Age-Dependent Changes in Temperature Regulation – A Mini Review

Blatteis, Clark M.

doi:10.1159/000333148

Cited by 212 publications

(131 citation statements)

References 47 publications

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“…The findings for their hand functions were at least similar to those of the Japanese workers. We expected poorer outcomes in the Japanese workers because of their older ages and colder climatic environment, as the body temperature of older people is lower than that of younger people and their tolerance of thermal extremes is more limited 18) . Instead, the finger skin temperatures were lower and the vibrotactile perception thresholds were higher among the Malaysian workers.…”

Section: Discussionmentioning

confidence: 99%

A Comparison of Hand‐arm Vibration Syndrome between Malaysian and Japanese Workers

Darus

Hoe

et al. 2013

Journal of Occupational Health

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subjects. The FST and VPT of the Malaysian tree fellers were at least as bad as the Japanese tree fellers despite a shorter duration (mean difference=20.12 years, 95%CI=14.50, 25.40) of vibration exposure. Conclusions: Although the vascular disorder does not manifest clinically in the tropical environment, the severity of HAVS can be as bad as in the temperate environment with predominantly neurological disorder. Hence, it is essential to formulate national legislation for the control of the occupational vibration exposure. Hand-arm vibration syndrome (HAVS) is a wellrecognized health disorder in temperate climate countries because of the appearance of its peripheral circulatory disturbances, especially the "white fingers", along with its neurological disorders such as tingling, numbness and dullness of the fingers during cold seasons 1−6) . The condition, however, has not been clearly demonstrated in the tropical environment. Up to now, only six papers have reported cross-sectional studies among vibratory tools workers in Singapore, Indonesia, Papua New Guinea, Southern . A recent systematic review of HAVS in the tropical environment revealed that vibration white finger has not been reported in tropical countries and that the symptoms have been predominantly neurological 13) . There is no previous study comparing the clinical outcomes of hand-transmitted vibration between the tropical and temperate environments.In Malaysia, periodic medical examinations for We conducted a series medical examinations among the forestry, construction and automobile industry workers in Malaysia adopting the compulsory medical examination procedure used by Wakayama Medical University for Japanese vibratory tools workers. We matched the duration of vibration exposure and compared our results against the Japanese workers.We also compared the results of the Malaysian tree fellers against a group of symptomatic Japanese tree fellers diagnosed with HAVS. Results: Malaysian subjects reported a similar prevalence of finger tingling, numbness and dullness (Malaysian=25.0%, Japanese=21.5%, p=0.444) but had a lower finger skin temperature (FST) and higher vibrotactile perception threshold (VPT) values as compared with the Japanese workers. No white finger was reported in Malaysian

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Section: Discussionmentioning

confidence: 99%

A Comparison of Hand‐arm Vibration Syndrome between Malaysian and Japanese Workers

Darus

Hoe

et al. 2013

Journal of Occupational Health

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“…The susceptibility to heat related-illnesses in the elderly [6] is caused by a deterioration in thermoregulatory responses with aging [47,48]. Previous studies have indicated that even healthy elderly individuals have an impaired thermal perception [49] and impaired autonomic [50,51] and behavioral [52,53] thermoregulatory responses.…”

Section: Effects Of Biological Aging On Thermoregulation In Warm and mentioning

confidence: 99%

Body Temperature Regulation During Exercise and Hyperthermia in Diabetics

Takeda¹,

Okazaki²

2018

Diabetes and Its Complications

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Thermoregulatory function, that is, heat dissipative responses such as skin blood flow (SkBF) and sweating to an increased body temperature, is critical during physical work or exercise in warm and hot conditions and during hyperthermia. Thermoregulatory function is associated with individual somatotype, fitness level, normal aging, and physiological status and diseases. Individuals with type 2 diabetes have decreased thermoregulatory responses compared with healthy counterparts, characterized by decreased SkBF and sweating. The decreased SkBF and sweating would be associated with the reduction in nitric oxide bioavailability and endothelial functions in skin vasculatures, also with central mechanisms, and so on. Aerobic exercise training and/or acclimation to the heat improve heat dissipative responses in healthy subjects. The effects of exercise training in type 2 diabetics on glycemic control are well established while it remains unclear that high levels of aerobic fitness or exercise training in diabetics improve thermoregulatory function during heat stress.

