Evidence map›Paper›PMID 28566807›Full record

ArticleBiology of sport2017

Specific physical trainability in elite young soccer players: efficiency over 6 weeks' in-season training.

M Chtara, M Rouissi, M Haddad, H Chtara, A Chaalali, A Owen, K Chamari

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Biology of sport, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 16 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 16 pooled it
–field-weighted citation impact
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

31 citing papers in PubMed, 16 syntheses or guidelines pooled it.

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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

7 authors.

M ChtaraTunisian Research Laboratory ''Sport Performance Optimisation'', National Center of Medicine and Science in Sports, Tunis, Tunisia.
M RouissiTunisian Research Laboratory ''Sport Performance Optimisation'', National Center of Medicine and Science in Sports, Tunis, Tunisia.
M HaddadCollege of Arts & Sciences, Qatar University, Doha.
H ChtaraTunisian Research Laboratory ''Sport Performance Optimisation'', National Center of Medicine and Science in Sports, Tunis, Tunisia.
A ChaalaliTunisian Research Laboratory ''Sport Performance Optimisation'', National Center of Medicine and Science in Sports, Tunis, Tunisia.
A OwenServette Centre for Football Research (SCFR), Servette Football Club, Geneva, Switzerland.
K ChamariAthlete Health and Performance Research Centre, ASPETAR, Qatar Orthopaedic and Sports Medicine Hospital, Doha, Qatar.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The aim of the present study was to compare the effects of 3 training protocols (plyometric [PLYO], agility [AG], or repeated shuttle sprints [RS]) on physical performance in the same population of young soccer players. Forty-two youth-level male players (13.6±0.3-years; 1.65±0.07 m; 54.1±6.5 kg; body fat: 12.8±2.6%) participated in a short-term (6-week) randomized parallel fully controlled training study (pre-to-post measurements): PLYO group, n=10; AG group, n=10; RS group, n=12; and control group [CON] n=10. PLYO training = 9 lower limb exercises (2-3 sets of 8-12 repetitions). The AG group performed planned AG drills and direction changes. RS training consisted of 2-4 sets of 5-6x 20 to 30 m shuttle sprints (20 seconds recovery in between). Progressive overload principles were incorporated into the programme by increasing the number of foot contacts and varying the complexity of the exercises. Pre/post-training tests were: bilateral standing horizontal jump, and unilateral horizontal jumps, sprint (30 m with 10 m lap time), agility (20 m zigzag), and repeated sprint ability (RSA) (i.e. 6x30 m shuttle sprints: 2x15 m with 180° turns). Significant main effects for time (i.e. training application) and group (training type) were detected. Improvements in horizontal jumping were higher (p<0.01: ES=large) in PLYO. The RS group improved significantly more (p<0.01; ES=large) than other groups: 30 m sprint, RSA

Indexed as

AgilityIn-seasonPlyometric trainingRepeated sprintTeam player

Identifiers

PMID28566807
PMCPMC5424453

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.