Please use this identifier to cite or link to this item:
Full metadata record
DC FieldValueLanguage
dc.contributor.authorLum, Danny Wan Yinen
dc.contributor.authorComfort, Paulen
dc.contributor.authorBarbosa, Tiago M.en
dc.contributor.authorBalasekaran, Govindasamyen
dc.identifier.citationLum, D., Comfort, P., Barbosa, T. M., & Balasekaran, G. (2022). Comparing the effects of plyometric and isometric strength training on dynamic and isometric force-time characteristics. Biology of Sport, 39(1), 189-197.
dc.identifier.issn0860-021X (print)-
dc.identifier.issn2083-1862 (online)-
dc.descriptionThe open access publication is available at:
dc.description.abstractThe purpose of the study was to compare the change in dynamic and isometric force-time characteristics after plyometric (PLYO) or isometric strength training (ISO). Twenty-two endurance runners (age = 37 ± 6 years,stature = 1.71 ± 0.05 m, body mass = 62.7 ± 8.6 kg, weekly mileage = 47.3 ± 10.8 km) performed a countermovement jump (CMJ) and isometric mid-thigh pull (IMTP) test during pre- and post-tests. They were then randomly assigned to either PLYO or ISO group and completed 12 sessions of intervention over six weeks. The PLYO included drop jump, single leg bounding and split jump, and the ISO included IMTP and isometric ankle plantar flexion. Significant and large time x group interactions were observed for CMJ countermovement depth (P = 0.037, ƞ²p = 0.21) and IMTP and relative peak force (PF) (P = 0.030, ƞ²p = 0.22). Significant and large main effects for time were observed in CMJ height, peak power, propulsive phase duration, countermovement depth, reactive strength index modified, IMTP PF and relative PF (P < 0.05, 0.20 ≤ ƞ²p ≤ 0.65). Effect for time showed small improvement in CMJ height for both PLYO (P < 0.001, d = 0.48) and ISO (P = 0.009, d = 0.47), small improvement in CMJ PP in PLYO (P = 0.020, d = 0.21), large increase in countermovement depth (P = 0.004, d = 1.02) and IMTP relative PF (P < 0.001, d = 0.87), and moderate increase in propulsive phase duration (P = 0.038, d = 0.65) and IMTP PF (P < 0.001, d = 0.55) in ISO. There were large differences between groups for percentage change in countermovement depth (P = 0.003, d = 0.96) and IMTP relative PF (P = 0.047, d = 0.90). In conclusion, both PLYO and ISO improved CMJ jump height via different mechanisms, while only ISO resulted in improved IMTP PF and relative PF.-
dc.relation.ispartofBiology of Sporten
dc.titleComparing the effects of plyometric and isometric strength training on dynamic and isometric force-time characteristicsen
dc.subject.keywordIsometric mid-thigh pullen
dc.subject.keywordCountermovement jumpen
dc.subject.keywordPeak poweren
dc.subject.keywordReactive strength index modifieden
item.fulltextNo file-
Appears in Collections:Journal Articles
Show simple item record


checked on Sep 29, 2023


checked on Sep 27, 2023

Page view(s)

checked on Sep 29, 2023

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.