Reaching-lifting-placing task during standing after stroke: Coordination among ground forces, ankle muscle activity, and hand movement

Kusoffsky, Ann; Apel, Ingmarie; Hirschfeld, Helga

doi:10.1053/apmr.2001.22611

Cited by 42 publications

(25 citation statements)

References 37 publications

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“…In this case study of an older adult stroke survivor, burst and gap activity in the unaffected limb did not differ from the similarly aged and active older adults without impairments due to stroke. Laboratory studies have suggested that adaptations in functional use occur in the unaffected side as a consequence of stroke and that postural and lower body muscle activation patterns in stroke survivors change when focal-/goal-directed upper limb movement is undertaken [6,7,15] . Also, gait vari-ables between chronic stroke persons living in the community compared with age-matched healthy controls differ with the concurrent performance of upper body tasks [16] .…”

Section: Discussionmentioning

confidence: 99%

“…Subsequent to stroke, there is a residual loss of upper and/or lower extremity physical function that reduces physical mobility, unrelated to natural physiological aging. Although the mechanical and physiological mechanisms of physical impairment subsequent to stroke are well quantified [3][4][5][6][7] and age-related functional alterations of muscle activity have been examined for a variety of tasks [8,9] , no investigations have quantified muscle activity during routine daily life of older adults who survived stroke. A recent study from this laboratory utilizing portable electromyography (EMG) devices has quantified patterns of muscle activity during discrete functional tasks [9] and provided the foundation for measuring EMG burst and gap patterns during daily activity.…”

Section: Introductionmentioning

confidence: 99%

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Utility of Portable Electromyography for Quantifying Muscle Activity during Daily Use

Jakobi

Edwards²,

Connelly

2008

Gerontology

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Background: Mobility has been studied using performance, questionnaire, pedometer and accelerometer measures, but these tools do not provide information about muscle activity. To better understand mechanisms associated with movement impairment as they relate to function, it is valuable to quantify muscle activity during everyday activities. Objective: This report presents electromyography (EMG) during daily activities from the affected and unaffected limbs of a 74-year-old man who survived a stroke 12 years ago, compared to 7 older healthy men who had not experienced a stroke. Methods: The biceps brachii, triceps brachii, quadriceps and hamstring muscles were recorded continuously for one 8-hour session in the unaffected limbs of the stroke survivor and control subjects. On a second day, EMG from these same muscles of the affected side was recorded for 4 h. Bursts (amplitude >2% maximum effort, duration >0.1 s) and gaps (amplitude <1% maximum effort, duration >0.1 s) of EMG were quantified for the number of times they occurred, mean event duration (seconds), mean peak amplitude (percent maximum voluntary efforts) and rate of activity (event activity/second). Results: Burst and gap patterns of the unaffected limb muscles were similar between the stroke survivor and controls. Increased numbers of bursts (approx. 40%) and gaps (approx. 44%) were seen in the subject’s lower limb muscles of his affected versus unaffected side. Biceps brachii burst activity of the affected limb was increased, whereas triceps brachii burst activity was decreased. These muscle activity changes in the affected limb suggest that the triceps brachii was relatively inactive and the biceps brachii and lower limb muscles were active in an ‘on’ and ‘off’ pattern. Conclusion: Muscle activity in the unaffected limb of the stroke survivor was similar compared to control subjects, but the affected limb differed from the unaffected after stroke. Portable EMG to monitor muscle activity for prolonged periods was not reported to be an impediment by the case or control subjects. Using this technology, EMG bursts and gaps can be recorded and used to describe muscle activity. Future work may consider the feasibility of this technique to monitor rehabilitation progression or long-term plasticity of muscle activity.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Utility of Portable Electromyography for Quantifying Muscle Activity during Daily Use

Jakobi

Edwards²,

Connelly

2008

Gerontology

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“…What patients desire most among the limitations of activities of daily living (ADL) is improvement in walking ability (Rosen et al, 2005), since it is necessary for daily life and social participation (Macko et al, 2008). Balance ability is an important factor for independent walking in stroke patients (Kusoffsky et al, 2001), as previous studies on walking intervention in stroke have in stroke have reported (Mentiplay et al, 2015;Rodrigues-Baroni et al, 2014). Various walking intervention protocols based on balance ability have been designed and evaluated (Park and Hwangbo, 2015).…”

Section: ⅰ Introductionmentioning

confidence: 99%

Effects of Pressure Sense Perception Training on Unstable Surface on Somatosensory, Balance and Gait Function in Patients with Stroke

Kim¹,

Bang²,

Shin³

2015

Journal of the Korean Society of Physical Medicine

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“…Kusoffsky et al 10) reported that holding an object while standing up from a sitting position affected anticipatory postural control in body adjustment. Gergory et al 11) studied changes in gait in stroke patients after training of dual-motor task training that required concentrating of the postural task of walking while moving a dish or a cup.…”

Section: Introductionmentioning

confidence: 99%

The Effects of Dual-Motor Task Training on the Gait Ability of Chronic Stroke Patients

2013

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Abstract. [Purpose] This study examined the effects of consecutive training in dual motor tasks on the gait ability of chronic stroke patients. [Subjects and Methods] Conservative physical therapy was conducted for 29 subjects divided into two groups. The dual-motor task group was also taught a basic motor task and additional motor tasks, whereas the single-motor task training group was taught consecutive single motor tasks. Both groups performed their programs five times a week for 30 minutes over a period of four weeks. For performance measurements, timebased gait variables and space-based gait variables were measured using GAITRite.[Results] The dual-motor task group exhibited statistically significant improvement in the temporal variables of cadence, gait velocity, step time, and cycle time, as well as in the spatial gait variables of step length and stride length. The single-motor task group exhibited significant improvements in cadence, gait velocity. Moreover, according to the comparison of training effects between in the two groups, the temporal gait variables of gait velocity and cycle time and the spatial gait variable of stride length revealed a statistically significant difference. [Conclusions] Compared to the single-motor task training, the dual-motor task training of stroke patients was more effective at improving gait ability

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Reaching-lifting-placing task during standing after stroke: Coordination among ground forces, ankle muscle activity, and hand movement

Cited by 42 publications

References 37 publications

Utility of Portable Electromyography for Quantifying Muscle Activity during Daily Use

Utility of Portable Electromyography for Quantifying Muscle Activity during Daily Use

Effects of Pressure Sense Perception Training on Unstable Surface on Somatosensory, Balance and Gait Function in Patients with Stroke

The Effects of Dual-Motor Task Training on the Gait Ability of Chronic Stroke Patients

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