Article
Biotechnology & Applied Microbiology
Yi Hu, Diyang Zou, Qi Sun, Mengda Jiang, Huiwu Li, Tsung-Yuan Tsai, Jingwei Zhang
Summary: This study found strong correlations between postoperative structures, especially hip center positions, and gait range of motion in unilateral hip dysplasia patients after total hip arthroplasty. It suggests that particular caution should be taken in surgical treatment of postoperative prosthesis structures, especially hip center positions, as they have a significant impact on hip gait motion range.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Chemistry, Analytical
Julio A. Costa, Konstantinos Spyrou, Antonio Sancho, Joana F. Reis, Joao Brito
Summary: A study was conducted to assess the reliability of measuring maximal strength and rate of force development during the Nordic hamstring exercise (NHE). The results showed no significant differences in the test-retest measurements of maximal strength and rate of force development after a two-day interval.
Article
Chemistry, Analytical
Charlotte J. Marshall, Doa El-Ansary, Adrian Pranata, Charlotte Ganderton, John O'Donnell, Amir Takla, Phong Tran, Nilmini Wickramasinghe, Oren Tirosh
Summary: The study demonstrates that both tele-assessment approaches using smartphone applications or video analysis have good to excellent concurrent validity and moderate to substantial between-sessions reliability in measuring hip rotation and flexion range of motion, but show less effectiveness in measuring internal hip rotation in the prone position.
Article
Chemistry, Analytical
Lukasz Stolowski, Maciej Niedziela, Bartlomiej Lubiatowski, Przemyslaw Lubiatowski, Tomasz Piontek
Summary: This study compares the validity of a single inertial measurement unit (IMU) with a universal goniometer and inclinometer, and demonstrates that IMU can be successfully used to assess the active hip range of motion in healthy subjects.
Article
Computer Science, Interdisciplinary Applications
Arnab Palit, Richard King, Jim Pierrepont, Mark A. Williams
Summary: This study developed a method to calculate subject-specific representative bony range of motion (B-ROM), which can be used for pre-operative surgical planning to restore a patient's natural range of motion. By simulating joint motion using six rotation sequences and identifying the B-ROM that causes the earliest impingement, more comprehensive surgical planning can be achieved, minimizing post-operative complications.
COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE
(2022)
Article
Orthopedics
Maeruan Kebbach, Christian Schulze, Christian Meyenburg, Daniel Kluess, Mevluet Sungu, Albrecht Hartmann, Klaus-Peter Guenther, Rainer Bader
Summary: This computer-based study investigated the range of motion (ROM) and impingement type for different implant systems in total hip joint replacement (THR). The results showed that hip resurfacing had decreased ROM compared to conventional hip stems and short hip stems, and it also increased the likelihood of bone impingement. These findings indicate the importance of considering the ROM and impingement type when choosing the appropriate implant system for THR.
JOURNAL OF ORTHOPAEDIC RESEARCH
(2023)
Article
Multidisciplinary Sciences
Kosuke Takeuchi, Kazunori Akizuki, Masatoshi Nakamura
Summary: The study aimed to investigate the acute effects of high-intensity jack-knife stretching on hamstring flexibility. Results showed that the stretching significantly increased knee extension ROM and passive torque at end ROM at both intensities. However, muscle-tendon unit stiffness decreased significantly only in the PODmax intensity, suggesting the method is effective in reducing stiffness but may cause discomfort during stretching.
SCIENTIFIC REPORTS
(2021)
Article
Chemistry, Multidisciplinary
Maeruan Kebbach, Christian Schulze, Christian Meyenburg, Daniel Kluess, Mevluet Sungu, Albrecht Hartmann, Klaus-Peter Gunther, Rainer Bader
Summary: The study developed a computational framework based on MRI to predict patient-specific ROM and impingement type in total hip replacements. The verification showed consistency between preoperative planning and postoperative reconstruction of ROM, with minor differences in external rotation ROM. Impingement types were in good agreement between preoperatively planned and postoperatively reconstructed scenarios.
