SCHOOL OF Health Sciences787400127000787400127000
SCHOOL OF Health Sciences787400127000787400127000
ASSIGNMENT COVER SHEET
STUDENT DETAILS
Student name: Student ID number: UNIT AND TUTORIAL DETAILS
Unit name: Exercise Prescription II Unit number: REHA3007
Tutorial group: Tutorial day and time: Lecturer or Tutor name: ASSIGNMENT DETAILS
Title: Length: Due date: 7th June 2024 5pm Date submitted: Home campus (where you are enrolled): DECLARATION
25401-10159925401-101599 I hold a copy of this assignment if the original is lost or damaged.
25401-3809925401-38099 I hereby certify that no part of this assignment or product has been copied from any other students work or from any other source except where due acknowledgement is made in the assignment.
25401-13969925401-139699 I hereby certify that no part of this assignment or product has been submitted by me in another (previous or current) assessment, except where appropriately referenced, and with prior permission from the Lecturer / Tutor / Unit Coordinator for this unit.
12701-6349912701-63499 No part of the assignment/product has been written/produced for me by any other person except where collaboration has been authorised by the Lecturer / Tutor /Unit Coordinator concerned.
25401-13969925401-139699 I am aware that this work will be reproduced and submitted to plagiarism detection software programs for the purpose of detecting possible plagiarism (which may retain a copy on its database for future plagiarism checking).
Students signature: OR PRINT NAME]
Note: An examiner or lecturer / tutor has the right to not mark this assignment if the above declaration has not been signed.
Assessment 2: Applied Project Written Assignment (30%)
Due Date: Friday 7th June 2024 5.00pm (week 14)
Length: 2500 words (total for both upper and lower body essays) this is simply a recommendation and not a requirement to reach this number of words. You will only be penalised for going over this limit, not for falling short of this word count should you still cover all required content to a high standard - prefer page limit with appropriate formatting see below and example later on vUWSSubmission Details: Electronic submission via Turnitin. Format for assignments must be double spaced, 12-point font, using a Vancouver referencing style. The total length should be approximately 9-10 pages maximum.
Note: See other Assessment resources in the Assessment Zone on vUWS for further details.
Feedback Details: written feedback will be provided.
Rationale
The premise of this assignment is based around examining whether different exercise variations for the upper and lower limb affect muscle activity.
Task
Work in small groups to facilitate data collection. Each student needs to have a signed off data collection sheet (checked off by the tutor), having completed the required upper and lower body exercises.
There will be an introduction and demonstration to surface electromyography (EMG), AND SAFE USE OF THE SAFETY RAZORS AND OTHER EQUIPMENT.
The assignment will require you to collect data from two upper body muscles during four different shoulder girdle movements, and from two lower body muscles during four leg exercises.
For the upper body you will measure the muscle activity from pectoralis major (PM) and triceps brachii, lateral head (TB).
For the lower body you will measure the activity from the vastus lateralis (VL) and gluteus maximus (GM).
Site placements
The following sites describe the placement of the centre of the first electrode applied.
Pectoralis Major (PM): Position first electrode 11cm below inferior border of clavicle and 7cm medial to anterior axillary line. Aligned at 45 degrees, with second electrode placed inferiomedially to the first.
Triceps Brachii (TB): Positioned at 50% acromion to olecranon distance. Place second
electrode directly above the first, aligned vertically.
Vastus Lateralis (VT): measure the distance from the anterior superior iliac spine to the superior aspect (base) of the patella. Place the first electrode on VL at 50% of this distance, with the second electrode aligned at a slight angle on your best estimate for where contracting muscle can be represented.
Gluteus Maximus (GM): Find 50% distance between left and right posterior superior iliac spines to locate sacral start point. Position first electrode 40% distance between sacrum (as found) and greater trochanter. Place second electrode inferiolaterally to the first. You can prep and apply the electrodes in the changing rooms if you are more comfortable, so only the wires are coming out of the top of the waistband when returning to the lab.
Experimental Procedure
Familiarization with all exercises
Site preparation and electrode placement
Confirm signal from muscles of interestPerform warm-up contractions for each musclePerform 3 maximal voluntary contractions (MVC) for each muscle (when you are measuring from it, i.e. if you do a leg extension but have electrodes on PM and TB, you arent really measuring from the right muscles)
MVC techniques should all be maximal isometric contractions.
PM: Starting prone in bottom push up position with arms at 45 degrees from your sides, hand placed 1 bioacromial width apart at height of the sternal head of pec. Have tester resist push up movement at a horizontal humeral angle. Resistance must be sufficient enough that no movement is allowed.
TB: Measured during the same MVC procedure as PM.
