Comparing the Acute Effect of an Isometric and Heavy Resistance Training Session on Neuromuscular Function: Isometric vs Heavy Resistance Training

Danny Lum*, Glyn Howatson

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Purpose This study compared the acute effects of a session of isometric (ISO) and heavy resistance (HRT) training on 20-m sprint, countermovement jump (CMJ) and isometric mid-thigh pull (IMTP) performance.

Methods Ten resistance trained athletes (age: 26.7±6.2 years, body mass: 71.5±16.2 kg, height: 1.68±0.10 m) performed baseline measures for 20-m sprint, CMJ and IMTP prior to either an ISO or HRT session. During both training sessions, participants performed back squat, Romanian deadlift and split squat. Post-test performances were measured 5 min and 24 h after each training session. Participants return a week later to perform the other training session.

Results A significant time x condition effect for 20-m sprint time (P=0.007) and IMTP peak force (P=0.003). Main time effect was observed for 20-m sprint (P
Conclusion The results above indicated that HRT acutely led to greater reduction in sprinting strength performance and lower perceived recovery post 24 h than ISO.
Original languageEnglish
JournalJournal of Science in Sport and Exercise
Publication statusAccepted/In press - 28 Jun 2023

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