APPLIED SCIENCES-BASEL
(2021)
Article
Multidisciplinary Sciences
Ali AlTaweel, Shibili Nuhmani, Mohammad Ahsan, Turki Abualait, Qassim Muaidi
Summary: This study aims to investigate the differences in muscle strength and flexibility of the hip joint of professional soccer players based on their field position. The results showed no significant differences in isokinetic strength at the hip joint movements, but there was a significant difference in hip extension range of motion among players based on field position. This study can assist coaches and trainers in recognizing player strengths and weaknesses and designing training programs to improve player performance in different positions.
Article
Orthopedics
August Estberger, Anders Palsson, Ioannis Kostogiannis, Eva Ageberg
Summary: The study found that in patients with longstanding hip and groin pain, lower hip range of motion in internal rotation, external rotation, and abduction are associated with a higher alpha angle. A cut-off of 27 degrees in internal rotation has good sensitivity and specificity to identify patients with an alpha angle above or below 60 degrees.
KNEE SURGERY SPORTS TRAUMATOLOGY ARTHROSCOPY
(2021)
Article
Clinical Neurology
Agnieszka Guzik, Mariusz Druzbicki, Lidia Perenc, Andzelina Wolan-Nieroda, Andrea Turolla, Pawel Kiper
Summary: The study aimed to define the minimal clinically important differences (MCID) for hip range of motion in the sagittal plane post-stroke. Results showed that the MCID for the affected side was 5.81° and for the unaffected side was 2.86°.
FRONTIERS IN NEUROLOGY
(2021)
Article
Sport Sciences
Christian Baumgart, Eduard Kurz, Juergen Freiwald, Matthias Wilhelm Hoppe
Summary: The study found that hip angle, muscle contraction mode, and velocity have an impact on isokinetic knee strength. Most parameters were lower in knee flexion and at 90 degrees of hip flexion. Furthermore, angle-specific analyses were found to be more accurate than conventional parameters in assessing knee strength.
SPORTS MEDICINE-OPEN
(2021)
Article
Sport Sciences
Tobias Siebert, Lars Donath, Mischa Borsdorf, Norman Stutzig
Summary: This study investigated the effects of static stretching, dynamic stretching, and myofascial foam rolling on hip flexion range of motion. The results showed significant increases in range of motion after static stretching and dynamic stretching, but not after foam rolling. Therefore, the increased range of motion observed with foam rolling may be due to a change in pain threshold.
JOURNAL OF STRENGTH AND CONDITIONING RESEARCH
(2022)
Article
Multidisciplinary Sciences
Haifang Wang, Hailong Yu, Yonghwan Kim, Tingting Chen
Summary: Hip dysplasia (HD) is a common developmental abnormality of the hip joint, which often leads to discomfort in adulthood. This study compared patients with symptomatic HD to healthy individuals in terms of muscle strength, dynamic balance, and range of motion (ROM). The results showed that on the symptomatic side, patients had decreased ROM, dynamic balance, and muscle strength, while on the asymptomatic side, the function was relatively close to normal.
Article
Orthopedics
Chun-Hao Huang, Burcu Aydemir, Kharma C. Foucher
Summary: This study found that reduced sagittal plane hip range of motion and altered ankle kinetics during gait had an impact on the energy cost of walking in people with hip osteoarthritis. Specifically, greater hip range of motion was associated with larger ankle dorsiflexion moment at push-off, and this moment was associated with lower oxygen consumption during gait.
JOURNAL OF ORTHOPAEDIC RESEARCH
(2023)
Article
Engineering, Biomedical
Sasa Djuric, Ivan Cuk
Summary: This study assessed the concurrent validity and sensitivity of the recently proposed two-point force-velocity (F-V) model. The results showed that the F-V relationships of the proposed model were valid compared to the standard model, but there were differences in different dynamic tasks and levels of physical fitness.
SPORTS BIOMECHANICS
(2022)
Article
Neurosciences
Marko Milic, Danica Janicijevic, Aleksandar Nedeljkovic, Ivan Cuk, Milos Mudric, Amador Garcia-Ramos
Summary: This study aimed to determine the optimal instruction for maximizing fencing attack performance and examined a novel efficiency index (EI) that can differentiate between beginners and experienced fencers. The results showed that providing instructions to react as fast as possible and to be as accurate as possible promoted the highest and lowest EI in beginners, while EI was higher for experienced fencers. The EI could be recommended as a general index of fencing attack efficiency based on our findings.
