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Unit of study_

EXSS2030: Muscle Adaptations to Use and Disuse

Semester 2, 2022 [Normal day] - Camperdown/Darlington, Sydney

The purpose of the unit is to provide students with a comprehensive understanding of skeletal muscle function and how muscle adapts to increased use, specifically how muscle responds to high-resistance training (HRT, also know as strength training) and to disuse. Students will gain an understanding of muscle force development in terms of myosin function and organization (sarcomeres, myofibrils, muscle fibers) and the neural processes involved in maximal voluntary contractions. Students will then apply this knowledge to understand how HRT works in terms of hypertrophy and neural adaptations, the process of muscle atrophy during disuse and the effects of retraining after disuse. Students will integrate this biological understanding with an evidence-base approach to HRT prescription. Students apply and integrate these approaches gain skills in the real-world prescription of HRT through participation in HRT program in practical session, and then gain skills in data analysis via interpretation of their own responses to training. Students will gain skills in the ability to critically evaluate, and communicate applications of evidence-base research in healthy and clinical populations. Finally the unit examines concepts on muscle energy balance in terms of methods and control of ATP production and use, and these concepts are used to understand the concepts of peripheral and central fatigue.

Unit details and rules

Unit code EXSS2030
Academic unit Movement Sciences
Credit points 6
Prohibitions
? 
EXSS1029
Prerequisites
? 
None
Corequisites
? 
None
Assumed knowledge
? 

None

Available to study abroad and exchange students

No

Teaching staff

Coordinator Tom Gwinn, tom.gwinn@sydney.edu.au
Tutor(s) Yareni Guerrero Ayala, yareni.guerrero@sydney.edu.au
Type Description Weight Due Length
Final exam (Record+) Type B final exam Final exam
Short answer and MCQ
50% Formal exam period 2 hours
Outcomes assessed: LO1 LO2 LO3 LO4 LO6
Tutorial quiz Quiz 1
Short answer and MCQ
5% Week 04
Due date: 22 Aug 2022 at 23:55
15 minutes
Outcomes assessed: LO1
Tutorial quiz Quiz 2
Short answer and MCQ
5% Week 06
Due date: 05 Sep 2022 at 23:55
15 minutes
Outcomes assessed: LO1 LO2
Tutorial quiz Quiz 3
Short answer and MCQ
5% Week 08
Due date: 19 Sep 2022 at 23:55
15 minutes
Outcomes assessed: LO2
Presentation group assignment Evidence base presentation
Oral presentation and report
15% Week 10 15 minutes, 500 words
Outcomes assessed: LO4
Tutorial quiz Quiz 4
Short answer and MCQ
5% Week 10
Due date: 17 Oct 2022 at 23:55
15 minutes
Outcomes assessed: LO3 LO4
Assignment group assignment Practical Report
Written Report
15% Week 12
Due date: 28 Oct 2022 at 23:55
3 A4 pages
Outcomes assessed: LO5
group assignment = group assignment ?
Type B final exam = Type B final exam ?

Assessment summary

4 x ONLINE QUIZZES (5% each) MCQ quiz plus short answer questions reviewing the previous 2 weeks lecture content. Each quiz will take approximately 15 min to complete, but will be ‘open’ for one week.

PRACTICAL REPORT: Group assignment.  Students will analyse cross-sectional muscle strength data collected in pre-training assessment practical and longitudinal data from high-resistance training program. Report will using spreadsheet functions to determine group means, maximum and minimum values, and histogram plots. Reports will include short answer questions related to the interpretation of the data analysis.

EVIDENCE-BASE PRESENTATION: Group assignment. Students acquire skills evidence-based practice by evaluating and presenting a review of a randomised controlled trial examining a high-resistance training intervention. The study is self-selected from a master list of studies in populations including healthy older-adult, frail elderly, a range of clinical conditions (including diabetes, CHF, CAD and COPD) and healthy young adults. All students in a group are expected to contribute to the live presentation. Attendance at the presentation session is compulsory. If students cannot attend physically, then Zoom attendance is required. Non-attendance of individual student in a group will result in that student receiving half marks for the presentation, in the absence of Special Consideration submission.

