Results 71 to 80 of about 8,390,922 (295)

Familiarisation and reliability of sprint test indices during laboratory and field assessment [PDF]

, 2009
The aim of the study was to assess the reliability of sprint performance in both field and laboratory conditions. Twenty-one male (mean ± s: 19 ± 1 years, 1.79 ± 0.07 m, 77.6 ± 7.1 kg) and seventeen female team sport players (mean ± s: 21 ± 4 years, 1.68
Coleman, Damian A, Galbraith, Andy, Wiles, Jonathan, Hopker, James G.   +3 more
core  

Ligand‐dependent transcriptional heterogeneity in cell cycle gene expression delays G1/S entry

FEBS Letters, EarlyView.
EGF and HRG induce distinct G1/S progression programs in ErbB2‐amplified BT474 breast cancer cells. Despite activating the potent ErbB2–ErbB3 heterodimer, HRG does not accelerate cell‐cycle entry. Instead, EGF promotes earlier restriction‐point passage via ERK–FOS signaling, whereas HRG activates the AKT–MYC axis, driving transcriptional heterogeneity ...
Ririn Rahmala Febri, Ayaka Nagasato‐Ichikawa, Keita Iida, Shuhei Kimura, Akira Imamoto, Mariko Okada   +5 more
wiley   +1 more source

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

FEBS Letters, EarlyView.
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav, Bogdan I. Florea, Sebastian Geibel   +2 more
wiley   +1 more source

From junk to function — How weak selection in eukaryotes builds new parts and drives genomic complexity

FEBS Letters, EarlyView.
How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley   +1 more source

Effects of Using Sprint Trainings by Aids, Resistance and both on some Physical Components and Performance of 100 meters Dash [PDF]

مجلة الرافدين للعلوم الرياضية, 2006
The research aims at being acquainted with effects of using sprint training by aids, resistance and both on some physical components and performance of (100) meters dash in addition to the significance in some physical components and performance of (100)
an A. Jasim, Ayad M. Abdullah
doaj   +1 more source

MCT1 A1470T: A novel polymorphism for sprint performance? [PDF]

Journal of Science and Medicine in Sport, 2015
The A1470T polymorphism (rs1049434) in the monocarboxylate (lactate/pyruvate) transporter 1 gene (MCT1) has been suggested to influence athletic performance in the general population. We compared genotype distributions and allele frequencies of the MCT1 gene A1470T polymorphism between endurance athletes, sprint/power athletes and matched controls.
Sawczuk, Marek, Banting, Lauren, Cieszczyk, Pawel, Maciejewska-Karlowska, Agnieszka, Zarebska, Aleksandra, Leonska-Duniec, Agata, Jastrzebski, Zbigniew, Bishop, David, Eynon, Nir   +8 more
openaire   +3 more sources

Acute effect of resisted sprinting upon regular sprint performance

Acta Kinesiologiae Universitatis Tartuensis, 2018
The aim of this study was to investigate the acute effect of resisted sprinting upon running sprint performance. Thirty male athletes from track and field (age: 21.2±2.9 yrs, body mass: 69.8±9.8 kg, height: 1.75±0.08 m) performed two different test sessions (one day of 7×60 m runs alternating between regular and resisted sprinting and the other day 7 ...
van den Tillaar, Roland Johannes Wilhelmus, Teixeira, Amaro, Marinho, Daniel   +2 more
openaire   +3 more sources

Effect of betaine supplementation on cycling sprint performance [PDF]

Journal of the International Society of Sports Nutrition, 2012
To examine the effect of betaine supplementation on cycling sprint performance.Sixteen recreationally active subjects (7 females and 9 males) completed three sprint tests, each consisting of four 12 sec efforts against a resistance equal to 5.5% of body weight; efforts were separated by 2.5 min of cycling at zero resistance.
Pryor, J. Luke, Craig, Stuart A.S., Swensen, Thomas   +2 more
openaire   +3 more sources

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

FEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge, Vivian Pogenberg, Alexander Baumgart, Bente Siebels, Hartmut Schlüter, Michael Hecht‐Bucher, Aymelt Itzen   +6 more
wiley   +1 more source

A sled push stimulus potentiates subsequent 20-m sprint performance

, 2017
OBJECTIVES: The objective of this study was to examine the potentiating effects of performing a single sprint-style sled push on subsequent unresisted 20m sprint performance. DESIGN: Randomized crossover design.
Seitz, Laurent B., Haff, Guy Gregory, Mina, M.   +2 more
core   +1 more source