Kinematic and dynamic analysis of a sit-ski to improve vibrational comfort

Cavacece, Massimo; Smarrini, F.; Valentini, Pier Paolo; Vita, L.

doi:10.1007/bf02844128

Cited by 9 publications

(4 citation statements)

References 2 publications

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“…However, there is a lack of evidence regarding the outcomes of snow sports for people with disabilities, thereby making it difficult for these sports to be recommended by therapists and healthcare professionals. Sit-skiing has become a Paralympic sport; [10][11][12][13][14][15][16][17][18][19] however, related literature has focused on the physical aspects of the individuals and the benefits it provides [13][14][15][16][17]. Although aspects such as kinematics [13,15], fitness [14,16], biomechanics [17,18], and positioning [19] in sit-skiing have been addressed, studies including QoL or the level of satisfaction with the sit-ski is limited.…”

Section: Introductionmentioning

confidence: 99%

“…Sit-skiing has become a Paralympic sport; [10][11][12][13][14][15][16][17][18][19] however, related literature has focused on the physical aspects of the individuals and the benefits it provides [13][14][15][16][17]. Although aspects such as kinematics [13,15], fitness [14,16], biomechanics [17,18], and positioning [19] in sit-skiing have been addressed, studies including QoL or the level of satisfaction with the sit-ski is limited. We consider it important to identify if there are other benefits from sit-skiing; therefore, our study was performed to explore other aspects of sit-skiing such as satisfaction with the device, QoL, and fear of falling in tetraplegic or paraplegic individuals who used the mono-ski for sit-skiing.…”

Section: Introductionmentioning

confidence: 99%

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Quality of life, concern of falling and satisfaction of the sit-ski aid in sit-skiers with spinal cord injury: observational study

Ponti

Berardi

Marchegiani

et al. 2020

Spinal Cord Ser Cases

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Study design Observational study. Objective To describe (1) user satisfaction, (2) the Quality of Life (QoL) and (3) fear of falling in individuals with tetraplegia or paraplegia who used a mono-ski for sit-skiing. Setting Spinal units and Sport associations. Methods An observational study of people with spinal cord injury (SCI) who used a sit-ski. Participants were recruited in various SCI rehabilitation centers and sport associations. Participants completed three assessment tools: the Quebec User Evaluation of Satisfaction with assistive Technology (QUEST 2.0); the World Health Organization Quality of Life (WHOQoL-BREF); the Spinal Cord Injury Fall Concern Scale (SCI-FCS). Results were evaluated with chi-squared test and Kolmogorov-Smirnov's test and the significance was set for p values < 0.05. Results Fifteen participants were included. Results showed positive and statistically significant values for all the items of the SCI-FCS related to fear of falling, and for most of the items of the WHOQoL-BREF related to QoL and the QUEST 2.0 related to satisfaction with the device. Conclusions This study highlights that sit skiing is correlated with high levels of satisfaction with the mono-ski, increases in QoL, and low levels of fear of falling. In adding these findings to the existent literature, it can be stated with more certainty that sit-skiing is a sport that can be recommended in rehabilitation and sports therapy programs.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Quality of life, concern of falling and satisfaction of the sit-ski aid in sit-skiers with spinal cord injury: observational study

Ponti

Berardi

Marchegiani

et al. 2020

Spinal Cord Ser Cases

View full text Add to dashboard Cite

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“…In dirty environments typical of off-highway machines, hinges are widely preferable than sliders thanks to their intrinsic reliability, lower wear and absence of lubrication, easiest manufacturing, and assembly. The present work does not consider any dynamic analysis and control of the suspension but only a kinematic analysis; the reader interested in those topics can refer to the specific literature [34,35].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and optimization of an eight-bar linkage mechanism for seat suspensions

Spaggiari

Cocconcelli

Castagnetti

et al. 2022

J Braz. Soc. Mech. Sci. Eng.

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The work presents the analysis and synthesis of an eight-link mechanism for industrial seat suspension, followed by a numerical optimization of the design under specific technical requirements. Even though the eight-bar linkage mechanism is a well-known architecture, it has few applications in seat suspensions, and it shows interesting features compared with more traditional scissor systems. It is possible to exploit this mechanism, provided that is correctly designed, to achieve a seat suspension system, which grants a large quasi-perfect vertical motion, without the need of prismatic couplers, which are often a weak point in off-highway application due to their maintenance issues and cost. Firstly, the problem was tackled analytically in order to obtain the general set of equations and verified numerically with a multibody solver. Secondly, to choose the best solution for the application, we carried out an optimization of the system, aimed at minimizing the horizontal displacement of the seat along with granting the desired vertical travel needed. The results are both a general design procedure to optimize under specific constraints the eight-bar linkage for seat suspensions problems and a detailed design and possible embodiment of a seat suspension systems with application in the agricultural field.

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“…Titanium is providing benefits for Paralympic athletes, wheel chair [18] and disabled sports [19]. It is showing strongly for amputees limb replacement ( Figure 1a) as well as orthopedic inserts [20] where is considered to improve osseointegration and reduction/elimination of micro-motion causing damage [21].…”

Section: Introductionmentioning

confidence: 99%

The Use of Particulate Injection Moulding for Fabrication of Sports and Leisure Equipment from Titanium Metals

Ewart

2018

The 12th Conference of the International Sports Engineering Association

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Advanced materials such as metal alloys, carbon fibre composites and engineered polymers have improved athlete performances in all sporting applications. Advances in manufacturing has enabled increases in design complexity and the ability to rapidly prototype bespoke products using additive manufacturing also known as 3D printing. Another recent fabrication method widely used by medical, electronics and armaments manufacturers is particulate injection moulding. This process uses exact quantities of the required material, in powder form, minimising resource and energy requirements in comparison to conventional manufacturing techniques. The process utilises injection moulding techniques and tooling methods developed and used in the plastics industry. It can produce highly complex component geometries with excellent repeatability and reduced cost where volume manufacturing is required. This is especially important when considering materials such as titanium that are not only expensive in comparison to other metals but are difficult to process by regular machining and fabrication methods. This work presents a review of titanium use in the sporting sector with a focus on sporting devices and equipment. It also proposes that the sports engineering sector could increase performance and enable improvements in safety by switching to design methods appropriate to processing via the particulate injection moulding route.

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Kinematic and dynamic analysis of a sit-ski to improve vibrational comfort

Cited by 9 publications

References 2 publications

Quality of life, concern of falling and satisfaction of the sit-ski aid in sit-skiers with spinal cord injury: observational study

Quality of life, concern of falling and satisfaction of the sit-ski aid in sit-skiers with spinal cord injury: observational study

Synthesis and optimization of an eight-bar linkage mechanism for seat suspensions

The Use of Particulate Injection Moulding for Fabrication of Sports and Leisure Equipment from Titanium Metals

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