Experimental Brain Research

, Volume 237, Issue 12, pp 3265–3271 | Cite as

Jendrassik maneuver effect on spinal and brainstem reflexes

  • Lale Aslihan Ertuglu
  • Asli Aydin
  • Hatice KumruEmail author
  • Josep Valls-Sole
  • Eloy Opisso
  • Serpil Cecen
  • Kemal S. Türker
Research Article


The effect of Jendrassik Maneuver (JM) has been extensively studied on monosynaptic reflexes in numerous muscles below the level at which the maneuver was performed. Here we hypothesize that the effect of JM could be observed also on other reflexes, indicating a widespread influence of performing a motor act such as the JM. We examined polysynaptic reflexes caudal (i.e., the withdrawal reflex of the lower extremities) and rostral (i.e., the blink reflex to supraorbital nerve stimulation) to the level of JM contraction. We have assessed soleus tendon (T) reflex; withdrawal reflex in tibialis anterior and soleus muscle; blink reflex (BR), blink reflex excitability recovery curve (BR-ER) and prepulse inhibition of the blink reflex. Our results showed that (1) T-reflex amplitude increased during JM and decreased just after and 15 min after JM; (2) no change in the withdrawal reflex; (3) R2 area of BR reduced significantly just after or 15 min after JM; (4) Prepulse inhibition in BR reduced significantly during JM; (5) no change in BR-ER. Our results indicate that JM leads to generalized effects on neural excitability at both caudal and rostral levels. Furthermore, JM has a selective effect on excitability of reflex circuitries.


Jendrassik maneuver Tendon reflex Brainstem reflexes Monosynaptic Polysynaptic reflexes 



This work was supported by Erasmus + Internship program. We are grateful to Erasmus for providing this scholarship to Lale Aslihan Ertuglu and Asli Aydin.

Compliance with ethical standards

Conflict of interests

The authors declare that they have no competing interests.

Ethical standards

We confirm that we have read the Journal’s position on issues involved in ethical publication and affirm that this report is consistent with those guidelines.


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Lale Aslihan Ertuglu
    • 1
  • Asli Aydin
    • 1
  • Hatice Kumru
    • 2
    • 3
    • 4
    Email author
  • Josep Valls-Sole
    • 5
  • Eloy Opisso
    • 2
    • 3
    • 4
  • Serpil Cecen
    • 6
  • Kemal S. Türker
    • 1
  1. 1.Koç University School of MedicineIstanbulTurkey
  2. 2.Fundación Institut Guttmann, Institut Universitari de Neurorehabilitació adscrit a la UAB, Fundación Institut GuttmannHospital de NeurorehabilitacióBadalonaSpain
  3. 3.Univ Autonoma de BarcelonaBarcelonaSpain
  4. 4.Fundació Institut d’Investigació en Ciències de la Salut Germans Trias i PujolBadalonaSpain
  5. 5.EMG DepartmentHospital ClinicBarcelonaSpain
  6. 6.Education and Research HospitalMarmara UniversityIstanbulTurkey

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