keyword
MENU ▼
Read by QxMD icon Read
search

ankle extensor

keyword
https://www.readbyqxmd.com/read/29448160/multi-plane-multi-joint-lower-extremity-support-moments-during-a-rapid-deceleration-task-implications-for-knee-loading
#1
Jeffery T Podraza, Scott C White, Dan K Ramsey
The principle of lower limb support, and the contribution of hip, knee and ankle moments to an overall limb support strategy for an impact-like, rapid deceleration movement may help explain individual moment magnitude changes, thereby providing insight into how injury might occur or be avoided. Twenty subjects performed single limb, impact-like, deceleration landings at three different knee flexion angles in the range of 0-25, 25-50 and 50-75°. Kinematic and kinetic measures identified hip, knee and ankle moment contribution to limb support moments (LSMs) in three planes...
February 12, 2018: Human Movement Science
https://www.readbyqxmd.com/read/29443731/recovery-of-an-injured-corticofugal-tract-from-the-supplementary-motor-area-in-a-patient-with-traumatic-brain-injury-a-case-report
#2
Sung Ho Jang, Seong Ho Kim, Jeong Pyo Seo
RATIONALE: We report on a patient with traumatic brain injury who showed motor recovery concurrent with recovery of injured corticofugal tracts (CFTs), diagnosed by diffusion tensor tractography (DTT). PATIENT CONCERNS: Four weeks after onset, when the patient started rehabilitation, he showed severe weakness of both upper and lower extremities [Motricity Index (MI, full score: 100/100): 9/30]. DIAGNOSES: A 29-year-old male patient underwent conservative management for traumatic hemorrhages in both frontal lobes and right thalamus resulting from a car accident...
February 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29423946/is-stiffness-related-to-athletic-groin-pain
#3
S Gore, A Franklyn-Miller, C Richter, E C Falvey, E King, K Moran
Athletic groin pain (AGP) is a common injury prevalent in field sports. One biomechanical measure that may be of importance for injury risk is stiffness. To date however, stiffness has not been examined in AGP. The primary aim was to determine if AGP affects vertical and joint stiffness and if so, whether successful rehabilitation is associated with a change in stiffness. Sixty-five male patients with AGP and fifty male controls were recruited to this study. Assessment included a biomechanical examination of stiffness during a lateral hurdle hop test...
February 9, 2018: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/29418119/leg-muscle-architecture-in-primates-and-its-correlation-with-locomotion-patterns
#4
Damiano Marchi, Carissa L Leischner, Francisco Pastor, Adam Hartstone-Rose
Bone biomechanical studies indicate that leg bone structure can be related to different locomotor patterns. The osteological correlates of extant primates' locomotion patterns and substrate use are important to consider when estimating corresponding behaviors of extinct primates. Here, we test if these same patterns are seen in the differences in leg muscular architecture. Muscle mass, fascicle lengths (FL), physiological cross-sectional area (PCSA), reduced PCSA (RPCSA) and tendon-to-muscle belly ratio were studied in 33 primate species (6 strepsirrhines, 14 platyrrhines and 13 catarrhines)...
March 2018: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/29413451/muscle-activity-and-kinetics-of-lower-limbs-during-walking-in-pronated-feet-individuals-with-and-without-low-back-pain
#5
Nader Farahpour, AmirAli Jafarnezhadgero, Paul Allard, Mahdi Majlesi
The objectives of this study were to investigate whether excessive feet pronation alters the joints' kinematics, kinetics and the activity of involved muscles during gait in low back pain patients. METHODS: The lower limb joints' motion, moment and power, as well as the activity of involved muscles during walking were measured in a control group, and two experimental groups including a group with excessive feet pronation only, and another group of low back pain patients with excessive feet pronation...
