Maximum Power During Vertical Jump and Isometric Knee Extension Torque Alter Mobility Performance: A Cross‐Sectional Study of Healthy Individuals

Tsubaki, Atsuhiro; Kubo, Masayoshi; Kobayashi, Ryosaku; Jigami, Hirofumi; Sugawara, Kazuhiro; Takahashi, Hideaki

doi:10.1016/j.pmrj.2015.04.012

Cited by 10 publications

(12 citation statements)

References 82 publications

(97 reference statements)

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“…In addition, no differences in jump performances using only the ankle joint were noted between the two groups, whereas the age-related decline in power output during the vertical jump (multi-joint exercises) was already observed in middle-aged men (e.g. 6 ). In the future, therefore, we need to determine the mechanical properties of muscles and tendon structures in knee extensors of middle-aged people.…”

Section: Discussionmentioning

confidence: 77%

“…As described in “ I ntroduction”, previous studies showed that the age-related decline of power output has already begun from middle age 3 – 6 . However, the present results on jump performances using only ankle joint were different from previous findings.…”

Section: Discussionmentioning

confidence: 94%

“…It is known that age-associated decline of power is greater than that of muscle strength 1 , 2 , and the decline in power with aging has already begun by middle age, i.e., around forties 3 – 6 . Tsubaki et al 6 demonstrated in a cross-sectional study that the difference in power during a vertical jump between those in their 20 s and 40 s was greater than that in knee extension isometric strength. According to the findings of a longitudinal study 5 , the rate of decline in power with aging was also greater than that of isometric strength.…”

Section: Introductionmentioning

confidence: 99%

“…The vertical jump tests used in the previous studies as cited earlier 3 – 6 consisted of multi-joint movements, so is difficult to specify the muscles acting during tests. Therefore, we need to adopt the test to minimize the contribution of other joints and muscles in order to precisely evaluate the role of muscle and tendon properties.…”

Section: Introductionmentioning

confidence: 99%

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Mechanical properties of muscles and tendon structures in middle-aged and young men

Kubo

Ikebukuro

Yata

2022

Sci Rep

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The purpose of this study was to compare the mechanical properties of muscles and tendon structures for plantar flexor muscles at various strain rates and jump performances using single joint between middle-aged and young men in order to clarify the mechanisms of age-related decline in power output during vertical jump of middle-aged people previously reported. Passive muscle stiffness of the medial gastrocnemius muscle was determined based on passive muscle force and fascicle length during passive stretching at four angular velocities. Active muscle stiffness was calculated based on changes in muscle force and fascicle length during stretching at five angular velocities after submaximal isometric contractions. Maximal elongation and hysteresis of tendon structures were assessed from estimated muscle force—tendon elongation during ramp and ballistic contractions. Two kinds of unilateral jump heights using only ankle joint (no-countermovement and countermovement jumps) were measured. No significant differences in passive and active muscle stiffness, tendon structure properties (except for maximal elongation during ramp contraction), or jump heights were found between middle-aged and young men. The results suggest that the mechanical properties of muscles and tendon structures for plantar flexor muscles and jump performances using only ankle joint do not show age-related changes in middle-aged men.

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Section: Discussionmentioning

confidence: 77%

Section: Discussionmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Mechanical properties of muscles and tendon structures in middle-aged and young men

Kubo

Ikebukuro

Yata

2022

Sci Rep

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“…Muscle mechanography provides in-depth knowledge of the individual contributions of force and velocity to muscle power so interventions can be tailored to optimize the most influential component. Muscle mechanography can also be used to evaluate the potential of nursing therapeutic interventions in older adults (Caserotti et al, 2001;Dietzel et al, 2015;Rantalainen et al, 2010;Runge et al, 2004;Singh et al, 2014;Tsubaki et al, 2016).…”

Section: Implementing Muscle Mechanography In Nursing Researchmentioning

confidence: 99%

Muscle Mechanography: A Novel Method to Measure Muscle Function in Older Adults

Taani¹,

Kovach²,

Buehring³

2017

Research in Gerontological Nursing

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Muscle function decline is a commonly observed process that occurs with aging. Low muscle function, an essential component of sarcopenia, is associated with negative outcomes, including falls, fractures, and dependency. Although many tools have been developed and are used to assess muscle function in older adults, most have important limitations. Muscle mechanography is a novel method that can quantitatively assess muscle function by performing movements such as heel raises, chair rises, or jumps on a ground reaction force plate. It can also assess balance by measuring sway of the center of pressure. Muscle mechanography promises to have advantages over currently used tools, appears to have better reproducibility, and can assess a broader range of physical function—from master athletes to frail individuals. Older adults can safely perform muscle mechanography measurements. Further research is needed to determine whether muscle mechanography can predict outcomes such as falls, fractures, and mortality. [Res Gerontol Nurs. 2017; 10(1):17–24.]

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Reference value for the TUGT in healthy older people: A systematic review and meta-analysis

et al. 2020

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Maximum Power During Vertical Jump and Isometric Knee Extension Torque Alter Mobility Performance: A Cross‐Sectional Study of Healthy Individuals

Abstract: The study findings suggest that muscle power affects MP more than the muscle strength in persons aged ≥20 years.

Cited by 10 publications

References 82 publications

Mechanical properties of muscles and tendon structures in middle-aged and young men

Mechanical properties of muscles and tendon structures in middle-aged and young men

Muscle Mechanography: A Novel Method to Measure Muscle Function in Older Adults

Reference value for the TUGT in healthy older people: A systematic review and meta-analysis

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