Evidence map›Paper›PMID 20336310›Full record

ArticleEuropean journal of applied physiology2010

Yearlong physical activity and sarcopenia in older adults: the Nakanojo Study.

Hyuntae Park, Sungjin Park, Roy J Shephard, Yukitoshi Aoyagi

Abstract read
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In one paragraph

Article in European journal of applied physiology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 75 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
75citing papers in PubMed, 3 pooled it
4.8field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

75 citing papers in PubMed, 3 syntheses or guidelines pooled it, 157 citations in OpenAlex.

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  8. Six-month walking program changes cognitive and ADL performance in patients with Alzheimer.American journal of Alzheimer's disease and other dementias · 2011
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15 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 2 institutions in 2 countries.

Hyuntae ParkExercise Sciences Research Group, Tokyo Metropolitan Institute of Gerontology, 35-2 Sakaecho, Itabashi-ku, Tokyo, 173-0015, Japan.
Sungjin Park
Roy J Shephard
Yukitoshi Aoyagi
Tokyo Metropolitan Institute of Gerontology · JPUniversity of Toronto · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We tested the hypothesis that a low level of regular daily physical activity in elderly individuals would be associated with a clinically significant degree of sarcopenia. Subjects were 78 male and 97 female free-living Japanese, aged 65-84 years. A pedometer/accelerometer measured continuously the number of steps taken and the intensity of activity 24 h/day for 1 year. A whole-body dual X-ray absorptiometry scan assessed skeletal muscle mass in the upper and lower extremities at the end of the year. Sarcopenia was defined as a muscle mass/height(2) value >1 SD below the mean for healthy young Japanese. Linear and exponential regressions showed that after controlling data for age and/or sex, muscle mass was associated with physical activity, more closely for the legs than for the arms, and for duration of moderate activity (>3 METs) than for step count. Muscle mass increased progressively with daily activity, although when data were categorized into quartiles, muscle mass was not significantly greater in men and women who exceeded, respectively, 8,000 and 6,900 steps/day and/or 22 and 19 min/day at >3 METs. All participants meeting such criteria exceeded our sarcopenia threshold. Multivariate-adjusted logistic regressions predicted that individuals who walked <5,300 steps/day and/or spent <15 min/day at >3 METs were, respectively, 2.00-2.66 and/or 2.03-4.55 times more likely to show sarcopenia than those who walked >7,800 steps/day and/or spent >23 min/day at >3 METs. Our hypothesis was proven correct: seniors who walked at least 7,000-8,000 steps/day and/or spent 15-20 min/day at an intensity of >3 METs were likely to have a muscle mass above the sarcopenia threshold.

Indexed as

Absorptiometry, PhotonAgedAged, 80 and overCross-Sectional StudiesFemaleHumansIncidenceJapanLogistic ModelsLongitudinal StudiesMaleMotor ActivityMuscle, SkeletalSarcopenia

Identifiers

PMID20336310
OpenAlexW2077374261

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.