@PowerLabUofG

Working on understanding form and function of skeletal muscle and neuromuscular function across the lifespan. Dr. Geoff Power & Trainees

 Canada
uofgpowerlab.weebly.com/
Joined July 2026
  • Tweets42
  • Following268
  • Followers14
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sciencedirect.com/science/ar… Residual force enhancement (rFE) is one of muscle physiology's most fascinating phenomena. It's observed from single sarcomeres all the way to humans. Yet at the joint level, many people appear to have no rFE at all. Why? 🧵
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Stretch versus shortening contractions subsequently decrease versus increase neural drive to the human tibialis anterior physoc.onlinelibrary.wiley.c…

Stretch versus shortening contractions subsequently decrease versus increase neural drive to the...

EMG-based muscle force predictions are often inaccurate following active muscle stretch or shortening because of residual force enhancement (rFE) or depression (rFD), respectively, which can alter...

physoc.onlinelibrary.wiley.com
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PowerLab retweeted
Taku Wakahara@twakaharSep 13
3D ultrasonography reveals a twisted proximal aponeurosis within the biceps femoris long head. Mantecón-Tagarro CJ, Weide G, Baan G, Kawakami Y, Maas H. Eur J Appl Physiol. 2026 doi.org/10.1007/s00421-026-0…

3D ultrasonography reveals a twisted proximal aponeurosis within the biceps femoris long head

European Journal of Applied Physiology - This study aimed to characterize three-dimensional course and orientation of the proximal aponeurosis of the biceps femoris long head (BFlh) and examine...

link.springer.com
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PowerLab retweeted
PowerLab@PowerLabUofGAug 24
Latest from the lab 📢 🚨 Serial sarcomere adaptation to eccentric overload training is blunted in ovariectomized rats physoc.onlinelibrary.wiley.c…
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PowerLab retweeted
PowerLab@PowerLabUofGSep 8
link.springer.com/article/10… Voluntary activation of the ankle dorsiflexors is overestimated using the interpolated twitch technique with electrical stimulation @Alex_M_Zero
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link.springer.com/article/10… Voluntary activation of the ankle dorsiflexors is overestimated using the interpolated twitch technique with electrical stimulation @Alex_M_Zero
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Please check out our new publication at AJP Cell with @ChrisPerryMito and Dr. Takashi Yamada: High-intensity interval training via electrical stimulation enhances endurance by preserving sarcoplasmic reticulum Ca2+ transients in mouse skeletal muscle journals.physiology.org/doi/…

High-intensity interval training via electrical stimulation enhances endurance by preserving...

This study investigated the effects of high-intensity interval training (HIIT) or low-intensity interval training (LIIT) via electrical stimulation (ES) on muscle performance, specifically focusing...

journals.physiology.org
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The nuts and bolts of excitation-contraction coupling in skeletal muscle link.springer.com/article/10…

The nuts and bolts of excitation–contraction coupling in skeletal muscle

European Journal of Applied Physiology - Mobility in humans and all animals depends on the co-ordinated progress of essential steps linking electrical action potentials along the surface membrane...

link.springer.com
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What can muscle-function measurements reveal beyond muscle mass and histology? Join Dr. @ChrisPerryMito and Dr. Arthur Cheng on September 18 for a webinar exploring direct muscle-function assessment. 🕙11 AM ET | 8 AM PT Register now! ow.ly/cTGg50ZIfUn #MuscleFunction
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A who's who of cell types in skeletal muscle nature.com/articles/s42003-0…

A who’s who of cell types in skeletal muscle

Communications Biology - In this Review, the authors present distinguishing features for 62 cell types found in skeletal muscle and discuss how each cell type contributes to skeletal muscle function.

nature.com
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New paper alert! 📢 Open access in The Lancet Healthy Longevity: doi.org/10.1016/j.lanhl.2026…
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Latest from the lab 📢 🚨 Serial sarcomere adaptation to eccentric overload training is blunted in ovariectomized rats physoc.onlinelibrary.wiley.c…
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Differential modulation of motor unit properties during maximal concentric and eccentric fatiguing tasks with recovery in the human dorsiflexors | Journal of Applied Physiology | American Physiological Society journals.physiology.org/doi/…

Differential modulation of motor unit properties during maximal concentric and eccentric fatiguing...

This study compared motor unit discharge rate (MUDR) and contractile function during and following maximal concentric (CON) and eccentric (ECC) dorsiflexion tasks performed to 50% torque loss....

journals.physiology.org
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Biceps femoris long-head motor unit discharge rates and recruitment thresholds vary across 9 weeks of eccentric training doi.org/10.1016/j.jshs.2026.…
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A century ago, skeletal muscle was understood largely as the body’s engine. We now know that is much more vital Our new framework in @NatMetabolism: The Hallmarks of Skeletal Muscle Health. 🧵 🔗 nature.com/articles/s42255-0… #myotwitter

The hallmarks of skeletal muscle health

Nature Metabolism - This Review defines seven hallmarks of skeletal muscle homeostasis, providing a unifying framework for understanding, measuring and preserving muscle health.

nature.com
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New publication from our lab: "Glucose but not fructose ingestion improves endurance cycling performance despite similar neuromuscular fatigue at exhaustion" in collaboration with @MCRiddell1 and @devinbphillips! @MHRC_YorkU @YorkUKINE Free access here: link.springer.com/epdf/10.10…
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Our latest from the lab by the outstanding, John Buggeln. "Successful reinforcement history suppresses explicit and implicit error corrections". journals.plos.org/ploscompbi…

Successful reinforcement history suppresses explicit and implicit error corrections

Author summary Conflicting previous work has suggested that reinforcement feedback leads to either greater or smaller movement corrections. Here we elucidate that past successful actions lead to a...

journals.plos.org
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In @eLife: The titin N2A-MARP signalosome constrains muscle longitudinal hypertrophy in response to stretch doi.org/10.7554/eLife.107597…

The titin N2A-MARP signalosome constrains muscle longitudinal hypertrophy in response to stretch

Titin-associated muscle ankyrin repeat proteins limit stretch-induced longitudinal muscle hypertrophy and link titin mechanosensing to mTOR signaling.

elifesciences.org
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New work from us in @SportsMedicineJ led by PhD candidate Kyle Dunlop. “Adaptation or Maladaptation? Rethinking How Energy Restriction Outcomes Are Monitored” link.springer.com/article/10…

Adaptation or Maladaptation? Rethinking How Energy Restriction Outcomes Are Monitored

Sports Medicine - Energy restriction (ER) serves as both a corrective health measure in metabolically compromised individuals and as a strategically implemented tool to enhance athletic performance...

link.springer.com
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Fiber type specific tibialis anterior muscle atrophy and oxidative capacity reduction is contemporaneous with death of larger lumbar motor neurons in old rats - Rooker - 2026 - Physiological Reports - Wiley Online Library physoc.onlinelibrary.wiley.c…

Fiber type specific tibialis anterior muscle atrophy and oxidative capacity reduction is contempo...

Age-associated muscle weakness and atrophy of limb muscles, termed sarcopenia, is a major factor in the morbidity of the elderly. It is becoming increasingly recognized that a substantial contribut...

physoc.onlinelibrary.wiley.com
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This shifts where we should look next. Rather than asking why some muscles don't generate rFE... ...we should ask why the nervous system and musculoskeletal system fail to fully express an intrinsic mechanical property of muscle.
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You can hear Avery presenting this study at this link ( sciencedirect.com/science/ar… ) at the bottom of the page.
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