyqxmd.com/read/28269460/monitoring-of-paces-and-gaits-using-binary-pir-sensors-with-rehabilitation-treadmill
#3
Jiang Lu, Ting Zhang, Qingquan Sun, Sanobar Kadiwal, Ishaq Unwala, Fei Hu
Recently, rehabilitation treadmills are designed for helping injured persons such as stroke patients and injury athletes in the process of physical therapy. By monitoring the changes of paces and gaits, one can estimate the progress of rehabilitation. At present, most devices that can estimate paces and gaits are wearable and/or expensive. This paper presents an inexpensive, non-intrusive wireless binary sensor system for pace estimation and lower-extreme gait recognition with low data throughput and high energy efficiency...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28268695/development-of-a-real-time-activity-monitoring-android-application-utilizing-smartstep
#4
Nagaraj Hegde, Edward Melanson, Edward Sazonov
Footwear based activity monitoring systems are becoming popular in academic research as well as consumer industry segments. In our previous work, we had presented developmental aspects of an insole based activity and gait monitoring system-SmartStep, which is a socially acceptable, fully wireless and versatile insole. The present work describes the development of an Android application that captures the SmartStep data wirelessly over Bluetooth Low energy (BLE), computes features on the received data, runs activity classification algorithms and provides real time feedback...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28261436/orthopedic-manifestations-of-type-i-camurati-engelmann-disease
#5
Alisher J Yuldashev, Chang Ho Shin, Yong Sung Kim, Woo Young Jang, Moon Seok Park, Jong Hee Chae, Won Joon Yoo, In Ho Choi, Ok Hwa Kim, Tae-Joon Cho
BACKGROUND: Camurati-Engelmann disease (CED) is a rare genetic skeletal disorder characterized by limb pain, muscle emaciation and weakness, and cortical thickening of the diaphysis of long bones. It is caused by mutations in the transforming growth factor beta 1 (TGFB1) (type I) or other unknown gene(s) (type II). We present 8 consecutive patients with type I CED. METHODS: We retrospectively reviewed medical records and radiographs of type I CED patients with special reference to the mode of presentation, process of diagnostic work-up, and disease course...
March 2017: Clinics in Orthopedic Surgery
https://www.readbyqxmd.com/read/28253053/kinematic-gait-patterns-in-competitive-and-recreational-runners
#6
Christian A Clermont, Sean T Osis, Angkoon Phinyomark, Reed Ferber
Certain homogeneous running subgroups demonstrate distinct kinematic patterns in running; however, the running mechanics of competitive and recreational runners are not well understood. Therefore, the purpose of this study was to determine whether we could separate and classify competitive and recreational runners according to gait kinematics using multivariate analyses and a machine learning approach. Participants were allocated to the 'competitive' (n=20) or 'recreational' group (n=15) based on age, gender, and recent race performance...
March 2, 2017: Journal of Applied Biomechanics
https://www.readbyqxmd.com/read/28243533/gait-changes-in-a-line-of-mice-artificially-selected-for-longer-limbs
#7
Leah M Sparrow, Emily Pellatt, Sabrina S Yu, David A Raichlen, Herman Pontzer, Campbell Rolian
In legged terrestrial locomotion, the duration of stance phase, i.e., when limbs are in contact with the substrate, is positively correlated with limb length, and negatively correlated with the metabolic cost of transport. These relationships are well documented at the interspecific level, across a broad range of body sizes and travel speeds. However, such relationships are harder to evaluate within species (i.e., where natural selection operates), largely for practical reasons, including low population variance in limb length, and the presence of confounding factors such as body mass, or training...
