@Alex_M_Zero

Postdoctoral fellow at the University of Guelph https://xitter.cf/t.co/8whmcyXtnc https://xitter.cf/t.co/dMGMoXYX0r

 Guelph, Ontario
Joined December 2021
  • Tweets31
  • Following207
  • Followers43
Alexander Zero retweeted
Harrison Finn, PhD@HarrisonFinnAug 5
Intermittent low‐intensity contractions cause a dissociation between maximal motor unit firing rates and changes in torque and contractile speed - Zero - Experimental Physiology - Wiley Online Library physoc.onlinelibrary.wiley.c…

Intermittent low‐intensity contractions cause a dissociation between maximal motor unit firing...

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...

physoc.onlinelibrary.wiley.com
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Alexander Zero retweeted
PowerLab@PowerLabUofGJul 20
Latest from the PowerLab 🚨📢 Alterations to longitudinal muscle morphology and mechanical function following immobilization and recovery in female ovariectomized and intact rats physoc.onlinelibrary.wiley.c…
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Alexander Zero retweeted
PowerLab@PowerLabUofGJul 20
Dr. Alex Zero on the muscle rig doing some stretch-shortening cycle contractions
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Alexander Zero retweeted
PowerLab@PowerLabUofGJul 20
Powerlab at the World Congress of Biomechanics
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Maximal human motor unit firing rates decline in response to non-volitional induced torque loss: further evidence for peripheral feedback inhibition | Journal of Neurophysiology | American Physiological Society journals.physiology.org/doi/…

Maximal human motor unit firing rates decline in response to nonvolitional induced torque loss:...

The purpose was to assess whether voluntary descending drive is obligatory to reduce maximal motor unit (MU) firing rates following high-intensity muscle fatiguing activation. Maximal MU firing rates...

journals.physiology.org
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Alexander Zero retweeted
Tadej Debevec@DebevecTadej30 Sep 2025
The ‘muscular wisdom’ fatigue hypothesis: historical perspectives and contemporary challenges | ⁦@EJAP_official⁩ link.springer.com/article/10…

The ‘muscular wisdom’ fatigue hypothesis: historical perspectives and contemporary challenges

European Journal of Applied Physiology - Identifying mechanisms of force loss (i.e., muscle fatigue) has been of long-standing interest. The muscular wisdom hypothesis (promulgated circa 1970)...

link.springer.com
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Alexander Zero retweeted
Greg Pearcey@gregorypearcey2 Jul 2025
I’m incredibly honoured to receive the International Society of Motor Control Early Career Investigator Award. This recognition reflects the amazing mentors, collaborators, and trainees I’ve had the privilege to learn from and work alongside. Thank-you all! 🙏
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Alexander Zero retweeted
Taku Wakahara@twakahar12 May 2025
In vivo human gracilis muscle active force‐length relationship is explained by the sliding filament theory - Wang et al. The Journal of Physiology physoc.onlinelibrary.wiley.c…

In vivo human gracilis muscle active force‐length relationship is explained by the sliding filament...

Abstract figure legend Comparison between experimental data (green arrows, upper path) and theoretical predictions (red arrows, lower path) for active force measurements from human gracilis muscles...

physoc.onlinelibrary.wiley.com
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Alexander Zero retweeted
Arthur Cheng@chenglabyorku2 May 2025
Our latest publication! Cold Water Immersion Does Not Enhance Recovery and Performance After High‐Intensity Interval Dorsiflexion Exercise - Richards - 2025 - Scandinavian Journal of Medicine & Science in Sports - Wiley Online Library onlinelibrary.wiley.com/doi/… – at Ontario, Canada

Cold Water Immersion Does Not Enhance Recovery and Performance After High‐Intensity Interval...

Cold-water immersion (CWI) has become a widely adopted method for post-exercise recovery. However, its effectiveness in restoring neuromuscular function remains inconclusive. This study examined the...

onlinelibrary.wiley.com
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Alexander Zero retweeted
JNP@JNeurophysiol23 Apr 2025
Interesting insights: Without visual feedback, torque remains stable as reduced voluntary drive limits motor output. Muscle potentiation doesn’t shift motoneuron sensitivity—it's all about perceptual cues! ow.ly/AcxN50VtvNg @Alex_M_Zero #electromyography #motoneuron
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Raaj Dudani, @Alex_M_Zero and Charles L. Rice (@westernuFHS) look to resolve the discrepancy between studies using electrical stimulation to evaluate the ‘muscular wisdom’ hypothesis! 📜buff.ly/kkS2YPu
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Even if humans resist wisdom, muscles have it on their own😆 Very nice experimental approach to studying muscle wisdom in fatigability from Charles Rice's Lab physoc.onlinelibrary.wiley.c…

‘Muscular wisdom’ revisited: Decaying rates of stimulation mitigate torque loss

During a sustained high-intensity isometric maximal voluntary contraction (MVC), declining motor unit firing rates (MUFRs) accompany torque loss. This decline (∼50% over 60 s) helps to maintain...

physoc.onlinelibrary.wiley.com
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I'm delighted to announce the lab's first paper is finally out! Huge congrats to Eric and the team. rdcu.be/dRT7z
Britton Sauerbrei@bsauerbrei17 Nov 2023
1/N Excited to share the lab’s first preprint on neural population dynamics in motor cortex and spinal motoneurons during locomotion! This project was led by Eric Kirk, an outstanding postdoc in the lab. Thread … biorxiv.org/content/10.1101/…
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#ArticlesInPress: Influence of stimulation frequency on early and late phase rate of torque and velocity development Michael T. Paris, et al. ow.ly/lowm50SncNt #JAPPL
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Another successful visit with Charles and his students doing motor unit recordings during arm cycling. Almost there now!
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#ArticlesInPress: Differential effects of stimulation frequency on isometric and concentric isotonic contractile function in human quadriceps Alexander M. Zero, et al. ow.ly/tbTw50Sb20O #JAPPL #ElectricalStimulation
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🌟Begin your week with a great #ArticlesInPress, Age-related blunting of serial sarcomerogenesis and mechanical adaptations following 4 weeks of maximal eccentric resistance training @HinksAve, et al. 🖱️ow.ly/OwwQ50QZyvy #JAPPL #Aging #Elderly @Geoff_A_Power
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How does inducing post-activation potentiation during prolonged low-frequency force depression effect motor unit firing rates? @Alex_M_Zero, Jacob Fanous and Charles L. Rice (@westernuFHS) investigate... 📜buff.ly/46YpD9V
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Our last issue of 2023 is out now! The cover image from Justs et al. shows how Arginine Kinase 1 decorates mitochondria in live motor-nerve terminals where they synapse with larval fruit-fly body-wall muscle fibers! See full issue using the link below! 🔗buff.ly/3RJDe0A
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1/N Excited to share the lab’s first preprint on neural population dynamics in motor cortex and spinal motoneurons during locomotion! This project was led by Eric Kirk, an outstanding postdoc in the lab. Thread … biorxiv.org/content/10.1101/…
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