FINAL EXAM: The exam questions will cover the lecture and tutorial material from week 1-12.

Detailed information for each assessment can be found on Canvas.

Assessment criteria

The University awards common result grades, set out in the Coursework Policy 2014 (Schedule 1).

As a general guide, a high distinction indicates work of an exceptional standard, a distinction a very high standard, a credit a good standard, and a pass an acceptable standard.

Result name

Mark range

Description

High distinction

85 - 100

 

Distinction

75 - 84

 

Credit

65 - 74

 

Pass

50 - 64

 

Fail

0 - 49

When you don’t meet the learning outcomes of the unit to a satisfactory standard.

For more information see sydney.edu.au/students/guide-to-grades.

For more information see guide to grades.

Late submission

In accordance with University policy, these penalties apply when written work is submitted after 11:59pm on the due date:

  • Deduction of 5% of the maximum mark for each calendar day after the due date.
  • After ten calendar days late, a mark of zero will be awarded.

This unit has an exception to the standard University policy or supplementary information has been provided by the unit coordinator. This information is displayed below:

Practical report: Deduction of 5% of the maximum mark for each calendar day after the due date. After ten calendar days late, a mark of zero will be awarded.

Academic integrity

The Current Student website  provides information on academic integrity and the resources available to all students. The University expects students and staff to act ethically and honestly and will treat all allegations of academic integrity breaches seriously.  

We use similarity detection software to detect potential instances of plagiarism or other forms of academic integrity breach. If such matches indicate evidence of plagiarism or other forms of academic integrity breaches, your teacher is required to report your work for further investigation.

You may only use artificial intelligence and writing assistance tools in assessment tasks if you are permitted to by your unit coordinator, and if you do use them, you must also acknowledge this in your work, either in a footnote or an acknowledgement section.

Studiosity is permitted for postgraduate units unless otherwise indicated by the unit coordinator. The use of this service must be acknowledged in your submission.

Simple extensions

If you encounter a problem submitting your work on time, you may be able to apply for an extension of five calendar days through a simple extension.  The application process will be different depending on the type of assessment and extensions cannot be granted for some assessment types like exams.

Special consideration

If exceptional circumstances mean you can’t complete an assessment, you need consideration for a longer period of time, or if you have essential commitments which impact your performance in an assessment, you may be eligible for special consideration or special arrangements.

Special consideration applications will not be affected by a simple extension application.

Using AI responsibly

Co-created with students, AI in Education includes lots of helpful examples of how students use generative AI tools to support their learning. It explains how generative AI works, the different tools available and how to use them responsibly and productively.

