Exploring how anthropometric, vehicle and workplace factors influence whole-body vibration exposures during on-farm use of a quad bike
Milosavljevic, S.; Mani, R.; Ribeiro, D. C.; Vasiljev, R.; Rehn, B. (2012). International Journal of Industrial Ergonomics, 42, 392-396
The primary aim of this study is to determine whether a combination of body height, terrain and vehicle mechanical... more The primary aim of this study is to determine whether a combination of body height, terrain and vehicle mechanical factors confound for the effect of body mass on WBV exposure while using a quad bike under normal rural working conditions. A seat pad mounted triaxial accelerometer and data logger recorded full work day vibration and shock data from 130 New Zealand rural workers. Personal, vehicle and workplace characteristics were gathered using a modified version of the Whole Body Vibration Health Surveillance Questionnaire. Whole-body vibrations were analysed in accordance with the ISO 2631-1 and ISO 2631-5 standards and it is presented as one hour vibration dose value in the Z-direction (1 h VDVZ). Body mass did not demonstrate any significant bivariate association (P > 0.20) with 1 h VDVZ. However BMI, body height, vehicle weight, sheep farm, dairy farm, 2 shock absorber solid axle rear suspension, flat farmland and engine capacity (cc) all demonstrated threshold bivariate associations (P _ 0.20) with 1 h VDVZ. Body mass, body height, 2 shock absorber solid rear axle suspension, and working on a sheep farm created the strongest multiple regression model explaining 16% of variance in VDVZ. Relevance to industry: The influence of driver’s body mass on vibration exposure is strongly influenced by work environment and vehicle mechanical factors and this should be taken in to consideration for research that explores exposures and/or designing seating and suspension systems to attenuate vibration exposures in small on-farm vehicles.
Dose-response relationship between work-related cumulative postural exposure and low back pain: A systematic review.
RIBEIRO, D. C. ; ALDABE, Daniela ; ABBOTT, J.H. ; SOLE, G. ; MILOSAVLJEVIC, S. Annals of Occupational Hygiene (Online), in press, 2012
OBJECTIVES:
To assess the evidence for a dose-response relationship between ROM, duration, and frequency of... more
OBJECTIVES:
To assess the evidence for a dose-response relationship between ROM, duration, and frequency of trunk flexion, and risk of occupational LBP.
METHODS:
An electronic systematic search was conducted using Medline, Cumulative Index to Nursing and Allied Health Literature, EMBASE, and Scopus databases focusing on cohort and case-control studies. Studies were included if they focused on non-specific LBP and postural exposure, considering ROM, duration, or frequency of trunk flexion as independent variables. No language restriction was imposed. Included studies were assessed for risk of bias using the Newcastle-Ottawa Scale for observational studies and a summary of evidence is presented.
RESULTS:
Eight studies were included and all were methodologically rated as high quality. The included studies yielded a total of 7023 subjects who were considered for risk analysis. Different outcome measures for postural exposure were adopted making meta-analysis difficult to perform.
CONCLUSIONS:
We could not find a clear dose-response relationship for work posture exposures and LBP. Limited evidence was found for ROM and duration of sustained flexed posture as risk factor for LBP. We found no evidence for frequency of trunk flexion as a risk factor for LBP.
Pregnancy-related pelvic girdle pain and its relationship with relaxin levels during pregnancy: a systematic review
Daniela Aldabe, Daniel Cury Ribeiro, Stephan Milosavljevic and Melanie Dawn Bussey. (2012) Pregnancy-related pelvic girdle pain and its relationship with relaxin levels during pregnancy: a systematic review. European Spine Journal , in press
Purpose
The present systematic review assessed the level of evidence for the association between relaxin... more
Purpose
The present systematic review assessed the level of evidence for the association between relaxin levels and pregnancy-related pelvic girdle pain (PPGP) during pregnancy.
Methods
PRISMA guidelines were followed to conduct this systematic review. Electronic search was carried out using six different databases. Observational cohorts, cross-sectional or case–control studies focused on the association between relaxin levels and PPGP during pregnancy were included. Studies selection was conducted by two reviewers who screened firstly for titles, then for abstracts and finally for full articles. Risk of bias was assessed using the Newcastle–Ottawa scale and the quality of evidence by the guidelines proposed by the Cochrane back review group.
