Evidence map›Paper›PMID 26015074›Full record

Trial reportChinese journal of integrative medicine2016

Effect of Tai Chi on muscle strength of the lower extremities in the elderly.

Ming Zhou, Nan Peng, Qiang Dai, Hong-Wei Li, Rong-Guang Shi, Wei Huang

Abstract readClinical Trial
PubMed Publisher
In one paragraph

Trial report in Chinese journal of integrative medicine, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 2 pooled it
7.1field-weighted citation impact, top 4% 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

19 citing papers in PubMed, 2 syntheses or guidelines pooled it, 42 citations in OpenAlex.

  1. Pooled it
  2. Health benefits of tai chi: What is the evidence?Canadian family physician Medecin de famille canadien · 2016
    Pooled it
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  19. Canadian family physician Medecin de famille canadien · 2016
    Review
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

6 authors at 4 institutions in 2 countries.

Ming ZhouDepartment of Geriatric Rehabilitation, Chinese People's Liberation Army General Hospital, Beijing, 100853, China.
Nan PengDepartment of Geriatric Rehabilitation, Chinese People's Liberation Army General Hospital, Beijing, 100853, China. pengnan301@163.com.
Qiang DaiInstitute of Clinical Pharmacology, Peking University First Hospital, Beijing, 100191, China.
Hong-Wei LiYuquanlu Clinic, Chinese People's Liberation Army, Beijing, 100037, China.
Rong-Guang ShiBeijisi Clinic, Chinese People's Liberation Army, Beijing, 100083, China.
Wei HuangPhysical Medicine and Rehabilitaion/Extended Care, Atlanta VAMC, Decatur, USA.
Chinese People's Liberation Army · CNChinese People’s Liberation Army 263 hospital · CNAtlanta VA Medical Center · USPeking University First Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveAging is associated with a progressive decline in muscle strength, muscle mass and impaired physical function, which reduces mobility and impairs quality of life in the elderly population. The 6-12 months of exercise can enhance the muscle strength, but these improvements can only be maintained for a short period. In this study, we investigated the effects of long-term Tai Chi (TC) exercise on muscle strength of lower extremities.

methodsA cross-sectional study was conducted in 205 long-term TC practitioners (age: 60-89 years) and 205 age and gentle matched controls who did not practice TC. Each of the activity group was further divided into three distinct age groups: G1, 60-69 years; G2, 70-79 years; and G3, 80-89 years. Hand-held dynamometery was used to measure the maximum isometric strength of iliopsoas, quadriceps femoris, tibialis anterior and hamstrings in both sides of the participants. Unpaired t tests were performed to compare the difference of strength between the TC and non-Tai Chi (NTC) groups. Multivariate analysis of variance (MANOVA) was used to compare the lower muscle strengths among the different age groups in the TC and NTC groups. Pearson's correlations were used to quantify the linear relationship between the months of TC practice and lower limbs muscle strength.

resultsThe inter-rater reliabilities of iliopsoas, quadriceps femoris, tibialis anterior and hamstrings were intraclass correlation coeffificient (ICC) (1,1) = 0.895 (0.862-0.920), ICC (2,2) = 0.905 (0.874-0.928), ICC (3,3) = 0.922 (0.898-0.941) and ICC (4,4) = 0.930 (0.908-0.947). The strength of the muscles in the TC group did not differ among different age groups (P>0.05). The strength of iliopsoas, quadriceps femoris, tibialis anterior and hamstrings in TC group was higher than that in the NTC group (P<0.05). A correlation between muscle strength and extension of the exercise period was positive (P<0.05).

conclusionsResults shed light on the orientation and magnitude of long-term TC in preventing muscle strength loss with aging. TC might be a good form to slow down the trend of age-related decline in muscle strength in community-dwelling population.

Indexed as

Tai JiAgedAged, 80 and overAgingFemaleHumansLower ExtremityMaleMuscle StrengthReproducibility of Resultslower-extremitymuscle strengthTai Chi

Identifiers

PMID26015074
OpenAlexW2221750570

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.