January 30, 2018: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/29409246/prospective-study-of-the-inside-out-arthroscopic-ankle-ligament-technique-preliminary-result
#6
Caio Nery, Lucas Fonseca, Fernando Raduan, Marcus Moreno, Daniel Baumfeld
BACKGROUND: Lateral ankle ligament injury is among the most common orthopedic injuries. The objective of this study is to present the preliminary prospective results of treatment using the "Inside-Out" variant of the fully arthroscopic Broström-Gould technique. METHODS: Twenty six patients were included: 20 male and 6 female, aged 19-60 years, mean 41 years. All patients had positive "anterior drawer" and "talar tilt" tests. When necessary, cartilage injuries were treated with microfracture and arthroscopic resection for anterior impingement; three patients had hindfoot varus, on whom Dwyer osteotomy was performed; one patient had peroneal tendinopathy and was treated with tendoscopic debridement and another one had partial injury of the deltoid ligament, which was treated by direct repair...
March 22, 2017: Foot and Ankle Surgery: Official Journal of the European Society of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29395227/the-relationships-between-physical-capacity-and-biomechanical-plasticity-in-old-adults-during-level-and-incline-walking
#7
Daniel Kuhman, John Willson, J C Mizelle, Paul DeVita
Old compared to young adults exhibit increased hip and decreased ankle mechanical output during walking - a phenomenon known as biomechanical plasticity. Previous comparison studies suggest that low compared to high capacity old adults exhibit larger magnitudes of this plasticity, however the precise relationship between capacity and plasticity magnitude remains unclear. The purpose of this study was to quantify the relationships between physical capacity and biomechanical plasticity magnitude during level and incline walking...
January 17, 2018: Journal of Biomechanics
https://www.readbyqxmd.com/read/29384455/reciprocal-inhibition-between-motor-neurons-of-the-tibialis-anterior-and-triceps-surae-in-humans
#8
Utku Şükrü Yavuz, Francesco Negro, Robin Diedrichs, Dario Farina
Motor neurons innervating antagonist muscles receive reciprocal inhibitory afferent inputs in order to facilitate the joint movement in the two directions. The present study investigates the mutual transmission of reciprocal inhibitory afferent inputs between the tibialis anterior (TA) and triceps surae (soleus and medial gastrocnemius) motor units. We assessed this mutual mechanism in large populations of motor units for building a statistical distribution of the inhibition amplitudes during standardized input to the motor neuron pools in order to minimize the effect of modulatory pathways...
January 31, 2018: Journal of Neurophysiology
https://www.readbyqxmd.com/read/29362034/gastrocnemius-recession-for-metatarsalgia
#9
REVIEW
Rose E Cortina, Brandon L Morris, Bryan G Vopat
Metatarsalgia is a common cause of plantar forefoot pain. Causes of metatarsalgia include foot anatomy, gait mechanics, and foot and ankle deformity. One specific cause, mechanical metatarsalgia, occurs because of gastrocnemius muscle contracture, which overloads the forefoot. Muscular imbalance of the gastrocnemius complex alters gait mechanics, which increases recruitment of the toe extensor musculature, thereby altering forefoot pressure. Patients with concomitant metatarsalgia and gastrocnemius contracture demonstrate ankle equinus and a positive Silfverskiold test...
March 2018: Foot and Ankle Clinics
https://www.readbyqxmd.com/read/29232980/effectiveness-of-aquatic-versus-land-physiotherapy-in-the-treatment-of-peripheral-neuropathies-a-randomized-controlled-trial
#10
Ilaria Zivi, Sara Maffia, Vanessa Ferrari, Alessio Zarucchi, Katia Molatore, Roberto Maestri, Giuseppe Frazzitta
OBJECTIVE: To compare the effects on gait and balance of aquatic physiotherapy versus on-land training, in the context of an inpatient rehabilitation treatment tailored for peripheral neuropathies. DESIGN: Parallel-group, single-center, single-blind randomized controlled trial. SUBJECTS AND SETTING: Consecutive patients affected by peripheral neuropathy admitted in our Neuro-Rehabilitation Unit. INTERVENTIONS: Patients received a four-week rehabilitation program composed by daily sessions of conventional physiotherapy and three sessions/week of specific treatment (aquatic vs...
