What has transcranial magnetic stimulation taught us about neural adaptations to strength training? A brief review

The evidence for neural mechanisms underpinning rapid strength increases has been investigated and discussed for over 30 years using indirect methods, such as surface electromyography, with inferences made toward the nervous system. Alternatively, electrical stimulation techniques such as the Hoffman reflex, volitional wave, and maximal wave have provided evidence of central nervous system changes at the spinal level. For 25 years, the technique of transcranial magnetic stimulation (TMS) has allowed for noninvasive supraspinal measurement of the human nervous system in a number of areas such as fatigue, skill acquisition, clinical neurophysiology, and neurology. However, it has only been within the last decade that this technique has been used to assess neural changes after strength training. The aim of this brief review is to provide an overview of TMS, discuss specific strength training studies that have investigated changes, after short-term strength training in healthy populations in upper and lower limbs, and conclude with further research suggestions and the application of this knowledge for the strength and conditioning coach.

Sustainability and within use office building adaptations : a comparison of Dutch and Australian practices

Local Authorities worldwide are encouraging adaptation as a means of reducing building related urban energy consumption and greenhouse gas emissions. The City of Melbourne is promoting the retrofit of 1,200 CBD properties before 2020 with sustainability measures as part of their policy to become a carbon neutral city. Australian cities date from 1837 to the present day whereas some European cities have been inhabited for over two millennia. The concepts of adaptation and evolution of buildings and suburbs is well developed in Europe, though the scale of some of the post war developments has created different forms of building perhaps less adaptable or suited to change. The need to adapt buildings and to reduce environmental footprints becomes more pressing over time as global concentrations of carbon dioxide increase. Is it possible for Europeans to learn from Australian practices and vice averse? Through examination of office building adaptation in Melbourne and Amsterdam, it is possible to learn where similarities and differences exist and where new practices can be shared.

This paper addressed the questions; What are the key attributes influencing adaptations in Melbourne and Amsterdam office buildings, and what are the similarities and differences? Using the Melbourne CBD and Amsterdam as a case study, the research analysed 7393 commercial building adaptations in Melbourne and 98 office buildings in Amsterdam where adaptations were completed. The outcomes of this research show where similarities and differences exist and are relevant to all urban areas where adaptation of existing office buildings can mitigate the impacts of climate change and enhance the city for another generation of citizens and users.

Visualising literature : screen adaptation and the process of reading/viewing

This study demonstrates a method of reading/viewing screen adaptations of literary works as intertextually situated works of art which interact through differences to make possible new interpretations. Switching between possible interpretations undermines views of the world which critics find embedded in the screen adaptation and literary precursors.

Corticospinal adaptations and strength maintenance in the immobilized arm following 3 weeks unilateral strength training

Cross-education strength training has being shown to retain strength and muscle thickness in the immobilized contralateral limb. Corticospinal mechanisms have been proposed to underpin this phenomenon; however, no transcranial magnetic stimulation (TMS) data has yet been presented. This study used TMS to measure corticospinal responses following 3 weeks of unilateral arm training on the contralateral, immobilize arm. Participants (n = 28) were randomly divided into either immobilized strength training (Immob + train) immobilized no training (Immob) or control. Participants in the immobilized groups had their nondominant arm rested in a sling, 15 h/day for 3 weeks. The Immob + train group completed unilateral arm curl strength training, while the Immob and control groups did not undertake training. All participants were tested for corticospinal excitability, strength, and muscle thickness of both arms. Immobilization resulted in a group x time significant reduction in strength, muscle thickness and corticospinal excitability for the untrained limb of the Immob group. Conversely, no significant change in strength, muscle thickness, or corticospinal excitability occurred in the untrained limb of the Immob + train group. These results provide the first evidence of corticospinal mechanisms, assessed by TMS, underpinning the use of unilateral strength training to retain strength and muscle thickness following immobilization of the contralateral limb.

Literary praxis : engaging with texts in classroom settings

This article focuses on a small group of teachers as they reflect on the strategies they use to support their students in their efforts to interpret literary texts. We argue that the interpretation of literary texts within classroom settings is mediated in complex ways: by the social context of the classroom, the insti-tutional setting of the school (including its curriculum and organization), as well as mandated educa-tional policies. These dimensions shape the relationships between teachers and students as they engage in the ‘social exchange of meanings’ (Reid, 1984) that is prompted by the texts chosen for study. Stu-dents bring their own biographies to this exchange, drawing on their experiences outside school in order to make meanings from the texts they are required to read. Teachers, on the other hand, also bring their biographies with them into classrooms, including their beliefs about the value of a literary educa-tion. By exploring the reflections in which a small group of teachers of literature engage about their work, we ask questions about the value of a literary education, reaffirming its significance in the con-temporary world.

Book review: Richard Lance Keeble and John Tulloch (eds), Global literary journalism: exploring the journalistic imagination

Reviews a new book on international literary journalism and includes critical commentary on the Australian field of literary journalism.

Xanthine oxidase inhibition attenuates skeletal muscle signaling following acute exercise but does not impair mitochondrial adaptations to endurance training.

The aim of this research was to examine the impact of the xanthine oxidase (XO) inhibitor allopurinol on the skeletal muscle activation of cell signaling kinases' and adaptations to mitochondrial proteins and antioxidant enzymes following acute endurance exercise and endurance training. Male Sprague-Dawley rats performed either acute exercise (60 min of treadmill running, 27 m/min, 5% incline) or 6 wk of endurance training (5 days/wk) while receiving allopurinol or vehicle. Allopurinol treatment reduced XO activity to 5% of the basal levels (P < 0.05), with skeletal muscle uric acid levels being almost undetectable. Following acute exercise, skeletal muscle oxidized glutathione (GSSG) significantly increased in allopurinol- and vehicle-treated groups despite XO activity and uric acid levels being unaltered by acute exercise (P < 0.05). This suggests that the source of ROS was not from XO. Surprisingly, muscle GSSG levels were significantly increased following allopurinol treatment. Following acute exercise, allopurinol treatment prevented the increase in p38 MAPK and ERK phosphorylation and attenuated the increase in mitochondrial transcription factor A (mtTFA) mRNA (P < 0.05) but had no effect on the increase in peroxisome proliferator-activated receptor-γ coactivator-1α (PGC-1α), nuclear respiratory factor-2, GLUT4, or superoxide dismutase mRNA. Allopurinol also had no impact on the endurance training-induced increases in PGC-1α, mtTFA, and mitochondrial proteins including cytochrome c, citrate synthase, and β-hydroxyacyl-CoA dehydrogenase. In conclusion, although allopurinol inhibits cell signaling pathways in response to acute exercise, the inhibitory effects of allopurinol appear unrelated to exercise-induced ROS production by XO. Allopurinol also has little effect on increases in mitochondrial proteins following endurance training.

Delight and revolution: literary studies, aesthetics and ideology

 A commissioned article for the special edition on the future of English as a discipline.

Literary conversations: an Australian classroom

Teachers listen attentively to the classroom conversations in which their students engage. This often involves delicate judgments about whether to stay silent or intervene. Should I move the discussion along by asking a question or making a comment? Or would it be better to allow the conversation to continue, however awkwardly the students might be expressing their insights? Awkward or not, there is value in providing opportunities for young people to find the words they need in order to converse with one another in classroom settings, building on each other’s sentences in an effort to jointly construct meaning and reach understanding.