Evidence map›Paper›PMID 40416624›Full record

ArticlePeerJ2025

Optimizing stretch-shortening cycle performance: effects of drop height and landing strategy on lower-limb biomechanics in drop jumps.

Qin Zhang, Fei Li, Danielle Anne Trowell, Muzu Hou, Zhenghe Qiu, Shiqin Chen, Haifeng Ma

Abstract read
In one paragraph

Article in PeerJ, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
–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

7 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
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.

Qin ZhangSchool of Athletic Performance, Shanghai University of Sport, Shanghai, China.
Fei LiSchool of Athletic Performance, Shanghai University of Sport, Shanghai, China.
Danielle Anne TrowellSchool of Exercise and Nutrition Sciences, Deakin University, Melbourne, Australia.ORCID 0000-0002-4578-9952
Muzu HouSchool of Athletic Performance, Shanghai University of Sport, Shanghai, China.
Zhenghe QiuSchool of Exercise and Nutrition Sciences, Deakin University, Melbourne, Australia.ORCID 0009-0002-3195-8310
Shiqin ChenSchool of Athletic Performance, Shanghai University of Sport, Shanghai, China.
Haifeng MaSchool of Athletic Performance, Shanghai University of Sport, Shanghai, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: The stretch-shortening cycle (SSC) enhances performance in jumping, sprinting, and changes of direction. Drop heights and landing strategies affect its efficiency. This study investigates the effects of varying drop heights and landing strategies (hip- Methods: A three-dimensional (3D) motion capture system and force plate collected biomechanical data from 18 college athletes performing DJs with hip- and knee-dominant strategies at 30, 45, and 60 cm heights. A two-factor repeated measures analysis of variance (ANOVA) compared peak impact force, reactive strength index (RSI), leg stiffness (K Results: Drop height significantly affected biomechanical variables ( Conclusion: In DJs, SSC performance was optimised at a 30 cm drop height, with peak efficiency observed in the knee-dominant strategy. At 45 and 60 cm, SSC efficiency declined and knee energy dissipation increased, while the hip-dominant strategy may provide greater joint protection by increasing energy dissipation at the ankle. These findings suggest the knee-dominant strategy is best suited to 30 cm, whereas the hip-dominant strategy may enhance safety at higher drop heights.

Indexed as

Athletic PerformanceLower ExtremityPlyometric ExerciseAthletesBiomechanical PhenomenaFemaleHip JointHumansKnee JointMaleYoung AdultDrop heightDrop jumpLanding strategyStretch-shortening cycle

Identifiers

PMID40416624
PMCPMC12103163

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.