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https://www.readbyqxmd.com/read/29643592/does-trampoline-or-hard-surface-jumping-influence-lower-extremity-alignment
#1
Kiyokazu Akasaka, Akihiro Tamura, Aoi Katsuta, Ayako Sagawa, Takahiro Otsudo, Yu Okubo, Yutaka Sawada, Toby Hall
[Purpose] To determine whether repetitive trampoline or hard surface jumping affects lower extremity alignment on jump landing. [Subjects and Methods] Twenty healthy females participated in this study. All subjects performed a drop vertical jump before and after repeated maximum effort trampoline or hard surface jumping. A three-dimensional motion analysis system and two force plates were used to record lower extremity angles, moments, and vertical ground reaction force during drop vertical jumps. [Results] Knee extensor moment after trampoline jumping was greater than that after hard surface jumping...
December 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/29625411/joint-moment-strategies-during-stair-descent-in-patients-with-peripheral-arterial-disease-and-intermittent-claudication
#2
Stephanie L King, Natalie Vanicek, Thomas D O'Brien
OBJECTIVE: To determine the lower limb joint kinetic strategies during stair descent in claudicants with peripheral arterial disease (PAD-IC). DESIGN: Cross-sectional observation study. SETTING: University laboratory. PARTICIPANTS: A total of 22 participants; 10 healthy controls and 12 patients diagnosed with PAD-IC. MAIN OUTCOME MEASURES: Between-group comparisons of ground reaction force (GRF) and, hip, knee and ankle kinetics during steady-state stair descent...
March 26, 2018: Gait & Posture
https://www.readbyqxmd.com/read/29623234/the-positive-benefits-of-negative-movement-patterns-following-total-knee-arthroplasty
#3
Jesse C Christensen, K Bo Foreman, Paul C LaStayo
Introduction: Eccentric (negative) resistance exercise of the legs using specialized machines has been reported to be useful and often superior to standard exercise following total knee arthroplasty (TKA). Movements that utilize body mass and gravity as a mode of eccentric resistance exercise in a more pragmatic rehabilitation paradigm may also be useful in reversing chronic muscle impairments observed years following surgery. This study explores whether an eccentrically biased, body mass resistance exercise induces greater magnitude of sagittal plane extensor angular impulse of the support torque and individual net joint torque contributions during both squatting and lunging movement patterns 6 weeks following TKA...
2018: Geriatric Orthopaedic Surgery & Rehabilitation
https://www.readbyqxmd.com/read/29588151/strength-of-the-lower-limb-and-trunk-muscles-is-associated-with-gait-speed-in-individuals-with-sub-acute-stroke-a-cross-sectional-study
#4
Larissa Tavares Aguiar, Ludimylla Brennar Alves Camargo, Lorena Dasdores Estarlino, Luci Fuscaldi Teixeira-Salmela, Christina Danielli Coelho de Morais Faria
OBJECTIVES: To investigate the association between measures of strength of the lower limb and trunk muscles and gait speed and to identify the muscle group that would best predict gait speed in individuals with sub-acute stroke. METHODS: Using a cross-sectional observational study design, forty-four individuals with sub-acute stroke (62 years, SD=14; 4 months, SD=1 post-stroke) were assessed. The evaluations were performed at a university laboratory, participants' homes, or community-based settings...
March 15, 2018: Brazilian Journal of Physical Therapy
https://www.readbyqxmd.com/read/29551259/ambulatory-capacity-in-japanese-patients-with-duchenne-muscular-dystrophy
#5
Hiroyuki Awano, Chieko Itoh, Yasuhiro Takeshima, Tomoko Lee, Masaaki Matsumoto, Akihiro Kida, Toshihiko Kaise, Takeo Suzuki, Masafumi Matsuo
INTRODUCTION: Few long-term cohort studies have addressed changes in the ambulatory capacity of patients with Duchenne muscular dystrophy (DMD), and no reports have evaluated the factors associated with ambulatory capacity in Japanese. METHODS: The longitudinal changes in 10-meter run/walk ability and associated factors were retrospectively investigated using general practice data. The factors associated with loss of this ability before the age of 10 years were explored by logistic regression analysis using parameters of genetic mutations, corticosteroid use, the manual muscle test (MMT), and the joint range of motion (ROM)...
