Results 211 to 220 of about 189,411 (284)

Movements, growth rates and strong sexual segregation in critically endangered tope sharks Galeorhinus galeus in the Northeast Atlantic. [PDF]

J Fish Biol
Cameron LWJ, Jones EO, Mensink PJ, Roche WK, Wögerbauer C, Payne NL.   +5 more
europepmc   +1 more source

Identification of the individual cardiac contraction threshold during high‐frame‐rate stress echocardiography

Experimental Physiology, EarlyView.
Abstract The clinical assessment of cardiovascular function during exercise using stress echocardiography is essential for accurate cardiac diagnosis. However, normal limitations of cardiac deformation responses to increasing physical exertion remain poorly understood.
Fabian Spahiu, Max Hagemann, Michelle Ottlik, Moritz Lampkemeyer, Eric J. Stöhr   +4 more
wiley   +1 more source

Using citizen science photographs to identify reproductive events in an oviparous elasmobranch. [PDF]

J Fish Biol
Mawer R, Dodd J, Thorburn J, Burns NM, Bailey DM.   +4 more
europepmc   +1 more source

Intermittent low‐intensity contractions cause a dissociation between maximal motor unit firing rates and changes in torque and contractile speed

Experimental Physiology, EarlyView.
Abstract The purpose was to test: (1) whether the decline in maximal motor unit (MU) firing rate is an invariable response when maximal voluntary contraction (MVC) torque is reduced following a submaximal muscle fatiguing task; and (2) whether fatigue‐induced slowing of contractile speed and firing rate decline are co‐dependent. Ten participants (three
Alexander M. Zero, Raaj A. Dudani, Jacob Fanous, Charles L. Rice   +3 more
wiley   +1 more source

The physiological stress response of juvenile nurse sharks (Ginglymostoma cirratum) to catch-and-release recreational angling. [PDF]

PLoS One
Giesy KC, Jerome J, Wester J, D'Alessandro E, McDonald MD, Macdonald C.   +5 more
europepmc   +1 more source

Is resting muscle sympathetic nerve activity related to peripheral or cerebrovascular haemodynamics at high altitude? A retrospective analysis

Experimental Physiology, EarlyView.
Abstract High‐altitude hypoxia elicits several profound physiological responses, including substantial increases in muscle sympathetic nerve activity (MSNA); however, the association of this heightened MSNA with cardiovascular and cerebrovascular haemodynamics remains unclear in lowlanders and indigenous highlander populations.
Ty J. A. MacDonald, Jenna C. McCrone, Christabel Osei‐Boateng, Connor D. Wideman, Samantha L. Tsioros, Joshua C. Tremblay, Alexander Patrician, Connor A. Howe, Geoff B. Coombs, Benjamin S. Stacey, Lydia L. Simpson, Mike Stembridge, Craig D. Steinback, Jonathan P. Moore, Travis D. Gibbons, Ryan L. Hoiland, Francisco Villafuerte, Gilbert Moralez, Philip N. Ainslie, Michael M. Tymko   +19 more
wiley   +1 more source

The Economics of Mitigating Flexible Hydropower: A Systematic Review. [PDF]

Environ Manage
Bipa NJ, Pisaturo GR, Venus TE.
europepmc   +1 more source

Muscle cramp susceptibility is associated with muscle‐specific modulation of human motoneuron discharge patterns

Experimental Physiology, EarlyView.
Abstract Muscle cramps are painful, involuntary contractions thought to arise from altered spinal motoneuron excitability, potentially involving persistent inward currents (PICs). We examined whether cramp susceptibility is associated with altered PIC‐related motoneuron behaviour and whether electrically induced cramp modifies these estimates.
Timothée Popesco, Romain Dos Santos, Ilan Cassoli, Gabriel S. Trajano, Gregory E. P. Pearcey, Nicola A. Maffiuletti, Chris Donnelly, Bengt Kayser, Nicolas Place   +8 more
wiley   +1 more source

Diet composition of data-limited marlins (Istiophoridae) in the Northwest Atlantic. [PDF]

J Fish Biol
Dello Russo JJ, Logan JM, Austin R, Whitener ZT, Sée I, Hurley BM, Kerr LA, Quattro JM, Golet WJ.   +8 more
europepmc   +1 more source

Age‐related loss of hysteresis in the spontaneous vascular sympathetic baroreflex is associated with altered neural rather than mechanical control

Experimental Physiology, EarlyView.
Abstract The vascular sympathetic baroreflex is critical for stabilising blood pressure. A notable feature of this reflex is hysteresis, a directional asymmetry in responsiveness during rising versus falling pressure that is evident in young adults but attenuated in older age.
Guto Wyn Hughes, Denis J. Wakeham, Christopher J. A. Pugh, Zoe H. Adams, Rachel N. Lord, Jonathan P. Moore   +5 more
wiley   +1 more source