Results
731 references were identified. Six articles met the inclusion criteria and were considered for this systematic review. The main reason for the studies exclusion was PPGP related to gynaecological reasons. Five studies were case–control and one study was a prospective cohort. Four studies were ranked as high while two were ranked as low quality. Among the high quality studies, three found no association between PPGP and relaxin levels.
Conclusions
Based on these findings, the level of evidence for the association between PPGP and relaxin levels was found to be low. PPGP assessment and controlling for risk factors were found to increase bias leaving uncertainty in interpretation of these findings and a need for further research.
The effects of mindfulness on executive processes and autobiographical memory specificity
Heeren, A., Van Broeck, N., & Philippot, P. (2009). The effects of mindfulness training on executive processes and autobiographical memory specificity. Behaviour Research and Therapy, 47, 403-409.
Corticospinal adaptations and strength maintenance in the immobilized arm following 3 weeks unilateral strength training.
by Alan Pearce
Pearce et al.
Scandinavian Journal of Medicine and Science in Sport (In Press)
DOI: 10.1111/j.1600-0838.2012.01453.x
Computer-based training and cognitive improvement after adult-onset malaria: A case report
Malaria infection is known to cause cognitive impairments in children and adults. To date, very little research has... more Malaria infection is known to cause cognitive impairments in children and adults. To date, very little research has investigated the efficacy of computer-based cognitive rehabilitation after cerebral malaria, particularly in adults. The aim of this study was to examine whether computer-based cognitive training can be employed to rehabilitate memory and attentional deficits after cerebral malaria, particularly in adults. The current study examines the case of a 20-year-old female who acquired malaria on trip to Ghana. One year after her infection she still exhibited below-average performance on a number of neuropsychological assessments. A computer-based cognitive training program was undertaken for 14 weeks. At the end of training, performance improved on the majority of assessments and was within the normal range for all assessments. The participant also displayed greater improvements from pre-test to post-test than a normal control participant who did not complete cognitive training. The findings extend prior research on cerebral malaria and suggest possible rehabilitation methods for adults who experience cognitive impairments following malaria infection.
Standardizing the intensity of upper limb treatment in rehabilitation medicine
Indexed on pubmed PMID: 20237174
Authors: Wallace AC, Talelli P, Dileone M, Oliver R, Ward N, Cloud G, Greenwood R, Di Lazzaro V, Rothwell JC, Marsden... more
Authors: Wallace AC, Talelli P, Dileone M, Oliver R, Ward N, Cloud G, Greenwood R, Di Lazzaro V, Rothwell JC, Marsden JF
Journal: Clinical Rehabilitation 2010
Epub ahead of print
Objective: To describe a treatment protocol for the upper limb that standardizes intensity of therapy input regardless of the severity of presentation.Design: The protocol is described (Part 1) and feasibility and effect explored (Part 2).Subjects: Participants (n = 11) had a single ischaemic stroke in the middle cerebral artery territory more than one year previously, and had residual weakness of the hand with some extension present at the wrist and the ability to grasp.Interventions: Following two baseline assessments, participants attended therapy for 1 hour a day for 10 consecutive working days. Treatment consisted of a combination of strength and functional task training. Outcomes were measured immediately after training, at one month and three months. OUTCOME MEASURES: Intensity was measured with Borg Rating of Perceived Exertion. Secondary outcome measures included Action Research Arm Test (ARAT), nine-hole peg test, and Goal Attainment Scale.Results: Borg scores indicated that the level of intensity was appropriate and similar across all participants despite individual differences in the severity of their initial presentation (median (interquartile range) = 14 (13-15)). The mean ARAT score significantly increased by 6.8 points (chi(2)(3) = 15.618, P < 0.001), and was maintained at three-month follow-up (z = - 2.384, P = 0.016). The nine-hole peg test also showed a main effect of time and 88% of goals set were achieved.Conclusions: The physiotherapy protocol standardized intensity of treatment by grading exercise and task-related practice according to the person's residual ability, rather than simply standardizing treatment times. It was feasible and well tolerated in this group.
PMID: 20237174 [PubMed - as supplied by publisher]
Standing Growing Blooming Trees REHABILIUM Serious Game for Rehabilitaion
Hiroyuki Matsuguma, Sadamu Fujioka, Ai Nakajima, Kosuke Kaneko,
Proceedings of the 9th International Conference of Asia Digital Art and Design Association (ADADA'2011), pp.227-228, Dec., 2011.
