Kazuki Okura

ORCID: 0000-0001-8224-1294
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About
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Research Areas
  • Chronic Obstructive Pulmonary Disease (COPD) Research
  • Nutrition and Health in Aging
  • Respiratory Support and Mechanisms
  • Lower Extremity Biomechanics and Pathologies
  • Frailty in Older Adults
  • Esophageal Cancer Research and Treatment
  • Cardiovascular and exercise physiology
  • Body Composition Measurement Techniques
  • Lung Cancer Diagnosis and Treatment
  • Obstructive Sleep Apnea Research
  • Knee injuries and reconstruction techniques
  • Intensive Care Unit Cognitive Disorders
  • Osteoarthritis Treatment and Mechanisms
  • Infrared Thermography in Medicine
  • Foot and Ankle Surgery
  • Thermoregulation and physiological responses
  • Muscle activation and electromyography studies
  • Balance, Gait, and Falls Prevention
  • Non-Invasive Vital Sign Monitoring
  • Hip and Femur Fractures
  • Acupuncture Treatment Research Studies
  • Cerebral Palsy and Movement Disorders
  • Physical Activity and Health
  • Ultrasound in Clinical Applications
  • Dysphagia Assessment and Management

Akita University Hospital
2015-2025

Akita University
2015-2023

Akebono Clinic
2021

Inje University Ilsan Paik Hospital
2018

Fukushima Medical University
2018

Background: Orthostatic hypotension can occur during acute spinal cord injury (SCI) and subsequently persist. We investigated whether a gait rehabilitation robot combined with functional electrical stimulation (FES) stabilizes hemodynamics orthostatic stress in SCI. Methods: Six intermediate-phase SCI patients (five males one female; mean age: 49.5 years; four quadriplegia two paraplegia) participated. The participants underwent robotic training (RT), FES, tilt table (TT). Hemodynamics were...

10.3390/s25030984 article EN cc-by Sensors 2025-02-06

Little is known regarding the relationship between balance impairments and physical activity in COPD. There has been no study investigating objectively measured activity. Here we investigated association by an monitor elderly COPD patients.Twenty-two outpatients with (mean age, 72±7 years; forced expiratory volume 1 second, 53%±21% predicted) 13 age-matched healthy control subjects 72±6 years) participated study. We assessed all 35 subjects' (one-leg standing test [OLST] times, Short...

10.2147/copd.s107936 article EN cc-by-nc International Journal of COPD 2016-07-01

Objective: To estimate the minimal clinically important difference (MCID) of quadriceps and inspiratory muscle strength after a home-based pulmonary rehabilitation program (PRP) in chronic obstructive disease (COPD). Method: Eighty-five COPD patients were included. Quadriceps maximal voluntary contraction (QMVC) was measured. We measured mouth pressure (PImax), 6-minute walk distance (6MWD), respiratory questionnaire (CRQ) modified Medical Research Council dyspnoea score (mMRC). All...

10.1298/ptr.e10049 article EN Physical Therapy Research 2020-10-11

Diaphragm function might be useful to predict nocturnal oxygen desaturation in COPD. Ultrasonography has been widely used for the assessment of diaphragm. We aimed investigate relationship between contractile capability diaphragm assessed by ultrasonography and percutaneous arterial saturation (NSpO2 ) COPD.Twenty-eight male patients with COPD (age, 73 ± 7 years; forced expiratory volume 1 s (FEV1 ), 54.2 17.0% predicted) were included. The thickness (Tdi) was ultrasonography. calculated...

10.1111/resp.12897 article EN Respirology 2016-09-09

Abstract Background Ultrasound imaging has been widely used for of the diaphragm thickness (Tdi) and thickening. Few studies assessed Tdi using ultrasonography in patients with chronic obstructive pulmonary disease (COPD). We measured thickening COPD compared healthy younger older adults to reveal influence ageing and/or COPD. Methods Thirty‐eight male (age 72 ± 8 years), 15 22 1 years) 5 volunteers were recruited. at total lung capacity (Tdi TLC ), functional residual FRC ) volume RV B‐mode...

10.1111/crj.13161 article EN The Clinical Respiratory Journal 2020-02-11

We examined whether preoperative inspiratory muscle weakness (IMW) is a risk factor for postoperative pulmonary complications (PPCs) in patients with esophageal cancer who underwent subtotal esophagectomy.This single-center retrospective cohort study enrolled scheduled esophagectomy between June 2020 and May 2022. Maximal pressure (MIP) was measured as strength using respiratory dynamometer, we defined IMW MIP < 80% of the predicted value. Our primary outcome comprised overall PPCs....

10.1002/jso.27436 article EN Journal of Surgical Oncology 2023-09-06

Objectives: Wearable devices such as fitness trackers have become popular in the healthcare field. Tracking heart rate and respiratory rate, addition to physical activity, may provide an accurate picture of daily health. We believe that a combination two types can simultaneously measure record rate. However, measurement accuracies these are not clear. This study aimed determine wearable for measurements.

10.2490/prm.20220016 article EN Progress in Rehabilitation Medicine 2022-01-01

This retrospective study aimed to investigate the validity of a 30-sec chair stand test (CS-30) as simple assess exercise tolerance and clinical outcomes in 53 Japanese patients with esophageal cancer. There was strong correlation between results CS-30 6-min walk (6MWT), gold standard for assessing (r=0.759). Furthermore, fewer whose score greater than 16 (the cutoff value defined based on 6MWT) experienced pneumonia their postoperative course. These suggest that could be assessed using...

