Physiological cost of apple-farming activities

Costa, Gianluca; Berti, Fabio; Betta, Alberto

doi:10.1016/0003-6870(89)90191-9

Cited by 21 publications

(15 citation statements)

References 8 publications

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“…As HR response to the same workload is sensitive to many inter-and intra-individual influences, the derived indices were chosen to take into account inter-individual differences [18]. Moreover, NCC being related to RHR is used to evaluate workload strictly associated with the job; while RCC, linked to the subjects' resting and maximal HR, expresses individual circulatory strain better [10,19]. In this study WV O2 was calculated depending on the direct measurement of V O2 and concomitant HR on the basis of a general linear relationship existing between them since such estimation is reliable for all practical purposes of field investigation and is quite sensitive, with a variation of ±15% [10].…”

Section: Physical Strain Of the Tramming Jobmentioning

confidence: 99%

A Study of the Workload of Underground Trammers in the Ranigang Coal Field Area of West Bengal, India

Dey

Samanta

Saha

2006

International Journal of Occupational Safety and Ergonomics

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Section: Physical Strain Of the Tramming Jobmentioning

confidence: 99%

A Study of the Workload of Underground Trammers in the Ranigang Coal Field Area of West Bengal, India

Dey

Samanta

Saha

2006

International Journal of Occupational Safety and Ergonomics

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“…[14] Moreover, net cardiac cost, being related to resting heart rate, evaluates the work load strictly connected with the job; while the relative cardiac cost, taking into consideration both the resting and maximal heart rate of the subjects, gives best expression of the individual circulatory strain. [15,16] Such a view also oriented the choice for 'limit for continuous work' [17] adjusted for male population and based on the resting pulse of the subjects. In this study, working oxygen consumptions were estimated from measured working heart rates as a general linear relationship exists between the parameters during standardized exercise as obtained in this study during laboratory examination; that corroborates well with earlier findings.…”

Section: Discussionmentioning

confidence: 99%

“…The physical strain of the present inland fishing task in terms of heart rate could be compared with the tasks related with apple farming [15] and dairy farming works. [19] The relative aerobic strain in the scoop net fishing varied between 30 and 38% of VO 2 max, which compared with the values obtained for different types of coastal fishing tasks, viz., hand line, long line and net fishing but was lower than the strain of fishing with a Danish-seine.…”

Section: Discussionmentioning

confidence: 99%

Assessment of physiological strain in inland fishing activity

Biswas

Samanta

2006

Indian J Occup Environ Med

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Ten fishermen aged between 19 and 48 years of age, were examined in the field during inland fishing activity, which they perform individually. Physiological strain in terms of heart rate varied between 86 and 115 beats/min with mean net cardiac cost of 32 beats/min. The average relative cardiac cost was 36%. Analysis of physiological responses revealed that the recommended limits of cardiac strain indices were surpassed during the majority of the fishing period. Average energy cost was estimated to be 3.3 kcal.min-1, which was about 34% of the VO2max. Average intensity of the workload entailed in the whole fishing shift appeared to be moderate and acceptable. Furthermore, the heat load in the working situation did not appear to be a serious threat to the health of the workers. Analysis of work revealed more static exertions in the work. To reduce the postural load and musculoskeletal discomforts of the fishermen, ergonomic interventions are required, which represents a further scope of study.

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“…Net and relative cardiac cost (CC) was considered as two derived indices of cardiac strain (Costa et al, 1989); they were determined with Equations A& B:…”

Section: Cardiac Strainmentioning

confidence: 99%

Assessment of Cardiac Cost of Two Age Groups of Brick Carriers During Summer in Different Unorganized Brick making Sector in West Bengal, India

Maity¹,

Sahu²

2016

Int.J.Curr.Res.Aca.Rev.

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In brick making industry, brick carrying activity requires extreme physical efforts and imposes additional load on cardiovascular system of the workers in hot environment. Lack of data about age associated alteration of cardiac cost among the brick carriers impinged us for this study. The purpose of this study was to assess the cardiac cost of two age groups of brick carriers in summer seasons. 156 brick carriers, having minimum one years experiences, were divided into two groups i.e., younger carriers and older carriers. Anthropometric parameters along with different cardiac indices were calculated with Polar Heart-Rate Monitor. The wet bulb globe temperature (WBGT out ) index of the worksite was also measured. Group-wise comparison of cardiac indices and effect of age on those indices were performed using‗t'-test and correlation coefficients respectively adjusting for confounders. All cardiac parameters were positively correlated with one another except for average working HR with PREC, Relative CC and Net CC; Working HR max with PREC and Relative CC; and SRHB with Relative CC. It was seen that the brick carriers surpassed the recommended limits of cardiac strain indices like Net CC and Relative CC, especially with increasing age. This indicates the job used to -heavy‖ to -extremely heavy‖ in accordance with the cardiac parameters.

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Physiological cost of apple-farming activities

Cited by 21 publications

References 8 publications

A Study of the Workload of Underground Trammers in the Ranigang Coal Field Area of West Bengal, India

A Study of the Workload of Underground Trammers in the Ranigang Coal Field Area of West Bengal, India

Assessment of physiological strain in inland fishing activity

Assessment of Cardiac Cost of Two Age Groups of Brick Carriers During Summer in Different Unorganized Brick making Sector in West Bengal, India

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