March 15, 2018: Brain & Development
https://www.readbyqxmd.com/read/29533252/the-effects-of-a-motorized-aquatic-treadmill-exercise-program-on-muscle-strength-cardiorespiratory-fitness-and-clinical-function-in-subacute-stroke-patients-a-randomized-controlled-pilot-trial
#6
So Young Lee, Eun Young Han, Bo Ryun Kim, Sang Hee Im
OBJECTIVE: The aim of this study was to assess the effects of a motorized aquatic treadmill exercise program improve the isometric strength of the knee muscles, cardiorespiratory fitness, arterial stiffness, motor function, balance, functional outcomes and quality of life in subacute stroke patients. DESIGN: Thirty-two patients were randomly assigned to 4-week training sessions of either aquatic therapy(n=19) or land-based aerobic exercise(n=18). Isometric strength was measured using an isokinetic dynamometer...
March 12, 2018: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/29526839/metatarsophalangeal-joint-flexion-affects-dorsiflexor-activity-in-subjects-with-a-dominant-extensor-hallucis-longus
#7
Ji-Hyun Lee, Hyo-Jung Jeong, Heon-Seock Cynn, Tae-Woo Kang
BACKGROUND AND OBJECTIVES: Normal dorsiflexion (DF) required for normal gait is achieved through balance of the tibialis anterior (TA) and extensor hallucis longus (EHL). Imbalance may induce ankle and foot deformities and exacerbate pathology. EHL dominance is associated with progressive TA weakness, attributable to muscle non-use. When the EHL dominantly dorsiflexes the ankle, the big toe extends at the metatarsophalangeal joint (MTPJ) and pure ankle DF is absent. The effects of active MTPJ flexion on TA and EHL muscles, TA/EHL ratio, and the force applied during active DF in EHL-dominant (EHL-D) and EHL-non-dominant (EHL-ND) subjects were compared...
March 2, 2018: Journal of Back and Musculoskeletal Rehabilitation
https://www.readbyqxmd.com/read/29517704/injury-of-leg-somatotopy-of-corticospinal-tract-at-corona-radiata-by-ventriculoperitoneal-shunt-a-case-report
#8
Sung Ho Jang, Younghyeon Kwon
RATIONALE: A 45-year-old right-handed female patient suffered head trauma after being hit by a truck that ran into a house. PATIENT CONCERNS: The patient lost consciousness for 1 hour and experienced posttraumatic amnesia for 1 month after the accident. DIAGNOSES: She underwent conservative management for a subdural hematoma in the left frontotemporal lobes and intracerebral hematoma in the left frontal lobe. INTERVENTIONS: The patient's Glasgow Coma Scale score was 11...
March 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29472010/a-little-bit-faster-lower-extremity-joint-kinematics-and-kinetics-as-recreational-runners-achieve-faster-speeds
#9
Michael S Orendurff, Toshiki Kobayashi, Kirsten Tulchin-Francis, Ann Marie Herring Tullock, Chris Villarosa, Charles Chan, Siobhan Strike
There appears a linear relationship between small increases in running speed and cardiovascular health benefits. Encouraging or coaching recreational runners to increase their running speed to derive these health benefits might be more effective if their joint level kinematic and kinetic strategy was understood. The aim of this investigation was to compare the peak sagittal plane motions, moments, and powers of the hip, knee and ankle at 85%, 100%, 115% and 130% of self-selected running speed. Overground running data were collected in 12 recreational runners (6 women, 6 men) with a full body marker set using a 12-camera Vicon MX system with an AMTI force plate...
February 10, 2018: Journal of Biomechanics
https://www.readbyqxmd.com/read/29448160/multi-plane-multi-joint-lower-extremity-support-moments-during-a-rapid-deceleration-task-implications-for-knee-loading
#10
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
#11
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
#12
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
#13
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
#14
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...
April 2018: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/29409246/prospective-study-of-the-inside-out-arthroscopic-ankle-ligament-technique-preliminary-result
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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...
March 2018: Research Quarterly for Exercise and Sport
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