Early and late rapid torque characteristics and select physiological correlates in middle-aged and older males

Olmos, Alex A.; Stratton, Matthew T.; Ha, Phuong Hoai; Dalton, Benjamin E.; VanDusseldorp, Trisha A.; Mangine, Gerald T.; Feito, Yuri; Poisal, Micah J.; Jones, Joshua; Smith, Tyler M; Hester, Garrett M.

doi:10.1371/journal.pone.0231907

Cited by 12 publications

(24 citation statements)

References 45 publications

(102 reference statements)

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“…The 51 included studies included 5095 (∼2759 females, ∼2301 males) participants, aged 72.5±5.8 years of age. 7,11,12,14–24,26–62 Twenty-seven studies included males and females, 14,17,20,23,24,26,28–30,32,33,36–38,40,42,45–47,49,54,57–62 while 16 included only males, 7,11,15,16,18,19,21,22,31,34,39,41,48,50,52,56 seven included only females, 27,35,43,44,51,53,55 a single study did not report sex, 12 while another did not delineate sex when reporting age or participant numbers; 61 explaining the approximate values in the previous sentence. Two studies included participants with ‘metabolic syndrome’ or diabetes, 20,33 and single studies included participants with chronic obstructive pulmonary disease, 42 USA Veterans, 11 ‘frail’, 24 outpatients, 63 nursing home residents, 23 or regularly participated in competitive tennis.…”

Section: Resultsmentioning

confidence: 99%

“…31 Non-corrected echogenicity was used in 49 studies, 7,11,12,14–20,22–24,26–49,51–62 while subcutaneous fat-correction was reported or obtained in 12 studies. 15,16,18,19,21,30,40,48,50,51,54,59 Both non-corrected and corrected values and/or correlations were found or obtained from 10 studies. 15,16,18,19,30,40,48,51,54,59…”

Section: Resultsmentioning

confidence: 99%

“…45 Ten studies included at least one measure of rapid force/torque/velocity production. 16,19,21,34,39,[52][53][54]56,62…”

Section: Quadricepsmentioning

confidence: 99%

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Exploring the associations between skeletal muscle echogenicity and physical function in aging adults: A systematic review with meta-analyses

Oranchuk,

Bodkin,

Boncella

et al. 2023

Preprint

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BackgroundAssessment and quantification of skeletal muscle within the aging population is vital for diagnosis, treatment, and injury/disease prevention. The clinical availability of assessing muscle quality through diagnostic ultrasound presents an opportunity to be utilized as a screening tool for function-limiting diseases. However, relationships between muscle echogenicity and clinical functional assessments require authoritative analysis. Thus, we aimed to 1) synthesize the literature to assess the relationships between skeletal muscle echogenicity and physical function in older (≥60 years) adults, 2) perform pooled analyses of relationships between skeletal muscle echogenicity and physical function, and 3) perform sub-analyses to determine between-muscle relationships.MethodsCINAHL, Embase, MEDLINE, PubMed, and Web of Science databases were systematically searched to identify articles relating skeletal muscle echogenicity to physical function in older adults. Meta-analyses with and without sub-analysis for individual muscles were performed utilizing Fisher’s Z transformation for the most common measures of physical function. Fisher’s Z was back-transformed to Pearson’srfor interpretation.ResultsFifty-one articles (N=5095, female=∼2759, male=∼2301, 72.5±5.8 years [one study did not provide sex descriptors]) were extracted for review, with previously unpublished data obtained from the authors of 12 studies. The rectus femoris (n=32) and isometric knee extension strength (n=22) were the most accessed muscle and physical qualities, respectively. The relationship between quadriceps echogenicity and knee extensor strength was moderate (n=2924,r=-0.36 [95%CI: −0.38 to −0.32],p<0.001), with all other meta-analyses (grip strength, walking speed, sit- to-stand, timed up-and-go) resulting in slightly weaker correlations (r=−0.34 to −0.23, allp<0.001). Sub-analyses determined minimal differences in predictive ability between muscle groups, although combining muscles (e.g., rectus femoris+vastus lateralis) often resulted in stronger correlations with maximal strength.ConclusionsWhile correlations were modest, the affordable, portable, and noninvasive ultrasonic assessment of muscle quality was a consistent predictor of physical function in older adults. Minimal between-muscle differences suggest that echogenicity estimates of muscle quality are systemic. Therefore, practitioners may be able to scan a single muscle to assess full-body skeletal muscle quality/composition, while researchers should consider combining multiple muscles to strengthen the model.RegistrationThe original protocol was prospectively registered at the National Institute of Health Research PROSPERO (CRD42020201841).HighlightsRelationships between skeletal muscle echogenicity and physical function were small to moderate, but highly consistent.Sub-analyses determined minimal between-muscle differences in predictive ability.Ultrasonic echogenicity should be considered part of early detection screens for sarcopenia and other diseases.Combining muscles tended to strengthen the model, although muscle quality appears systemic, allowing for a single scan to represent the total body.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Exploring the associations between skeletal muscle echogenicity and physical function in aging adults: A systematic review with meta-analyses

