Changes in Muscle Activity Patterns and Joint Kinematics During Gait in Hemophilic Arthropathy

Cruz‐Montecinos, Carlos; Pérez‐Alenda, Sofía; Querol, Felipe; Cerda, Mauricio; Maas, Huub

doi:10.3389/fphys.2019.01575

Cited by 14 publications

(15 citation statements)

References 104 publications

(147 reference statements)

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“…36 Increased sway balance in the V axis, which was observed in PWHA, may explained by impairments of proprioception and knee extensor force in these individuals [1,2], as well as altered coordination that occurs between knee extensors and flexors. 30,31 Regarding to complexity of postural control, we observed reduced values in PWHA exclusively in the V axis in comparison to HAG and HNAG. This suggests that PWHA require increased levels of attention to maintain the angular knee configurations, which may be due to impairments in knee muscle control.…”

Section: Discussionmentioning

confidence: 78%

“…Also, the value can be used to predict multiple falls in elderly individuals . Increased sway balance in the V axis, which was observed in PWHA, may explained by impairments of proprioception and knee extensor force in these individuals [1, 2], as well as altered coordination that occurs between knee extensors and flexors …”

Section: Discussionmentioning

confidence: 99%

“…The most affected leg assessed by HJHS was used for the one‐leg stance test in PWHA, while the dominant leg of each healthy individual was used. The dominant leg was determined by asking subjects which leg they preferred using to kick a ball …”

Section: Methodsmentioning

confidence: 99%

“…The dominant leg was determined by asking subjects which leg they preferred using to kick a ball. 30,31 For the one-leg stance test, subjects stood one metre from the wall, with their vision focused on a 3 × 3 cm mark that was placed on the wall at eye-level. Then, participants were instructed to stand on one leg with a straight knee by lifting their opposite foot for 30 seconds with their arms crossed at the chest and eyes open.…”

Section: One-leg Stance Testmentioning

confidence: 99%

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Effects of performing dual tasks on postural sway and postural control complexity in people with haemophilic arthropathy

et al. 2020

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Introduction: People with haemophilic arthropathy (PWHA) have impairments in postural control. However, little is known about the effects of demanding conditions, including the unipedal stance and dual tasks, on postural control in PWHA. Aim: Determine the effects of performing dual tasks while in the one-leg stance on postural sway and postural control complexity in PWHA vs. healthy active (HAG) and non-active (HNAG) groups of individuals. Methods: Fifteen PWHA and 34 healthy subjects (18 active and 16 non-active) were recruited. Vertical (V), mediolateral (ML) and anteroposterior (AP) centre of mass signals were acquired using a 3-axis accelerometer placed at the L3/L4 vertebrae of subjects as they performed the one-leg stance under single and dual-task conditions. Sway balance and the complexity of postural control were studied via root mean square (RMS) acceleration and sample entropy, respectively. Increased complexity of postural sway was attributed to increased automatism of postural control.Results: RMS values for PWHA were higher than HAG under both conditions for the V and ML axes, and higher than HNAG under the dual-task condition for the ML axis.Sample entropy was lower in PWHA than healthy individuals under the dual-task condition for V and ML axes, and the single-task condition for the ML axis (P < .05). Conclusion:PWHA had poorer postural sway and decreased postural control complexity when performing a one-leg stance than healthy people, especially when the dual-task condition was applied. These results may help to design new approaches to assess and improve postural control in PWHA. K E Y W O R D Saccelerometry, centre of mass, haemophilia, motor control, postural control, sample entropy

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Section: Discussionmentioning

confidence: 78%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: One-leg Stance Testmentioning

confidence: 99%

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Effects of performing dual tasks on postural sway and postural control complexity in people with haemophilic arthropathy

et al. 2020

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“…In case a disorder of the musculoskeletal system is the primary cause, the central nervous system may also be affected. Such secondary adaptations may lead to altered neuromuscular control during gait, for example, an increased coactivation between antagonistic muscles (23)(24)(25)(26). Recently, a temporary immobilization of rat hindlimbs (16 h a day for 28 days) during development was found to cause not only a chronic restriction of joint ROM during locomotion, but also a persistent spinal hyperreflexia and changes in topographical organization of the sensorimotor cortex (27,28).…”

Section: Introductionmentioning

confidence: 99%

Modular reorganization of gait in chronic but not in artificial knee joint constraint

Cruz‐Montecinos

Pérez‐Alenda

Cerda

et al. 2021

Journal of Neurophysiology

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It is currently unknown if modular reorganization does occur if not the central nervous system, but the musculoskeletal system is affected. The aims of this study were to investigate (I) the effects of an artificial knee joint constraint on the modular organization of gait in healthy subjects; (II) the differences in modular organization between healthy subjects with an artificial knee joint constraint and people with a similar but chronic knee joint constraint. Eleven healthy subjects and eight people with a chronic knee joint constraint walked overground at 1 m/s. The healthy subjects also walked with a constraint limiting knee joint movement to 20°. The total variance accounted (tVAF) for one to four synergies and modular organization were assessed using surface electromyography from eleven leg muscles. The distribution of number of synergies were not significantly different between groups. The tVAF and the motor modules were not significantly affected by the artificial knee constraint. A higher tVAF for one and two synergies, as well as merging of motor modules were observed in the chronic knee constraint group. We conclude that in the short-term a knee constraint does not affect the modular organization of gait, but in the long-term a knee constraint results in modular reorganization. These results indicate that merging of motor modules may also occur when changes in the mechanics of the musculoskeletal system is the primary cause of the motor impairment.

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Multi-modal gait: A wearable, algorithm and data fusion approach for clinical and free-living assessment

et al. 2022

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Changes in Muscle Activity Patterns and Joint Kinematics During Gait in Hemophilic Arthropathy

Cited by 14 publications

References 104 publications

Effects of performing dual tasks on postural sway and postural control complexity in people with haemophilic arthropathy

Effects of performing dual tasks on postural sway and postural control complexity in people with haemophilic arthropathy

Modular reorganization of gait in chronic but not in artificial knee joint constraint

Multi-modal gait: A wearable, algorithm and data fusion approach for clinical and free-living assessment

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