Rehabilium is a game to support stand-up rehabilitation exercise, which is strongly recommended in a rehabilitation... more
Rehabilium is a game to support stand-up rehabilitation exercise, which is strongly recommended in a rehabilitation therapy. The game users grow up the tree by their stand-up movements collecting various kinds of items such as unique flowers, cards and medals and that enable the extremely tedious training to a fun game.
Rehabilium is more than just an entertainment for the patients; it’s about the dependable partner for the therapists.
A Five-State P300-based Foot Lifter Orthosis: Proof of Concept
IEEE BRC2012, Manaus
Current lower limb prostheses do not integrate re-
cent developments in robotics and in Brain-Computer... more
Current lower limb prostheses do not integrate re-
cent developments in robotics and in Brain-Computer Interfaces
(BCIs). In fact, active lower limb prostheses seldom consider
the user’s intent, they often determine the correct movement
from those of healthy parts of the body or from the residual
limb. Recently, an emerging idea for non-invasive BCIs was
proposed to allow such low bitrate systems to control a lower limb
prosthesis thanks to a Central Pattern Generator (CPG) widely
used in robotics. This CPG allows to automatically generate a
periodic gait pattern. Furthermore, the CPG pattern frequency
and magnitude can be adapted according to the specific gait
behavior of the patient and his desired speed.
This paper proves the concept of combining a human gait model
based on a CPG and a classic but non-natural P300 BCI in order
to consider the user’s intent. The details of how the entire chain
can be practically implemented are given. Finally, preliminary
results on four healthy subjects for a four-speed P300-based lower
limb orthosis with a non-control state are presented. Globally,
results are satisfying and prove the feasibility of such systems.
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Seen by:Tanz- und Bewegungstherapie [Dance and movement therapy]
Bräuninger, I., & Blumer, E. (2004). Tanz- und Bewegungstherapie [Dance and movement therapy]. In W. Rössler (Ed.), Lehrbuch Psychiatrische Rehabilitation (pp. 380-387). Heidelberg, Germany: Springer, Fachbuch Medizin/Psychologie.
Dance movement therapy as a body psychotherapy method is an integral part of psychiatric rehabilitation. It identifies... more
Dance movement therapy as a body psychotherapy method is an integral part of psychiatric rehabilitation. It identifies conditions that are a prerequisite for optimal treatment. The importance of nonverbal expression and the role of movement analysis as a diagnostic and intervention tool is discussed as a reflection of inner and outer reality. The treatment of patients with psychiatric disorders is illustrated through case studies of individual and group therapy settings. Finally, efficacy factors of dance movement therapeuty are discussed, particularly for resource activation, and the specific treatment goals of dance movement therapy in in psychiatric rehabilitation are presented.
Tanz- und Bewegungstherapie als körperpsychotherapeutische Behandlungsmethode ist ein fester Bestandteil der psychiatrischen Rehabilitation. Es werden Rahmenbedingungen aufgezeigt, die als Voraussetzung für eine optimale Behandlung gelten. Die Bedeutung des nonverbalen Ausdrucks als Spiegel innerer und äußerer Realität und die Rolle von Bewegungsanalyse als Diagnose- und Interventionsinstrument wird diskutiert. Anhand von Fallbeispielen aus Einzel- und Gruppentherapien wird die Behandlung psychiatrischer Störungen veranschaulicht. Abschließend werden tanz- und bewegungstherapeutische Wirkfaktoren, insbesondere die
Ressourcenaktivierung, und ihre spezifischen Therapieziele in der psychiatrischen Rehabilitation
dargestellt.
61 views
Seen by:Soccer in Guantanamo – a duel between Republicans and Democrats
By James M. Dorsey
A row in the US Congress over Pentagon spending on a soccer pitch for suspected... more
By James M. Dorsey
A row in the US Congress over Pentagon spending on a soccer pitch for suspected terrorists incarcerated in Guantanamo focuses attention on the importance of the beautiful game to both the militants and their counter-terrorist detractors.
The $744,000 pitch outside a $39 million penitentiary-style building known as Camp 6 at the U.S. Navy base at Guantanamo Bay, Cuba is intended to reward the most cooperative of the facility’s 120 171 inmates. It builds on US efforts to employ soccer over the past decade as evidence that it complies with the Geneva Conventions and to reduce tensions between the militants and their wardens.
The pitch, set to be inaugurated next month once contractors have installed latrines and goals, is surrounded by guard towers and surveillance cameras and accessible by a secure walkway to reduce contact and conflict between the inmates and their captors.
