Experimental Brain Research

, Volume 202, Issue 4, pp 891–901 | Cite as

Altered digit force direction during pinch grip following stroke

Research Article

Abstract

This study examined grip force development in individuals with hemiparesis following unilateral stroke. Eleven patients with chronic stroke with severe hand impairment and five age-matched neurologically intact subjects grasped an instrumented object between the index finger and thumb while fingertip forces, digit posture, and muscle electromyographic activity were recorded. We tested a range of different grip conditions with varying grip sizes, object stability, and grip force level. We found that fingertip force direction in the paretic digits deviated from the direction normal to the grip surface by more than twice as much as for asymptomatic digits. Additionally, the paretic thumb had, on average, 18% greater deviation of grip force direction than the paretic index finger. This large deviation of finger force direction for the paretic digits was consistently observed regardless of grip size, grip force level, and object stability. Due to the large deviation of the force direction from the normal direction, the paretic digits slipped and moved more than 1 cm during 55% of all grasping trials. A regression analysis suggests that this altered grip force direction was associated with altered hand muscle activation patterns, but not with the posture at which the digit made contact with the object. Therapies to redirect the force direction at the digits may improve stroke survivors’ ability to stably grip an object.

Keywords

Digit force Force direction Force vector Stroke Prehension Pinch grip 

References

  1. American Heart Association (2005) Heart disease and stroke statistics—2005 update. In. American Heart Association, Dallas, TexGoogle Scholar
  2. Aruin AS (2005) Support-specific modulation of grip force in individuals with hemiparesis. Arch Phys Med Rehabil 86:768–775CrossRefPubMedGoogle Scholar
  3. Blennerhassett JM, Carey LM, Matyas TA (2006) Grip force regulation during pinch grip lifts under somatosensory guidance: comparison between people with stroke and healthy controls. Arch Phys Med Rehabil 87:418–429CrossRefPubMedGoogle Scholar
  4. Bobjer O, Johansson SE, Piguet S (1993) Friction between hand and handle. Effects of oil and lard on textured and non-textured surfaces; perception of discomfort. Appl Ergon 24:190–202CrossRefPubMedGoogle Scholar
  5. Boissy P, Bourbonnais D, Carlotti MM, Gravel D, Arsenault BA (1999) Maximal grip force in chronic stroke subjects and its relationship to global upper extremity function. Clin Rehabil 13:354–362CrossRefPubMedGoogle Scholar
  6. Broderick J, Brott T, Kothari R, Miller R, Khoury J, Pancioli A, Gebel J, Mills D, Minneci L, Shukla R (1998) The Greater Cincinnati/Northern Kentucky Stroke Study: preliminary first-ever and total incidence rates of stroke among blacks. Stroke 29:415–421PubMedGoogle Scholar
  7. Brunnstrom S (1970) Movement therapy in hemiplegia: a neurophysiological approach. Medical Dept. Harper & Row, New YorkGoogle Scholar
  8. Buchholz B, Frederick LJ, Armstrong TJ (1988) An investigation of human palmar skin friction and the effects of materials, pinch force and moisture. Ergonomics 31:317–325CrossRefPubMedGoogle Scholar
  9. Chae J, Bethoux F, Bohine T, Dobos L, Davis T, Friedl A (1998) Neuromuscular stimulation for upper extremity motor and functional recovery in acute hemiplegia. Stroke 29:975–979PubMedGoogle Scholar
  10. Cordo P, Gandevia SC, Hales JP, Burke D, Laird G (1993) Force and displacement-controlled tendon vibration in humans. Electroencephalogr Clin Neurophysiol 89:45–53CrossRefPubMedGoogle Scholar
  11. Cruz EG, Waldinger HC, Kamper DG (2005) Kinetic and kinematic workspaces of the index finger following stroke. Brain 128:1112–1121CrossRefPubMedGoogle Scholar
  12. Fisher NI (1993) Statistical analysis of circular data. Cambridge University Press, CambridgeGoogle Scholar
  13. Gordon AM, Forssberg H, Johansson RS, Westling G (1991) Integration of sensory information during the programming of precision grip: comments on the contributions of size cues. Exp Brain Res 85:226–229CrossRefPubMedGoogle Scholar
