Person: AVCI, ENDER ERSİN
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AVCI
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ENDER ERSİN
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Publication Open Access The relationship between sit-to-stand task and fat tissue & lean body mass(2020-10-01) AVCI, ENDER ERSİN; AKGÜN, İREM; DEMİRBÜKEN, İLKŞAN; TİMURTAŞ, EREN; POLAT, MİNE GÜLDEN; Timurtaş E., Demirbüken İ., Avcı E. E., Akgün İ., Polat M. G.Publication Open Access Postural stability during quiet standing in obese and non-obese adults with type 2 diabetes mellitus(2020-09-01) AVCI, ENDER ERSİN; AKGÜN, İREM; TİMURTAŞ, EREN; POLAT, MİNE GÜLDEN; DEMİRBÜKEN, İLKŞAN; TİMURTAŞ E., DEMİRBÜKEN İ., AVCI E. E., AKGÜN İ., POLAT M. G.1. Introduction Diabetes which is a major health problem is related to impaired postural control due to peripheral neuropathy [1]. Obesity, another common health problem, is also found to be inseparably connected with postural instability. In particular, excessive body weight is demonstrated to significantly influence postural stability by altering center of mass position in the body. Impaired postural stability in T2DM and obesity has been documented separately by recent evidence [2,3]. We hypothesized that obesity would worsen the postural stability especially in adults who were diagnosed with T2DM. Therefore, the purpose of the current study was to investigate the possible impact of obesity on postural stability during quite standing in both obese and non-obese adults with T2DM. 2. Research question How does obesity influence the postural stability in adults with T2DM by means of sway velocity of center of mass during quite standing? 3. Methods The study was conducted at Fatih Sultan Mehmet Hospital Diabetes and Obesity Center in Istanbul, Turkey. Sixty-five adults (obese 37 adults with BMI ≥ 30 kg/m2 , non-obese 27 adults with BMI < 30 kg/ m2 ) who had no any musculoskeletal and neurological disorder were recruited. Modified Clinical Test of Sensory Interaction in Balance test among Balance Master System (NeuroCom, USA) was used to evaluate the postural stability. The sway velocity (degrees/second) of center of mass was measured on firm surface on firm and foam surface with eyes open (EO) and eyes closed (EC) conditions by the system. We created binary outcome according to normative scores. We performed logistic regression to estimate which groups has greater risk. 4. Results Number of people who had under normative scores in obese adults with diabetes; 14 (37,8%) in EO and 10 (27,0%) in EC on firm surface; 17 (45,9%) in EO and 34 (91,9%) in EC on foam surfaces; 26 (%70,3) in composite score. For non-obese adults with diabetes; 2 (7,4%) in EO and 8 (29,6%) in EC on firm surface; 9 (33,3%) in EO and 22 (81,5%) in EC on foam surfaces; 17 (%63,0) in composite score were determined. Obesity was higher risk eyes open scores in firm surface EO (OR:1.49 CI:1.13-1.96) but not in firm surface EC (OR:0.96 CI:0.70-1.32), firm surface with EO (OR:1.23 CI:0.82-1.84), firm surface with EC (OR:2.28 CI:0.60-8.75), composite score (OR: 1.26 CI:0.62-2.50). 5. Discussion Findings of current study revealed that obesity in T2DM is an important concern for deteriorating postural stability during quite standing. Interestingly standing with more demanding conditions as foam surface and/or eyes closed did not disturb postural sway of remarkable distinct percentages. It is noteworthy to pronounce that maintaining normal body weight in T2DM would encourage better postural stability in quite standing. An understanding of the obesity and its effect on postural stability in T2DM would provide another aspect for future intervention approaches for this population.Publication Open Access Robot-assisted therapy for upper extremity rehabilitation in Erb-Duchenne palsy: A case report(2020-10-01) AVCI, ENDER ERSİN; AKGÜN, İREM; TİMURTAŞ, EREN; DEMİRBÜKEN, İLKŞAN; POLAT, MİNE