Results 1 to 10 of about 20,513 (173)

Information from dynamic length changes improves reliability of static ultrasound fascicle length measurements [PDF]

PeerJ, 2017
Purpose Various strategies for improving reliability of fascicle identification on ultrasound images are used in practice, yet these strategies are untested for effectiveness.
Jeroen Aeles, Glen A. Lichtwark, Sietske Lenchant, Liesbeth Vanlommel, Tijs Delabastita, Benedicte Vanwanseele   +5 more
doaj   +8 more sources

Pressure based MRI-compatible muscle fascicle length and joint angle estimation [PDF]

Journal of NeuroEngineering and Rehabilitation, 2020
Background Functional magnetic resonance imaging (fMRI) provides critical information about the neurophysiology of the central nervous systems (CNS), posing clinical significance for the understanding of neuropathologies and advancement of rehabilitation.
Hyungeun Song, Erica Israel, Shriya Srinivasan, Hugh Herr   +3 more
doaj   +5 more sources

The effects of soleus fascicle length on muscle fatigability [PDF]

PeerJ
Background Age-related deficits in Achilles tendon stiffness have been linked to shorter calf muscle operating lengths. These shorter lengths have the potential to precipitate higher requisite excitations and thereby an earlier onset of local ...
Anh D. Nguyen, Aubrey Gray, Gregory Sawicki, Jason R. Franz   +3 more
doaj   +4 more sources

Biceps femoris long head sarcomere and fascicle length adaptations after 3 weeks of eccentric exercise training [PDF]

Journal of Sport and Health Science, 2022
Background: Eccentric exercise increases muscle fascicle lengths; however, the mechanisms behind this adaptation are still unknown. This study aimed to determine whether biceps femoris long head (BFlh) fascicle length increases in response to 3 weeks of ...
Patricio A. Pincheira, Melissa A. Boswell, Martino V. Franchi, Scott L. Delp, Glen A. Lichtwark   +4 more
doaj   +2 more sources

Ultrasonographic measurements of fascicle length overestimate adaptations in serial sarcomere number [PDF]

Experimental Physiology, 2023
AbstractUltrasound-derived measurements of muscle fascicle length (FL) are often used to infer increases (chronic stretch or training) or decreases (muscle disuse or aging) in serial sarcomere number (SSN). Whether FL adaptations measured via ultrasound can truly approximate SSN adaptations has not been investigated.
Avery Hinks, Martino V. Franchi, Geoffrey A. Power   +2 more
openaire   +4 more sources

A Preseason Training Program With the Nordic Hamstring Exercise Increases Eccentric Knee Flexor Strength and Fascicle Length in Professional Female Soccer Players [PDF]

International Journal of Sports Physical Therapy, 2021
# Background Training programs that include the Nordic hamstring exercise (NHE) have been shown to increase eccentric knee flexor strength and biceps femoris fascicle length in male athletes. However, the effect of NHE on female athletes remains unknown.
Karoline Baptista Vianna, Lívia Gonçalves Rodrigues, Nathalia Trevisol Oliveira, João Breno Ribeiro-Alvares, Bruno Manfredini Baroni   +4 more
doaj   +2 more sources

Improved Fascicle Length Estimates From Ultrasound Using a U-net-LSTM Framework [PDF]

2023 International Conference on Rehabilitation Robotics (ICORR), 2023
Brightness-mode (B-mode) ultrasound has been used to measure in vivo muscle dynamics for assistive devices. Estimation of fascicle length from B-mode images has now transitioned from time-consuming manual processes to automatic methods, but these methods fail to reach pixel-wise accuracy across extended locomotion.
Gionfrida, Letizia, Nuckols, R.W., Walsh, Conor, Howe, Robert D.   +3 more
europepmc   +6 more sources

TTN genotype is associated with fascicle length and marathon running performance. [PDF]

Scandinavian Journal of Medicine & Science in Sports, 2017
Titin provides a molecular blueprint for muscle sarcomere assembly and sarcomere length can vary according to titin isoform expression. If variations in sarcomere length influence muscle fascicle length, this may provide an advantage for running ...
Abe, Bodine, Brughelli, Chauveau, Conley, Ekblom, Erskine, Fry, Fukuda, Fukunaga, Gibbs, Greaser, Greaser, Greaser, Herzog, Iwasaki, Kawakami, Kumagai, Montgomery, Morse, Novacheck, Pellegrino, Pontzer, Rankinen, Reeves, Reeves, Roberts, Sacks, Thomaes, Timmons, Tsuji, Vikhlyantsev, Wang, Wickiewicz   +33 more
core   +9 more sources

Myofascial Loads Can Occur without Fascicle Length Changes [PDF]

Integrative and Comparative Biology, 2018
Many studies have shown that connective tissue linkages can transmit force between synergistic muscles and that such force transmission depends on the position of these muscles relative to each other and on properties of their intermuscular connective tissues.
Tijs, Chris, Bernabei, Michel, van Dieën, Jaap H., Maas, Huub   +3 more
openaire   +4 more sources

Weak Association between Vastus Lateralis Muscle Fiber Composition and Fascicle Length in Young Untrained Females [PDF]

Sports, 2021
The aim of the study was to investigate the relationships between vastus lateralis muscle fiber length and fiber type composition in individuals with minimal exposure to systematic resistance/power training.
Thomas Mpampoulis, Spyridon Methenitis, Constantinos Papadopoulos, Giorgos Papadimas, Polyxeni Spiliopoulou, Angeliki-Nikoletta Stasinaki, Gregory C. Bogdanis, Giorgos Karampatsos, Gerasimos Terzis   +8 more
doaj   +2 more sources