It is also yet another example of the US government’s use of soccer in its battle for the hearts and minds of militants and their potential supporters. If soccer was a bonding and recruitment tool for jihadists across the globe, it could well serve to reinforce rehabilitation.
That is a notion that doesn’t go down well in an election year and at a time of economic crisis with President Barak Obama’s Republican opponents in the US Congress.
"Seven hundred and fifty thousand dollars for crying out loud? Our deficit this year is $1.2 trillion and we're spending this kind of money on terrorists?" asked Florida Republican member of the House of Representatives Gus Bilirakas in a television interview.
Dennis Ross, another Florida Republican went a step further. He introduced in Congress what he dubbed the ‘NO FIELD Act’ or None of Our Funds for the Interest, Exercise, or Leisure of Detainees Act, which would reduce the Defence Department's 2013 budget by $750,000 – the soccer pitch’s price tag.
Guantanamo "should not be a place of comfort. It should house the worst of the worst of the world's terrorists, not be a training ground for the World Cup,” McClatchy Newspapers quoted Mr. Ross as saying.
“Though it’s a tough choice to say who deserves more blame for such apparent waste, fraud and abuse, the genius who thought up the soccer field in the first place, or the contractor fleecing Uncle Sam for a small dirt field surrounded by a green fence, one thing is certain – this episode shows President Obama’s priorities in action,” said retired Navy Commander and former Pentagon spokesman J. D. Gordon who served as an advisor to Herman Cain’s failed 2012 Republican presidential campaign in an op-ed on Fox News.
Guantanamo commander Rear Admiral David B. Woods told McClatchy that construction costs were high because all equipment and supplies had to be imported to the 116-square-kilometer base in southeast Cuba.
"That's probably the biggest misperception and lack of understanding of the expense of doing things down here. It's unlike any place else in the world mainly because we don't have the opportunity to capitalize on the local economy,” Admiral Woods said.
Over the past decade, soccer has constituted part of the United States’ soft power tools in seeking to win hearts and minds. The US administration in Iraq in the wake of the overthrow of Saddam Hussein made the construction and rehabilitation of soccer stadiums and clubs a priority in a bid to counter efforts by militants to make inroads among the country’s youth.
US military and civilian officials argued that reopening soccer stadiums and encouraging people to play free of fear or persecution would win hearts and minds among those scarred by regimes for which soccer was either the enemy or a weapon of terror.
Members of the US 87th Infantry's 1st battalion were thrashed 9:0 a few years ago when they played the Sons of Iraq, a team made up of former insurgents, on a makeshift pitch on a dirt field in northern Iraq. As far as the Americans were concerned, their thrashing contained an important message: soccer balls can be more powerful than bombs. "You lose a game, but you win a lot of friends," said Maj. Gen. Mark Hertling, the then commander of the 1st Armored Division and Multi-National Division North.
Before US-led coalition troops entered Baghdad in 2003, Saddam Hussein's men went into the neighbourhoods and passed out guns and stored weapons in schools. Because it was too dangerous to drive the trailers away through the streets, American forces blew them up - and in the process, damaged schools and surrounding homes. Though the US military returned to clear away the debris, distribute soccer balls and help set up teams and leagues in tense towns like Ramadi and Sadr City, unexploded shells remain in fields and school-yards where children kick their balls.
With an estimated 42 million land mines or two landmines per person in Iraq in a nation of 24 million, US Provisional Reconstruction Teams partnered with Spirit of Soccer, a Johnstown, Pennsylvania NGO that employs soccer to educate youth about the risk of mines. Trained by Spirit of Soccer, Iraqi coaches, including women, discussed fair play, avoiding dangers from land mines and other unexploded munitions, sportsmanship, tolerance and the need for non-violent conflict resolution while dribbling and kicking penalties. Participants returned to their communities as coaches and organizers of Youth Soccer and Mine Awareness Festivals.
In Afghanistan, US-led international forces played shortly after their 2001 overthrow of the Taliban soccer against an Afghan team in Kabul’s Ghazi Stadium to highlight the change they were bringing to the war-ravaged country. The stadium had been used by the Taliban for public executions, stonings and amputations. Americans and Iranians competed in Iran in the reconstruction of soccer pitches as a way of earning brownie points.
Soccer may seem an odd foreign policy tool or military priority. But with at least half the population of Iraq and Afghanistan under the age of 18, soccer balls and shoes are as basic to mending the two countries’ social fabric as beams and girders are to mending the damaged buildings. Indeed, the future of Iraq as well as Afghanistan and US relations with both countries may well in part depend on soccer paraphernalia and US efforts to prevent political interference and sectarian strife from undermining the two nations’ soccer performance.