December 1, 2017: Clinical Rehabilitation
https://www.readbyqxmd.com/read/29220619/the-effect-of-whole-body-vibration-on-lower-body-resistance-detraining-in-college-age-women
#11
Keston G Lindsay, David L Nichols, Ronald W Davis, David D Marshall
PURPOSE: This study explored the effect of whole-body vibration (WBV) using accelerations of 2.56 g to 7.68 g on lower-body detraining. METHODS: All participants (N = 20) were trained using a lower-body resistance-training program for 30 min twice per week from Week 0 to Week 6. At the end of the program, they were randomly assigned to a control group that performed no further training or a WBV group that performed a progressive static WBV program. Data for the 5-repetition-maximum (5RM) squat and extensors and flexors of the knee and ankle were collected at Weeks 0, 6, 8, 10, and 12 for all participants...
December 8, 2017: Research Quarterly for Exercise and Sport
https://www.readbyqxmd.com/read/29189883/arthroscopic-treatment-combined-with-the-ankle-stabilization-procedure-is-effective-for-sinus-tarsi-syndrome-in-patients-with-chronic-ankle-instability
#12
Sheng-Kun Li, Yu-Jie Song, Hong Li, Baofu Wei, Ying-Hui Hua, Hong-Yun Li
PURPOSE: This study aimed to investigate the results of arthroscopic treatment combined with ankle stabilization procedure for sinus tarsi syndrome (STS) in patients with chronic ankle instability (CAI). METHODS: A total of 57 patients (31 males and 26 females, average age 29.9 ± 8.4 years ranging from 15 to 52 years) with STS and CAI who accepted operation from 2013 to 2015 were included in this retrospective study. Surgical procedures included thorough tarsal sinus debridement and repair or reconstruction of lateral ankle ligaments according to the quality of ligaments...
November 30, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29187556/time-course-of-functional-recovery-during-first-three-months-after-surgical-transection-and-repair-of-nerves-to-feline-soleus-and-lateral-gastrocnemius-muscles
#13
Robert J Gregor, Huub Maas, Margarita A Bulgakova, Alanna Oliver, Arthur W English, Boris I Prilutsky
Locomotion outcomes after peripheral nerve injury and repair in cats have been described in the literature for the period immediately following the injury (muscle denervation period) and then again for an ensuing period of long-term recovery (at three months and longer) resulting in muscle self-reinnervation. Little is known about the changes in muscle activity and walking mechanics during mid-recovery, i.e. the early reinnervation period that takes place between 5 and 10 weeks of recovery. Here, we investigated hindlimb mechanics and EMG activity of ankle extensors in six cats during level and slope walking before and every two weeks thereafter in a 14-week period of recovery after the soleus (SO) and lateral gastrocnemius (LG) muscle nerves in one hindlimb were surgically transected and repaired...
November 29, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/29179043/the-effect-of-exercise-intensity-on-joint-power-and-dynamics-in-ergometer-double-poling-performed-by-cross-country-skiers
#14
Jørgen Danielsen, Øyvind Sandbakk, David McGhie, Gertjan Ettema
The purpose of this study was to examine the effect of increasing exercise intensity on the role of joint powers in ergometer double poling (DP), while taking specific dynamic constraints into account. One main question was whether lower-body power contribution increased or decreased with increasing intensity. Nine male Norwegian national-level cross-country skiers performed ergometer DP at low, moderate, high and maximal intensity. Kinematics, and ground (GRF) and poling (Fpoling) reaction forces were recorded and used in link segment modeling to obtain joint and whole-body dynamics...
November 23, 2017: Human Movement Science
https://www.readbyqxmd.com/read/29176075/detection-of-surface-emg-activity-from-extensor-digitorum-brevis-muscle-in-healthy-children-walking
#15
Francesco Di Nardo, Annachiara Strazza, Michela Sara Palmieri, Alessandro Mengarelli, Laura Burattini, Ornella Orsini, Antonio Bortone, Sandro Fioretti
The purpose of the study was the assessment of activation patterns of Extensor digitorum brevis (EDB) muscle in healthy children, during walking at self-selected speed and cadence. To this aim, Statistical gait analysis was performed on surface electromyographic (sEMG) signals of EDB, in a large number (hundreds) of strides per subject. sEMG data from Tibialis Anterior (TA) and Gastrocnemius Lateralis (GL) were also investigated for comparative purposes. Results from twenty-three healthy children showed a large variability in number of muscle activations, occurrence frequency, and onset-offset instants across considered strides...
