Dataset Information

Grip strength and lower limb extension power in 19-72-year-old Danish men and women: the Health2006 study.

ABSTRACT:

Aim

To assess muscular fitness by hand grip strength (HGS) and lower limb extension power (LEP) and to explore associations with age, leisure time physical activity (LTPA) and body composition.

Study population

A population-based sample of 19-72-year-old men and women were invited to participate in the health survey 'Health2006'. The response rate was 43.8% (N=3471), 55% were women, and the mean age was 49 ± 13 years.

Methods

Height, weight, waist circumference, HGS and LEP were measured and participants answered a self-administered questionnaire. LEP was measured in a subsample of subjects (n=438). Gender-stratified multiple linear regression analyses were carried out. Data were adjusted for age, height and waist circumference.

Results

A large inter-individual variation was found in HGS and LEP. Both measures declined with age and were highly correlated (r=0.75, p<0.0001). LTPA was positively associated with HGS in men (p=0.0002) and women (p<0.0001) in the total sample, but in the subsample was significant in men only (p=0.004); the association between LTPA and LEP was significant in women only (p=0.02).

Conclusion

In this large population-based study sample, muscular fitness declined with age and LTPA was associated with HGS in both genders. The findings emphasise the importance of maintaining a physically active lifestyle at any age.

SUBMITTER: Aadahl M

PROVIDER: S-EPMC3191596 | biostudies-literature | 2011 Jan

REPOSITORIES: biostudies-literature

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Publications

Grip strength and lower limb extension power in 19-72-year-old Danish men and women: the Health2006 study.

Aadahl Mette M Beyer Nina N Linneberg Allan A Thuesen Betina Heinsbæk BH Jørgensen Torben T

BMJ open 20110101 2

<h4>Aim</h4>To assess muscular fitness by hand grip strength (HGS) and lower limb extension power (LEP) and to explore associations with age, leisure time physical activity (LTPA) and body composition.<h4>Study population</h4>A population-based sample of 19-72-year-old men and women were invited to participate in the health survey 'Health2006'. The response rate was 43.8% (N=3471), 55% were women, and the mean age was 49 ± 13 years.<h4>Methods</h4>Height, weight, waist circumference, HGS and LEP ...[more]

PMID: 22021882

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Project description:BackgroundVitamin D may play a role in skeletal muscle because of the discovery of VDR in skeletal muscle. However, vitamin D deficiency is a global problem, including athletes. Studies examining the effect of vitamin D supplementation on muscle function in athletes have inconsistent results. Therefore, we aimed to quantitatively summarize the evidence for the effect of vitamin D supplementation on skeletal muscle strength and explosive power of athletes using a meta-analysis.MethodsPubMed, EMBASE, Cochrane Library, and Web of Science were searched for studies to identify randomized controlled trials or controlled trials meeting the inclusion criteria. By a meta-analysis, effect sizes (standardized mean differences, SMD) with 95% confidence intervals (CI) was calculated to compare reported outcomes across studies, I2 index was used to assessing heterogeneity, and heterogeneity factors were identified by regression analysis. The potential publication and sensitivity analyses were also assessed.ResultsEight RCTs involving 284 athletes were included. The protocols used to evaluate the muscle strength of athletes were inconsistent across the included studies, and muscle explosive power was assessed via vertical jump tests. The results indicated that vitamin D supplementation had no impact on overall muscle strength outcomes (SMD 0.05, 95% CI: -0.39 to 0.48, p = 0.84). In subgroup analysis, vitamin D supplementation had an effect on lower-limb muscle strength (SMD 0.55, 95% CI:0.12 to 0.98, p = 0.01) but not upper-limb muscle strength (SMD -0.19, 95% CI:-0.73 to 0.36, p = 0.50) or muscle explosive power (SMD 0.05, 95% CI:-0.24 to 0.34, p = 0.73). Vitamin D supplementation was more effective for athletes trained indoors (SMD 0.48, 95% CI:0.06 to 0.90, p = 0.02).ConclusionsVitamin D supplementation positively affected lower limb muscle strength in athletes, but not upper limb muscle strength or muscle power. Different muscle groups and functions may respond differently to vitamin D supplementation. Additional studies should focus on determining the appropriate vitamin D supplementation methods and optimal serum 25(OH)D levels for athletes.RegistrationThe protocol for our study is registered in the international prospective register of systematic reviews (PROSPERO registration number CRD42016045872).

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Dataset Information

Grip strength and lower limb extension power in 19-72-year-old Danish men and women: the Health2006 study.

Aim

Study population

Methods

Results

Conclusion

Publications

Grip strength and lower limb extension power in 19-72-year-old Danish men and women: the Health2006 study.

Similar Datasets

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