Article
Physiology
Beat Knechtle, David Valero, Elias Villiger, Jose R. Alvero-Cruz, Pantelis T. Nikolaidis, Ivan Cuk, Thomas Rosemann, Volker Scheer
Summary: This study investigated the influence of environmental conditions on marathon performance in age group marathoners participating in the 'Berlin Marathon' from 1974 to 2019. The study found that marathon race times were significantly correlated with age, daily maximum temperature, hours of sunshine, and precipitation levels. Higher temperatures and lower precipitation levels were associated with faster race times among master marathoners, highlighting the importance of weather conditions in marathon performance.
FRONTIERS IN PHYSIOLOGY
(2021)
Article
Environmental Sciences
Dusko Bjelica, Jovan Gardasevic, Zoran Milosevic, Predrag R. Bozic, Bojan Masanovic
Summary: This study aimed to assess the trajectories of body height, body weight, BMI, and nutrition status among young males in the Municipality of Berane from 1979 to 1987. The results showed visible trends in body height and body weight, while no trend was observed for BMI and nutrition status. The study provides valuable insight into the recent data of the studied period, aiding in tracking the secular trend throughout Montenegro.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2021)
Article
Sport Sciences
Beat Knechtle, Ivan Cuk, Elias Villiger, Pantelis T. Nikolaidis, Katja Weiss, Volker Scheer, Mabliny Thuany
Summary: Successful finishers in the 'Spartathlon' exhibited a reverse J-shaped pacing, with a decrease in running speed from the start to the 7th checkpoint and an increase thereafter. Men had a more significant change in checkpoint speed in the first two checkpoints, while women showed a more substantial change in the last checkpoint. Age and sex did not impact average checkpoint speed, but there were differences among performance groups.
SPORTS MEDICINE-OPEN
(2022)
Article
Physiology
Katja Weiss, David Valero, Elias Villiger, Volker Scheer, Mabliny Thuany, Ivan Cuk, Thomas Rosemann, Beat Knechtle
Summary: This study investigated the association between environmental conditions and pacing of age group marathoners. The results showed that temperature had a negative impact on the pacing of male and female runners aged 20 to 59, while humidity had a negative impact on the pacing of 80-year-old runners.
FRONTIERS IN PHYSIOLOGY
(2022)
Article
Cardiac & Cardiovascular Systems
Beat Knechtle, Pedro Forte, Katja Weiss, Ivan Cuk, Pantelis T. Nikolaidis, Caio Victor Sousa, Marilia Santos Andrade, Mabliny Thuany
Summary: The present case report compares the performance differences of an elite cyclist in achieving two 24-hour cycling world records. The study finds significant differences in distance, speed, and heart rate between the two records, and attributes the performance improvement in the new record to improvements in technical specifications.
FRONTIERS IN CARDIOVASCULAR MEDICINE
(2022)
Article
Multidisciplinary Sciences
Katja Weiss, David Valero, Elias Villiger, Mabliny Thuany, Ivan Cuk, Volker Scheer, Beat Knechtle
Summary: The research examined the association between weather variables and running speed in elite runners participating in the New York City Marathon between 1999 and 2019. The results showed that humidity and sunshine duration were weakly and positively correlated with running speed in the top performance groups. On the other hand, temperature was weakly and negatively correlated with running speed in all runner groups. However, weather factors did not have a significant predictive influence on performance.
SCIENTIFIC REPORTS
(2022)
Article
Psychology, Multidisciplinary
Vojko Vuckovic, Ivan Cuk, Sasa Duric
Summary: The sustainability of fitness centers relies on member recruitment and retention, with recent attention focused on these factors. This study investigated trends in fitness center membership purchase channels from 2016 to 2022 and exercise motivation in the Slovenian population. The findings revealed that traditional advertising methods, like radio and flyers, were least effective, while internet and social media advertising played an increasingly important role. Word of mouth was the most influential method for attracting new members. Different demographic groups showed variations in exercise motivation, highlighting the need for personalized services.