November 26, 2017: Physiological Measurement
https://www.readbyqxmd.com/read/29164719/circadian-variation-of-flexor-withdrawal-and-crossed-extensor-reflexes-in-patients-with-restless-legs-syndrome
#16
Chloe Dafkin, Andrew Green, Benita Olivier, Warrick Mckinon, Samantha Kerr
An evening state of spinal hyperexcitability has been proposed to be a possible cause of evening increases in restless legs syndrome symptoms. Thus, the objective of the current study was to assess the circadian variation in spinal excitability in patients with restless legs syndrome based on flexor withdrawal reflex and crossed extensor reflex responses. The reflexes were elicited on 12 participants with restless legs syndrome and 12 healthy control participants in the evening (PM) and the morning (AM). Reflex response magnitudes were measured electromyographically and kinematically...
November 22, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/29162077/subtalar-instability-imaging-features-of-subtalar-ligaments-on-3d-isotropic-ankle-mri
#17
Tae Hyung Kim, Sung Gyu Moon, Hong-Geun Jung, Na Ra Kim
BACKGROUND: MRI analysis of subtalar ligaments in the tarsal sinus has not been well performed. We retrospectively investigated the appearance of subtalar ligaments using 3D isotropic MRI and compared imaging findings of subtalar ligaments between patients with subtalar instability (STI) and controls. METHODS: Preoperative MRIs of 23 STI patients treated with arthroscopic subtalar reconstruction were compared to MRIs of 23 age- and sex-matched control subjects without STI...
November 21, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29142095/patterns-of-intermuscular-inhibitory-force-feedback-across-cat-hindlimbs-suggest-a-flexible-system-for-regulating-whole-limb-mechanics
#18
Mark A Lyle, T Richard Nichols
Prior work has suggested that Golgi tendon organ feedback, via its distributed network linking muscles spanning all joints, could be used by the nervous system to help regulate whole limb mechanics if appropriately organized. We tested this hypothesis by characterizing the patterns of intermuscular force dependent feedback between the primary extensor muscles spanning the knee, ankle and toes in decerebrate cat hindlimbs. Intermuscular force feedback was evaluated by stretching tendons of selected muscles in isolation and in pairwise combinations and then measuring the resulting force dependent intermuscular interactions...
November 15, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/29121964/muscle-force-distribution-of-the-lower-limbs-during-walking-in-diabetic-individuals-with-and-without-polyneuropathy
#19
Aline A Gomes, Marko Ackermann, Jean P Ferreira, Maria Isabel V Orselli, Isabel C N Sacco
BACKGROUND: Muscle force estimation could advance the comprehension of the neuromuscular strategies that diabetic patients adopt to preserve walking ability, which guarantees their independence as they deal with their neural and muscular impairments due to diabetes and neuropathy. In this study, the lower limb's muscle force distribution during gait was estimated and compared in diabetic patients with and without polyneuropathy. METHODS: Thirty individuals were evaluated in a cross-sectional study, equally divided among controls (CG) and diabetic patients with (DNG) and without (DG) polyneuropathy...
November 9, 2017: Journal of Neuroengineering and Rehabilitation
https://www.readbyqxmd.com/read/29091148/relation-between-functional-mobility-and-dynapenia-in-institutionalized-frail-elderly
#20
Antonio Vinicius Soares, Elessandra Marcelino, Késsia Cristina Maia, Noé Gomes Borges
OBJECTIVE: To investigate the relation between functional mobility and dynapenia in institutionalized frail elderly. METHODS: A descriptive, correlational study involving 26 institutionalized elderly men and women, mean age 82.3±6 years. The instruments employed were the Mini Mental State Examination, the Geriatric Depression Scale, the International Physical Activity Questionnaire, the Timed Up and Go test, a handgrip dynamometer and a portable dynamometer for large muscle groups (shoulder, elbow and hip flexors, knee extensors and ankle dorsiflexors)...
July 2017: Einstein
keyword
keyword
66968
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"