Zephyr bioharness in de praktijk

Een te hoge fysieke belasting bij (top)sporters en brandweerpersoneel kan op de lange termijn leiden tot overbelasting. In het revalidatie proces kan het de terugkeer naar het veld vertragen. Daarom is het nauwkeurig monitoren van de fysieke belasting erg belangrijk. Het Zephyr BioHarness lijkt hiervoor een geschikt instrument omdat het in staat is om verschillende fysiologische variabelen tegelijkertijd te meten. In dit rapport worden vier projecten besproken waarin de fysieke belasting gemeten is met het Zephyr BioHarness: (I) effect van veldgrootte op de belasting bij jonge talentvolle voetballers van FC Groningen, (II) overeenkomsten in belasting tussen oefeningen/sporten en uitrukken bij de professionele brandweer, (III) overeenkomsten tussen geplande belasting van fysiotherapeuten met daadwerkelijk belasting bij veldrevalidatie na een blessure (IV) validatie van Zensorium Tinké

Patellar tendinopathy:Causes, consequences and the use of orthoses

Patellar tendinopathy (PT), also known as jumper’s knee, is a painful overuse injury of the patellar tendon. This injury is common in jumping athletes. There are numerous treatment options currently available for PT, yet none of them guarantee full recovery. As a result, many athletes have long-lasting symptoms, even after ending their athletic career. The scope of this thesis was to gain more insight into the causes and consequences of PT, and to study the effectiveness of commonly used orthoses, like patellar straps, on pain and knee joint proprioception. This thesis shows that male jumping athletes who have physically demanding work have a bigger chance of developing PT, hence when taking preventive measures it is important to consider the type of work an athlete does. This thesis also showed that PT has a negative impact on sports and work, as 55% of the athletes had substantial problems during sports: 16% had low work ability and 35% reduced work productivity. This thesis demonstrated further that pain during and after sports can be reduced by using a patellar strap. A patellar strap also seems to improve knee joint proprioception, which may play a role in injury prevention. The long-term effect of using a patellar straps remains unknown though. This thesis provides more insight into the severity and etiology of PT, possible working mechanisms, and the effectiveness of the use of patellar straps

Identifying binge drinkers based on parenting dimensions and alcohol-specific parenting practices: building classifiers on adolescent-parent paired data.

BACKGROUND: Most Dutch adolescents aged 16 to 18 engage in binge drinking. Previous studies have investigated how parenting dimensions and alcohol-specific parenting practices are related to adolescent alcohol consumption. Mixed results have been obtained on both dimensions and practices, highlighting the complexity of untangling alcohol-related factors. The aim of this study was to investigate (1) whether parents' reports of parenting dimensions and alcohol-specific parenting practices, adolescents' perceptions of these dimensions and practices, or a combination are most informative to identify binge drinkers, and (2) which of these parenting dimensions and alcohol-specific parenting practices are most informative to identify binge drinkers. METHODS: Survey data of 499 adolescent-parent dyads were collected. The computational technique of data mining was used to allow for a data driven exploration of nonlinear relationships. Specifically, a binary classification task, using an alternating decision tree, was conducted and measures regarding the performance of the classifiers are reported after a 10-fold cross-validation. RESULTS: Depending on the parenting dimension or practice, parents' reports correctly identified the drinking behaviour of 55.8% (using psychological control) up to 70.2% (using rules) of adolescents. Adolescents' perceptions were best at identifying binge drinkers whereas parents' perceptions were best at identifying non-binge drinkers. CONCLUSIONS: Of the parenting dimensions and practices, rules are particularly informative in understanding drinking behaviour. Adolescents' perceptions and parents' reports are complementary as they can help identifying binge drinkers and non-binge drinkers respectively, indicating that surveying specific aspects of adolescent-parent dynamics can improve our understanding of complex addictive behaviours