BEHAVIORAL SCIENCES
(2023)
Article
Multidisciplinary Sciences
Beat Knechtle, Ivan Cuk, Elias Villiger, Pedro Forte, Mabliny Thuany, Marilia Santos Andrade, Pantelis T. Nikolaidis, Katja Weiss
Summary: This study investigated the pacing strategies of top male and female athletes in the 2022 IRONMAN World Championship in Hawaii. The results showed that the top performers had faster split times in both cycling and running, with differences in pacing strategies between sexes. Pacing was more consistent in cycling, while running pacing varied more, especially among male athletes in different performance groups.
SCIENTIFIC REPORTS
(2023)
Article
Multidisciplinary Sciences
Sasa Bubanj, Marko Radenkovic, Dusan Stankovic, Emilija Petkovic, Ana Lilic, Ivana Bojic, Nikola Aksovic, Tatiana Dobrescu, Bojan Bjelica, Ivan Cuk, Sanja Mazic, Francesco Maria Petrini, Scepan Sinanovic, Milena Tomovic, Florin Valentin Leuciuc
Summary: This study analyzed the biomechanical parameters of a patient with a unilateral transfemoral amputation using gait analysis. The comparison between the healthy leg and the prosthetic leg was conducted under conditions with and without neural sensory feedback (NSFB). The results showed significant differences in stance, time, and speed of ascending and descending stairs between the two conditions. This suggests that NSFB can be used to control and customize gait parameters in real-time.
Article
Sport Sciences
Beat Knechtle, David Valero, Elias Villiger, Mabliny Thuany, Marilia Santos Andrade, Pantelis T. Nikolaidis, Ivan Cuk, Katja Weiss
Summary: This study investigated the sex differences in the IRONMAN 70.3 race by age group, analyzing data from all official IRONMAN 70.3 races held worldwide between 2004 and 2020. The results showed that males were faster than females in all split disciplines and age groups. The sex difference was lower in swimming compared to cycling and running, and it decreased with age for swimming and cycling but not for running. The lowest sex difference was observed in the 75+ age group for swimming and cycling, and in the 30-34 age group for running. Overall, the study found that the sex difference in performance decreased with age in the IRONMAN 70.3 race distance.
SPORTS MEDICINE-OPEN
(2023)
Article
Sport Sciences
S. Rakic, F. Kukic, E. A. Cherepov, M. Dopsaj, K. B. Schelgacheva, I. Cuk
Summary: This study investigated the association between body composition variables and leisure time physical activity (F-LTPA and V-LTPA) in employed females, and determined which indicator of LTPA is more closely related to body composition. The findings showed that higher levels of F-LTPA and V-LTPA were associated with lower body fatness measures. Additionally, it was found that engaging in four to five LTPA sessions or 150-300 minutes of physical activity per week may be necessary to achieve an acceptable level of body fatness.
HUMAN SPORT MEDICINE
(2022)
Article
Pharmacology & Pharmacy
K. Weiss, C. Sousa, M. Thuany, I Cuk, P. T. Nikolaidis, B. Knechtle
Summary: This study aimed to investigate the pacing during cycling and running splits in three different multi-stage ultra-triathlon race formats. The results showed a significant effect of race distance on total performance, with longer distances resulting in faster performances. Additionally, the pacing during cycling had an influence on the subsequent running performance, with longer races showing a greater impact.
EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES
(2022)
Article
Pharmacology & Pharmacy
K. Weiss, D. Valero, E. Villiger, M. Thuany, V Scheer, I Cuk, B. Knechtle
Summary: This study investigated the influence of environmental conditions on the pacing and running speed of elite marathoners competing in the Berlin Marathon. The results showed that faster runners experienced lower temperatures and higher humidity levels, while slower runners experienced higher temperatures and lower humidity levels, which had a stronger negative impact on running speeds. Additionally, barometric pressure was positively correlated with running speed in elite runners.
EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES
(2022)