  14. Gowland C, VanHullenaar S, Torresin W, Moreland J, Vanspall B, Barrecca S, Ward M, Huijbregts M, Stratford P, Barclay-Goddard R (1995) Chedoke-McMaster stroke assessment: development, validation and administration manual. Chedoke-McMaster Hospitals and McMaster University, HamiltonGoogle Scholar
  15. Gray CS, French JM, Bates D, Cartlidge NE, James OF, Venables G (1990) Motor recovery following acute stroke. Age Ageing 19:179–184CrossRefPubMedGoogle Scholar
  16. Hermsdorfer J, Hagl E, Nowak DA, Marquardt C (2003) Grip force control during object manipulation in cerebral stroke. Clin Neurophysiol 114:915–929CrossRefPubMedGoogle Scholar
  17. Jobe MT (2007) Chapter 65—nerve injuries. In: Canale ST, Beaty JH (eds) Campbell’s operative orthopaedics, vol IV. Mosby Elsevier, Philadelphia, pp 3981–3984Google Scholar
  18. Johanson ME, Valero-Cuevas FJ, Hentz VR (2001) Activation patterns of the thumb muscles during stable and unstable pinch tasks. J Hand Surg [Am] 26:698–705CrossRefGoogle Scholar
  19. Johansson RS, Westling G (1984) Roles of glabrous skin receptors and sensorimotor memory in automatic control of precision grip when lifting rougher or more slippery objects. Exp Brain Res 56:550–564CrossRefPubMedGoogle Scholar
  20. Kamper DG, Rymer WZ (2000) Quantitative features of the stretch response of extrinsic finger muscles in hemiparetic stroke. Muscle Nerve 23:954–961CrossRefPubMedGoogle Scholar
  21. Kamper DG, Rymer WZ (2001) Impairment of voluntary control of finger motion following stroke: role of inappropriate muscle coactivation. Muscle Nerve 24:673–681CrossRefPubMedGoogle Scholar
  22. Kamper DG, Harvey RL, Suresh S, Rymer WZ (2003) Relative contributions of neural mechanisms versus muscle mechanics in promoting finger extension deficits following stroke. Muscle Nerve 28:309–318CrossRefPubMedGoogle Scholar
  23. Kamper DG, Fischer HC, Cruz EG (2006) Impact of finger posture on mapping from muscle activation to joint torque. Clin Biomech (Bristol, Avon) 21:361–369CrossRefGoogle Scholar
  24. Lang CE, Schieber MH (2003) Differential impairment of individuated finger movements in humans after damage to the motor cortex or the corticospinal tract. J Neurophysiol 90:1160–1170CrossRefPubMedGoogle Scholar
  25. Lang CE, Schieber MH (2004) Reduced muscle selectivity during individuated finger movements in humans after damage to the motor cortex or corticospinal tract. J Neurophysiol 91:1722–1733CrossRefPubMedGoogle Scholar
  26. Lee SW, Chen H, Towles JD, Kamper DG (2008) Estimation of the effective static moment arms of the tendons in the index finger extensor mechanism. J Biomech 41:1567–1573CrossRefPubMedGoogle Scholar
  27. Magee DJ (2008) Chapter 7—forearm, wrist, and hand. In: Magee DJ (ed) Orthopedic physical assessment. Saunders Elsevier, St. Louis, pp 396–470Google Scholar
  28. Milner TE, Dhaliwal SS (2002) Activation of intrinsic and extrinsic finger muscles in relation to the fingertip force vector. Exp Brain Res 146:197–204CrossRefPubMedGoogle Scholar
  29. Monzee J, Lamarre Y, Smith AM (2003) The effects of digital anesthesia on force control using a precision grip. J Neurophysiol 89:672–683CrossRefPubMedGoogle Scholar
  30. Nakayama H, Jorgensen HS, Raaschou HO, Olsen TS (1994a) Compensation in recovery of upper extremity function after stroke: the Copenhagen Stroke Study. Arch Phys Med Rehabil 75:852–857CrossRefPubMedGoogle Scholar
  31. Nakayama H, Jorgensen HS, Raaschou HO, Olsen TS (1994b) Recovery of upper extremity function in stroke patients: the Copenhagen Stroke Study. Arch Phys Med Rehabil 75:394–398CrossRefPubMedGoogle Scholar
  32. Nowak DA, Hermsdorfer J (2005) Grip force behavior during object manipulation in neurological disorders: toward an objective evaluation of manual performance deficits. Mov Disord 20:11–25CrossRefPubMedGoogle Scholar
  33. Nowak DA, Hermsdorfer J, Topka H (2003) Deficits of predictive grip force control during object manipulation in acute stroke. J Neurol 250:850–860CrossRefPubMedGoogle Scholar
  34. O’Dwyer NJ, Ada L, Neilson PD (1996) Spasticity and muscle contracture following stroke. Brain 119(Pt 5):1737–1749CrossRefPubMedGoogle Scholar
  35. Parker VM, Wade DT, Langton Hewer R (1986) Loss of arm function after stroke: measurement, frequency, and recovery. Int Rehabil Med 8:69–73PubMedGoogle Scholar
