| Course | HLTH 4340 Fit and Well: Core Concepts in Exercise Science |
|---|---|
| Week | Week 5 |
| Paper type | Capacity comparison paper |
| Length | About 1,100 words, 6 pages |
| Format | APA 7 student paper |
| School | Walden University |
| Program | BS in Public Health |
| Updated | October 2026 |
Free sample paper for HLTH 4340 Week 5
Muscular Strength and Muscular Power Compared on Four Criteria: Physical Definition, Unit, Matching Test and the Documented Relationship Between Them
Student Name
Walden University
HLTH 4340: Fit and Well: Core Concepts in Exercise Science
Instructor Name
Month Day, Year
Muscular Strength and Muscular Power Compared on Four Criteria: Physical Definition, Unit, Matching Test and the Documented Relationship Between Them
Basis of the Comparison
Strength and power get swapped for each other constantly in everyday talk. A coach says a sprinter is "strong" off the blocks, and a fitness app labels a jump test a "strength" score. In exercise science the two are separate capacities with separate definitions, units and tests, and the relationship between them is a question to be answered from evidence rather than assumed. This paper compares them on four criteria, applied in the same order to each: the physical definition, the unit, the test that estimates the capacity and what is documented about how the two relate. It ends with what the comparison establishes for assessment. It does not recommend a training emphasis for anyone.
Criterion 1: Physical Definition
Muscular strength is the peak force that one muscle, or a group of muscles working together, can exert in a specified movement. It is a quantity of force, and it does not depend on how quickly the force is produced. The ACSM position stand on exercise prescription treats strength as one of the capacities resistance training is meant to develop, distinct from muscular endurance and from power (Garber et al., 2011).
Muscular power is the rate of doing work. Because work is force multiplied by distance, power can be written as force multiplied by velocity. A person can therefore produce high power by producing moderate force at high speed, or high force at moderate speed. Cormie et al. (2011) explain that maximal power is defined and limited by the force-velocity relationship: a muscle cannot produce its greatest force and its greatest shortening velocity at the same time, so maximal power occurs at intermediate loads and speeds.
Neither definition uses the other's vocabulary. Strength says nothing about time; power is defined by time.
Criterion 2: Unit
Strength is expressed as force, in newtons, or, in field testing, as the mass lifted, in kilograms or pounds. Power is expressed in watts, one joule of work per second. A score in kilograms cannot be a power score, and a score in watts cannot be a strength score. Jump height, reported in centimeters, is a third kind of number. It is not itself a power value; it reflects the velocity at takeoff, which depends on the impulse the person applied, and power must be calculated from force and velocity data if it is wanted.
Criterion 3: The Matching Test
The standard dynamic field test of strength is the one-repetition maximum (1RM), the heaviest load lifted once through a full range of a specified exercise, such as the back squat or half squat. The lift is slow by necessity, because a near-maximal load cannot be moved quickly. Strength can also be tested isometrically, for example as peak force against an immovable bar, which removes speed entirely.
Power is commonly estimated with jump tests, such as the countermovement jump, often on a force plate that records force through the takeoff so that power can be computed. The movement is fast by design.
A slow maximal lift cannot report the same property as a jump. The 1RM tells us the greatest load a person can move, not how fast they can move a lighter one; the jump tells us about force produced quickly, not the greatest force available. Testing one capacity with the other's test is the error the matching criterion exists to prevent. Suchomel et al. (2016) describe isometric, dynamic and reactive strength tests as tools for monitoring an athlete's strength characteristics, each answering a narrower question than "how strong."
Criterion 4: The Documented Relationship
The two capacities are distinct, but they are related. Because power is force times velocity, the greatest force a person can produce sets a ceiling on the force available at any speed. Suchomel et al. (2016) reviewed the literature and concluded that greater muscular strength is strongly associated with better force-time characteristics and with performance in jumping, sprinting and change-of-direction tasks. They also noted that stronger athletes potentiate earlier and to a greater extent.
A study of elite players illustrates the association. Wisløff et al. (2004) tested 17 international male soccer players for maximal half-squat strength, sprint times over 0 to 30 meters and on a shuttle sprint, and vertical jump height. They reported a strong correlation between half-squat strength and both sprint performance and jump height. The design was cross-sectional and the sample small, so it shows that the two capacities moved together in that group, not that strength caused the jumping.
The relationship is not one to one. Cormie et al. (2011) list a range of factors besides maximal force that influence power: the time available to develop force, the storage and use of elastic energy in tendons, fiber type, muscle architecture and neural factors such as motor unit recruitment and firing frequency. Two people with the same 1RM can therefore differ in jump performance, and a person whose strength improves may not see an equal gain in power if speed of force production does not change. Suchomel et al. (2016) describe stages of relative strength, from a "strength deficit" stage, in which more strength is likely to raise performance, to a "strength reserve" stage, in which further gains in strength may add less.
Summary Table
Table 1
Strength and Power on the Four Criteria
| Criterion | Muscular strength | Muscular power | |
|---|---|---|
| Physical definition | Greatest force a muscle group can produce | Rate of doing work, force times velocity | |
| Unit | Newtons, or kilograms lifted in field tests | Watts | |
| Matching test | 1RM or isometric peak force | Jump on a force plate, with power computed | |
| Relationship | Sets a ceiling on force at any speed | Depends on strength and on rate of force development, elastic and neural factors | |
Sources: Cormie et al. (2011); Suchomel et al. (2016); Wisløff et al. (2004).
What the Comparison Establishes for Assessment
For anyone assessing fitness, the comparison has three practical consequences. First, a strength score and a power score should be reported separately, each in its own unit, and neither should be renamed as the other. Second, the choice of test should follow the question: a 1RM answers how much force is available, and a jump test answers how quickly force can be applied. Third, because the two are strongly related but not interchangeable, a change in one cannot be assumed from a change in the other; each needs its own test. The comparison describes the capacities and how they are measured. It does not say which a given person should train.