VL: Subject assumes a bottom squat position inside power cage with barbell on back. Spotting supports need to be position at a height that stops the subjects movement as their thigh reaches a position parallel with the ground. Once spotting supports are in place, subject drives out of the bottom position until the barbell meets the spotting arms which will resist the max effort contraction.
Week 6 Pilot testing only: Use a maximal isometric knee extension (have individual lie on floor, hip to 45 degrees and knee flexed to 90 degrees, foot flat on floor have partner resist extension as much as possible).
GM: Measured during the same MVC procedure as VL.
Week 6 Pilot testing only: Lying supine, position the thigh at maximal hip flexion while maintaining neutral pelvic angle. Have tester resist maximal active hip extension movement. Resistance must be sufficient to restrict any thigh movement. A second tester will be required to resist the shoulders from sliding backwards.
Upper Body Exercises
Low Incline Dumbbell (DB) Bench Press, 2 level elevation of the bench (load should be 4/10 on RPE scale, hands to pass chest at bottom and elbow to reach full extension at top)
Flat Barbell Bench Press (load 4/10 on RPE scale, weight to touch chest at bottom and elbows to reach full extension at top)
High Incline Dumb-Bell Bench Press, 4 level elevation of the bench (add load for 4/10 intensity on RPE scale)Flat DB Bench Press (4/10 RPE for applied load)
Flat DB Bench Press (4/10 RPE for applied load)
Lower Body Exercises use controlled cadence for all exercises, i.e. no bouncing. Repetition tempo for all exercises is 3030. For leg press movements ensure the femur/thigh reaches a vertical, 90 degree position relative to the bench; for all squats ensure depth reaches parallel (i.e. thigh is parallel to the floor). For leg press and squats ensure foot width is just outside the hips, with the thigh partially externally rotated. Repetition tempo for all exercises is 3030.
Isolateral Leg Press (3/10 RPE loading applied)
Front Squat (3/10 RPE loading applied)
Back Squat (3/10 RPE loading)
DB Split Squat (3/10 RPE loading)
In the final assignment students will need to submit a completed Experimental Checklist (signed off by their tutor when completed), or 10 (out of 30) marks will be deducted from their final assignment grade. This will ensure all students have taken part and engaged in the laboratory procedures. The page of this document that has been signed off must be scanned and submitted with the assignment as a secondary submission in PDF format.
You have to have a go!!!! Its not about getting it right, but TRYINGYou will be required to analyse your EMG data. The maximal activity for every repetition will be recorded, and must be normalized to the MVC for each person. This means that the muscle activity will be expressed as a percentage of maximal activity.
For example, if muscle activity was 1mV during an exercise, and the MVC recorded for that muscle was 2mV, then the normalized muscle activity is,
1mV (during exercise) / 2mV (highest during MVC) * 100 = 50.0%
YES NO
EMG VALUES FOR MVCS (fill these in here only)
1 2 3 AVERAGE (use this value for normalized)
Pec Major PMMVC
Triceps Brachii TBMVC
1 2 3 AVERAGE (use this value for normalized)
Vastus Lateralis VLMVC
Glut Max GMMVC
The values for the MVCs will be used on the subsequent pages for the respective muscle.
DO NOT divide the muscle activity for PM by the maximal voluntary contraction for VL.
Has the tutor seen me doing any of the exercises, or came over after I finished and had multiple group members confirm that I did the exercises?
YES NO
Has the tutor seen me having a good honest go at processing EMG data for entry onto the following pages? Maybe Im no good at this and didnt end up finishing it all, but did the tutor at least see me giving it a go? (even if I didnt get it right)
YES NO
UPPER BODY EXERCISES
PM Muscle Activity
Rep Rep Rep Divide values in this column by PMMVC then * 100 THESE NEED TO BE SHARED WITH YOUR TUTOR
Exercise 1 2 3 Average (mV) NORM VALUES (% PMMVC)
1 2 3 4 TB Muscle Activity
Rep Rep Rep Divide values in this column by PMMVC then * 100 THESE NEED TO BE SHARED WITH YOUR TUTOR
Exercise 1 2 3 Average (mV) NORM VALUES (% TBMVC)
1 2 3 4 LOWER BODY EXERCISES
VL Muscle Activity
Rep Rep Rep Divide values in this column by PMMVC then * 100 THESE NEED TO BE SHARED WITH YOUR TUTOR
Exercise 1 2 3 Average (mV) NORM VALUES (% PMMVC)
1 2 3 4 GM Muscle Activity
Rep Rep Rep Divide values in this column by PMMVC then * 100 THESE NEED TO BE SHARED WITH YOUR TUTOR
Exercise 1 2 3 Average (mV) NORM VALUES (% TBMVC)
1 2 3 4