  36. Pearlman JL, Roach SS, Valero-Cuevas FJ (2004) The fundamental thumb-tip force vectors produced by the muscles of the thumb. J Orthop Res 22:306–312CrossRefPubMedGoogle Scholar
  37. Pendleton HM (2006) Chapter 22 evaluation of sensation and intervention for sensory dysfunction. In: Pendleton HM, Schultz-Krohn W (eds) Pedretti’s occupational therapy: practice skills for physical dysfunction. Elsevier Health Sciences, PhiladelphiaGoogle Scholar
  38. Penfield W, Boldrey E (1937) Somatic motor sensory representation in the cerebral cortex of man as studied by electrical stimulation. Brain J Neurol 60:389–443Google Scholar
  39. Penfield W, Rasmussen T (1950) The cerebral cortex of man: a clinical study of localization of function. Macmillan, New YorkGoogle Scholar
  40. Scelsi R, Lotta S, Lommi G, Poggi P, Marchetti C (1984) Hemiplegic atrophy. Morphological findings in the anterior tibial muscle of patients with cerebral vascular accidents. Acta Neuropathol 62:324–331CrossRefPubMedGoogle Scholar
  41. Seo NJ (2009) Dependence of safety margins in grip force on isometric push force levels in lateral pinch. Ergonomics 52:840–847CrossRefPubMedGoogle Scholar
  42. Seo NJ, Armstrong TJ (2009) Friction coefficients in a longitudinal direction between the finger pad and selected materials for different normal forces and curvatures. Ergonomics 52:609–616CrossRefPubMedGoogle Scholar
  43. Seo NJ, Armstrong TJ, Drinkaus P (2009) A comparison of two methods of measuring static coefficient of friction at low normal forces: a pilot study. Ergonomics 52:121–135CrossRefPubMedGoogle Scholar
  44. Sivamani RK, Goodman J, Gitis NV, Maibach HI (2003) Friction coefficient of skin in real-time. Skin Res Technol 9:235–239CrossRefPubMedGoogle Scholar
  45. Thom T, Haase N, Rosamond W, Howard VJ, Rumsfeld J, Manolio T, Zheng ZJ, Flegal K, O’Donnell C, Kittner S (2006) Heart disease and stroke statistics-2006 update A Report From the American Heart Association Statistics Committee and Stroke Statistics Subcommittee. In, vol 113. Am Heart AssocGoogle Scholar
  46. Trombly CA (1989) Stroke. In: Occupational therapy for physical dysfunction. Williams & Wilkins, Baltimore, pp 454–471Google Scholar
  47. Valero-Cuevas FJ (2000) Predictive modulation of muscle coordination pattern magnitude scales fingertip force magnitude over the voluntary range. J Neurophysiol 83:1469–1479PubMedGoogle Scholar
  48. Valero-Cuevas FJ, Towles JD, Hentz VR (2000) Quantification of fingertip force reduction in the forefinger following simulated paralysis of extensor and intrinsic muscles. J Biomech 33:1601–1609CrossRefPubMedGoogle Scholar
  49. Westling G, Johansson RS (1984) Factors influencing the force control during precision grip. Exp Brain Res 53:277–284CrossRefPubMedGoogle Scholar
  50. Woodbury ML, Velozo CA, Richards LG, Duncan PW, Studenski S, Lai SM (2007) Dimensionality and construct validity of the Fugl-Meyer assessment of the upper extremity. Arch Phys Med Rehabil 88:715–723CrossRefPubMedGoogle Scholar
  51. Woodson AM (2002) Stroke. In: Trombly CA (ed) Occupational therapy for physical dysfunction. Lippincott, Williams & Wilkins, Philadelphia, pp 817–853Google Scholar
  52. Woolsey CN, Settlage PH, Meyer DR, Sencer W, Hamuy TP, Travis AM (1952) Patterns of localization in precentral and “supplementary” motor areas and their relation to the concept of a premotor area. Res Publ Assoc Res Nerv Ment Dis 30:238–264PubMedGoogle Scholar
  53. Woolsey CN, Erickson TC, Gilson WE (1979) Localization in somatic sensory and motor areas of human cerebral cortex as determined by direct recording of evoked potentials and electrical stimulation. J Neurosurg 51:476–506CrossRefPubMedGoogle Scholar

Copyright information

© Springer-Verlag 2010

Authors and Affiliations

  • Na Jin Seo
    • 1
    • 2
  • William Z. Rymer
    • 2
  • Derek G. Kamper
    • 2
    • 3
  1. 1.Department of Industrial EngineeringUniversity of Wisconsin-MilwaukeeMilwaukeeUSA
  2. 2.Sensory Motor Performance ProgramRehabilitation Institute of ChicagoChicagoUSA
  3. 3.Department of Biomedical EngineeringIllinois Institute of TechnologyChicagoUSA

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