Basic Biomechanics
7th Edition
ISBN: 9780073522760
Author: Susan J Hall
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 7, Problem 5IP
INTRODUCTORY PROBLEMS
5. List the muscles used as agonists, antagonists, stabilizers, and neutralizers during the performance of a push-up.
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Isometric exercise is best described as
applying a force
O a) with movement through a full and
complete range of motion
O b) while a muscle is lengthening and
returning to a resting position
c) without any change in length of
the muscle
O d) at a constant speed
All exercises below are examples of closed kinetic chain exercises except...
Push up
Overhead press
Squat
Bridge
Before testing a true 1-RM exercise, why should you allow your client to complete 3 trial repetitions first?
Select 2 correct answer(s)
To reduce risk of injury
To ensure form is correct
To fatigue the muscles to a "normal" functional strength
To focus on the eccentric and concentric portions of the movement
Chapter 7 Solutions
Basic Biomechanics
Ch. 7 - Construct a chart listing all muscles crossing the...Ch. 7 - Prob. 2IPCh. 7 - Prob. 3IPCh. 7 - INTRODUCTORY PROBLEMS 4. List the muscles that...Ch. 7 - INTRODUCTORY PROBLEMS 5. List the muscles used as...Ch. 7 - INTRODUCTORY PROBLEMS 6. Explain how the use of an...Ch. 7 - INTRODUCTORY PROBLEMS 7. Select a familiar...Ch. 7 - 8. Using the diagram in Sample Problem 7.1 as a...Ch. 7 - 10. Solve Sample Problem 7.2 with the addition of...Ch. 7 - Identify the sequence of movements that occur at...
Ch. 7 - Which muscles are most likely to serve as agonists...Ch. 7 - Prob. 3APCh. 7 - ADDITIONAL PROBLEMS 4. Which muscles are most...Ch. 7 - Prob. 5APCh. 7 - Prob. 6APCh. 7 - 8. How much tension (Fm) must be supplied by the...Ch. 7 - 9. What is the length of the moment arm between...Ch. 7 - Prob. 10AP
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, bioengineering and related others by exploring similar questions and additional content below.Similar questions
- 2. We discussed how muscle spindles allow for precision of movement as a muscle lengthens, and particular muscles which require more precise movements will contain more spindles. In addition to this precision control over muscle length, there are other differences between muscles which enable more precision in how much force is generated. Consider the two graphs below which depict force generated by two different muscles as additional motor units are recruited. Force Muscle A Load Force Muscle B Load a) Describe why the first steps for a low force contraction in both muscles are smaller than the later ones in the context of motor units and force production.arrow_forwardA) Describe the difference between strength and power during a squat. Provide a quantitative example that illustrates the difference. B) During a squat, the weight you have on your shoulders has a certain amount of gravitational potential energy. As you squat down and come to a stop at the bottom of the squat, some of that energy is lost. Where does it go?arrow_forwardWith the shoulder flexed at 30°, the moment arm of the deltoid muscle is 2.0 cm. Solve for the force exerted by the deltoid muscle at the glenohumeral joint give the following assumptions: The deltoid is the only active muscle at the glenohumeral joint The weight of the humerus is 48 N. The center of gravity of the humerus is located 30 cm from the shoulder center of rotation STATIC EQUILIBRIUM EQUATIONS CONSIDERING ONLY THE DELTOID MUSCLE Fo MA = 18 Cn COR B=55". 0-30° RaF 30 cm FG = 24 Narrow_forward
- What are the agonist and antagonist muscles for the shoulder joint during the front dumbell raise exercise?arrow_forwardDuring a maximal attempt, one may experience a burning sensation within the muscles being assessed. This burning sensation has falsely been attributed to lactate. What peripheral fatigue factors may be the real culprits of this burning sensation?arrow_forwardGIVE 3 EXERCISE THAT CAN BE CONSIDERED AS A LOCOMOTOR MOVEMENT WITH FLEXION AND EXTENSION MOVEMENT (mixed, not separated)I NEED IT ASAParrow_forward
- GIVE 3 EXERCISE THAT CAN BE CONSIDERED AS A LOCOMOTOR MOVEMENT WITH FLEXION AND EXTENSION MOVEMENT AND WHYarrow_forwardIn the EMG experiment. the measured force came from the contraction of which muscles? Check all that apply. Check All That Apply flexor digitorum superficialis flexor pollicis longus flexor carpi ulnaris flexor carpi radialis palmaris longusarrow_forwardIf the muscle fiber is stretched to 150% of muscle length and thentechnically stimulated, what would be the total force measured?arrow_forward
- Differentiate isotonic, isometric, and isokinetic exercisesarrow_forwardKnowing force output is constant from push-up to push-up, how does fatigue impact motor unit recruitment?arrow_forward2. a) Label the system provided below, including the reference frame, moment arms and vector forces with the information provided. Internal moment arm = 4cm +0.04m External moment arm relative to the segment weight = 25cm 0.25m External moment arm relative to the load weight = 45cm 40.45m Segment weight = 50 N Load weight = 100 N Lower leg segment angle relative to horizontal plane = 45° Quadriceps tendon angle = 45° Axis of rotation MF SW LW 2b) Using the figure in 2a., calculate the external torque of the system relative to the normal component of segment and load weights listed above. 2c) Calculate the amount of both the tangential component of the muscle force and the muscle force itself required to keep this system in a state of static equilibrium.arrow_forward
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