The Effect of Wave Motion Intensities on Performance in a Simulated Search and Rescue Task and the Concurrent Demands of Maintaining Balance

Duncan, Carolyn A.; Bishop, Nicole; Komisar, Vicki; MacKinnon, Scott; Byrne, Jeannette M.

doi:10.1177/0018720820952907

Cited by 4 publications

(2 citation statements)

References 32 publications

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“…However, especially during bad weather, the conditions at sea itself will probably influence BLS performance as well. This is supported by a recent study by Duncan et al that demonstrated the negative effects of simulated wave motions on search and rescue tasks and maintaining balance (28). Although BLS performance was not tested in their study, rough seas might also affect BLS performance.…”

Section: Discussionsupporting

confidence: 62%

Performance of Basic Life Support by Lifeboat Crewmembers While Wearing a Survival Suit and Life Vest: A Randomized Controlled Trial

Venema

Sahinovic

Ramaker

et al. 2021

Front. Public Health

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Introduction: Crewmembers of the “Royal Netherlands Sea Rescue Institution” (KNRM) lifeboats must wear heavy survival suits with integrated lifejackets. This and the challenging environment onboard (boat movements, limited space) might influence Basic Life Support (BLS) performance. The primary objective of this study was to assess the impact of the protective gear on single-rescuer BLS-quality.Material and Methods: Sixty-five active KNRM crewmembers who had recently undergone a BLS-refresher course were randomized to wear either their protective gear (n = 32) or their civilian clothes (n = 33; control group) and performed five 2-min sessions of single rescuer BLS on a mannequin on dry land. BLS-quality was assessed according to Dutch and European Resuscitation guidelines. A between group analysis (Mann-Whitney U) and a repeated within group analysis of both groups (Friedman test) were performed.Results: There were no major demographic differences between the groups. The protective gear did not significant impair BLS-quality. It was also not associated with a significant increase in the perceived exertion of BLS (Borg's Rating scale). Compression depth, compression frequency, the percentage of correct compression depth and of not leaning on the thorax, and ventilation volumes in both groups were suboptimal when evaluated according to the BLS-guidelines.Conclusions: The protective gear worn by KNRM lifeboat-crewmembers does not have a significant influence on BLS-quality under controlled study conditions. The impact and significance on outcome in real life situations needs to be studied further. This study provides valuable input for optimizing the BLS-skills of lifeboat crewmembers.

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Section: Discussionsupporting

confidence: 62%

Performance of Basic Life Support by Lifeboat Crewmembers While Wearing a Survival Suit and Life Vest: A Randomized Controlled Trial

Venema

Sahinovic

Ramaker

et al. 2021

Front. Public Health

View full text Add to dashboard Cite

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“…A decline in human performance as motion perturbations increase is well documented in the literature, but results vary by the task. Studies have shown comparable results in a variety of tasks ranging from seated, micro motor tasks (Malone, 1977) to standing, manual material handling tasks (Duncan et al, 2012; McCleod et al, 1980), to cognitive tasks such as visual search (Duncan et al, 2020). These studies reflect a between-task variability in both task performance and MII occurrence within motion profiles.…”

Section: Discussionmentioning

confidence: 99%

Small Boat Recovery Task Performance in a Moving Environment

Fosha¹,

Matsangas

Cravalho

et al. 2022

Hum Factors

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Objective Assess operator performance in a simulation of US Coast Guard small boat recovery to a larger vessel on a large scale, six degree-of-freedom, full motion simulator. Background Studies of human performance in small boat recovery task have never been conducted on a high amplitude, low frequency simulator. Empirical evidence of small boat recovery task performance in challenging motion conditions is needed to inform future maritime systems designs. Method Experienced active-duty boat crewmembers ( N = 13) conducted a small boat recovery task in three sea states on the Vertical Motion Simulator (VMS) at the NASA Ames Research Center. Task performance was assessed using a task equivalent for time to complete the task. Participant behaviors associated with increasing motion severity were observed. Results Task performance declined as motion conditions became more severe. Participants were more likely to use at least one hand to maintain balance during motion conditions, becoming more frequent with increasing motion severity. Many participants used one hand to complete the task despite contrary instructions and previous experience. Conclusion Two design recommendations were proposed to counter declining task performance in increasingly severe motion conditions. Handholds available to participants during the task, and task design supporting single handed completion were recommended for small boat recovery systems. Application This research is directly applicable to gross motor tasks requiring simultaneous maintenance of balance in a maritime environment, and may be extended to other environments where humans experience complex motions while completing tasks.

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Perception of Length and Direction in Wave Motion

Lyakhovetsky,

Skotnikova,

Karpinskaya

2024

Experimental Psychology (Russia)

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<p>It is known that changes in the functioning of the vestibular system affect visual perception. We studied the effect of gravitoinertial impact on the sensorimotor assessment of the length and direction of segments of different orientations by the leading hand before and during the wave motion (n = 6) in comparison with the control group (n = 22). At the memorization stage, the subjects moved their leading hand along a visible segment located at different angles to the horizontal on the center of the touchscreen, and at the reproduction stage they repeated this movement in the same place on an empty screen. In both groups, when memorizing, the error in estimating the length and direction of segments was small and had no pronounced dynamics; during reproduction, a motor oblique effect was obtained, that is repulsion of segments of oblique directions from the canonical axes, vertical and horizontal. During wave motion, the length of the segment began to be estimated less accurately (movements became more hypermetric). This error pattern supports the vector encoding hypothesis, in which the direction and length of the planned movement are encoded independently of each other. Moreover, the gravitoinertial effect selectively affects the accuracy of length coding, and not the coding of the direction of movement of the leading hand.</p>

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The Effect of Wave Motion Intensities on Performance in a Simulated Search and Rescue Task and the Concurrent Demands of Maintaining Balance

Cited by 4 publications

References 32 publications

Performance of Basic Life Support by Lifeboat Crewmembers While Wearing a Survival Suit and Life Vest: A Randomized Controlled Trial

Performance of Basic Life Support by Lifeboat Crewmembers While Wearing a Survival Suit and Life Vest: A Randomized Controlled Trial

Small Boat Recovery Task Performance in a Moving Environment

Perception of Length and Direction in Wave Motion

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