Sprint Kayaking Performance Enhancement by Isometric Strength Training Inclusion: A Randomized Controlled Trial

Area of Science:

• Sports Science and Exercise Physiology
• Biomechanics and Performance Analysis

Background:

• Isometric strength training (IST) is recognized for its potential to improve athletic performance.
• The specific benefits of incorporating IST into sprint kayaking training regimens require further investigation compared to traditional methods.

Purpose of the Study:

• To compare the effects of including IST versus traditional strength training (TRAD) on sprint kayaking performance.
• To evaluate changes in isometric strength and rate of force development (RFD) in response to both training protocols.

Main Methods:

• Twenty sprint kayaking athletes were randomly assigned to either a TRAD or an IST group.
• Both groups underwent a six-week strength training program twice weekly.
• The IST group replaced half the volume of traditional exercises with specific isometric contractions (squat, bench press, prone bench pull) at defined joint angles.

Main Results:

• A significant time effect was observed for the 200-m kayak ergometer time trial (200mTT) and most isometric strength measures.
• The IST group showed significantly greater improvements in 200mTT, peak force, and RFD90 for specific exercises compared to the TRAD group.
• A significant time x group interaction indicated superior gains in sprint kayaking and strength performance with the inclusion of IST.

Conclusions:

• Integrating isometric strength training into a training program leads to greater improvements in sprint kayaking performance compared to traditional strength training alone.
• IST effectively enhances key strength metrics, including peak force and rate of force development, relevant for explosive sports like sprint kayaking.