Evidence map›Paper›PMID 30787647›Full record

ArticleJournal of sports science & medicine2019

Dynamic Stretching Has Sustained Effects on Range of Motion and Passive Stiffness of the Hamstring Muscles.

Masahiro Iwata, Ayano Yamamoto, Shingo Matsuo, Genki Hatano, Manabu Miyazaki, Taizan Fukaya, Mitsuhiro Fujiwara, Yuji Asai, Shigeyuki Suzuki

Open access · greenAbstract readControlled Clinical Trial
PubMed Full text at PMC
In one paragraph

Article in Journal of sports science & medicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed, 2 pooled it
6.8field-weighted citation impact, top 2% 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

41 citing papers in PubMed, 2 syntheses or guidelines pooled it, 95 citations in OpenAlex.

  1. Assessment of the Range of Movement of the Lower Limb in Sport: Advantages of the ROM-SPORT I Battery.International journal of environmental research and public health · 2020
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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

9 authors at 5 institutions in 2 countries.

Masahiro IwataDepartment of Rehabilitation, Faculty of Health Sciences, Nihon Fukushi University, Handa, Japan.
Ayano YamamotoKamiiida Daiichi General Hospital, Nagoya, Japan.
Shingo MatsuoDepartment of Rehabilitation, Faculty of Health Sciences, Nihon Fukushi University, Handa, Japan.
Genki HatanoInstitute of Sport Science, ASICS Corporation, Kobe, Japan.
Manabu MiyazakiDepartment of Physical Therapy, Faculty of Medical Science for Health, Teikyo Heisei University, Toshima-ku, Japan.
Taizan FukayaKyoto Kujo Hospital, Kyoto, Japan.
Mitsuhiro FujiwaraProgram in Physical and Occupational Therapy, Nagoya University, Nagoya, Japan.
Yuji AsaiDepartment of Rehabilitation, Faculty of Health Sciences, Nihon Fukushi University, Handa, Japan.
Shigeyuki SuzukiDepartment of Health and Sports Sciences, School of Health Sciences, Asahi University, Mizuho, Japan.
Nihon Fukushi University · JPAsics (Japan) · JPKamiichi General Hospital · JPMizuho (Japan) · JPUniversity of Kentucky · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Dynamic stretching (DS) is often performed during warm-up to help avoid hamstring muscle injuries, increase joint flexibility, and optimize performance. We examined the effects of DS of the hamstring muscles on passive knee extension range of motion (ROM), passive torque (PT) at the onset of pain (as a measure of stretch tolerance), and passive stiffness of the muscle-tendon unit over an extended period after stretching. Twenty-four healthy subjects participated, with 12 each in the experimental and control groups. Stretching was performed, and measurements were recorded using an isokinetic dynamometer pre-intervention, and at 0, 15, 30, 45, 60, 75, and 90 min post-intervention. DS consisted of ten 30-s sets of 15 repetitions of extension and relaxation of the hamstrings. ROM increased significantly (range, 7%-10%) immediately after DS, and the increase was sustained over 90 min. PT at the onset of pain also increased immediately by 10% but returned to baseline by 30 min. Passive stiffness decreased significantly (range, 7.9%-16.7%) immediately after DS, and the decrease was sustained over 90 min. Post-DS values were normalized to pre-DS values for the respective outcomes in both groups. ROM was significantly higher (range, 7.4%-10%) and passive stiffness was significantly lower (range, 5.4%-14.9%) in the experimental group relative to the control group at all time points. Normalized PT values at the onset of pain were significantly higher in the experimental group at 0-15 min than in the controls, but the differences were smaller at 30-45 min and not significant thereafter. We conclude that DS increases ROM and decreases passive stiffness in a sustained manner, and increases PT at the onset of pain for a shorter period. Overall, our results indicate that when performed prior to exercise, DS is beneficial for the hamstring muscles in terms of increasing flexibility and reducing stiffness.

Indexed as

FemaleHamstring MusclesHumansKneeMaleMuscle Stretching ExercisesMuscle TonusMyalgiaRange of Motion, ArticularTorqueYoung AdultexerciseFlexibilitymuscle stretchingmuscle-tendon unitretention timestretch tolerance

Identifiers

PMID30787647
PMCPMC6370952
OpenAlexW2904850448

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.