References
Cormie, P., McGuigan, M. R., & Newton, R. U. (2011). Developing maximal neuromuscular power: Part 1. Biological basis of maximal power production. Sports Medicine, 41(1), 17-38. https://doi.org/10.2165/11537690-000000000-00000
Garber, C. E., Blissmer, B., Deschenes, M. R., Franklin, B. A., Lamonte, M. J., Lee, I.-M., Nieman, D. C., & Swain, D. P. (2011). Quantity and quality of exercise for developing and maintaining cardiorespiratory, musculoskeletal, and neuromotor fitness in apparently healthy adults: Guidance for prescribing exercise. Medicine & Science in Sports & Exercise, 43(7), 1334-1359. https://doi.org/10.1249/MSS.0b013e318213fefb
Suchomel, T. J., Nimphius, S., & Stone, M. H. (2016). The importance of muscular strength in athletic performance. Sports Medicine, 46(10), 1419-1449. https://doi.org/10.1007/s40279-016-0486-0
Wisløff, U., Castagna, C., Helgerud, J., Jones, R., & Hoff, J. (2004). Strong correlation of maximal squat strength with sprint performance and vertical jump height in elite soccer players. British Journal of Sports Medicine, 38(3), 285-288. https://doi.org/10.1136/bjsm.2002.002071
HLTH 4340 Week 5 instructions, in plain terms
In Week 5 the prompt asks for a comparison of two related fitness capacities, and strength against power is a common pairing. Instructions stress that the comparison should run on explicit criteria announced at the start. Point-by-point organization, where each criterion is applied to both capacities before the next criterion begins, usually reads better than two separate blocks. The paper is expected to define each capacity in physical terms, to give its unit and to name the test that estimates it. Most versions also ask what the evidence says about how the two capacities relate, which calls for studies rather than coaching opinion. A summary table is welcome but does not replace the prose. The assignment is descriptive, so a recommendation about what anyone should train goes beyond it. APA style with a reference list of peer-reviewed sources is expected throughout the paper.
How the HLTH 4340 Week 5 example is put together
An opening section names the everyday confusion, a sprinter called strong and a jump labeled a strength score, and lists the four criteria. Criterion 1 defines strength as peak force regardless of speed and power as work per unit time, with the force-velocity relationship from Cormie et al. (2011) explaining why maximal power arrives at moderate loads. Criterion 2 gives newtons or kilograms against watts and notes that jump height in centimeters is a third kind of number. Criterion 3 pairs the slow one-repetition maximum or isometric peak force with a fast jump on a force plate. Criterion 4 reports Suchomel's strength-deficit and strength-reserve stages and the Wisløff soccer correlations, with the cross-sectional design and 17-player sample flagged. The table condenses the four rows. A final section draws three consequences: report each score in its own unit, pick the test by the question and test each capacity separately.
Where the marks sit in the HLTH 4340 Week 5 rubric
Rubric rows for this comparison generally weight the criteria themselves, then the evidence, organization and mechanics. A criterion stated once and then dropped for one capacity costs marks, because the grader is reading for parallel treatment. Definitions must be physically correct, and the common slip of defining power as "strength done fast" without the force-velocity relationship is scored as incomplete. The unit criterion is quick to mark and easy to lose; a power value in kilograms is wrong on sight. Evidence credit depends on stating what each study can and cannot show, so the paper notes that a correlation in one small group does not establish cause. Organization is assessed on whether criteria stay in the announced order. Mechanics include a table numbered and titled in APA style with sources under it. Comparisons that stop short of advice and end on assessment consequences match what the prompt asked for.
HLTH 4340 Week 5 help from the desk
Comparison papers on strength and power slide into two errors more than any other. One is the block layout, where a full page on strength is followed by a full page on power and the reader is left to do the comparing. The other is treating the two as one capacity, so a jump score gets called strength or a one-rep max gets called power. Further losses come from claiming that strength training causes better jumping on the basis of a correlation. Write the criteria into your introduction and use them as headings. Give every number its unit. When you cite a study, add its design and sample size in the same sentence. Be careful that your table and your prose say the same thing. If you want a paper comparing a different pair, such as muscular endurance against strength, a custom draft can keep these four criteria and swap in evidence that fits the new pair.
Get a HLTH 4340 Week 5 example written to your instructions
Pass along the prompt and the rubric, with any comparison template the classroom circulated, and a sample comparison arrives inside 24-48h. The first custom sample is free. Use it beside a draft, never in place of one, since graded writing stays an act performed by the person enrolled in the section.
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HLTH 4340 Week 5 questions, answered
Where can I find a free HLTH 4340 Week 5 sample paper?
This page prints a complete Week 5 comparison of muscular strength and muscular power on four criteria, with a summary table, four journal references and notes on how each section scores.
Is muscular power the same as strength?
No. Strength is the greatest force a muscle group produces, whatever the speed. Power is force multiplied by velocity, so it depends on how quickly force can be applied as well as how much.
Which tests match strength and power in the HLTH 4340 Week 5 example?
Strength is matched to the one-repetition maximum or isometric peak force, and power to a countermovement jump on a force plate with power calculated from force and velocity.
Does a stronger person always jump higher?
Strength and jumping are strongly associated, but other factors such as rate of force development, tendon elasticity and fiber type matter too, so two people with the same one-rep max can jump differently.
Should the comparison be organized point by point?
The example uses point by point, applying each criterion to both capacities in turn, which keeps the comparison visible and matches what most graders look for in this week.