Search Results - "Power, Geoffrey A."

Modifiability of the history dependence of force through chronic eccentric and concentric biased resistance training by Chen, Jackey, Power, Geoffrey A

“…The increase and decrease in steady-state isometric force following active muscle lengthening and shortening are referred to as residual force enhancement…”
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Differential changes in muscle architecture and neuromuscular fatigability induced by isometric resistance training at short and long muscle-tendon unit lengths by Akagi, Ryota, Hinks, Avery, Power, Geoffrey A

“…We evaluated the effects of differential muscle architectural adaptations on neuromuscular fatigue resistance. Seven young males and six females participated…”
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Ultrasonographic measurements of fascicle length overestimate adaptations in serial sarcomere number by Hinks, Avery, Franchi, Martino V., Power, Geoffrey A.

“…Ultrasound‐derived measurements of muscle fascicle length (FL) are often used to infer increases (chronic stretch or training) or decreases (muscle disuse or…”
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Age-related differences in the loss and recovery of serial sarcomere number following disuse atrophy in rats by Hinks, Avery, Power, Geoffrey A

“…Older adults exhibit a slower recovery of muscle mass following disuse atrophy than young adults. At a smaller scale, muscle fibre cross-sectional area (i.e.,…”
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The importance of serial sarcomere addition for muscle function and the impact of aging by Hinks, Avery, Hawke, Thomas J, Franchi, Martino V, Power, Geoffrey A

“…During natural aging, skeletal muscle experiences impairments in mechanical performance due, in part, to changes in muscle architecture and size, notably with…”
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Neuroprotective effects of exercise on the aging human neuromuscular system by Allen, Matti D., Dalton, Brian H., Gilmore, Kevin J., McNeil, Chris J., Doherty, Timothy J., Rice, Charles L., Power, Geoffrey A.

“…Human biological aging from maturity to senescence is associated with a gradual loss of muscle mass and neuromuscular function. It is not until very old age…”
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Blood Pressure Responses to Static and Dynamic Knee Extensor Exercise between Sexes: Role of Absolute Contraction Intensity by LEE, JORDAN B., LUTZ, WILLIAM, OMAZIC, LUCAS J., JORDAN, MITCHELL A., CACOILO, JOSEPH, GARLAND, MATTHEW, POWER, GEOFFREY A., MILLAR, PHILIP J.

“…Males have larger blood pressure (BP) responses to relative intensity static handgrip exercise compared to females. Controlling for absolute load (maximal…”
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The addition of blood flow restriction during resistance exercise does not increase prolonged low‐frequency force depression by Pignanelli, Christopher, Robertson, Alexa A., Hirsch, Steven M., Power, Geoffrey A., Burr, Jamie F.

“…At a given exercise intensity, blood flow restriction (BFR) reduces the volume of exercise required to impair post‐exercise neuromuscular function. Compared to…”
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Submaximal eccentric resistance training increases serial sarcomere number and improves dynamic muscle performance in old rats by Hinks, Avery, Vlemmix, Ethan, Power, Geoffrey A.

“…The age‐related loss of muscle mass is partly accounted for by the loss of sarcomeres in series, contributing to declines in muscle mechanical performance…”
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Home-based resistance training performed at either fast or slow speeds improves power output in older adults by Hirata, Kosuke, Ito, Mari, Nomura, Yuta, Kawashima, Chiho, Yoshida, Tsukasa, Yamada, Yosuke, Tillin, Neale A., Power, Geoffrey A., Akagi, Ryota

“…We investigated the effect of an unsupervised, body mass- home-based resistance training program in older adults performed at either a fast or slow contractile…”
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Stretch-shortening cycles protect against the age-related loss of power generation in rat single muscle fibres by Patterson, Makenna A., Hinks, Avery, Njai, Binta S., Dalton, Benjamin E., Hubbard, Emma F., Power, Geoffrey A.

“…Aging is associated with impaired strength and power during isometric and shortening contractions, however, during lengthening (i.e., eccentric) contractions,…”
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Editorial: The Stretch-Shortening Cycle of Active Muscle and Muscle-Tendon Complex: What, Why and How It Increases Muscle Performance? by Seiberl, Wolfgang, Hahn, Daniel, Power, Geoffrey A., Fletcher, Jared R., Siebert, Tobias

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Force depression following a stretch-shortening cycle is independent of stretch peak force and work performed during shortening by Fortuna, Rafael, Kirchhuebel, Hannah, Seiberl, Wolfgang, Power, Geoffrey A., Herzog, Walter

“…The steady-state isometric force following active muscle shortening or lengthening is smaller (force depression; FD) or greater (residual force enhancement;…”
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Time course changes in in vivo muscle mechanical function and Ca2+ regulation of force following experimentally induced gradual ovarian failure in mice by Hinks, Avery, Dalton, Benjamin E., Mashouri, Parastoo, Flewwelling, Luke D., Pyle, William Glen, Cheng, Arthur J., Power, Geoffrey A.

“…The abrupt cessation of ovarian hormone release is associated with declines in muscle contractile function, yet the impact of gradual ovarian failure on muscle…”
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Motor Unit Survival in Lifelong Runners Is Muscle Dependent by POWER, Geoffrey A, DALTON, Brian H, BEHM, David G, DOHERTY, Timothy J, VANDERVOORT, Anthony A, RICE, Charles L

“…A contributing factor to the loss of muscle mass and strength with adult aging is the reduction in the number of functioning motor units (MUs). Recently, we…”
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Trade-Off Between Maximal Power Output and Fatigue Resistance of the Knee Extensors for Older Men by Akagi, Ryota, Nomura, Yuta, Kawashima, Chiho, Ito, Mari, Oba, Kosuke, Tsuchiya, Yuma, Power, Geoffrey A, Hirata, Kosuke

“…This study investigated associations of fatigue resistance determined by an exercise-induced decrease in neuromuscular power with prefatigue neuromuscular…”
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Residual force enhancement due to active muscle lengthening allows similar reductions in neuromuscular activation during position- and force-control tasks by Marion, Rhiannon, Power, Geoffrey A.

“…•The history of dependence of force is known to increase a muscle's force-producing capacity following active lengthening (residual torque enhancement) (rTE)…”
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Training Induced Changes to Skeletal Muscle Passive Properties Are Evident in Both Single Fibers and Fiber Bundles in the Rat Hindlimb by Noonan, Alex M., Mashouri, Parastoo, Chen, Jackey, Power, Geoffrey A., Brown, Stephen H. M.

“…Introduction: The passive mechanical behavior of skeletal muscle represents both important and generally underappreciated biomechanical properties with little…”
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Residual force enhancement following shortening is speed-dependent by Fortuna, Rafael, Power, Geoffrey A., Mende, Esther, Seiberl, Wolfgang, Herzog, Walter

“…The steady-state isometric force following active muscle shortening or lengthening is smaller (force depression; FD) or greater (residual force enhancement;…”
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Influence of 4 weeks of downhill running on calcium sensitivity of rat single muscle fibers by Hubbard, Emma F., Hinks, Avery, Mashouri, Parastoo, Power, Geoffrey A.

“…Improved Ca2+ sensitivity has been suggested as a mechanism behind enhancements in muscle mechanical function following eccentric training. However, little is…”
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