Two-Step 3D-Guided Supramalleolar Osteotomy to Treat Varus Ankle osteoarthritis

Background: Success of valgus-type supramalleolar osteotomy (SMOT) depends on adequate correction of malalignment, which can be hard to achieve with current 2-dimensional (2D) planning and operative techniques. A personalized digital 3-dimensional (3D) workflow to virtually plan and perform a 2-step 3D-guided medial opening (MO) SMOT has the potential to improve precision of correction. Methods: Computed tomography (CT)-based Proplan medical 3D models were made to virtually plan the desired MO SMOT, and exported to 3-Matic medical to develop patient-specific 2-step cutting and wedge guides. Workflow accuracy was tested in this limited clinical pilot study (3 patients) by comparing the virtual planned position of the osteotomized distal tibial fragment with the I -year post-MO SMOT configuration. Two millimeters or less translation deviation in every plane was defined as accurate. Results: Primary outcome analysis of the osteotomized distal tibial fragment deviation showed a median translation in all planes of 0.7 (range 0-8.2) mm (interquartile range 1.55) with an excellent interrater reliability of the measurements (intraclass correlation coefficient 0.998). There was a strong reduction in ankle pain as reflected by an increase of the AOFAS-AH score and decrease of NRS pain score with an unrestricted hindfoot motion 1 year after surgery. Conclusion: 3D virtually planned bone cutting and wedge guides is a promising approach associated with minimal postoperative deviation from the desired correction in medial opening supramalleolar osteotomy

Action planning as predictor of health protective and health risk behavior: an investigation of fruit and snack consumption

BACKGROUND: Large discrepancies between people's intention to eat a healthy diet and actual dietary behavior indicate that motivation is not a sufficient instigator for healthy behavior. Research efforts to decrease this 'intention - behavior gap' have centered on aspects of self-regulation, most importantly self-regulatory planning. Most studies on the impact of self-regulatory planning in health and dietary behavior focus on the promotion of health protective behaviors. This study investigates and compares the predictive value of action planning in health protective behavior and the restriction of health risk behavior. METHODS: Two longitudinal observational studies were performed simultaneously, one focusing on fruit consumption (N = 572) and one on high-caloric snack consumption (N = 585) in Dutch adults. Structural equation modeling was used to investigate and compare the predictive value of action planning in both behaviors, correcting for demographics and the influence of motivational factors and past behavior. The nature of the influence of action planning was investigated by testing mediating and moderating effects. RESULTS: Action planning was a significant predictor of fruit consumption and restricted snack consumption beyond the influence of motivational factors and past behavior. The strength of the predictive value of action planning did not differ between the two behaviors. Evidence for mediation of the intention - behavior relationship was found for both behaviors. Positive moderating effects of action planning were demonstrated for fruit consumption, indicating that individuals who report high levels of action planning are significantly more likely to translate their intentions into actual behavior. CONCLUSION: The results indicate that the planning of specific preparatory actions predicts the performance of healthy dietary behavior and support the application of self-regulatory planning in both health protective and health risk behaviors. Future interventions in dietary modification may turn these findings to advantage by incorporating one common planning protocol to increase the likelihood that good intentions are translated into healthy dietary behavior

Effect of patellar strap and sports tape on jumper's knee symptoms:Protocol of a randomised controlled trial

AbstractIntroductionPatellar straps or sports tapes are commonly used by athletes with patellar tendinopathy in order to reduce pain and to continue sports participation. Currently, there is no scientific evidence for the effectiveness of a patellar strap or sports tape in the management of this common injury.AimTo investigate the effect of the use of a patellar strap and sports tape on pain and sports participation in subjects with patellar tendinopathy.DesignThe study is divided into two parts: a randomised controlled crossover experiment and a randomised controlled trial (parallel group design).Participants and setting140 patients diagnosed with patellar tendinopathy recruited from sports medical centres and physiotherapist practices.InterventionIn the first part of the study, participants serve as their own control by performing three functional tests under four different conditions (patellar strap, sports tape, placebo tape, and no orthosis). In the second part, participants keep a log for two weeks (control week and intervention week) about the pain experienced during and after sports and their level of sports participation. In the intervention week participants will use the orthosis assigned to them during training and competition.MeasurementsThe amount of pain (both parts of the study) and sports participation (second part only) will be measured.AnalysisTo analyse the effects of the orthoses a Linear Mixed Model will be used.DiscussionThe knowledge gained in this study can be used by practitioners in their advice for athletes with patellar tendinopathy about using patellar strap and sports tape during sports

