The abstract is read at the publisher; the summary is JClub's.
Pushing/pulling isometric muscle actions (PIMA) show longer time to task failure than holding isometric actions (HIMA) at equal absolute intensity in appendicular muscles (g=-0.89, p<0.001).
- Why it matters: The field lacks consensus on how to distinguish PIMA from HIMA, limiting consistent use for assessing strength, fatigue, and neuromechanical factors.
- What they did: A registered scoping and systematic review (PROSPERO: CRD42024530386) screened 54 studies (n=915; 374 comparisons), using revised Joanna Briggs Institute risk-of-bias and adapted GRADE certainty, with meta-analyses for TTF, RPE, HR, and MAP.
- The result: Meta-analyses found trivial HR and MAP differences (|g|≤0.19; p≥0.008) and higher RPE during PIMA only at 50% TTF (g=-0.31, p=0.008), while narrative synthesis linked PIMA and HIMA to distinct neuromechanical and physiological patterns.
The findingWhy it mattersWhat they didThe result
AI summary of the abstract · may contain errors · not medical advice · read the paper.