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“…Similar to the impairments in heat loss, older workers (particularly >60 years) have a diminished capacity to maintain core temperature during cold exposure (Blatteis 2012). The mechanisms for this include attenuated cutaneous thermal sensitivity and subjective thermal perception when exposed to cold environments (Blatteis 2012).…”

Section: Work In Cold Environmentsmentioning

confidence: 99%

“…The mechanisms for this include attenuated cutaneous thermal sensitivity and subjective thermal perception when exposed to cold environments (Blatteis 2012). Consequently, older adults require intense cold stimuli before activating their protective mechanisms.…”

Section: Work In Cold Environmentsmentioning

confidence: 99%

Age, human performance, and physical employment standards

Kenny

Groeller

McGinn

et al. 2016

Appl. Physiol. Nutr. Metab.

100

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Abstract:The proportion of older workers has increased substantially in recent years, with over 25% of the Canadian labour force aged ≥55 years. Along with chronological age comes age-related declines in functional capacity associated with impairments to the cardiorespiratory and muscular systems. As a result, older workers are reported to exhibit reductions in work output and in the ability to perform and/or sustain the required effort when performing work tasks. However, research has presented some conflicting views on the consequences of aging in the workforce, as physically demanding occupations can be associated with improved or maintained physical function. Furthermore, the current methods for evaluating physical function in older workers often lack specificity and relevance to the actual work tasks, leading to an underestimation of physical capacity in the older worker. Nevertheless, industry often lacks the appropriate information and/or tools to accommodate the aging workforce, particularly in the context of physical employment standards. Ultimately, if appropriate workplace strategies and work performance standards are adopted to optimize the strengths and protect against the vulnerability of the aging workers, they can perform as effectively as their younger counterparts. Our aim in this review is to evaluate the impact of different individual (including physiological decline, chronic disease, lifestyle, and physical activity) and occupational (including shift work, sleep deprivation, and cold/heat exposure) factors on the physical decline of older workers, and therefore the risk of work-related injuries or illness.Key words: aging, worker, work ability, functional capacity, health, fitness, exercise.Résumé : La proportion de travailleurs âgés s'est accrue substantiellement au cours des dernières années; plus de 25 % de la main d'oeuvre au Canada est âgée de ≥55 ans. Avec l'avancement en âge vient le déclin de la capacité fonctionnelle associé à des troubles des systèmes cardiorespiratoire et musculaire. Ainsi, selon des études, il y a une diminution dans la production de travail des individus plus âgés et dans leur capacité à effectuer et maintenir un rythme de travail. Toutefois, la documentation scientifique rapporte des points de vue divergents à propos des conséquences du vieillissement de la main-d'oeuvre, car les tâches physiquement exigeantes peuvent être associées à une amélioration ou à un maintien des fonctions physiques. De plus, les méthodes actuelles d'évaluation des fonctions physiques des travailleurs plus âgés ne sont pas pertinentes ou ne sont pas suffisamment ajustées aux tâches courantes, ce qui entraîne une sous-estimation de la capacité physique des travailleurs plus âgés. Quoi qu'il en soit, cette industrie ne dispose pas souvent des informations ou des outils pertinents pour s'ajuster à la main-d'oeuvre vieillissante notamment dans le contexte des normes de travail physique. En fin de compte, si on adopte de bonnes stratégies et des normes de travail ajustées aux forces et à la...

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Age-Dependent Changes in Temperature Regulation – A Mini Review

Cited by 212 publications

References 47 publications

A Comparison of Hand‐arm Vibration Syndrome between Malaysian and Japanese Workers

A Comparison of Hand‐arm Vibration Syndrome between Malaysian and Japanese Workers

Body Temperature Regulation During Exercise and Hyperthermia in Diabetics

Age, human performance, and physical employment standards

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