Surface EMG of shoulder and back muscles and posture analysis in secretaries typing at visual display units

International Archives of Occupational and Environmental Health

Volumn 72, Issue 6, 1999, Pages 387-394

  Kleine, B U ^a   Schumann, N P ^a   Bradl, I ^b   Grieshaber, R ^c   Scholle, H C ^a  

^a FRIEDRICH SCHILLER UNIVERSITY JENA   (Germany)

^b Prevention Department   (Germany)

^c Prevention Department   (Germany)

Author keywords

Fatigue; Posture; Surface electromyography; Trapezius; Visual display unit (VDU)

Indexed keywords

ACROMION; ADULT; ANALYTICAL EQUIPMENT; ARTICLE; ATTENTION; BACK MUSCLE; BODY MOVEMENT; BODY POSTURE; CERVICAL SPINE; DELTOID MUSCLE; ELECTROMYOGRAPHY; FEMALE; HUMAN; MATHEMATICAL ANALYSIS; MUSCLE CONTRACTION; MUSCLE FATIGUE; MYOELECTRICITY; NORMAL HUMAN; OFFICE WORKER; POWER SPECTRUM; REGRESSION ANALYSIS; SHOULDER GIRDLE; SITTING; STERNOCLEIDOMASTOID MUSCLE; TRAPEZIUS MUSCLE; ULTRASOUND; VISUAL DISPLAY UNIT;

ADULT; ANALYSIS OF VARIANCE; BACK; COMPUTER TERMINALS; ELECTROMYOGRAPHY; FEMALE; HUMANS; LINEAR MODELS; MUSCLE, SKELETAL; MUSCULOSKELETAL DISEASES; OCCUPATIONAL DISEASES; POSTURE; SHOULDER; TIME FACTORS;

EID: 0032864650     PISSN: 03400131     EISSN: None     Source Type: Journal    
DOI: 10.1007/s004200050390     Document Type: Article

References (52)

