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The aim of this study was to determine whether body mass index (BMI) influences the risk of low back pain (LBP) in a population exposed to whole body vibration (WBV). For this a self-administered questionnaire was sent to 467 participants, driving occupational vehicles. Vibration measurements were performed according to ISO 2631-1 on a representative sample(More)
OBJECTIVE Analysis of a dose-response pattern between exposure to whole body vibration (WBV) and low back pain (LBP) in a group of drivers. METHODS This study assessed individual factors, work-related risk factors, various LBP outcome measures and LBP disability in a group of drivers (n = 571) approached at baseline (T0), as well as the WBV magnitude of a(More)
Acclimatization to chronic hypoxia (CH) increases ventilation (V(I)) and the isocapnic hypoxic ventilatory response (HVR) over 2-14 days but hypoxic desensitization blunts the HVR after years of CH. We tested for hypoxic desensitization during the first 2 months of CH by studying five normal subjects at sea level (SL) and for 8 weeks at 3800 m (CH, PI(O(2))(More)
The arterial blood lactate [La] response to exercise increases in acute hypoxia, but returns to near the normoxic (sea level, SL) response after 2 to 5 weeks of altitude acclimatization. Recently, it has been suggested that this gradual return to the SL response in [La], known as the lactate paradox (LP), unexpectedly disappears after 8 to 9 weeks at(More)
The aim of the study was to examine whether differences in playing level influence the activity profile and physiological demands of advanced and recreational veteran men's tennis players during an hour of tennis match play. Ten advanced (International Tennis Number [ITN] 3-5, 45.3 +/- 5.1 years) and 10 recreational (ITN 7-9, 44.8 +/- 4.7 years) veteran(More)
BACKGROUND The onset of jumper's knee is generally associated with sports and sporting activities. Employees in certain professions might be at risk as well for developing jumper's knee. Therefore, it is of interest to identify risk factors in sport and/or occupation. FINDINGS A systematic search of the international scientific literature was performed(More)
BACKGROUND An effective intervention program aiming to reduce whole body vibration (WBV) exposure at work will reduce the number of low back complaints in the near future. METHODS An evaluation study with a controlled pretest-post-test design. Nine companies and 126 drivers were included in the study. Cluster randomization on company level divided the(More)
BACKGROUND Whole body vibration (WBV) exposure at work is common and studies found evidence that this exposure might cause low back pain (LBP). A recent review concluded there is a lack of evidence of effective strategies to reduce WBV exposure. Most research in this field is focussed on the technical implications, although changing behaviour towards WBV(More)
Inherited portosystemic shunts occur in 2 to 3 per cent of Irish wolfhounds and are associated with high venous ammonia concentrations and signs of hepatic encephalopathy. Moreover, the vast majority of Irish wolfhound pups without signs of hepatic encephalopathy have moderate hyperammonaemia. The aim of this study was to investigate whether the increased(More)
The value of ultrasonographic examination in the diagnosis of congenital portosystemic shunts was assessed in 36 dogs, using the right lateral approach. The sensitivity, specificity, and accuracy were 0.74, 1.0, and 0.86 respectively. The conclusion is that ultrasonography is highly specific and reasonably sensitive in diagnosing congenital portosystemic(More)