Background: Foot orthoses have been considered to affect static and dynamic functional capacity and could help older adults maintain balance while walking. However, the impact of textured foot orthoses over co-contraction strategies remains uncertain. Therefore, this study aimed to assess the effect of different textured foot orthoses on ankle and knee joint muscle co-contraction in male and female older adults during walking.
View Article and Find Full Text PDFKnee
October 2024
Background: A deficit in neuromuscular trunk control can impact the lower limb motion, predisposing runners to injuries. This deficit may show a greater impact on runners with dynamic knee valgus. This study aimed to compare the effect of core fatigue on kinetic, kinematic, and electromyographic parameters of the trunk and lower limbs during single-leg drop landing between runners with and without dynamic knee valgus.
View Article and Find Full Text PDFObjective: Understanding how the main scapular muscles behave in overhead athletes with scapular dyskinesis (SD).
Design: Systematic Review.
Setting: Electronic searches were performed in Pubmed (MedLine), Embase, CINAHL, and SPORTDiscus databases.
Background: Overpronated feet are associated with alteration of lower limb mechanics. Also, quantifying ground reaction force-related changes due to exercise on different surfaces is important for understanding the potential risk of injuries.
Research Question: What are the long-term effects of running exercises on natural grass, artificial turf, and synthetic surfaces on ground reaction force components in individuals with overpronated feet?
Methods: Of 82 contacted individuals with overpronated feet aged 18-30, 22 were excluded because they did not meet inclusion criteria (20), and two declined to participate.
Background: Although the effects of footwear type on joint stiffness have previously been investigated, researchers did not consider foot flexibility. Thus, the present investigation aimed to determine the interaction effects of footwear type, static navicular drop and dynamic ankle pronation on dynamic joint stiffness in running.
Research Question: Does the footwear types in interaction with the foot posture affect the stiffness of the joints of the lower limb?
Methods: Forty-seven male individuals participated in this study.
Objectives: Single-leg (SL) tasks are included as assessment and intervention strategies in several dysfunctions due to the inherent motor control requirement. The recruitment of gluteus maximus (GMAX) and medius (GMED) muscles is essential for proper biomechanical control of the knee and hip joints. The study aims to identify the role of gluteal activation in the biomechanical control of the lower limb during SL tasks.
View Article and Find Full Text PDFThis study verified whether the level of gluteal activation during a controlled maximum voluntary contraction may discriminate functional performance in women. Forty-five moderately trained women were assigned to two groups based on the level of gluteal muscle activation on maximum voluntary isometric contraction (MVIC) tests in the dominant limb: higher gluteal activation (HG-n = 22) and lower gluteal activation (LG-n = 22), considering different situations: a) level of activation of the gluteus medius muscle (GMed), b) level of activation of the gluteus maximus muscle (GMax), and c) level of combined activation of the GMed and GMax muscles. The cut-off values for the allocation of participants to groups in each situation were established as a function of the median values of each data set.
View Article and Find Full Text PDFBackground: Running on sand could be a promising exercise intervention for the treatment of over-pronated feet. However, there is a lack of knowledge about the effects of running on sand on muscle activities. Therefore, this study aims to evaluate the long-term effects of running on sand on the activities of selected lower limb muscles in individuals with OPF compared with healthy controls.
View Article and Find Full Text PDFBackground And Purpose: The manipulation of sensory conditions and attentional demand affect the postural sway in older adults with knee osteoarthritis (KOA). However, it is not known if emotional and sensitization status affects postural sway in this population. This study aimed to test if older adults with mild and moderate knee osteoarthritis with symptoms of depression and high sensitization would change the profile of postural sway.
View Article and Find Full Text PDFGait Posture
October 2021
Background: Anterior cruciate ligament reconstruction provides successful clinical outcomes. However, reconstruction cannot restore normative lower limb mechanics during running. While numerous studies have investigated running characteristics in individuals with anterior cruciate ligament reconstruction, no study has been compared foot strike patterns among them.
View Article and Find Full Text PDFBackground: Parkinson's disease (PD) is a neurological disease that affects the motor system. The associated motor symptoms are muscle rigidity or stiffness, bradykinesia, tremors, and gait disturbances. The correct diagnosis, especially in the initial stages, is fundamental to the life quality of the individual with PD.
