Evidence map›Paper›PMID 42323581›Full record

ArticleBMC musculoskeletal disorders2026

The effect of two types of pyramidal and reverse pyramidal loading on spine and pelvis coordination variability during deadlift.

Mostafa Sajedi Nia, Mehdi Khaleghi Tazji, Ali Abbasi

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Article in BMC musculoskeletal disorders, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

3 authors.

Mostafa Sajedi NiaDepartment of Biomechanics and Sports Injuries, Faculty of Physical Education and Sports Sciences, Kharazmi University, Tehran, Iran.
Mehdi Khaleghi TazjiDepartment of Biomechanics and Sports Injuries, Faculty of Physical Education and Sports Sciences, Kharazmi University, Tehran, Iran.
Ali AbbasiDepartment of Sport Sciences, Faculty of Education and Psychology, Shiraz University, Shiraz, Iran. a.abbasi81@saadi.shirazu.ac.ir.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo investigate the effects of pyramidal and reverse pyramidal loading on spine and pelvis coordination patterns and their variability during deadlift.

methodsTwelve trained male powerlifters performed deadlifts under two loading protocols: pyramidal (50%, 70%, 90% of 10RM) and reverse pyramidal (same loads in descending order). Segmental coordination (PL-LB, LB-LT, LT-UT) was analyzed using 3D motion capture and a modified vector coding method across concentric and eccentric phases. Coordination pattern frequencies and variability were statistically assessed using repeated-measures ANOVA and Statistical Parametric Mapping (SPM).

resultsIn-phase coordination patterns were dominant in the PL-LB and LB-LT couplings across all intensities. However, pyramidal loading led to increased distal dominance and reduced proximal contribution, particularly at 90% intensity. Significant differences in coordination patterns were observed between the two loading strategies, while coordination variability did not differ significantly.

conclusionPyramidal loading imposes greater neuromechanical demands on trunk segments, increasing the risk of coordination breakdown and potential injury in distal spinal regions. Reverse pyramidal loading may offer a safer alternative for high-load resistance training. Further research is warranted under maximal or fatigue-inducing conditions.

Indexed as

Muscle, SkeletalPelvisSpineWeight-BearingWeight LiftingAdultBiomechanical PhenomenaHumansMaleYoung AdultDeadliftPyramidal loadingReverse pyramidal loadingSpine-pelvis coordinationVector coding

Identifiers

PMID42323581
PMCPMC13536536

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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.