WK Topic Learning activity Learning outcomes
Week 01 Online lecture: Normal strength / Overview of adaptations to resistance training Online class (1 hr) LO1 LO4
Live Zoom - Unit overview and introduction Lecture (1 hr) LO1
Week 02 Online lecture: Evidence-for resistance training/ Myosin structure and function / Sarcomeres, myofibrils and muscle fibres Online class (1 hr) LO1 LO4
Live Zoom - Review: Normal strength / Training prescription Lecture (1 hr) LO1 LO4
Arm flexion 1RM & training Practical (2 hr) LO5
Week 03 Online lecture: Summation of forces and movements / concentric & eccentric contractions / Fibre types Online class (1 hr) LO1
Live Zoom - Review: Myosin, sarcomeres, myofibril and muscle fibres Lecture (1 hr) LO1
Tutorial 1: Muscle structure and function Tutorial (2 hr) LO1
Week 04 Online lecture: Muscle activation / EC coupling / neural adaptations to resistance training Online class (1 hr) LO1 LO2
Live Zoom - Review: forces & movements / concentric & eccentric contractions Lecture (1 hr) LO1
Week 05 Online lecture: Delayed onset muscle soreness / Protein structure / Steps in protein synthesis Online class (1 hr) LO2
Live Zoom - Review: Muscle activation and neural adaptations to training Lecture (1 hr) LO1 LO2
Use of pin load weight machines Practical (2 hr) LO5
Week 06 Online lecture: Effect of resistance training on protein synthesis/ Cellular mechanisms of muscle hypertrophy Online class (1 hr) LO2
Live Zoom - Review: DOMS / Protein synthesis Lecture (1 hr) LO2
Tutorial 2: Eccentric and concentric contractions Tutorial (2 hr) LO1
Week 07 Online lecture: Detraining and dropouts Mechanisms of disuse muscle atrophy Rates of reaction 1 Online class (1 hr) LO2 LO3
Live Zoom - Review: Muscle hypertrophy Lecture (1 hr) LO2 LO3
Tutorial 3: Activation, Adaptations to resistance training Tutorial (2 hr) LO1 LO2
Week 08 Online lecture: Matching ATP resynthesis to use / The CK and AK reactions Online class (1 hr) LO6
Live Zoom - Review: Detraining, dropouts / Disuse muscle atrophy Lecture (1 hr) LO3
Elastic training and step training Practical (2 hr) LO5
Week 09 Online lecture: Aerobic metabolism: OxPhos and Dhydrogenase reactions / Allosteric enzymes Online class (1 hr) LO6
Live Zoom - Review: Matching ATP resynthesis to use / The CK and AK reactions Lecture (1 hr) LO6
Week 10 Live Zoom - Review: Lactate accumulation and central fatigue/ Integrated perspective of energy metabolism Lecture (1 hr) LO6
Online lecture: Lactate accumulation and central fatigue/ Integrated perspective of energy metabolism Online class (1 hr) LO6
Student Presentation: Review of resistance training RTC Presentation (2 hr) LO4
Week 11 Online lecture: Screening and safety for resistance training/ Resistance training for older clients Online class (1 hr) LO2 LO5
Live Zoom - Review: Screening and safety for resistance training/ Resistance training for older clients Lecture (1 hr) LO2 LO4
Week 12 Online lecture: Muscle atrophy in CHF and COPD/ Malnutrition and atrophy Online class (1 hr) LO2 LO3
Live Zoom - Review: Muscle atrophy in CHF and COPD/ Malnutrition and atrophy Lecture (1 hr) LO2 LO3
Tutorial 4: Energy metabolism Tutorial (2 hr) LO6

Attendance and class requirements

Attendance: Students are encouraged to attend tutorials and practicals 

The Week 10 presentations are group presentations. All members of the group are required to participate in the presentation, i.e. each person has to participate in that presentation by speaking to some of the specific presentation slides. Non-participation without Special Consideration will result in the student receiving 50% of the mark received by the other students in that presentation group.

Study commitment

Typically, there is a minimum expectation of 1.5-2 hours of student effort per week per credit point for units of study offered over a full semester. For a 6 credit point unit, this equates to roughly 120-150 hours of student effort in total.

Required readings

There is no prescribed textbook for this unit. Content is referenced to primary research articles on a lecture-to-lecture basis. Some examples of references for further non-examinable reading are given below. Links to reference are available on Canvas.

  • Hubal MJ. et al. Variability in muscle size and strength gain after unilateral resistance training. Med Sci Sports Exerc. 37:964-72, 2005
  • Schoenfeld, BJ et al. Strength and Hypertrophy Adaptations Between Low- vs. High-Load Resistance Training: A Systematic Review and Meta-analysis Journal of Strength and Conditioning Research 31; 3508 3523, 2017
  • Bickel CS et al. Exercise Dosing to Retain Resistance Training Adaptations in Young and Older Adults. Med Sci Sports Exerc 43: 1177 1187, 2011.
  • Houston ME, et al Muscle performance, morphology and metabolic capacity during strength training and detraining: a one leg model. Eur J Appl Physiol 51 25 35 1983
  • Josse AR. et al Body composition and strength changes in women with milk and resistance exercise. Medicine & Science in Sports & Exercise. 42:1122-30, 2010.
  • Wang N. et al. Muscle fiber types of women after resistance training — Quantitative ultrastructure and enzyme activity. Pflugers Archiv. 424:494 502, 1993.
  • Mcleod JC et al. Resistance exercise training as a primary countermeasure to age-related chronic disease. Front Physiol. 10, 1-11, 2019

