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Journal of applied physiology v.122 no.1, 2017년, pp.1 - 10   SCI SCIE
본 등재정보는 저널의 등재정보를 참고하여 보여주는 베타서비스로 정확한 논문의 등재여부는 등재기관에 확인하시기 바랍니다.

Resistance training with instability is more effective than resistance training in improving spinal inhibitory mechanisms in Parkinson’s disease

#x0301;úáãããããããããããão Paulo, Brazil <SUP>5</SUP>Exercise Hemodynamic Laboratory, School of Physical Education and Sport, University of Séúáãããããão Paulo at Séúáããããããão Paulo, Séúáãããããããão Paulo, Brazil <SUP>1</SUP>Laboratory of Adaptations to Strength Training, School of Physical Education and Sport, University of Séúáããão Paulo at Séúáãããão Paulo, Séúáããããão Paulo, Brazil <SUP>1</SUP>Laboratory of Adaptations to Strength Training, School of Physical Education and Silva-Batista, Carla ; Mattos, Eugenia Casella Tavares ; Corcos, Daniel M. ; Wilson, Jessica M. ; Heckman, Charles J. ; Kanegusuku, Hélcio ; Piemonte, Maria Elisa Pimentel ; Téúlio de Mello, Marco ; Forjaz, Cléúáudia ; Roschel, Hamilton ; Tricoli, Valmor ; Ugrinowitsch, Carlos ;
  • 초록  

    Patients with Parkinson’s disease (PD) have motor dysfunction. Spinal inhibitory mechanisms are important for modulating both supraspinal motor commands and sensory feedback at the spinal level. Resistance training with instability was more effective than resistance training in increasing the levels of presynaptic inhibition and disynaptic reciprocal inhibition of lower limb at rest of the patients with PD, reaching the average values of the healthy controls. This study assessed 1 ) the effects of 12 wk of resistance training (RT) and resistance training with instability (RTI) on presynaptic inhibition (PSI) and disynaptic reciprocal inhibition (DRI) of patients with Parkinson’s disease (PD); 2 ) the effectiveness of RT and RTI in moving PSI and DRI values of patients toward values of age-matched healthy controls (HC; Z-score analysis); and 3 ) associations between PSI and DRI changes and clinical outcomes changes previously published. Thirteen patients in RT group, 13 in RTI group, and 11 in a nonexercising control group completed the trial. While RT and RTI groups performed resistance exercises twice a week for 12 wk, only the RTI group used unstable devices. The soleus H reflex was used to evaluate resting PSI and DRI before and after the experimental protocol. The HC ( n = 31) was assessed at pretest only. There were significant group × time interactions for PSI ( P < 0.0001) and DRI ( P < 0.0001). RTI was more effective than RT in increasing the levels of PSI ( P = 0.0154) and DRI ( P < 0.0001) at posttraining and in moving PSI [confidence interval (CI) 0.1–0.5] and DRI (CI 0.6–1.1) levels to those observed in HC. There was association between DRI and quality of life changes ( r = −0.69, P = 0.008) and a strong trend toward association between PSI and postural instability changes ( r = 0.60, P = 0.051) after RTI. RTI increased PSI and DRI levels more than RT, reaching the average values of the HC. Thus RTI may cause plastic changes in PSI and DRI pathways that are associated with some PD clinical outcomes. NEW & NOTEWORTHY Patients with Parkinson’s disease (PD) have motor dysfunction. Spinal inhibitory mechanisms are important for modulating both supraspinal motor commands and sensory feedback at the spinal level. Resistance training with instability was more effective than resistance training in increasing the levels of presynaptic inhibition and disynaptic reciprocal inhibition of lower limb at rest of the patients with PD, reaching the average values of the healthy controls.


  • 주제어

    motor complexity exercise .   presynaptic inhibition .   disynaptic reciprocal inhibition .   descending drive .   proprioception.  

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