View Article and Find Full Text PDFUnlabelled: Backgroud: The single-leg squat (SLS) is a functional task to evaluate the abnormal movement patterns and potential neuromuscular deficits in the lower limbs. Still, it is unknown if SLS could provide information to older adults with knee osteoarthritis (KOA). The study's objective was to analyze the EMG pattern, kinematics, and postural control in individuals with and without KOA during SLS.
View Article and Find Full Text PDFBMC Musculoskelet Disord
January 2021
Background: The effect of hyperalgesia on functionality remains uncertain for individuals with knee osteoarthritis (KOA). This study aimed examine the clinical measures and hyperalgesia's effect on muscle activity, knee range of motion (ROM) and postural control during the single-leg mini squat (SLMS) in individuals with KOA, determining the correlation between variables.
Methods: In this cross-sectional study, 60 individuals, 30 healthy (HG, 57.
Background: This double-blinded randomized-controlled-trial aimed to identify the effects of an elastic band resistance training on walking kinetics and muscle activities in young adults with genu valgus.
Methods: Forty-two male young adults aged 22.5(2.
Objective: To evaluate the short-term effects of Mulligan's mobilization with movement (MWM) on pain, physical function, emotional aspects, and proprioceptive acuity after a 2-week treatment period and throughout a 3-week follow-up period.
Methods: A single group of 30 participants (60.96 ± 5.
Detecting coordination pattern and coordination variability help us to find how joints organize collaboratively to perform sit-to-stand (STS) under restricted visual input. This experiment aimed to compare the coordination of the trunk, hip, knee, and ankle and its variability between individuals with long- and short-term restricted visual input during STS. Forty-five female children participated in this study, including fifteen congenitally blind (CB) children and 30 healthy children.
View Article and Find Full Text PDFBackground: The anticipatory postural adjustments required for gait initiation have not yet been investigated in older adults with different levels of severity of knee osteoarthritis. This study aimed to evaluate the anticipatory postural adjustments adopted by older adults with different severity levels of knee osteoarthritis during gait initiation.
Methods: Sixty-seven older adults with knee osteoarthritis (mild, moderate, and severe levels) and 11 healthy older adults control were evaluated bilaterally with a force plate to analyze gait initiation.
Background: Low back pain is among the most common health problems seen in primary care. This study aimed to evaluate the effect of a corrective exercise program on GRF components, back pain, disability score, and muscle activities in back pain patients with pronated feet during walking.
Research Question: What is the effect of corrective exercise program on gait kinetics, back pain, disability score, and muscle activities in back pain patients with pronated feet during walking?
Methods: Thirty-six older adults with both back pain and pronated feet volunteered to participate in this study.
Introduction And Hypothesis: To date, no study has investigated the correlation between pelvic floor muscle function and urinary incontinence in female runners. The aim of the study was to investigate the relationship between pelvic floor muscle function and to correlate urinary leakage as measured by the modified pad test with kinematic variables of running.
Methods: The sample consisted of 11 incontinent and 17 continent runners.
Background: The relationship between the visual sensory and center-of-mass characteristics during the sit-to-stand task is not well documented. Do the center of mass strategies change with restricted vision during the sit-to-stand task?
Methods: The participants in this study were fifteen girls with congenital blindness (age (94.6 (5.
J Man Manip Ther
August 2018
The study aim was to evaluate the immediate effect of rhythmic stabilization on local and distant muscles involved in a functional reach. Prospective, observational cross-sectional study. Eight right-handed and non-impaired individuals (4 females and 4 males) aged 18-24 years (21.
View Article and Find Full Text PDFBackground: Forces can be applied to people while they are walking on a treadmill in different ways that aid individuals to walk at faster walking speeds with potentially less effort. Forward-directed aiding forces (FAF) are a special class of aiding forces where "push" or "pull" forces are mechanically applied to the person's pelvis in the forward direction.
Objective: To determine if FAF, applied by a robotic interface, can be effective in providing assistance to walk at a faster walking speed with reduced kinetic requirements.
Background: Collaborative robots are used in rehabilitation and are designed to interact with the client so as to provide the ability to assist walking therapeutically. One such device is the KineAssist which was designed to interact, either in a self-driven mode (SDM) or in an assist mode (AM), with neurologically-impaired individuals while they are walking on a treadmill surface. To understand the level of transparency (i.
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