ArticleJournal of sports science & medicine2019
Influence of Sex and Maximum Strength on Reactive Strength Index-Modified.
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 12 papers, 1 of them a synthesis that pooled 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.
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.
Who cites it
12 citing papers in PubMed, 1 synthesis or guideline pooled it, 21 citations in OpenAlex.
- Terminology and Interpretation Across Neuromuscular Profiling Methods: A Systematic Review.Sports medicine (Auckland, N.Z.) · 2026Pooled it
- Neuromuscular Profile of CrossFitJournal of functional morphology and kinesiology · 2026Article
- Effect of plyometric training based on the integral reactive strength index of national-level jumpers and sprinters. A randomized crossover trial.Biology of sport · 2026Article
- A hop testing alternative for functional performance following anterior cruciate ligament reconstruction.PloS one · 2024Article
- Is there a relationship between isometric hamstrings-to-quadriceps torque ratio and athletes' plyometric performance?PloS one · 2023Article
- Reactive strength index during single-limb vertical continuous jumps after anterior cruciate ligament reconstruction: cross-sectional study.BMC sports science, medicine & rehabilitation · 2022Article
- Reactive strength index-modified: reliability, between group comparison, and relationship between its associated variables.Biology of sport · 2021Article
- Relationship between Running Spatiotemporal Kinematics and Muscle Performance in Well-Trained Youth Female Athletes. A Cross-Sectional Study.International journal of environmental research and public health · 2021Article
- Association and Agreement between Reactive Strength Index and Reactive Strength Index-Modified Scores.Sports (Basel, Switzerland) · 2021Article
- Kinematic and Neuromuscular Measures of Intensity During Drop Jumps in Female Volleyball Players.Frontiers in psychology · 2021Article
- Dynamic Strength Index: Relationships with Common Performance Variables and Contextualization of Training Recommendations.Journal of human kinetics · 2020Article
- The prediction of swim start performance based on squat jump force-time characteristics.PeerJ · 2020Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors at 4 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Reactive strength index-modified (RSImod) is a measure of lower body explosiveness calculated by dividing jump height by time to takeoff. RSImod is different between stronger and weaker athletes and between males and females. The purpose of this study was to evaluate differences in RSImod between males and females while controlling for maximal strength and lower body explosiveness. Forty-three female and fifty-eight male Division-I athletes performed countermovement jumps on a force plate during unloaded (0kg) and loaded (20kg) conditions. We used an ANCOVA to test whether RSImod is different between sexes conditioning on relative maximum strength (PFa) and average RFD 0-200ms (RFD200) measured during the isometric mid- thigh pull (IMTP). Differences of 0.087 (95% CI: 0.040-0.134; p = 0.0005) and 0.075 (95% CI: 0.040-0.109, p < 0.0001) were observed for RSImod between sexes in unloaded and loaded conditions, respectively. A male with PFa of 186 (grand mean of the sample) and RFD200 of 6602 N/s (grand mean of the sample) is predicted to have 28% greater RSImod than a female of similar PFa and RFD200. Maximum strength development should be a primary aim of training in female athletes, in addition to other trainable factors, such as stiffness and RFD.
Indexed as
Identifiers
30787653PMC6370960W2909024471What OpenQuestion holds
Registered trials
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.