2017: PeerJ
https://www.readbyqxmd.com/read/28227710/monitoring-of-paces-and-gaits-using-binary-pir-sensors-with-rehabilitation-treadmill
#8
Jiang Lu, Ting Zhang, Qingquan Sun, Sanobar Kadiwal, Ishaq Unwala, Fei Hu, Jiang Lu, Ting Zhang, Qingquan Sun, Sanobar Kadiwal, Ishaq Unwala, Fei Hu, Ting Zhang, Ishaq Unwala, Qingquan Sun, Jiang Lu, Sanobar Kadiwal, Fei Hu
Recently, rehabilitation treadmills are designed for helping injured persons such as stroke patients and injury athletes in the process of physical therapy. By monitoring the changes of paces and gaits, one can estimate the progress of rehabilitation. At present, most devices that can estimate paces and gaits are wearable and/or expensive. This paper presents an inexpensive, non-intrusive wireless binary sensor system for pace estimation and lower-extreme gait recognition with low data throughput and high energy efficiency...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226882/development-of-a-real-time-activity-monitoring-android-application-utilizing-smartstep
#9
Nagaraj Hegde, Edward Melanson, Edward Sazonov, Nagaraj Hegde, Edward Melanson, Edward Sazonov, Nagaraj Hegde, Edward Melanson, Edward Sazonov
Footwear based activity monitoring systems are becoming popular in academic research as well as consumer industry segments. In our previous work, we had presented developmental aspects of an insole based activity and gait monitoring system-SmartStep, which is a socially acceptable, fully wireless and versatile insole. The present work describes the development of an Android application that captures the SmartStep data wirelessly over Bluetooth Low energy (BLE), computes features on the received data, runs activity classification algorithms and provides real time feedback...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28224442/report-of-the-primary-outcomes-for-gait-mechanics-in-men-of-the-acl-sports-trial-secondary-prevention-with-and-without-perturbation-training-does-not-restore-gait-symmetry-in-men-1-or-2-years-after-acl-reconstruction
#10
Jacob John Capin, Ryan Zarzycki, Amelia Arundale, Kathleen Cummer, Lynn Snyder-Mackler
BACKGROUND: Movement asymmetries during walking are common after anterior cruciate ligament (ACL) injury and reconstruction and may influence the early development of posttraumatic osteoarthritis. Preoperative neuromuscular training (like perturbation training, which is neuromuscular training requiring selective muscle activation in response to surface perturbations) improves gait asymmetries and functional outcomes among people who are ACL-deficient, but the effect of postoperative perturbation training on gait mechanics after ACL reconstruction is unknown...
February 21, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28211509/climbing-favours-the-tripod-gait-over-alternative-faster-insect-gaits
#11
Pavan Ramdya, Robin Thandiackal, Raphael Cherney, Thibault Asselborn, Richard Benton, Auke Jan Ijspeert, Dario Floreano
To escape danger or catch prey, running vertebrates rely on dynamic gaits with minimal ground contact. By contrast, most insects use a tripod gait that maintains at least three legs on the ground at any given time. One prevailing hypothesis for this difference in fast locomotor strategies is that tripod locomotion allows insects to rapidly navigate three-dimensional terrain. To test this, we computationally discovered fast locomotor gaits for a model based on Drosophila melanogaster. Indeed, the tripod gait emerges to the exclusion of many other possible gaits when optimizing fast upward climbing with leg adhesion...
February 17, 2017: Nature Communications
https://www.readbyqxmd.com/read/28195978/lack-of-influence-of-muscular-performance-parameters-on-spatio-temporal-adaptations-with-increased-running-velocity
#12
Luis E Roche-Seruendo, Felipe García-Pinillos, Joana Haicaguerre, Ana V Bataller-Cervero, Víctor M Soto-Hermoso, Pedro Á Latorre-Román
This study aimed to analyse the influence of muscular performance parameters on spatio-temporal gait characteristics during running when gradually increasing speed. 51 recreationally trained male endurance runners (age: 28 ± 8 years) voluntarily participated in this study. Subjects performed a battery of jumping tests (squat jump, countermovement jump, and 20 cm drop jump), and after that, the subjects performed an incremental running test (10 to 20 km/h) on a motorized treadmill. Spatio-temporal parameters were measured using the OptoGait system...
February 8, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28186914/design-and-validation-of-a-biofeedback-device-to-improve-heel-to-toe-gait-in-seniors
#13
Abhishek Vadnerkar, Sabrina Figueiredo, Nancy Mayo, Robert Kearney
A feature of healthy human walking gait is a clearly defined heel-strike at initial contact, known as heel-to-toe gait. However, a common consequence of ageing is the deterioration of this heel first gait towards a flat foot, or 'shuffling' gait. This leads to a shortened stride length, slowed gait speed, and an increased fall risk. Shuffling gait is normally treated by physiotherapy, however, therapist time is limited and training is restricted to a clinical environment. Gait rehabilitation could be expedited with the use of a device that distinguishes between heel-to-toe and shuffling gait and gives feedback to the user...
