Laura Piejko

Laura Piejko

orcid

Research Focus & Metrics

Academic Career Length

8Years (2019-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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14 February 2022 in Sensors
Verified
Journal Article
Open access
PDF file
JCJoanna Czajkowska
Joanna Czajkowska
Jan JuszczykJan Juszczyk
Jan Juszczyk
LPLaura Piejko
Laura Piejko
MGMałgorzata Glenc-Ambroży
Małgorzata Glenc-Ambroży
This study aims at high-frequency ultrasound image quality assessment for computer-aided diagnosis of skin. In recent decades, high-frequency ultrasound imaging opened up new opportunities in dermatology, utilizing the most recent deep learning-based algorithms for automated image analysis. An individual dermatological examination contains either a single image, a couple of pictures, or an image series acquired during the probe movement. The estimated skin parameters might depend on the probe position, orientation, or acquisition setup. Consequently, the more images analyzed, the more precise the obtained measurements. Therefore, for the automated measurements, the best choice is to acquire the image series and then analyze its parameters statistically. However, besides the correctly received images, the resulting series contains plenty of non-informative data: Images with different artifacts, noise, or the images acquired for the time stamp when the ultrasound probe has no contact with the patient skin. All of them influence further analysis, leading to misclassification or incorrect image segmentation. Therefore, an automated image selection step is crucial. To meet this need, we collected and shared 17,425 high-frequency images of the facial skin from 516 measurements of 44 patients. Two experts annotated each image as correct or not. The proposed framework utilizes a deep convolutional neural network followed by a fuzzy reasoning system to assess the acquired data’s quality automatically. Different approaches to binary and multi-class image analysis, based on the VGG-16 model, were developed and compared. The best classification results reach 91.7% accuracy for the first, and 82.3% for the second analysis, respectively.

Agnieszka Nawrat-SzołtysikAgnieszka Nawrat-Szołtysik
Agnieszka Nawrat-Szołtysik
MSMarta Sieradzka
Marta Sieradzka
MNMarta Maria Nowacka-Chmielewska
Marta Maria Nowacka-Chmielewska
LPLaura Piejko
Laura Piejko
JDJulia Duda
Julia Duda
Anna PolakAnna Polak
Anna Polak
The aim of the study was to determine whether Whole Body Vibration Training (WBVT) affects intrinsic risk factors for falls in women aged 60+ at fall risk. Design: Randomized controlled clinical trial. Blinding was applied to the persons in charge of evaluating the intervention’s clinical results and statistical analysis. Methods: Forty-two women over 60 years old were randomly assigned to an experimental group (EG—12-week WBVT; n = 22) and a control group (CG—no additional physical activities; n = 20). Fear of falling was measured by the FES-I questionnaire, gait and dynamic balance using the Time-Up and Go test (TUG), aerobic endurance with the 6-Minute Walk Test (6MWT), and the functional strength of the lower body muscles with the 30-s Chair Stand Test (30SCST) at baseline and post-intervention. Additionally assayed were participants’ blood concentrations of interleukin-6 (IL-6). Results: The 12-week WBVT improves gait and balance (TUG, p = 0.009), exercise tolerance (6MWT, p = 0.001), and functional strength (30SCST; p = 0.027) but does not reduce the intensity of fear of falling (FES-I, p = 0.655) and the IL-6 serum concentration (p = 0.377). Conclusions: WBVT affects selected fall risk factors in women aged 60+ at fall risk.

ABAleksandra Bula
Aleksandra Bula
KTKarolina Tatar
Karolina Tatar
RWRegina Wysocka
Regina Wysocka
KCKasper Chyrek
Kasper Chyrek
LPLaura Piejko
Laura Piejko
Anna PolakAnna Polak
Anna Polak
Background: Therapies against breast cancer (BC) frequently involve complications that impair patients’ daily function and quality of life, the most common of which are motor coordination and balance disorders, increasing the risk of falls and injuries. In such cases, physical activity is recommended. Designed following the PRISMA guidelines, this study presents a systematic review of randomised and pilot clinical trials investigating the effect of physical exercises on postural balance in women treated for BC. Methods: Scientific databases (PubMed, EBSCO) and the online resources of grey publications were searched for trial reports published between January 2002 and February 2022. The inclusion criteria necessitated full-text, English-language reports from randomised clinical trials (RCTs) or pilot clinical trials (pilot CTs), whose authors used physical exercises to treat women with BC and the experimental and control groups consisted of at least 10 women. The methodological quality of the RCTs and pilot CTs were measured using the Physiotherapy Evidence Database (PEDro) scale and the Methodological Index for Non-Randomized Studies (MINORS), respectively. Data were extracted on the effect of exercise on the women’s static and dynamic balance. Results: Seven reports, five RCTs and two pilot CTs involving a total of 575 women (aged 18–83 years) were included in the systematic review. Their training protocols utilised a variety of aerobic, strength, endurance, sensorimotor, Pilates exercises, and fitness exercises with elements of soccer. The experimental groups usually worked out in fitness or rehabilitation centres under the supervision of physiotherapists or trainers. Training sessions of 30–150 min were held 2 or 3 times a week for 1.5–24 months. Most trials reported that static and dynamic balance in the experimental groups improved significantly more compared with the control groups. Conclusions: Physical exercises are able to improve static and dynamic postural balance in women treated for BC. However, as all evidence in support of this conclusion comes from only two pilot CT and five RCTs whose methodologies varied widely, more high quality research is needed to validate their findings and determine which exercise protocols are the most effective in improving postural control in women with BC.