Learning outcomes are what students know, understand and are able to do on completion of a unit of study. They are aligned with the University's graduate qualities and are assessed as part of the curriculum.

At the completion of this unit, you should be able to:

  • LO1. Explain the limits to voluntary muscle force production in terms of both muscle structure and neural activation
  • LO2. Explain the neuro-muscular adaptations to high-resistance training in health, aging and disease
  • LO3. Explain the neuro-muscular adaptations to muscle disuse, aging and chronic disease states effecting skeletal muscle
  • LO4. Acquire skills in evaluating evidence-based guidelines for prescription of high-resistance training in health and disease
  • LO5. Acquire skills and experience in the assessment of maximal voluntary strength and in the prescription and evaluation of a high-resistance training program
  • LO6. Explain muscle energy balance in terms of ATP demand and supply and explain fatigue during muscular exercise.

Graduate qualities

The graduate qualities are the qualities and skills that all University of Sydney graduates must demonstrate on successful completion of an award course. As a future Sydney graduate, the set of qualities have been designed to equip you for the contemporary world.

GQ1 Depth of disciplinary expertise

Deep disciplinary expertise is the ability to integrate and rigorously apply knowledge, understanding and skills of a recognised discipline defined by scholarly activity, as well as familiarity with evolving practice of the discipline.

GQ2 Critical thinking and problem solving

Critical thinking and problem solving are the questioning of ideas, evidence and assumptions in order to propose and evaluate hypotheses or alternative arguments before formulating a conclusion or a solution to an identified problem.

GQ3 Oral and written communication

Effective communication, in both oral and written form, is the clear exchange of meaning in a manner that is appropriate to audience and context.

GQ4 Information and digital literacy

Information and digital literacy is the ability to locate, interpret, evaluate, manage, adapt, integrate, create and convey information using appropriate resources, tools and strategies.

GQ5 Inventiveness

Generating novel ideas and solutions.

GQ6 Cultural competence

Cultural Competence is the ability to actively, ethically, respectfully, and successfully engage across and between cultures. In the Australian context, this includes and celebrates Aboriginal and Torres Strait Islander cultures, knowledge systems, and a mature understanding of contemporary issues.

GQ7 Interdisciplinary effectiveness

Interdisciplinary effectiveness is the integration and synthesis of multiple viewpoints and practices, working effectively across disciplinary boundaries.

GQ8 Integrated professional, ethical, and personal identity

An integrated professional, ethical and personal identity is understanding the interaction between one’s personal and professional selves in an ethical context.

GQ9 Influence

Engaging others in a process, idea or vision.

Outcome map

Learning outcomes Graduate qualities
GQ1 GQ2 GQ3 GQ4 GQ5 GQ6 GQ7 GQ8 GQ9

This section outlines changes made to this unit following staff and student reviews.

Students commented that last year there was a lack of specific comments on the face-to-face student presentation of a resistance training RTC. This year a feedback system will be implemented so students can receive comments from both markers.

This unit of study may require you to attend a teaching activity timetabled in teaching venues installed with the University’s Clinical Recording and Observation System (CROS) in the Susan Wakil Health Building. Students should be aware of the privacy and information management implications of this system. For more information, please refer to the University’s Privacy Statement.

Work, health and safety

Practicals and tutorials will conform to current Convid-19 safety precautions and recommendations.

Disclaimer

The University reserves the right to amend units of study or no longer offer certain units, including where there are low enrolment numbers.

To help you understand common terms that we use at the University, we offer an online glossary.