GÜLDEN; Akgün İ., Avcı E. E., Timurtaş E., Demirbüken İ., Polat M. G.Erb-Duchenne palsy (EDP), happens during a difficult birth due to the lesion in the upper brachial plexus (involving 5thand 6th, and rarely 7th cervical nerve roots), is characterized by muscle weakness and loss of motor functions in the affected upper extremity. While some injuries are temporary with full recovery, some may be lifelong resulting in significant functional limitations in daily life [1]. Various conservative rehabilitation approaches including muscle strength and range of motion training in upper extremity have been widely used in rehabilitation clinics [2]. Robot-assisted therapy (RAT) as an intervention for upper extremity rehabilitation is an encouraging approach in order to improve upper limb function in patients with neurological impairments [3]. RAT would offer motivational and intensive rehabilitation for a pediatric patient with EDP to interact and train with task-related games in the robotic devices.Publication Open Access The Relationship Between Fat Tissue & Lean Body Mass and Sit to Stand Task in Obese Individuals(MARMARA UNIV, INST HEALTH SCIENCES, 2021-05-29) AVCI, ENDER ERSİN; Timurtas, Eren; Avci, Ender Ersin; Demirbuken, Ilksan; Akgun, Irem; Sertbas, Yasar; Polat, Mine GuldenObjective: Obesity, currently one of the important health issues, can be defined through Fat Tissue Mass (FTM) and Lean Body Mass (LBM). The study aimed to investigate to what extent do FTM and LBM are associated with movement strategies of Sit-to-Stand (STS) task in individuals with obesity. Methods: Forty-nine obese individuals (52,83 +/- 7,39) with no diagnosis of any health condition included in the study. The Balance Master System was used to evaluate the STS movement. STS task was analyzed by means of Weight Transfer Time (WTT) (second), Rising Index (RI) (force exerted by legs-%Body Weight), the Center of Gravity (COG) sway velocity (degrees per second). The FTM and LBM were regressed against each STS parameter including age as a covariate. Results: The regression models could explain 10-21% of the variabilities in STS parameters: RI (21%), COG sway velocity (11%), WTT (10%). FTM significantly related to RI (beta: -0.287, p=0.040), but not with COG sway velocity (beta: 0.270, p=0.073) and WTT (beta: - 0.038, p=0.802). LBM was significantly associated with RI (beta: 0.435, p=0.003); yet, not with COG sway velocity (beta: -0.100, p=0.066), WTT (beta: -0.092, p=0.549). Conclusion: This study revealed that FTM and LBM can explain the significant percent of the variation in RI during STS task, meaning a decrease in FTM and an increase in LBM provided support to rise during STS task. Moreover, an increase in FTM deteriorated postural stability. Improving LBM and decreasing FTM would be an effective strategy to improve STS in the obese population to increase their agility and could encourage physical activity participation.Publication Open Access The relationship between ankle eversion to inversion strength ratio and postural balance control in healthy individuals(2020-10-01) AVCI, ENDER ERSİN; AKGÜN, İREM; POLAT, MİNE GÜLDEN; TİMURTAŞ, EREN; DEMİRBÜKEN, İLKŞAN; Avcı E. E., Şenocak E., Akgün İ., Timurtaş E., Demirbüken İ., Polat M. G.The distal part of the lower extremity, foot and ankle joint, has an essential role to control postural balance through coordinated movements. The role of co-contraction between ankle dorsiflexor and plantar flexor muscles in maintaining postural balance has been mostly focused on previous researches [1,2]. However, the ankle strategy for postural control primarily occurs through eversion and inversion effort to keep the foot stable on the ground [3]. The current study aimed to investigate the relationship between isometric muscle strength ratio of eversion/ inversion (E/I) and postural balance control which is firstly corrected by ankle joint strategy.