Short-term resistance training with instability reduces impairment in V wave and H reflex in individuals with Parkinson's disease

This study had two objectives: 1) to compare the effects of 3 wk of resistance training (RT) and resistance training with instability (RTI) on evoked reflex responses at rest and during maximal voluntary isometric contraction (MVIC) of individuals with Parkinson's disease (PD) and 2) to determine the effectiveness of RT and RTI in moving values of evoked reflex responses of individuals with PD toward values of age-matched healthy control subjects (HCs) (z-score analysis). Ten individuals in the RT group and 10 in the RTI group performed resistance exercises twice a week for 3 wk, but only the RTI group included unstable devices. The HC group (n = 10) were assessed at pretest only. Evoked reflex responses at rest (H reflex and M wave) and during MVIC [supramaximal M-wave amplitude (Msup) and supramaximal V-wave amplitude (Vsup)] of the plantar flexors were assessed before and after the experimental protocol. From pretraining to posttraining, only RTI increased ratio of maximal H-reflex amplitude to maximal M-wave amplitude at rest (Hmax/Mmax), Msup, Vsup/Msup, and peak torque of the plantar flexors (P < 0.05). At posttraining, RTI was more effective than RT in increasing resting Hmax and Vsup and in moving these values to those observed in HCs (P < 0.05). We conclude that short-term RTI is more effective than short-term RT in modulating H-reflex excitability and in increasing efferent neural drive, approaching average values of HCs. Thus short-term RTI may cause positive changes at the spinal and supraspinal levels in individuals with PD. NEW & NOTEWORTHY Maximal H-reflex amplitude (Hmax) at rest and efferent neural drive [i.e., supramaximal V-wave amplitude (Vsup)] to skeletal muscles during maximal contraction are impaired in individuals with Parkinson's disease. Short-term resistance training with instability was more effective than short-term resistance training alone in increasing Hmax and Vsup of individuals with Parkinson's disease, reaching the average values of healthy control subjects.

Medienart:

E-Artikel

Erscheinungsjahr:

2019

Erschienen:

2019

Enthalten in:

Zur Gesamtaufnahme - volume:127

Enthalten in:

Journal of applied physiology (Bethesda, Md. : 1985) - 127(2019), 1 vom: 01. Juli, Seite 89-97

Sprache:

Englisch

Beteiligte Personen:

Silva-Batista, Carla [VerfasserIn]
Lira, Jumes Leopoldino de Oliveira [VerfasserIn]
David, Fabian J [VerfasserIn]
Corcos, Daniel M [VerfasserIn]
Mattos, Eugenia Casella Tavares [VerfasserIn]
Boari Coelho, Daniel [VerfasserIn]
de Lima-Pardini, Andrea C [VerfasserIn]
Torriani-Pasin, Camila [VerfasserIn]
de Freitas, Tatiana Beline [VerfasserIn]
Ugrinowitsch, Carlos [VerfasserIn]

Links:

Volltext

Themen:

Descending drive
Journal Article
Motor dysfunction
Muscle strength
Reflex arc
Research Support, Non-U.S. Gov't
Unstable device

Anmerkungen:

Date Completed 29.09.2020

Date Revised 29.09.2020

published: Print

Citation Status MEDLINE

doi:

10.1152/japplphysiol.00902.2018

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM299190269