Workers' views on involving significant others in occupational health care:a focus group study among workers with a chronic disease

Purpose: To explore workers’ views and considerations on involving their significant others (SOs) in occupational health care. Methods: Four focus group interviews in the Netherlands, with 21 workers who had visited an occupational health physician (OHP) due to work absence caused by a chronic disease. Data was analyzed using thematic analysis. Results: We distinguished four main themes: (i) attitudes towards involving SOs, (ii) preferences on how to involve SOs, (iii) benefits of involving SOs, and (iv) concerns with regard to involving SOs. Workers expressed both positive and critical opinions about involving SOs in occupational health care. Benefits mentioned included provision of emotional and informational support by SOs before, during, and after consultations. According to workers, support from SOs can be enhanced by informing SOs about re-integration plans and involving them in decision making. However, workers were concerned about overburdening SOs, and receiving unwanted support from them. Conclusions: According to interviewed workers, engagement of SOs in occupational health care can help workers with a chronic disease in their recovery and return to work. However, they felt it is important to take SO characteristics and the worker’s circumstances and preferences into account, and to balance the potential benefits and drawbacks of involving SOs.Implications for rehabilitation This study suggests that the worker’s re-integration process could benefit from informing significant others about the return to work plans, involving them in decision-making, and explicitly discussing how the significant other can support the worker. Occupational health physicians have an important role in informing workers about the possibility and potential benefits of involving their significant others in the re-integration process. The involvement of a significant other in the re-integration process needs to be tailored to the specific situation of the individual worker, taking into account the preferences of both the worker and significant other. Findings suggest that it is important that occupational health physicians, workers and significant others are not only aware of the possible benefits of significant other involvement, but also of potential drawbacks such as interference during consultations, overburdening significant others, and significant others providing unwanted support

Mid-term results of the Latitude primary total elbow arthroplasty

Background: The Latitude total elbow prosthesis is a third-generation implant, developed to restore the natural anatomy of the elbow. Literature on this prosthesis is scarce. The aim of this study was to analyze the mid-term results of the Latitude total elbow prosthesis. Methods: We retrospectively evaluated 62 patients (21 men and 41 women). The mean age at the time of surgery was 65 years (range, 28-87 years). The main indication for surgery was inflammatory arthritis. The outcome measures were complications, reoperations, self-reported physical functioning, pain, satisfaction, objectively measured physical functioning, and radiologic signs of loosening. Kaplan-Meier survival analysis was used to determine survival with revision as the endpoint. Results: Sixty-nine primary Latitude prostheses were placed in 62 patients between 2008 and 2019. Six patients (7 prostheses) died, 3 elbows underwent revision, and 9 patients were lost to follow-up. A total of 44 patients (50 prostheses) were available for follow-up. The mean length of follow-up was 51 months (range, 10-144 months). Kaplan-Meier survival analysis showed a survival rate of 82% at 10 years after surgery. The main reason for revision was aseptic loosening. Radial head dissociation was seen in 8 patients (24%), but none had complaints. Self-reported and objectively measured physical functioning yielded good results, although 23 patients (46%) did show radiolucent lines on radiographs. Conclusion: Latitude total elbow arthroplasty is considered a successful procedure with low pain scores, high patient satisfaction, and good physical functioning. Survival rates nonetheless remain low and complication rates remain high yet are comparable to those of other elbow arthroplasties. We recommend biomechanical studies to concentrate on specific postoperative loading instructions to minimize wear and consequent loosening