title: Three months of resistance training in overweight and obese individuals improves reactive balance control under unstable conditions.
abstract: BACKGROUND
  Contrary to static and dynamic balance, there is a lack of scientific evidence on the training induced changes in reactive balance control in response to unexpected perturbations in overweight and obese individuals.
  
  
  OBJECTIVE
  This study evaluates the effect of 3 months of resistance and aerobic training programs on postural responses to unexpected perturbations under stable and unstable conditions in the overweight and obese.
  
  
  METHODS
  A group of 17 overweight and obese subjects, divided into two groups, underwent either resistance or aerobic training for a period of 3 months (3 sessions per week). Prior to and after completing the training, they performed the load release balance test while standing on either a stable or unstable surface, with eyes open and closed.
  
  
  RESULTS
  Peak posterior center of pressure (CoP) displacement, and the time to peak posterior CoP displacement during a bipedal stance on a foam surface with eyes open (17.3%, p = 0.019 and 15.4%, p = 0.029) and eyes closed (15.0%, p = 0.027 and 13.2%, p = 0.034), decreased significantly. In addition, the total anterior to posterior CoP displacement, and the time from peak anterior to peak posterior CoP displacement, both with eyes open (18.1%, p = 0.017 and 12.2%, p = 0.040) and eyes closed (16.3%, p = 0.023 and 11.7%, p = 0.044), also significantly decreased. However, after completing the resistance training, the parameters registered while standing on a stable platform, both with eyes open and closed, did not change significantly. The group that underwent an aerobic training also failed to show any significant changes in parameters of the load release balance test.
  
  
  CONCLUSIONS
  Three months of resistance training in overweight and obese subjects improves reactive balance control in response to unexpected perturbations under unstable conditions, both with and without visual cues. Due to the fact that this unstable load release balance test was found to be sensitive in revealing post-training changes, it would be suitable for implementing in the functional diagnostic for this group, in addition to complementing existing testing methods.
authors.affiliation: Faculty of Physical Education and Sports, Comenius University in Bratislava, Slovakia.
authors.forename: Erika
authors.initials: E
authors.lastname: Zemková
authors.affiliation: Faculty of Physical Education and Sports, Comenius University in Bratislava, Slovakia.
authors.forename: Ol'ga
authors.initials: O
authors.lastname: Kyselovičová
authors.affiliation: Faculty of Physical Education and Sports, Comenius University in Bratislava, Slovakia.
authors.forename: Michal
authors.initials: M
authors.lastname: Jeleň
authors.affiliation: Faculty of Physical Education and Sports, Comenius University in Bratislava, Slovakia.
authors.forename: Zuzana
authors.initials: Z
authors.lastname: Kováčiková
authors.affiliation: Faculty of Physical Education and Sports, Comenius University in Bratislava, Slovakia.
authors.forename: Gábor
authors.initials: G
authors.lastname: Ollé
authors.affiliation: Faculty of Physical Education and Sports, Comenius University in Bratislava, Slovakia.
authors.forename: Gabriela
authors.initials: G
authors.lastname: Řtefániková
authors.affiliation: Faculty of Physical Education and Sports, Comenius University in Bratislava, Slovakia.
authors.forename: Tomáš
authors.initials: T
authors.lastname: Vilman
authors.affiliation: Slovak Academy of Sciences, Institute of Experimental Endocrinology, Bratislava, Slovakia.
authors.forename: Miroslav
authors.initials: M
authors.lastname: Baláž
authors.affiliation: Slovak Academy of Sciences, Institute of Experimental Endocrinology, Bratislava, Slovakia.
authors.forename: Timea
authors.initials: T
authors.lastname: Kurdiová
authors.affiliation: Slovak Academy of Sciences, Institute of Experimental Endocrinology, Bratislava, Slovakia.
authors.forename: Jozef
authors.initials: J
authors.lastname: Ukropec
authors.affiliation: Slovak Academy of Sciences, Institute of Experimental Endocrinology, Bratislava, Slovakia.|Institute of Pathological Physiology, Faculty of Medicine, Comenius University in Bratislava, Slovakia.
authors.forename: Barbara
authors.initials: B
authors.lastname: Ukropcová
mesh_terms: D000328:Adult; D006801:Humans; D008297:Male; D009765:Obesity / Q000503:physiopathology*; D050177:Overweight / Q000503:physiopathology*; D004856:Postural Balance / Q000502:physiology*; D011187:Posture / Q000502:physiology*; D055070:Resistance Training / Q000379:methods*
keywords: Center of pressure; obesity; perturbation; postural responses; resistance exercises