Laterality and age-level differences between young women and elderly women in controlled force exertion (CFE)

Kubota, Hiroshi; Demura, Shinichi; Kawabata, Haruka

doi:10.1016/j.archger.2011.06.027

Cited by 19 publications

(22 citation statements)

References 33 publications

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“…Notably, more than 70 % of the data analyzed in this study reflected measurements taken in the dominant hand, where the highest value for the left or right hand was recorded. Hand grip strength is reportedly greater in the dominant hand than the non-dominant hand [21,49]. The reference values in this study may, therefore, reflect the highest value for individual hand grip strength.…”

Section: Discussionmentioning

confidence: 95%

Reference values for hand grip strength in Japanese community-dwelling elderly: a meta-analysis

Kamide

Kamiya

Nakazono

et al. 2015

Environ Health Prev Med

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Objectives Reference values for hand grip strength in Japanese community-dwelling elderly independent in activities of daily living (ADLs) were calculated by metaanalysis. Methods Papers reporting data on hand grip strength in elderly Japanese adults C60 years of age and independent in ADLs were retrieved from electronic databases. Data were extracted from the selected papers and the weighted mean for hand grip strength by sex was calculated by random effect model. The association of hand grip strength with age and body weight was also analyzed using metaregression analysis. Results Data for 15,784 individuals (5216 men and 10,568 women; mean age 67.0-79.8 years) were extracted from 97 sets of data from 33 papers. The weighted mean for hand grip strength was calculated as 33.11 kg in women. A significant negative correlation was also seen between hand grip strength and age.Conclusions The mean hand grip strength of elderly people calculated in this study can be used as a reference value for the hand grip strength of Japanese communitydwelling elderly who are independent in ADLs. However, age needs to be considered in reference values for hand grip strength.

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Section: Discussionmentioning

confidence: 95%

Reference values for hand grip strength in Japanese community-dwelling elderly: a meta-analysis

Kamide

Kamiya

Nakazono

et al. 2015

Environ Health Prev Med

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“…On the other hand, according to Demura et al (2012), upper-limb movements are divided roughly into two types according to related joints: one large joint (elbow flexion) and plural small joints (handgrip). The agonist muscle or muscular innervation ratio differs between elbow flexion and handgrip (Voss, 1971).…”

mentioning

confidence: 99%

Laterality and Accuracy of Force Exertion in Elbow Flexion

Aoki¹,

Demura²

2017

APE

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In elbow flexion, accuracy of force exertion on demand values might differ between dominant and non-dominant hands. This study examined laterality and accuracy of force exertion in elbow flexion. The participants were 22 right-handed, healthy young males (mean age 22.6 ± 4.3 yrs, mean height 172.7 ± 7.0 cm, mean mass 75.0 ± 12.3 kg). Demand values of 25%, 50%, and 75% of maximum voluntary contraction (MVC) were selected. Using subjective judgment, the participants exerted the elbow flexion strength of each arm on each demand value. Evaluation parameters were differences (errors) between demand and exertion values and their total error. The results of a twoway ANOVA (dominant and non-dominant arms × demand value) showed significant interaction. In multiple comparison tests, errors were greater in 25% MVC than in 50% and 75% MVC for both arms. However, no significant difference was found between arms. In conclusion, in both dominant and non-dominant arms, accuracy of force exertion in elbow flexion does not show laterality and is higher in greater demand values (over 50% MVC) than in lesser values (25% MVC).

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“…Aoki & Demura (2008) reported that in the load of 20% -70% MVC, the peak velocity in the dominant side was higher than that in the non-dominant side in 20% -50% MVC for hand grip, and in the non-dominant side in 20% -30% MVC for elbow flexion. Kubota et al (2012) reported that the laterality was found in controlled force exertion using 5% -25% load of maximal handgrip strength. From the above previous reports, laterality may not be found in high loads.…”

Section: Discussionmentioning

confidence: 99%

The Characteristics and Laterality of Explosive Force Exertion of Hand Grip and Toe Grip

Nakada¹,

Demura²

2014

APE

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This study examines the force exertion characteristics and laterality of maximal explosive force exertion of hand grip and toe grip. Fifteen male subjects, aged 19 to 23 years, performed maximal explosive hand grip and toe grip exertions with their dominant and non-dominant sides. Maximal force value and integral force for 2 sec in the hand grip exertions were significantly larger than those in the toe grip exertions in both the dominant and non-dominant sides. The time required to achieve 90% maximal force value in the hand grip exertions was significantly shorter than that in the toe grip exertions in both sides. Correlations between the dominant and non-dominant sides were significant (r = 0.710 -0.889) in maximal force value and integral force for 2 sec during the hand and toe grip exertions, but they were not significant (hand grip: r = 0.242, toe grip: r = 0.032) with respect to the time taken to achieve 90% maximal force value. In conclusion, a force exertion value increases more quickly in an explosive hand grip than that in an explosive toe grip. The laterality may relate to time parameters in both explosive force exertions, but not to ones related to force.

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Laterality and age-level differences between young women and elderly women in controlled force exertion (CFE)

Cited by 19 publications

References 33 publications

Reference values for hand grip strength in Japanese community-dwelling elderly: a meta-analysis

Reference values for hand grip strength in Japanese community-dwelling elderly: a meta-analysis

Laterality and Accuracy of Force Exertion in Elbow Flexion

The Characteristics and Laterality of Explosive Force Exertion of Hand Grip and Toe Grip

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