Jump Power Predicts Fracture Risk in Older Adults Independent of Sarcopenia and <scp>FRAX</scp>

Hong, Namki; Burm, Seung Won; Kim, Hyeon Chang; Kim, Chang Oh; Rhee, Yumie

doi:10.1002/jbmr.4825

Cited by 2 publications

(4 citation statements)

References 43 publications

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“…In the studies of older adults in humans, impairment of countermovement jump power was observed at earlier time points compared to other measures of physical performance such as timed get-up-and-go test, chair rise test, or muscle force measures such as handgrip strength 12 , 22 , 23 . Jump power assessment improved fracture risk prediction when added to conventional measures of physical performance and muscle strength by detecting individuals who have impaired physical performance at an earlier stage 24 . These findings, which indicate the value of jump power measurement as a sensitive biomarker of age-related changes in physical performance, can be translated as the potential advantage of countermovement jump power assessment in rodent models of aging and sarcopenia.…”

Section: Discussionmentioning

confidence: 99%

Preclinical assessment of rodent jumping power with a novel electrical stimulation-assisted device

Kim,

Lee,

Kim

et al. 2023

Sci Rep

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Sarcopenia is a progressive loss of muscle mass and strength that is associated with increasing the risk of falls, musculoskeletal diseases, and chronic metabolic diseases. However, the animal models adopted to study sarcopenia face limitations since the functional tests conducted on human cannot be directly adapted to animals because the animals do not follow instructions. Moreover, current preclinical research tools for muscle function assessment, such as the rotarod, grip strength, and treadmill, have limitations, including low-intensity simple movements, evaluator subjectivity, and limited power indicators. Hence, in this study, we present a new jumping-power assessment tool in a preclinical rodent model to demonstrate muscle functions. To overcome the light weight and command issues in the rodent model, we developed an electrical stimulation-assisted jump power assessment device. Precisely, the device utilizes a load cell with a 0.1 g resolution and a 50 points/s data acquisition rate to capture the short period of the mouse jump. Additionally, interdigitated electrodes are used to electrically stimulate the mice and make them jump. While our primary focus in this article is the validation of the newly developed jump power assessment device, it is worth noting that this tool has several potential utilities. These include the phenotypic comparison of sarcopenia models, the exploration of muscle function reduction mechanisms, muscle function-related blood biomarkers, and the evaluation of drug intervention effects.

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Section: Discussionmentioning

confidence: 99%

Preclinical assessment of rodent jumping power with a novel electrical stimulation-assisted device

Kim,

Lee,

Kim

et al. 2023

Sci Rep

Self Cite

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“…Before testing, participants maintained an upright standing position, with feet parallel to each other at shoulder width and hands placed on the hips. On the signal “Go!”, participants flexed their knees at approximately 90° and jumped as high as possible [ 11 , 12 , 13 , 14 ]. No specific recommendations were provided to indicate hip position during the CMJ, given that this approach is not commonly used in the literature [ 11 , 12 , 13 , 14 ] and that older adults might require different hip adequations to stand up [ 24 ] according to their physical limitations.…”

Section: Methodsmentioning

confidence: 99%

“…On the signal "Go! ", participants flexed their knees at approximately 90 • and jumped as high as possible [11][12][13][14]. No specific recommendations were provided to indicate hip position during the CMJ, given that this approach is not commonly used in the literature [11][12][13][14] and that older adults might require different hip adequations to stand up [24] according to their physical limitations.…”

Section: Countermovement Jumpmentioning

confidence: 99%

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Agreement and Associations between Countermovement Jump, 5-Time Sit-To-Stand, Lower-Limb Muscle Power Equations, and Physical Performance Tests in Community-Dwelling Older Adults

Coelho-Júnior,

da Silva Aguiar,

de Oliveira Gonçalves

et al. 2024

JCM

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Objectives: The present study examined the agreement and associations of the 5-time sit-to-stand (5STS) test, the countermovement jump test, and lower-limb muscle power equations with a set of physical performance tests in older adults. Methods: Five hundred and thirty-four community-dwelling older adults were recruited for the study. Lower-limb muscle power measures included 5STS, the countermovement jump test, and muscle power equations. Isometric handgrip strength, timed “up-and-go!”, the 6 min walking test, one-leg stand, and walking speed at usual and fast paces were used to assess physical performance. Pearson’s correlations and Bland–Altman analyses were conducted to examine associations among muscle power measures. Linear and multiple regressions were run to explore associations of 5STS, the countermovement jump test, and muscle power equations with physical performance tests. Results: Weak correlations were observed among lower-limb muscle power measures. Bland–Altman results indicated important differences among the countermovement jump test, 5STS, and muscle power equations. Results of multiple linear regressions indicated that 5STS, the countermovement jump test, and muscle power equations were significantly associated with measures of muscle strength and mobility. However, only 5STS was significantly associated with balance. Conclusions: Our results indicate that the performance on the countermovement jump test and 5STS is weakly correlated with lower-limb muscle power equations. The only exception was the correlation found between the countermovement jump test and relative muscle power, highlighting the importance of accounting for body mass in muscle power evaluations. Muscle power measures were similarly associated with performance on handgrip strength, timed “up-and-go!”, and the 6 min walking test. The exclusive association of 5STS with balance suggests that a reassessment of 5STS muscle power equations may be warranted.

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Jump Power Predicts Fracture Risk in Older Adults Independent of Sarcopenia and FRAX

Cited by 2 publications

References 43 publications

Preclinical assessment of rodent jumping power with a novel electrical stimulation-assisted device

Preclinical assessment of rodent jumping power with a novel electrical stimulation-assisted device

Agreement and Associations between Countermovement Jump, 5-Time Sit-To-Stand, Lower-Limb Muscle Power Equations, and Physical Performance Tests in Community-Dwelling Older Adults

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