Reproducibility of isokinetic knee testing using the novel isokinetic SMM iMoment dynamometer

Kambič, Tim; Lainščak, Mitja; Hadžić, Vedran

doi:10.1371/journal.pone.0237842

Cited by 18 publications

(14 citation statements)

References 29 publications

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“…Additionally, the measurement procedure is more complicated than that for measuring grip strength. Therefore, analysis using isokinetic equipment is rare in MetS studies [14,15].…”

Section: Introductionmentioning

confidence: 99%

Prevalence of Metabolic Syndrome According to Absolute and Relative Values of Muscle Strength in Middle-Aged and Elderly Women

Zhang

Zhao

Xue-bin

et al. 2021

IJERPH

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Metabolic syndrome (MetS) increases with age, obesity, low physical activity, and decreased muscle strength. Although many studies have reported on grip strength and MetS, few studies have been conducted on leg strength. The purpose of this study was to analyze the prevalence of MetS according to absolute and relative leg strength values in middle-aged and older women. The participants were 1053 women who visited the healthcare center: middle-aged (n = 453) and older (n = 601). MetS was diagnosed using the criteria established by the third report of the National Cholesterol Education Program Adult Treatment Panel III and the World Health Organization’s Asia Pacific guidelines for waist circumference. For leg strength, knee flexion and extension were performed using isokinetic equipment. Grip strength was measured using a grip dynamometer and classified into quartiles. Analysis of prevalence using logistic regression showed that MetS was present in 21.2% of middle-aged and 39.4% of older women. The lowest relative leg extension increased 2.5 times in the middle-aged and 1.5 times in older women (p < 0.05). However, leg flexion did not have a significant prevalence in either age group. The prevalence of MetS in middle-aged and older women with the lowest relative grip strength increased 1.5 and 1.2 times, respectively. Conversely, the lower the absolute leg extension strength, the lower the MetS prevalence was at 0.520 in middle-aged and 0.566 in older women (p < 0.05). In conclusion, the prevalence of MetS increased in women with low relative grip and leg strengths. Specifically, the lower the relative leg extension muscle strength, the higher the prevalence of MetS. In addition, the prevalence of MetS increased in the high-frequency alcohol consumption and non-physical activity group.

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“…Additionally, the measurement procedure is more complicated than that for measuring grip strength. Therefore, analysis using isokinetic equipment is rare in MetS studies [14,15].…”

Section: Introductionmentioning

confidence: 99%

Prevalence of Metabolic Syndrome According to Absolute and Relative Values of Muscle Strength in Middle-Aged and Elderly Women

Zhang

Zhao

Xue-bin

et al. 2021

IJERPH

View full text Add to dashboard Cite

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“…ICC values were interpreted according to recent guidelines [24]. Absolute and relative measurement error was assessed with a standard error of measurement (SEM) and with the SEM %, respectively, with the additional calculation of smallest real difference (SRD) and Bland-Altman analysis [25]. The coefficient of variation (CV) was calculated as a ratio between the standard deviation and the mean.…”

Section: Discussionmentioning

confidence: 99%

Predictive Validity of the Single Leg Hamstring Bridge Test in Military Settings

Pori

Kovčan²,

Vodičar

et al. 2021

Applied Sciences

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The hamstrings are an important biarticular muscle group that plays an important role in the occupational performance of military personnel. The single leg hamstring bridge test (SLHBT) could be a good test to screen military personnel performance. The aims of our study were to assess of the reproducibility of the SLHBT in the military population and to use receiver operating curve (ROC) analysis to examine the ability of the SLHBT to discriminate between soldiers with poor and good baseline fitness. A cross-sectional study was performed on 201 male members of the Slovenian Armed Forces (SAF). They undertook army physical fitness testing (APFT) and functional physical fitness testing (FPFT), which included the SLHBT. The SLHBT showed acceptable reproducibility in a military setting and had moderate predictive validity to discriminate between soldiers with poor and good overall physical fitness performance using a cut-off value of 20 repetitions. In conclusion, the SLHBT could be a good candidate test for the military population as the ROC analysis showed the ability of the SLHBT to discriminate between soldiers with poor and good baseline fitness. The SLHBT represents a simple and affordable test that can be used to evaluate performance and form preventive guidelines for military personnel.

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“…A reliable methodology is recommended for measuring MS in clinical trials, such as isokinetic testing, which is a gold standard for evaluating maximal strength [ 41 , 42 ] because of its reproducibility [ 43 ], validity [ 44 ] and reliability [ 45 ]. The higher the level of MS, the lower the risk of overall mortality in the population with acute or chronic diseases [ 46 ] or even in the healthy population [ 47 ].…”

Section: Discussionmentioning

confidence: 99%

Resistance Training Improves Muscle Strength and Function, Regardless of Protein Supplementation, in the Mid- to Long-Term Period after Gastric Bypass

et al. 2021

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Inadequate protein intake and low levels of physical activity are common long-term sequelae after bariatric surgery and can negatively affect muscle strength (MS) and physical function (PF). The study investigated the effects of resistance training with or without protein supplementation on MS and PF. The study, which involved a 12-week controlled trial (n = 61) of individuals 2–7 years post-Roux-en-Y gastric bypass (RYGB), comprised four groups: whey protein supplementation (PRO; n = 18), maltodextrin placebo (control [CON]; n = 17), resistance training combined with placebo (RTP; n = 11), and resistance training combined with whey protein supplementation (RTP+PRO; n = 15). An isokinetic dynamometer was used to measure MS (peak torque at 60°/s and 180°/s). PF was measured with the 30-s sit-to-stand (30-STS), 6-min walk (6-MWT), and timed up-and-go (TUG) tests. There were improvements in the absolute and relative-to-bodyweight peak torque at 60°/s and 180°/s, TUG, 6-MWT and 30-STS in the RTP and RTP+PRO groups, but not in the CON and PRO groups. Changes in MS were significantly correlated with changes in PF between the pre- and post-intervention periods. A supervised resistance training program, regardless of protein supplementation, improved MS and PF in the mid-to-long-term period after RYGB and can lead to clinical benefits and improved quality of life.

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Reproducibility of isokinetic knee testing using the novel isokinetic SMM iMoment dynamometer

Cited by 18 publications

References 29 publications

Prevalence of Metabolic Syndrome According to Absolute and Relative Values of Muscle Strength in Middle-Aged and Elderly Women

Prevalence of Metabolic Syndrome According to Absolute and Relative Values of Muscle Strength in Middle-Aged and Elderly Women

Predictive Validity of the Single Leg Hamstring Bridge Test in Military Settings

Resistance Training Improves Muscle Strength and Function, Regardless of Protein Supplementation, in the Mid- to Long-Term Period after Gastric Bypass

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