Three-dimensional kinematics of shoulder function in stroke patients: Inter- and intra-rater reliability

Hansen, Gunhild Mo; Kersting, Uwe G.; Pedersen, Asger Roer; Svendsen, Susanne Wulff; Nielsen, Jørgen Feldbæk

doi:10.1016/j.jelekin.2019.05.006

Cited by 7 publications

(9 citation statements)

References 39 publications

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“…The current study is the first to demonstrate that only 2 to 3 trials are required to reach good performance stability for most kinematic variables of the drinking task. This finding was valid both for non-disabled and for stroke participants and is in line with two previous studies analyzing pointing and reaching kinematics using optoelectronic systems [ 21 , 22 ]. Blinch et al reported that not more than 3 trials were required to achieve good within trial reliability of movement time and peak velocity during fast visually guided pointing tasks in non-disabled participants [ 21 ].…”

Section: Discussionsupporting

confidence: 92%

“…A previous study analyzing movement performance during fast pointing in non-disabled participants, demonstrated that 3 trials were required to reach good within-trial reliability for movement time and peak velocity, whereas up to 47 trials were required for trajectory metrics [ 21 ]. Another study in persons with subacute stroke, where also 3D motion capture was used, reported that 5 trials was sufficient to get reliable results for reaching kinematics [ 22 ].…”

Section: Introductionmentioning

confidence: 99%

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How many trials are needed in kinematic analysis of reach-to-grasp?—A study of the drinking task in persons with stroke and non-disabled controls

Frykberg

Grip

Murphy

2021

J NeuroEngineering Rehabil

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Background Kinematic analysis of the 3D reach-to-grasp drinking task is recommended in stroke rehabilitation research. The number of trials required to reach performance stability, as an important aspect of reliability, has not been investigated for this task. Thus, the aims of this study were to determine the number of trials needed for the drinking task to reach within-session performance stability and to investigate trends in performance over a set of trials in non-disabled people and in a sample of individuals with chronic stroke. In addition, the between-sessions test–retest reliability in persons with stroke was established. Methods The drinking task was performed at least 10 times, following a standardized protocol, in 44 non-disabled and 8 post-stroke individuals. A marker-based motion capture system registered arm and trunk movements during 5 pre-defined phases of the drinking task. Intra class correlation statistics were used to determine the number of trials needed to reach performance stability as well as to establish test–retest reliability. Systematic within-session trends over multiple trials were analyzed with a paired t-test. Results For most of the kinematic variables 2 to 3 trials were needed to reach good performance stability in both investigated groups. More trials were needed for movement times in reaching and returning phase, movement smoothness, time to peak velocity and inter-joint-coordination. A small but significant trend of improvement in movement time over multiple trials was demonstrated in the non-disabled group, but not in the stroke group. A mean of 3 trials was sufficient to reach good to excellent test–retest reliability for most of the kinematic variables in the stroke sample. Conclusions This is the first study that determines the number of trials needed for good performance stability (non-disabled and stroke) and test–retest reliability (stroke) for temporal, endpoint and angular metrics of the drinking task. For most kinematic variables, 3–5 trials are sufficient to reach good reliability. This knowledge can be used to guide future kinematic studies.

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Section: Discussionsupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

How many trials are needed in kinematic analysis of reach-to-grasp?—A study of the drinking task in persons with stroke and non-disabled controls

Frykberg

Grip

Murphy

2021

J NeuroEngineering Rehabil

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show abstract

“…The current study is the rst to demonstrate that only 2 to 3 trials are required to reach good performance stability for most kinematic variables of the drinking task. This nding was valid both for non-disabled and for stroke participants and is in line with two previous studies analyzing reaching kinematics using optoelectronic systems (21,22). Blinch et al reported that not more than 3 trials were required to achieve good within trial reliability of movement time and peak velocity during fast visually guided pointing tasks in non-disabled participants (21).…”

Section: Number Of Trials Needed To Reach Good Performance Stabilitysupporting

confidence: 90%

“…Interestingly, from an intervention study it was reported that participants in post stroke training could conduct up to 300 repetitions (3 tasks x 100 reps)/occasion, within one hour) without experiencing increased fatigue (40). The risk of fatigue in uencing motor performance after stroke has, however, been highlighted in several previous studies (12,20,22), and a planned rest in between trials has been recommended.…”

Section: Systematic Trend Over a Set Of Trialsmentioning

confidence: 99%

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How Many Trials Are Needed in Kinematic Analysis of a Reach-to-Grasp Task? - a Study in Persons With Stroke and Non-Disabled Controls

Frykberg¹,

Grip²,

Alt-Murphy³

2021

Preprint

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Background Kinematic analysis of the 3D reach-to-grasp drinking task is recommended in stroke rehabilitation research. The number of trials required to reach performance stability, as an important aspect of reliability, has not been investigated. Thus, the aims of this study were to determine the number of trials needed to reach within-session performance stability and to investigate trends in performance over a set of trials in non-disabled people and in a sample of individuals with chronic stroke. In addition, the between-sessions test-retest reliability in persons with stroke was established. MethodsThe drinking task was performed at least 10 times, following a standardized protocol, in 44 non-disabled and 8 post-stroke individuals. A marker-based motion capture system registered arm and trunk movements during 5 pre-defined phases of the drinking task. Intra class correlation statistics were used to determine the number of trials needed to reach performance stability as well as to establish test-retest reliability. Systematic within-session trends over multiple trials were analyzed with a paired t-test. Results For most of the kinematic variables 2 to 3 trials were needed to reach good performance stability in both investigated groups. More trials were needed for movement times in reaching and returning phase, movement smoothness, time to peak velocity and inter-joint-coordination. A small but significant trend of improvement in movement time over multiple trials was demonstrated in the non-disabled group, but not in the stroke group. A mean of 3 trials was sufficient to reach good to excellent test-retest reliability for most of the kinematic variables in the stroke sample. Conclusions This is the first study that determines the number of trials needed for good performance stability (non-disabled and stroke) and test-retest reliability (stroke) for temporal, endpoint and angular metrics of the drinking task. For most kinematic variables, 3 trials are sufficient to reach good reliability. This knowledge can be used to guide future kinematic studies.

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Shoulder function after constraint-induced movement therapy assessed with 3D kinematics and clinical and patient reported outcomes: A prospective cohort study

Hansen

Svendsen

Pedersen

et al. 2021

Journal of Electromyography and Kinesiology

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Three-dimensional kinematics of shoulder function in stroke patients: Inter- and intra-rater reliability

Cited by 7 publications

References 39 publications

How many trials are needed in kinematic analysis of reach-to-grasp?—A study of the drinking task in persons with stroke and non-disabled controls

How many trials are needed in kinematic analysis of reach-to-grasp?—A study of the drinking task in persons with stroke and non-disabled controls

How Many Trials Are Needed in Kinematic Analysis of a Reach-to-Grasp Task? - a Study in Persons With Stroke and Non-Disabled Controls

Shoulder function after constraint-induced movement therapy assessed with 3D kinematics and clinical and patient reported outcomes: A prospective cohort study

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