Short term influence of mechanical pain: a study of new workers from 12 occupational groups

E. Nahit, Gary John MacFarlane, C. Pritchard, N. Cherry, A. J. Silman

Research output: Contribution to journalEditorial

68 Citations (Scopus)

Abstract

Objectives-To determine the influence of short term exposure to mechanical factors on regional musculoskeletal pain.

Methods-Full time newly employed workers were recruited from 12 occupational groups and information collected by questionnaire. Subjects indicated on a blank body manikin any low back, shoulder, wrist or forearm or both, or knee pain which had occurred during the past month and had lasted more than 1 day. Data were also collected with a previously validated questionnaire on working postures, manual handling activities, and repetitive movements of the upper limb. The relations between mechanical factors and each area of pain were calculated as odds ratios (ORs) with 95% confidence intervals (95% CIs). Adjustment was made for age and sex.

Results-1081 subjects (median age 23; interquartile range 20-27) were recruited to the study (a participation rate of 91%). 261 (24%) reported low back pain, 221 (20%) shoulder pain, 93 (9%) wrist or forearm pain, and 222 (21%) knee pain. Several specific manual handling activities were found to be associated with low back, shoulder, and knee pain. Carrying weights of more than 50 lbs (23 kg) on one shoulder was the factor which was most strongly associated with low back pain (OR 2.4 (95% CI 1.5 to 3.8)), shoulder pain (OR 3.1 (95% CI 1.9 to 4.8)), and knee pain (OR 3.5 (95% CI 2.2 to 5.5)), whereas forearm pain was most strongly associated with repetitive movements of the wrists (OR 1.8 (95% CI 1.04 to 3.1)). By contrast very few postures were associated with regional pain, although bending forwards in an uncomfortable position for at least 15 minutes was associated with shoulder pain (OR 1.6 (95% CI 1.2 to 2.2)) and kneeling for at least 15 minutes was associated with knee pain (OR 1.8 (95% CT 1.2 to 2.6)). Exposure to mechanical factors was most strongly associated with pain at multiple sites rather than with pains in individual regions.

Conclusions-Even among workers with only short term exposure to mechanical factors, musculoskeletal pain is increased.

Original languageEnglish
Pages (from-to)374-381
Number of pages7
JournalOccupational and Environmental Medicine
Volume58
DOIs
Publication statusPublished - 2001

Keywords

  • epidemiology
  • manual handling
  • questionnaire
  • LOW-BACK-PAIN
  • PHYSICAL WORK
  • RISK-FACTORS
  • DISORDERS
  • NECK
  • VALIDITY
  • QUESTIONNAIRE
  • ENVIRONMENT
  • EMPLOYMENT
  • SYMPTOMS

Cite this

Short term influence of mechanical pain: a study of new workers from 12 occupational groups. / Nahit, E.; MacFarlane, Gary John; Pritchard, C.; Cherry, N.; Silman, A. J.

In: Occupational and Environmental Medicine, Vol. 58, 2001, p. 374-381.

Research output: Contribution to journalEditorial

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title = "Short term influence of mechanical pain: a study of new workers from 12 occupational groups",
abstract = "Objectives-To determine the influence of short term exposure to mechanical factors on regional musculoskeletal pain.Methods-Full time newly employed workers were recruited from 12 occupational groups and information collected by questionnaire. Subjects indicated on a blank body manikin any low back, shoulder, wrist or forearm or both, or knee pain which had occurred during the past month and had lasted more than 1 day. Data were also collected with a previously validated questionnaire on working postures, manual handling activities, and repetitive movements of the upper limb. The relations between mechanical factors and each area of pain were calculated as odds ratios (ORs) with 95{\%} confidence intervals (95{\%} CIs). Adjustment was made for age and sex.Results-1081 subjects (median age 23; interquartile range 20-27) were recruited to the study (a participation rate of 91{\%}). 261 (24{\%}) reported low back pain, 221 (20{\%}) shoulder pain, 93 (9{\%}) wrist or forearm pain, and 222 (21{\%}) knee pain. Several specific manual handling activities were found to be associated with low back, shoulder, and knee pain. Carrying weights of more than 50 lbs (23 kg) on one shoulder was the factor which was most strongly associated with low back pain (OR 2.4 (95{\%} CI 1.5 to 3.8)), shoulder pain (OR 3.1 (95{\%} CI 1.9 to 4.8)), and knee pain (OR 3.5 (95{\%} CI 2.2 to 5.5)), whereas forearm pain was most strongly associated with repetitive movements of the wrists (OR 1.8 (95{\%} CI 1.04 to 3.1)). By contrast very few postures were associated with regional pain, although bending forwards in an uncomfortable position for at least 15 minutes was associated with shoulder pain (OR 1.6 (95{\%} CI 1.2 to 2.2)) and kneeling for at least 15 minutes was associated with knee pain (OR 1.8 (95{\%} CT 1.2 to 2.6)). Exposure to mechanical factors was most strongly associated with pain at multiple sites rather than with pains in individual regions.Conclusions-Even among workers with only short term exposure to mechanical factors, musculoskeletal pain is increased.",
keywords = "epidemiology, manual handling, questionnaire, LOW-BACK-PAIN, PHYSICAL WORK, RISK-FACTORS, DISORDERS, NECK, VALIDITY, QUESTIONNAIRE, ENVIRONMENT, EMPLOYMENT, SYMPTOMS",
author = "E. Nahit and MacFarlane, {Gary John} and C. Pritchard and N. Cherry and Silman, {A. J.}",
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TY - JOUR

T1 - Short term influence of mechanical pain: a study of new workers from 12 occupational groups

AU - Nahit, E.

