Article
Physiology
Marcel Lemire, Mathieu Falbriard, Kamiar Aminian, Gregoire P. Millet, Frederic Meyer
Summary: This study aimed to investigate the correlation between energy cost of running at different slopes and speeds, as well as the influence of lower limb strength on energy cost. The results showed that energy cost was correlated with muscle strength and different slopes, with the optimal downhill grade varying across speeds.
FRONTIERS IN PHYSIOLOGY
(2021)
Article
Hospitality, Leisure, Sport & Tourism
Clarissa S. Whiting, Wouter Hoogkamer, Rodger Kram
Summary: Compared to conventional racing shoes, Nike Vaporfly 4% running shoes can reduce the metabolic cost in level, uphill, and downhill running. However, the savings provided during uphill running are relatively smaller.
JOURNAL OF SPORT AND HEALTH SCIENCE
(2022)
Article
Neurosciences
Javad Sarvestan, Peyman Aghaie Ataabadi, Fateme Yazdanbakhsh, Shahram Abbasi, Ali Abbasi, Zdenek Svoboda
Summary: Uphill walking results in adjustments in ankle, knee, and hip joint angles to provide a stable base of support, but may also lead to reduced ankle movement variability and potential injuries during long-term uphill walking.
Article
Rehabilitation
Itai Har-Nir, Lior Frid, Alon Kalron
Summary: This study aimed to investigate the energy expenditure of walking on different slopes in people with multiple sclerosis (pwMS). The results showed that the oxygen consumption rate and cost were higher during uphill walking and lower during downhill walking compared to level walking. PwMS perceived uphill walking as more demanding, although their actual energy expenditure was slightly lower than healthy controls.
EUROPEAN JOURNAL OF PHYSICAL AND REHABILITATION MEDICINE
(2023)
Article
Sport Sciences
Marcel Lemire, Thomas J. Hureau, Fabrice Favret, Bernard Geny, Blah Y. L. Kouassi, Mourad Boukhari, Evelyne Lonsdorfer, Romain Remetter, Stephane P. Dufour
Summary: This study investigated the cardiorespiratory responses of highly trained runners in outdoor downhill and uphill time-trials and explored the determinants of downhill and uphill performance. Results showed that both downhill and uphill performances are well explained by three independent predictors, with one specific predictor for each type of performance.
JOURNAL OF SCIENCE AND MEDICINE IN SPORT
(2021)
Article
Engineering, Biomedical
Derek R. Dewig, Christopher D. Johnston, Brian Pietrosimone, J. Troy Blackburn
Summary: The study found that individuals more than 1 year post-anterior cruciate ligament reconstruction exhibit aberrant gait biomechanics on graded surfaces that are not apparent during level walking. Assessment of gait on level surfaces may mask existing deficiencies, highlighting the importance of emphasizing ambulation on graded surfaces during rehabilitation.
CLINICAL BIOMECHANICS
(2021)
Article
Computer Science, Artificial Intelligence
Kenan Ahiska, Mustafa Kemal Ozgoren, Mehmet Kemal Leblebicioglu
Summary: In this paper, an energy optimal controller is designed and detailed sensitivity analyses are performed. The superiority of the energy optimal controller is verified through tests in different road conditions, and a skidding compensation logic is proposed. The study shows that the energy optimal controller is not sensitive to changes in mass and its distribution, and performs significantly well when charging capability is limited.
IEEE TRANSACTIONS ON INTELLIGENT VEHICLES
(2021)
Article
Multidisciplinary Sciences
Hongfei Ji, Anthony D. Fouad, Zihao Li, Andrew Ruba, Christopher Fang-Yen
Summary: This study describes the proprioception-mediated homeostatic control of undulatory movement in C. elegans. The worm responds to decreases in midbody bending amplitude by increasing anterior amplitude and vice versa. The neural circuit underlying this compensatory postural response involves dopamine signaling from PDE neurons to AVK interneurons, which release FLP-1 to regulate SMB head motor neurons for anterior bending. This homeostatic control optimizes locomotor efficiency.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Neurosciences
Rina M. Magnani, Jaap H. van Dieen, Sjoerd M. Bruijn
Summary: Vestibular information modulates muscle activity during gait to contribute to stability. Stochastic electrical vestibular stimulation decreases gait stability and precision of foot placement, but these effects are not modulated by step width.
EXPERIMENTAL BRAIN RESEARCH
(2023)
Article
Neurosciences
Changxin Li, Shota Inoue, Junpei Hatakeyama, Hanlin Jiang, Daisuke Takamura, Osamu Shirado, Hideki Moriyama
Summary: Through studying a model of osteoarthritis, we found that flat and uphill walking can slow down the progression of inflammation and cartilage degeneration.
JOURNAL OF PHYSIOLOGY-LONDON
(2023)
Article
Sport Sciences
Athanassios Bissas, Giorgos P. Paradisis, Gareth Nicholson, Josh Walker, Brian Hanley, Konstantinos Havenetidis, Carlton B. Cooke
Summary: This study examined the development and decline of performance adaptations resulting from an uphill-downhill training program. The results showed that uphill-downhill training significantly improved maximal running speed, stride rate, and knee extensors' maximum isometric force. The study also found that the training effects were maintained even after a detraining period. Therefore, this training method is highly beneficial for athletes requiring fast adaptations.
JOURNAL OF STRENGTH AND CONDITIONING RESEARCH
(2022)
Article
Computer Science, Hardware & Architecture
Muhammad Fawad Khan, Fahad Sameer Alshammari, Ghaylen Laouini, Majdi Khalid
Summary: Researchers have developed a sensitivity-based mathematical model for predicting traffic congestion on uphill and downhill highways. The model utilizes an ordinary differential equation and machine learning approach, providing accurate results. The reliability and stability of the model are evaluated using various indicators and statistical terms, and a graphical analysis is also presented for better visualization of the traffic flow and congestion.
COMPUTERS & ELECTRICAL ENGINEERING
(2023)
Article
Biology
Yehonatan Ben-Shaul, Zohar Hagbi, Alex Dorfman, Pazit Zadicario, David Eilam
Summary: In this study, we tested whether rodents prefer to descend or ascend when given the choice. We found that all tested rodent species displayed a preference to descend, possibly due to attraction to the ground and the role of gravitaxis in spatial behavior.
Review
Neurosciences
Alessandro Santuz, Turgay Akay
Summary: Muscle spindles, together with Golgi tendon organs, are sensory structures that provide the central nervous system with information about body position and movement. Despite being discovered over 150 years ago, their role during movement is not fully understood. Recent advances in molecular biology have helped uncover the molecular mechanisms of signal transmission in muscle spindles. Research suggests that muscle spindles play a crucial role in maintaining locomotor robustness, but further studies are needed to fully understand their contribution to functional locomotion in challenging conditions.
JOURNAL OF PHYSIOLOGY-LONDON
(2023)
Article
Multidisciplinary Sciences
Jazmin Cruz, James Yang
Summary: This study optimized parameters to accurately estimate whole body metabolic energy expenditure during walking, compared the results with other models, and concluded that the optimized parameters performed well across different walking conditions.