1. Anders C, Bradl I, Schumann NP, Grosch J, Scholle HC (1996) Elektromyographische Untersuchungen zur Belastungssituation der Rückenmuskulatur während Hebearbeiten. In: Radant S, Grieshaber R, Schneider W (eds) Prävention von berufs- und arbeitsbedingten Gesundheitsstörungen und Erkrankungen - 2. Erfurter Tage. Monade, Leipzig, pp 271-281
2. Anders C, Schumann NP, Scholle HC, Witte H, Zwiener U (1991) Quantifizierung von Artefakten im Oberflächen EMG zur Validisierung der unteren Grenzfrequenz bei klinisch physiologischen Untersuchungen. Z EEG-EMG 22: 40-44
3. Anders C, Bradl I, Grosch J, Schumann NP, Scholle HC, Grieshaber R (1997) Heben von Lasten - Ergebnisse einer bi- und monopolaren polyelektromyographischen Studie an definierten Probandengruppen. In: Radant S, Grieshaber R, Schneider W (eds) Prävention von arbeitsbedingten Gesundheitsgefahren und Erkrankungen - 3. Erfurter Tage. Monade, Leipzig, pp 273-282
4. Bansevicius D, Westgaard RH, Jensen C (1997) Mental stress of long duration: Emg activity, perceived tension, fatigue, and pain development in pain free subjects. Headache 37: 499-510
5. Basmajian JV, De Luca CJ (1985) Muscles alive; their functions revealed by electromyography. Williams & Wilkins, Baltimore Bergqvist U, Wolgast E, Nilsson B, Voss M (1995a) The influence of VDT work on musculoskeletal disorders. Ergonomics 38: 754-762
6. Bergqvist U, Wolgast E, Nilsson B, Voss M (1995b) Musculoskeletal disorders among visual display terminal workers: individual, ergonomic, and work organizational factors. Ergonomics 38: 763-776
7. Caffier G, Heinecke D, Hinterthan R (1993) Surface EMG and load level during long-lasting static contractions of low intensity. Int J Ind Ergon 12: 77-83
8. De Luca CJ, Erim Z (1994) Common drive of motor units in regulation of muscle force. Trends Neurosci 17: 299-305
9. Enoka RM (1995) Morphological features and activation patterns of motor units. J Clin Neurophysiol 12: 538-559
10. Enoka RM (1997) Neural strategies in the control of muscle force. Muscle Nerve Suppl 5: S66-S69
11. Faucett J, Rempel D (1994) VDT-related musculoskeletal symptoms: interactions between work posture and psychosocial work factors. Am J Ind Med 26: 597-612
12. Feng Y, Grooten W, Wretenberg P, Arborelius UP (1997) Effects of arm support on shoulder and arm muscle activity during sedentary work. Ergonomics 40: 834-848
13. Fernström E, Ericson MO, Malker H (1994) Electromyographic activity during typewriter and keyboard use. Ergonomics 37 477-484
14. Gandevia SC (1998) Neural control in human muscle fatigue: changes in muscle afferents, motoneurones and motocortical drive. Acta Physiol Scand 162: 275-283
15. Gerdle B, Fugl-Meyer AR (1992) Is the mean power frequency shift of the EMG a selective indicator of fatigue of the fast twitch motor units? Acta Physiol Scand 145: 129-138
16. Gerdle B, Henriksson Larsen K, Lorentzon R, Wretling ML (1991) Dependence of the mean power frequency of the electromyogram on muscle force and fibre type. Acta Physiol Scand 142: 457-465
17. Gerdle B, Edström M, Rahm M (1993) Fatigue in the shoulder muscles during static work at two different torque levels. Clin Physiol 13: 469-482
18. Hägg GM (1992) Interpretation of EMG spectral alterations and alteration indexes at sustained contraction. J Appl Physiol 73: 1211-1217
19. Hägg GM, Aström A (1997) Load pattern and pressure pain threshold in the upper trapezius muscle and psychosocial factors in medical secretaries with and without shoulder/neck disorders. Int Arch Occup Environ Health 69: 423-432
20. Hales TR, Sauter SL, Peterson MR, Fine LJ, Putz-Anderson V, Schleifer LR, Ochs TT, Bernard BP (1994) Musculoskeletal disorders among visual display terminal users in a telecommunications company. Ergonomics 37: 1603-1621
21. Hermans V, Spaepen AJ (1995) Percieved discomfort and electromyographic activity of the upper trapezius while working at a VDT station. Int J Occup Saf Ergon 1: 208-214
22. Ignatius YT, Yee TY, Yan LT (1993) Self reported musculoskeletal problems amongst typist and possible risk factors. J Hum Ergol Tokyo 22: 83-93
23. Jensen C, Nilsen K, Hansen K, Westgaard RH (1993a) Trapezius muscle load as a risk indicator for occupational shoulder-neck complaints. Int Arch Occup Environ Health 64: 415-423
24. Jensen C, Vasseljen O, Westgaard RH (1993b) The influence of electrode position on bipolar surface electromyogram recordings of the upper trapezius muscle. Eur J Appl Physiol 67: 266-273
25. Jonsson B (1978) Quantitative electromyographic evaluation of muscular load during work. Scand J Rehabil Med Suppl 6: 69-74
26. Jorgensen K, Fallentin N, Krogh-Lund C, Jensen B (1988) Electromyography and fatigue during prolonged, low-level static contractions. Eur J Appl Physiol 57: 316-321
