Comparison of two methods for the measurement of the extensor muscle dynamic force of the inferior limb: Isokinetic dynamometry and vertical jump tests

Riera, Joan; Drobnic, Franchek; Galilea, Pedro A.; Pons, Victoria

doi:10.1080/15438629409512010

Cited by 4 publications

(3 citation statements)

References 14 publications

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“…Strong significant relations were found between peak power in VJ or jump height and isokinetic torque at 60°·s −1 . The correlation coefficients observed here, between 0.72 and 0.79, were similar to that previously reported in athletes ( r = 0.77) (38), untrained adults ( r = 0.70) (36), or older adults ( r = 0.78) (21). A significant, although lower, relation was also found between peak power in VJ or jump height and isometric torque.…”

Section: Discussionsupporting

confidence: 90%

Vertical Jump on a Force Plate for Assessing Muscle Strength and Power in Women With Severe Obesity: Reliability, Validity, and Relations With Body Composition

Bellicha¹,

Giroux²,

Ciangura³

et al. 2020

Journal of Strength and Conditioning Research

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Vertical jump on a force plate for assessing muscle strength and power in women with severe obesity: reliability, validity, and relations with body composition. J Strength Cond Res 36(1): 75-81, 2022-Muscle strength and power, particularly when assessed during multijoint movements such as vertical jump (VJ), are important predictors of health status and physical function. Vertical jump is mainly used in athletes, also in untrained or older adults, but has not yet been used in subjects with obesity. We aimed to assess the following in this population: (a) the reliability of VJ parameters, (b) their validity compared with isokinetic testing, and (c) their relations with body composition. In 20 women with severe obesity (mean [SD] age: 41.1 [11.6] years; body mass index: 43.9 [4.4] kg•m 22 ) without severe orthopedic disorders, VJ parameters, knee extension torque, and body composition were assessed using a force plate, an isokinetic dynamometer, and dual-energy x-ray absorptiometry, respectively. Excellent reliability was found for absolute peak power and peak force in VJ (intraclass correlation coefficient [95% confidence interval]: 0.95 [0.88-0.98] and 0.90 [0.77-0.96], respectively), and moderate to good validity of peak power and peak force compared with isokinetic torque (r 5 0.79 and r 5 0.67, respectively; all p , 0.01). Positive relations were found between peak force and peak power during VJ and lean body mass (r 5 0.89 and r 5 0.60, respectively; p , 0.01) and a negative relation was found between peak velocity or VJ height and fat mass (r 5 20.65 and 20.64, respectively; p , 0.01). These results suggest that VJ on a force plate is a reliable and valid test for assessing muscle strength and power in severely obese subjects. Vertical jump testing is easy to implement, which can facilitate its use in both research and clinical testing in this setting (ClinicalTrials.govID: NCT03325764).

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Section: Discussionsupporting

confidence: 90%

Vertical Jump on a Force Plate for Assessing Muscle Strength and Power in Women With Severe Obesity: Reliability, Validity, and Relations With Body Composition

Bellicha¹,

Giroux²,

Ciangura³

et al. 2020

Journal of Strength and Conditioning Research

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“…A significantly greater height in jumping exercises with preliminary countermovement (CMJ or DJ) compared with SJ in adult subjects (2,24) has been reported. Several mechanisms have been proposed to explain the positive effect of a counter-movement on performance in the subsequent concentric action: (a) It allows for storage of elastic energy that can subsequently be re-utilized (2,6); (b) it triggers spinal stretch reflexes as well as longer-latency responses (19) that help to increase muscle stimulation during the concentric phase; and (c) it allows for greater joint movements at the start of push-off and more work production (5).…”

Section: Sj Cmj Djmentioning

confidence: 97%

Knee Extensor Muscle Strength and Vertical Jumping Performance Characteristics in Pre- and Post-Pubertal Boys

Ereline¹,

Gapeyeva²

2001

Pediatric Exercise Science

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Knee extensor muscle strength and vertical jumping performance characteristics were compared between 14 pre-pubertal (11-year-old) and post-pubertal (16-year-old) boys. Post-pubertal boys had greater (p < .05) absolute values of maximal isometric force (MF) and rate of force development (RFD), absolute and body mass-related values of isokinetic peak torque of the knee extensor muscles at angular velocities of 60, 180, and 240° · s−1, as well as jumping height in squat, counter-movement, and drop jumps, than pre-pubertal boys. This study indicated an inability to use the positive effect of stretch-shortening cycle to vertical jumping performance in pre- and post-pubertal boys.

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“…Likewise, Lephart 23 reported low correlations (R = .32 to .42) between OKC isokinetically tested quadriceps and hamstring muscle strength and the shuttle run, a cocontraction semicircular maneuver, and a carioca maneuver using anterior-cruciate-ligament-insufficient athletes. In contrast, other authors 18,30,31 reported higher correlation (R = .78 to .85) between OKC isokinetic strength of the knee extensors and functional performance in uninjured college students and skiing and high-jump athletes. These authors used moderate to high speeds (120°/s to 240°/s) to isokinetically measure muscle strength, which could explain the higher correlation coefficients they found.…”

Section: Discussionmentioning

confidence: 65%

Relationship between Closed-Linear-Kinetic-and Open-Kinetic-Chain Isokinetic Strength and Lower Extremity Functional Performance

Kovaleski¹,

Heitman²,

Andrew³

et al. 2001

Journal of Sport Rehabilitation

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Context: Isokinetic strength and functional performance are used to assess recovery after rehabilitation. It is not known whether low-speed closed-linear-kinetic isokinetic muscle strength correlates with functional performance. Objective: To investigate the relationship between linear closed (CKC) and open (OKC) concentric isokinetic strength of the dominant lower-limb extensors and functional performance. Design: Correlational analysis. Setting: University laboratory. Participants: Thirty uninjured men and women (age = 20.9 ± 2.4 years). Main Outcome Measures: Peak CKC and OKC isokinetic strength and best score from a shuttle run for time, single-leg vertical jump, and single-leg hop for distance. Results: Neither lower-limb CKC nor OKC isokinetic strength measured at low speeds correlated highly with performance on the functional tasks of jumping, hopping, and speed/agility. Conclusions: Although the basis of both closed and open isokinetic strength must be appreciated, they should not be the only determinants of functional performance. Kovaleski JE, Heitman RJ, Andrew DPS, Gurchiek LR, Pearsall AW IV. Relationship between closed-linear-kinetic-and open-kinetic-chain isokinetic strength and lower extremity functional performance. J Sport Rehabil. 2001;10:196-204.

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Comparison of two methods for the measurement of the extensor muscle dynamic force of the inferior limb: Isokinetic dynamometry and vertical jump tests

Cited by 4 publications

References 14 publications

Vertical Jump on a Force Plate for Assessing Muscle Strength and Power in Women With Severe Obesity: Reliability, Validity, and Relations With Body Composition

Vertical Jump on a Force Plate for Assessing Muscle Strength and Power in Women With Severe Obesity: Reliability, Validity, and Relations With Body Composition

Knee Extensor Muscle Strength and Vertical Jumping Performance Characteristics in Pre- and Post-Pubertal Boys

Relationship between Closed-Linear-Kinetic-and Open-Kinetic-Chain Isokinetic Strength and Lower Extremity Functional Performance

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