February 7, 2017: IEEE Journal of Biomedical and Health Informatics
https://www.readbyqxmd.com/read/28161687/less-hip-joint-loading-only-during-running-rather-than-walking-in-elderly-compared-to-young-adults
#14
Georgios Giarmatzis, Ilse Jonkers, Remco Baggen, Sabine Verschueren
Walking and running have been found to increase hip bone mass in postmenopausal women. However, the optimal speed to trigger osteogenesis is still under debate because the exact loading during different speeds is poorly characterized. Moreover, age related differences in gait kinematics/kinetics can potentially result in differences in peak hip loading, making extrapolation of results based on young populations to the elderly misleading. Using integrated 3D motion capture and musculoskeletal modeling, peak hip contact forces (HCFs) were calculated during walking and running from 3 to 9km/h in 14 female young (21...
January 24, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28151878/a-training-approach-to-improve-stepping-automaticity-while-dual-tasking-in-parkinson-s-disease-a-prospective-pilot-study
#15
Taylor Chomiak, Alexander Watts, Nicole Meyer, Fernando V Pereira, Bin Hu
BACKGROUND: Deficits in motor movement automaticity in Parkinson's disease (PD), especially during multitasking, are early and consistent hallmarks of cognitive function decline, which increases fall risk and reduces quality of life. This study aimed to test the feasibility and potential efficacy of a wearable sensor-enabled technological platform designed for an in-home music-contingent stepping-in-place (SIP) training program to improve step automaticity during dual-tasking (DT). METHODS: This was a 4-week prospective intervention pilot study...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28149398/the-muscle-mechanical-compromise-framework-implications-for-the-scaling-of-gait-and-posture
#16
James Richard Jim Usherwood
Many aspects of animal and human gait and posture cannot be predicted from purely mechanical work minimization or entirely based on optimizing muscle efficiency. Here, the Muscle-Mechanical Compromise Framework is introduced as a conceptual paradigm for considering the interactions and compromises between these two objectives. Current assumptions in implementing the Framework are presented. Implications of the compromise are discussed and related to the scaling of running mechanics and animal posture.
September 1, 2016: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28149368/the-influence-of-the-gait-related-arm-swing-on-elevation-gain-measured-by-sport-watches
#17
Rahel Ammann, Wolfgang Taube, Matthias Neuhaus, Thomas Wyss
The elevation gain is an important contributor to the total workload in endurance sports. The purpose of this study was to evaluate the influence of the arm swing on elevation gain in three sport watches (Garmin® Forerunner 910XT, Polar® RS800CX and Suunto® Ambit2) on a flat 400 m outdoor track. Altogether, a total of 120 repetitions of 1,200 m were performed at self-selected speeds corresponding to strolling, walking, jogging and running. During the assessment two devices of each sport watch, one secured on the hip and one on the wrist, were worn by the participants...
June 1, 2016: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28149366/relationships-between-movements-of-the-lower-limb-joints-and-the-pelvis-in-open-and-closed-kinematic-chains-during-a-gait-cycle
#18
Zdenek Svoboda, Miroslav Janura, Patrik Kutilek, Eva Janurova
Lots of athletic skills performed during practice or competition are initiated by the legs, where athletes either walk or run prior to executing specific skills. Kinematic chains are used to describe the relationships between body segments and joints during movement. The aim of this study was to determine the relationships between movements of lower limb segments and the pelvis in open and closed kinematic chains while walking. The experimental group consisted of 32 males (age 23.3 ± 2.5 years, body mass 78...
June 1, 2016: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28122432/functional-neuroanatomy-for-posture-and-gait-control
#19
REVIEW
Kaoru Takakusaki
Here we argue functional neuroanatomy for posture-gait control. Multi-sensory information such as somatosensory, visual and vestibular sensation act on various areas of the brain so that adaptable posture-gait control can be achieved. Automatic process of gait, which is steady-state stepping movements associating with postural reflexes including headeye coordination accompanied by appropriate alignment of body segments and optimal level of postural muscle tone, is mediated by the descending pathways from the brainstem to the spinal cord...
January 2017: Journal of Movement Disorders
https://www.readbyqxmd.com/read/28118401/arbitrary-symmetric-running-gait-generation-for-an-underactuated-biped-model
#20
Behnam Dadashzadeh, Mohammad Esmaeili, Chris Macnab
This paper investigates generating symmetric trajectories for an underactuated biped during the stance phase of running. We use a point mass biped (PMB) model for gait analysis that consists of a prismatic force actuator on a massless leg. The significance of this model is its ability to generate more general and versatile running gaits than the spring-loaded inverted pendulum (SLIP) model, making it more suitable as a template for real robots. The algorithm plans the necessary leg actuator force to cause the robot center of mass to undergo arbitrary trajectories in stance with any arbitrary attack angle and velocity angle...
2017: PloS One
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