27. Kamwendo K, Linton SJ, Moritz U (1991a) Neck and shoulder disorders in medical secretaries. Part I. Pain prevalence and risk factors. Scand J Rehabil Med 23: 127-133
28. Kamwendo K, Linton SJ, Moritz U (1991b) Neck and shoulder disorders in medical secretaries. Part II. Ergonomical work environment and symptom profile. Scand J Rehabil Med 23: 135-142
29. Kernell D (1992) Organized variability in the neuromuscular system: a survey of task-related adaptations. Arch Ital Biol 130: 19-66
30. Krogh-Lund C (1993) Myo-electric fatigue and force failure from submaximal static elbow flexion sustained to exhaustion. Eur J Appl Physiol 67: 389-401
31. Krogh-Lund C, Jorgensen K (1992) Modification of myo-electric power spectrum in fatigue from 15% maximal voluntary contraction of human elbow flexor muscles, to limit of endurance: reflection of conduction velocity variation and/or centrally mediated mechanisms? Eur J Appl Physiol 64: 359-370
32. Krogh-Lund C, Jorgensen K (1993) Myo-electric fatigue manifestations revisited: power spectrum, conduction velocity, and amplitude of human elbow flexor muscles during isolated and repetitive endurance contractions at 30% maximal voluntary contraction. Eur J Appl Physiol 66: 161-173
33. Luttmann A, Jäger M, Sokeland J, Laurig W (1996) Electromyographical study on surgeons in urology. II. Determination of muscular fatigue. Ergonomics 39: 298-313
34. Mannion AF, Dolan P (1996) The effects of muscle length and force output on the EMG power spectrum of the erector spinae. J Electromyogr Kinesiol 6: 159-168
35. Mathiassen SE, Winkel J (1991) Quantifying variation in physical load using exposure-vs-time data. Ergonomics 34: 1455-1468
36. Mathiassen SE, Winkel J, Hägg GM (1995) Normalisation of surface EMG amplitude from the upper trapezius muscle in ergonomic studies - a review. J Electromyogr Kinesiol 5: 197-226
37. Merletti R, LoConte LR, Orizo C (1991) Indices of muscle fatigue. J Electromyogr Kinesiol 1: 20-33
38. Öberg T, Sandsjö L, Kadefors R (1994) Subjective and objective evaluation of shoulder muscle fatigue. Ergonomics 37: 1323-1333
39. Scholle HC, Anders C, Bradl I, Kankaanpää M, Schreiber U, Hänninen O, Schumann NP, Grosch J, Schneider W (1998) An electrophysiological approach for the characterization of muscle activation patterns during weight lifting in a working life situation. In: Kumar S (ed) Advances in occupational ergonomics and safety 2. IOS Press, Amsterdam, pp 214-217
40. Schumann NP, Richter A, Glaser S, Zwiener U, Misselwitz I (1988a) The specific EMG activity of masticatory muscles in response to psychic and mental load and psychic factors in neurotics. Activitas Nervosa Superior 30: 140-143
41. Schumann NP, Zwiener U, Nebrich A (1988b) Personality and quantified neuromuscular activity of the masticatory system in patients with temporomandibular joint dysfunction. J Oral Rehabil 15: 35-47
42. Smith MJ (1997) Psychosocial aspects of working with video display terminals (VDTs) and employe physical and mental health. Ergonomics 40: 1002-1015
43. Sundelin G, Hagberg M (1989) The effects of different pause types on neck and shoulder EMG activity during VDU work. Ergonomics 32: 527-537
44. Traue HC, Kessler M, Cram JR (1992) Surface EMG topography and pain distribution in pre-chronic back pain patients. Int J Psychosom 39: 18-27
45. Vasseljen O Jr, Westgaard RH (1995a) Can stress-related shoulder and neck pain develop independently of muscle activity? Pain 64: 221-230
46. Vasseljen O, Westgaard RH (1995b) A case-control study of trapezius muscle activity in office and manual workers with shoulder and neck pain and symptom-free controls. Int Arch Occup Environ Health 67: 11-18
47. Waersted M, Westgaard RH (1996) Attention-related muscle activity in different body regions during VDU work with minimal physical activity. Ergonomics 39: 661-676
48. Waersted M, Eken T, Westgaard RH (1996) Activity of single motor units in attention-demanding tasks: firing pattern in the human trapezius muscle. Eur J Appl Physiol 72: 323-329
49. Westgaard RH (1996) Non-voluntary muscle activity and myofascial pain syndromes. In: Bostock H, Kirkwood PA, Pullen AH (eds) The neurobiology of disease: contributions from neuroscience to clinical neurology. University Press, Cambridge, UK, pp 169-176
50. Westgaard RH, Jensen C, Hansen K (1993) Individual and work-related risk factors associated with symptoms of musculoskeletal complaints. Int Arch Occup Environ Health 64: 405-413
51. Yu IT, Wong TW (1996) Musculoskeletal problems among VDU workers in a Hong Kong bank. Occup Med Oxf 46: 275-280
52. Zipp P (1982) Effect of electrode geometry on the selectivity of myoelectric recordings with surface electrodes. Eur J Appl Physiol 50: 35-40