AU - MacFarlane, Gary John

AU - Pritchard, C.

AU - Cherry, N.

AU - Silman, A. J.

PY - 2001

Y1 - 2001

N2 - Objectives-To determine the influence of short term exposure to mechanical factors on regional musculoskeletal pain.Methods-Full time newly employed workers were recruited from 12 occupational groups and information collected by questionnaire. Subjects indicated on a blank body manikin any low back, shoulder, wrist or forearm or both, or knee pain which had occurred during the past month and had lasted more than 1 day. Data were also collected with a previously validated questionnaire on working postures, manual handling activities, and repetitive movements of the upper limb. The relations between mechanical factors and each area of pain were calculated as odds ratios (ORs) with 95% confidence intervals (95% CIs). Adjustment was made for age and sex.Results-1081 subjects (median age 23; interquartile range 20-27) were recruited to the study (a participation rate of 91%). 261 (24%) reported low back pain, 221 (20%) shoulder pain, 93 (9%) wrist or forearm pain, and 222 (21%) knee pain. Several specific manual handling activities were found to be associated with low back, shoulder, and knee pain. Carrying weights of more than 50 lbs (23 kg) on one shoulder was the factor which was most strongly associated with low back pain (OR 2.4 (95% CI 1.5 to 3.8)), shoulder pain (OR 3.1 (95% CI 1.9 to 4.8)), and knee pain (OR 3.5 (95% CI 2.2 to 5.5)), whereas forearm pain was most strongly associated with repetitive movements of the wrists (OR 1.8 (95% CI 1.04 to 3.1)). By contrast very few postures were associated with regional pain, although bending forwards in an uncomfortable position for at least 15 minutes was associated with shoulder pain (OR 1.6 (95% CI 1.2 to 2.2)) and kneeling for at least 15 minutes was associated with knee pain (OR 1.8 (95% CT 1.2 to 2.6)). Exposure to mechanical factors was most strongly associated with pain at multiple sites rather than with pains in individual regions.Conclusions-Even among workers with only short term exposure to mechanical factors, musculoskeletal pain is increased.

AB - Objectives-To determine the influence of short term exposure to mechanical factors on regional musculoskeletal pain.Methods-Full time newly employed workers were recruited from 12 occupational groups and information collected by questionnaire. Subjects indicated on a blank body manikin any low back, shoulder, wrist or forearm or both, or knee pain which had occurred during the past month and had lasted more than 1 day. Data were also collected with a previously validated questionnaire on working postures, manual handling activities, and repetitive movements of the upper limb. The relations between mechanical factors and each area of pain were calculated as odds ratios (ORs) with 95% confidence intervals (95% CIs). Adjustment was made for age and sex.Results-1081 subjects (median age 23; interquartile range 20-27) were recruited to the study (a participation rate of 91%). 261 (24%) reported low back pain, 221 (20%) shoulder pain, 93 (9%) wrist or forearm pain, and 222 (21%) knee pain. Several specific manual handling activities were found to be associated with low back, shoulder, and knee pain. Carrying weights of more than 50 lbs (23 kg) on one shoulder was the factor which was most strongly associated with low back pain (OR 2.4 (95% CI 1.5 to 3.8)), shoulder pain (OR 3.1 (95% CI 1.9 to 4.8)), and knee pain (OR 3.5 (95% CI 2.2 to 5.5)), whereas forearm pain was most strongly associated with repetitive movements of the wrists (OR 1.8 (95% CI 1.04 to 3.1)). By contrast very few postures were associated with regional pain, although bending forwards in an uncomfortable position for at least 15 minutes was associated with shoulder pain (OR 1.6 (95% CI 1.2 to 2.2)) and kneeling for at least 15 minutes was associated with knee pain (OR 1.8 (95% CT 1.2 to 2.6)). Exposure to mechanical factors was most strongly associated with pain at multiple sites rather than with pains in individual regions.Conclusions-Even among workers with only short term exposure to mechanical factors, musculoskeletal pain is increased.

KW - epidemiology

KW - manual handling

KW - questionnaire

KW - LOW-BACK-PAIN

KW - PHYSICAL WORK

KW - RISK-FACTORS

KW - DISORDERS

KW - NECK

KW - VALIDITY

KW - QUESTIONNAIRE

KW - ENVIRONMENT

KW - EMPLOYMENT

KW - SYMPTOMS

U2 - 10.1136/oem.58.6.374

DO - 10.1136/oem.58.6.374

M3 - Editorial

VL - 58

SP - 374

EP - 381

JO - Occupational and Environmental Medicine

JF - Occupational and Environmental Medicine

SN - 1351-0711

ER -