Oranchuk,

Bodkin,

Boncella

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…The SEM ranged from 3.85% to 6.80%, and the SRD from 10.66% to 18.86% for peak torque, finding that an SRD < 20% was indicative of a true change after the intervention [ 33 ]. Chronic obstructive pulmonary disease patients were also studied [ 34 , 35 , 36 , 37 ]. These patients performed 30 maximal knee extensions at angular velocities of 90 and 180°/s in random order, showing that the reliability at 90°/s was excellent at 0.97 (0.92–0.99) and an SEM percentage of 12 for peak torque, with this being the most reliable option.…”

Section: Discussionmentioning

confidence: 99%

Test-Retest Reliability of Isokinetic Strength Measurements in Lower Limbs in Elderly

Parraça

Adsuar

Domínguez‐Muñoz

et al. 2022

Biology

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Strength is essential for carrying out the usual activities of daily life. As there is a loss of strength in elderly, many treatments are based on delaying the loss of strength or maintaining it. Isokinetic dynamometry is the gold standard for assessing strength. It is essential that studies are conducted to allow us to identify the reliability of isokinetic strength assessments in older people. This study aimed to test the absolute and relative intra-session reliability of peak torque and work of a concentric knee extension-flexion performed at 60°/s in elderly. Fifty-two elderly subjects performed three repetitions of bilateral concentric knee extension-flexion at 60°/s using an isokinetic dynamometer. The relative and absolute reliability were calculated between the second and third repetition. The intra-class correlation coefficient values were between 0.94 and 0.98 for peak torque and work in all measures, which is considered “excellent”, except for left leg flexors in women, with values between 0.85 and 0.88, which is considered “good”. The standard error of measurement (SEM) percentage oscillated from 3.9% to 10.5%, with a smallest real difference (SRD) percentage of 10.9% to 29.2% for peak torque. The relative reliability of peak torque and work were excellent for all measures except flexors in women, evidencing the utility of isokinetic dynamometry for monitoring lower limb maximal muscle strength and work of concentric knee extension-flexion at 60°/s/s in the elderly. In addition, an SRD > 19.9% in peak torque and an SRD > 23.1% in work is considered a true change.

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“…This may have also been partially responsible for the observed decrements in RTD200 from PRE to POST during WEAK and CONTROL, but not during STRONG. Late rapid torque characteristics have been observed to be impaired in older adults more so than early rapid torque characteristics (Gerstner et al 2017 ; Klass et al 2008 ; Olmos et al 2020 ). This is thought to be partially due to an inability to sustain muscle activation during late rapid torque development (Klass et al 2008 ), as well as maximal strength capability (Andersen and Aagaard 2006 ).…”

Section: Discussionmentioning

confidence: 99%

The acute effects of action observation on muscle strength/weakness and corticospinal excitability in older adults

et al. 2022

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Muscle weakness is a critical problem facing many older adults. Interventions targeting nervous system plasticity may show promise in enhancing strength. The purpose of this study was to examine the acute effects of action observation on muscular strength characteristics and corticospinal excitability in older adults. Isometric wrist flexion strength characteristics and corticospinal excitability of the first dorsal interosseous (FDI) were measured in 14 older adults (mean age = 73 years) in response to observation of (1) STRONG contractions of the hand/wrist, (2) WEAK contractions of the hand/wrist, and (3) a CONTROL condition. Results from repeated measures analyses of variance (ANOVAs) indicated that rate of torque development at 200 ms (RTD200) significantly decreased from PRE to POST observation for CONTROL and WEAK, but not STRONG. No other ANOVAs were significant. However, effect sizes indicated that maximal voluntary contraction (MVC) peak torque showed moderate declines following WEAK ( d = − 0.571) and CONTROL ( d = − 0.636), but not STRONG ( d = 0.024). Similarly, rate of torque development at 30 (RTD30), 50 (RTD50), and 200 (RTD200) ms showed large declines from PRE to POST after WEAK and CONTROL, but small changes following STRONG. FDI motor-evoked potential (MEP) amplitude tended to increase over time, but these results were variable. There was a pronounced effect from PRE to 8MIN ( d = 0.954) during all conditions. Action observation of strong contractions may exert a preservatory effect on muscular strength. More work is needed to determine whether this is modulated by increased corticospinal excitability. The study was prospectively registered (ClinicalTrials.gov Identifier: NCT03946709).

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Early and late rapid torque characteristics and select physiological correlates in middle-aged and older males

Cited by 12 publications

References 45 publications

Exploring the associations between skeletal muscle echogenicity and physical function in aging adults: A systematic review with meta-analyses

Exploring the associations between skeletal muscle echogenicity and physical function in aging adults: A systematic review with meta-analyses

Test-Retest Reliability of Isokinetic Strength Measurements in Lower Limbs in Elderly

The acute effects of action observation on muscle strength/weakness and corticospinal excitability in older adults

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