Clearly, it will take more than a soccer training, a soccer league and a successful national team to overcome Iraq' and Afghanistan’s ethnic, religious and social divisions. Yet sociologists suggest that soccer can play a role in strengthening feelings of unity and national identity. Sports can also have a cathartic effect by channelling human aggression away from violence and into more healthy channels. Nelson Mandela used a racially integrated national rugby team to unite South Africa in the wake of apartheid -- a story now made famous by the movie Invictus. South Africa went on to become the first African nation to successfully host the World Cup.
These are lessons that may be lost on the Republicans but they are certainly not lost on militants. The most radical militants including Al Qaeda’s Somalia affiliate as well as some Saudi and Egyptian Salafi sheikhs denounce soccer as the infidel’s game because it was introduced by British colonialists and because of its potential to compete with Islam, particularly as a release valve in autocratic environments. Saudi Arabia recognized soccer’s competitive power during the 2010 World Cup when it, afraid that believers would forget their daily prayers during matches broadcast live on Saudi TV, rolled out mobile mosques on trucks and prayer mats in front of popular cafes where men gathered to watch the games.
More mainstream militants like the late Osama Bin Laden, Hamas leader Ismail Haniyeh and Hezbollah chief Hassan Nasrallah are fervent soccer fans who use the game as a bonding and recruitment tool. Soccer brought recruits into the fold, encouraged camaraderie and reinforced militancy among those who had already joined. The track record of soccer-players-turned suicide bombers proved their point.
James M. Dorsey is a senior fellow at the S. Rajaratnam School of International Studies at Nanyang Technological University in Singapore and the author of the blog, The Turbulent World of Middle East Soccer.
High volume versus low volume balance training on postural sway in adults with previous ankle inversion injury
by Alan Pearce
Castricum, Pearce and Kidgell
International Journal of Motor Learning and Sports Performance 2(2):29-36
Wolf, Sonja. “Policing Crime in El Salvador.”
by Sonja Wolf
NACLA Report on the Americas 45.1 (Spring 2012): 43-54.
Oscillator-based walking assistance: A model-free approach
Med Biol Eng Comput DOI 10.1007/s11517-011-0816-1
In this article, we propose a new method for providing assistance during cyclical movements. This method is... more In this article, we propose a new method for providing assistance during cyclical movements. This method is trajectory-free, in the sense that it provides user assistance irrespective of the performed movement, and requires no other sensing than the assisting robot’s own encoders. The approach is based on adaptive oscillators, i.e., mathematical tools that are capable of learning the high level features (frequency, envelope, etc.) of a periodic input signal. Here we present two experiments that we recently conducted to validate our approach: a simple sinusoidal movement of the elbow, that we designed as a proof-of-concept, and a walking experiment. In both cases, we collected evidence illustrating that our approach indeed assisted healthy subjects during movement execution. Owing to the intrinsic periodicity of daily life movements involving the lower-limbs, we postulate that our approach holds promise for the design of innovative rehabilitation
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Seen by:Human-robot synchrony: flexible assistance using adaptive oscillators
Ieee Transactions On Biomedical Engineering - 58(4) : 1001:1012 (2011)
We propose a novel method for movement assistance that is based on adaptive oscillators, i.e., mathematical tools that... more We propose a novel method for movement assistance that is based on adaptive oscillators, i.e., mathematical tools that are capable of extracting the high-level features (amplitude, fre- quency, and offset) of a periodic signal. Such an oscillator acts like a filter on these features, but keeps its output in phase with respect to the input signal. Using a simple inverse model, we predicted the torque produced by human participants during rhythmic flexion– extension of the elbow. Feeding back a fraction of this estimated torque to the participant through an elbow exoskeleton, we were able to prove the assistance efficiency through a marked decrease of the biceps and triceps electromyography. Importantly, since the os- cillator adapted to the movement imposed by the user, the method flexibly allowed us to change the movement pattern and was still ef- ficient during the nonstationary epochs. This method holds promise for the development of new robot-assisted rehabilitation protocols because it does not require prespecifying a reference trajectory and does not require complex signal sensing or single-user cal- ibration: the only signal that is measured is the position of the augmented joint. In this paper, we further demonstrate that this as- sistance was very intuitive for the participants who adapted almost instantaneously.