10.18926/amo/65149 article EN PubMed 2023-04-01

[Purpose] We aimed to develop a noninvasive specific ultrasonographic assessment of the talonavicular joint during loading facilitate analysis treatment flatfoot. [Participants and Methods] Sixty healthy participants underwent ultrasound imaging while sitting standing. The angle was defined as intersection line connecting navicular talar heads head sustentaculum tali. Talonavicular coverage assessed using X-ray images 15 participants. [Results] Ultrasonographic showed lateral shift relative...

10.1589/jpts.36.208 article EN Journal of Physical Therapy Science 2024-03-31

The skeletal muscle has a significant role on physical functions, and the assessment of is important in critically ill patients. Computed tomography (CT), ultrasound examination, bioelectrical impedance analysis (BIA) device, biomarkers can all be used to assess mass. CT useful for accurately measuring mass, measurement conducted at third lumbar vertebra level as gold standard. However, using done retrospectively because involves radiation exposure requires patients transported examination...

10.4993/acrt.30.93 article EN Annals of Cancer Research and Therapy 2022-07-21

Abstract Introduction Skeletal muscle dysfunction is one of the major extrapulmonary complications chronic obstructive pulmonary disease (COPD). Some studies have reported a relationship between physical activity (PA) level and skeletal quality assessed by echo‐intensity (EI) in healthy individuals but not patients with COPD. Objectives The aim this study to investigate relationships PA both EI mass Methods We employed cross‐sectional design. Forty male outpatients stable COPD were enrolled....

10.1111/crj.13528 article EN The Clinical Respiratory Journal 2022-07-22

[Purpose] This study aimed to clarify the optimal conditions of warm-water bathing required improve peripheral circulation. [Participants and Methods] Ten healthy males experienced three depths (half-body, low-leg, foot) on different days. Peripheral circulation (earlobe blood flow), tympanic temperature, pulse rate, pressure were measured during each session compared among conditions. [Results] In half-body bathing, relative flow participants increased steeply a level 2.7-fold higher than...

10.1589/jpts.34.652 article EN Journal of Physical Therapy Science 2022-01-01

Background and purpose: This study aimed to evaluate the non-uniformity of cross-sectional areas in atrophic muscles using central aponeurosis (CA) as a marker for region rectus femoris (RF). Methods: We enrolled 51 consecutively admitted patients (102 limbs) with aortic valve stenosis who were scheduled elective surgical or catheter-based replacement expected have low physical activity-induced muscle atrophy. obtained short-axis images mid-thigh an ultrasonic diagnostic imaging system (with...

10.7759/cureus.49097 article EN Cureus 2023-11-20

[Purpose] A new wireless laser Doppler blood flowmeter has facilitated easier, more stable measurement of skin perfusion during exercise. However, earlobe flow the cardiopulmonary exercise test remains unascertained. This study aimed to clarify characteristics incremental load in healthy individuals. [Participants and Methods] Among 25 males (age 23.6 ± 2.5 years), cycle ergometer-based symptom-limited test, after 4 minutes rest, was conducted with a 4-minute 20W warm-up continuous...

10.1589/jpts.36.208 article EN cc-by-nc-nd Journal of Physical Therapy Science 2024-03-31

Preoperative adjuvant therapy for esophageal cancer increases sarcopenia and decreases exercise tolerance, which are risk factors postoperative pneumonia. rehabilitation patients undergoing esophagectomy effectively reduces the incidence of Therefore, should be optimized by preoperative rehabilitation. Our patient had several pneumonia, including low presarcopenia, respiratory muscle strength. However, because patient's advanced age, multiple comorbidities, poor nutritional status, we...

10.7759/cureus.64633 article EN Cureus 2024-07-16

Abstract Introduction Frailty is significantly correlated with a higher incidence of medical complications during hospitalization after esophagectomy. As frailty thought to be reversible condition, improving the reserve capacity through preoperative physical therapy expected reduce risk postoperative pulmonary (PPCs). Herein, we report our experience in patient esophageal cancer who was considered have inadequate fitness for surgery owing poor performance. Case Presentation A 72‐year‐old man...

10.1002/pri.2138 article EN cc-by-nc-nd Physiotherapy Research International 2024-09-26

<title>Abstract</title> Objective: This study aimed to investigate the association between preoperative diaphragm thickening assessed using ultrasound imaging and postoperative pulmonary complications (PPCs) in patients undergoing thoracoscopic esophagectomy for esophageal cancer. Methods: single-center, prospective, cohort enrolled with cancer who were scheduled undergo June 2021 May 2024. The fraction (DTF) was measured preoperatively at 1 2 weeks postoperatively. Our primary outcome...

10.21203/rs.3.rs-5076364/v2 preprint EN cc-by Research Square (Research Square) 2024-10-08

<title>Abstract</title> Objective: This study aimed to investigate the association between preoperative diaphragm thickening assessed using ultrasound imaging and postoperative pulmonary complications (PPCs) in patients undergoing thoracoscopic esophagectomy for esophageal cancer. Methods: single-center, prospective, cohort enrolled with cancer who were scheduled undergo June 2021 May 2024. The fraction (DTF) was measured preoperatively at 1 2 weeks postoperatively. Our primary outcome...

10.21203/rs.3.rs-5076364/v1 preprint EN Research Square (Research Square) 2024-09-16

<title>Abstract</title> <bold>Objective:</bold> This study aimed to investigate the association between preoperative diaphragm thickening assessed using ultrasound imaging and postoperative pulmonary complications (PPCs) in patients undergoing thoracoscopic esophagectomy for esophageal cancer. <bold>Methods:</bold> single-center, prospective, cohort enrolled with cancer who were scheduled undergo June 2021 May 2024. The fraction (DTF) was measured at preoperatively 1 week 2 weeks...

10.21203/rs.3.rs-5076364/v3 preprint EN cc-by Research Square (Research Square) 2024-10-23
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