Agnieszka Nawrat-SzołtysikAgnieszka Nawrat-Szołtysik
Agnieszka Nawrat-Szołtysik
ZMZuzanna Miodońska
Zuzanna Miodońska
LPLaura Piejko
Laura Piejko
BSBogna Szołtys
Bogna Szołtys
MBMonika Błaszczyszyn
Monika Błaszczyszyn
Anna PolakAnna Polak
Anna Polak
Background: The quality of life in osteoporosis is studied for men rather than for women. Aim of the study was to determine how bone mass density (BMD) relates to life quality components and the severity of pain felt by men affected by osteoporosis. Methods: Presented research is a cross-sectional study. The cohort of 62 men aged 65 to 85 years was divided into a group with osteoporosis (N = 27) and a group without osteoporosis (N = 35). The participants’ quality of life was measured with the Qualeffo41 Questionnaire, BMD was quantified by densitometry, and pain intensity was assessed on the Visual Analogue Scale. Results: We found that lower BMD was strongly correlated to participants’ quality of life (r = −0.72), especially the quality of leisure and social activities (r = −0.66), general health perception (r = −0.59), and mobility (r = −0.57). Pain significantly affected general health perception in older men with osteoporosis. General health assessment and pain were highly correlated with each other (r = 0.888). Conclusion: BMD and the overall quality of life of the study participants were related to each other. The strongest relationship occurred between reduced BMD and leisure and social activities component. The pain significantly affected participants’ general health perception. The results may be employed to create new prophylactic strategies to improve life quality in men with osteoporosis.

30 August 2025 in Journal of Clinical Medicine
Verified
Journal Article
Open access
PDF file
KNKamila Niewolak
Kamila Niewolak
JAJoanna Antkiewicz
Joanna Antkiewicz
LPLaura Piejko
Laura Piejko
GSGrzegorz Sobota
Grzegorz Sobota
AMAdam Maszczyk
Adam Maszczyk
Anna PolakAnna Polak
Anna Polak
Background: After ischemic heart disease, stroke is globally the second leading cause of death and the second most common cause of disability. The rehabilitation of patients with chronic stroke increasingly uses advanced technologies, such as treadmill perturbation-based training (TPBT). While the results of studies with TPBT are promising, they are inconclusive due to the limited number of works and inconsistent research methodologies. Therefore, more randomized clinical trials (RCTs) are needed to evaluate TPBT’s efficacy and applicability in post-stroke rehabilitation. This prospective RCT was designed to assess whether and to what extent TPBT can improve postural balance and gait quality and reduce fear of falling in patients with chronic stroke. Methods: Fifty individuals who were at least six months post-stroke were enrolled in the trial and randomly assigned to the experimental group (EG; n = 25) to receive the TPBT or the control group (CG; n = 25) to receive overground gait and balance training. Both groups exercised six times per day for three weeks. Results: The Berg Balance Scale showed post-intervention that the postural balance improved significantly in both groups (EG, p = 0.001 and CG, p = 0.009), but the change did not statistically significantly differentiate the EG from the CG (p = 0.256). The significant improvements in walking speed over the distance of 10 m (p = 0.015) and fear of falling (p = 0.002) in the CG were not significantly different from those in the EG (p = 0.543). Conclusions: TPBT applied to patients with chronic stroke improves their postural control comparably to conventional gait and balance training but does not enhance their gait quality.

1 June 2022 in Issues of Rehabilitation, Orthopaedics, Neurophysiology and Sport Promotion - IRONS
Verified
Journal Article
Closed access
KNKamila Niewolak
Kamila Niewolak
JPJolanta Piaskowska
Jolanta Piaskowska
PPPaula Pecyna
Paula Pecyna
LPLaura Piejko
Laura Piejko
WMWojciech Marszałek
Wojciech Marszałek
APAnna Polak
Anna Polak
Introduction One of the basic goals of post-stroke rehabilitation is the improvement of postural control and gait quality. Modern post-stroke rehabilitation implements treadmill training with controlled body balance perturbations (PBT). Aim This study aimed to assess the influence of the PBT treadmill training on activities of daily living (ADL), gait quality and postural control in people with chronic stroke. Methods Seventeen patients with stroke hospitalized in a rehabilitation centre were randomly allocated to 3-week PBT training. Functional independence was assessed using Fugl-Meyer Motor Assessment (FMA). ADL were assessed using Barthel Scale. Static and dynamic postural control was assessed using Berg Balance Scale (BBS), Timed Up And Go Test (TUG) and Functional Reach Test (FRT). Static postural control was assessed using stabilometric platform tests (Alfa and Gamma, Ac International East, Poland). The 10-meter walk test was used to evaluate gait. Spatial, temporal gait parameters were also assessed using the MyoMotion (Noraxon, USA). Results A significant improvement was found in the patients’ motor functions (FMA; p = 0.01), independence in daily activities (Barthel Scale; p = 0.01), static and dynamic balance (BBS; p = 0.01). There was no statistically significant improvement in the dynamic balance (TUG; p = 0.15; and FRT; p = 0.19). Conclusions Inclusion of perturbation training during rehabilitation of patients with chronic stroke improved ADL, gait quality and postural control.