Self-Selected Versus Standardised Warm-Ups; Physiological Response on 500 m Sprint Kayak Performance.

Amelia F Dingley,John F T Fernandes,Alexander P Willmott

doi:10.3390/sports8120156

Amelia F Dingley, John F T Fernandes + Show 1 more

Open Access

https://doi.org/10.3390/sports8120156

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Journal: Sports	Publication Date: Nov 30, 2020
Citations: 4	License type: CC BY 4.0

Affiliation: Hartpury University, University of Lincoln

Abstract

This study investigated the effectiveness of a self-selected (SS) warm-up on 500 m sprint kayak performance (K500) compared to continuous (CON) and intermittent high intensity (INT)-type warm-ups. Twelve nationally ranked sprint kayakers (age 17.7 ± 2.3 years, mass 69.2 ± 10.8 kg) performed CON (15 min at the power at 2 m·mol−1), INT (10 min at 2 m·mol−1, followed by 5 × 10 s sprints at 200% power at VO2max with 50 s recovery at 55% power at VO2max), and SS (athlete’s normal competition warm-up) warm-ups in a randomised order. After a five-minute passive recovery, K500 performance was determined on a kayak ergometer. Heart rate and blood lactate (BLa) were recorded before and immediately after each warm-up and K500 performance. Ratings of perceived exertion (RPE) were recorded at the end of the warm-up and K500. BLa, heart rate, and RPE were generally higher after the INT than CON and SS warm-ups (p < 0.05). No differences in these parameters were found between the conditions for the time trial (p > 0.05). RPE and changes in BLa and heart rate after the K500 were comparable. There were no differences in K500 performance after the CON, SS, or INT warm-ups. Applied practitioners can, therefore, attain similar performance independent of warm-up type.

Highlights

Individual sprint kayaking is contested over 500 m (K500) at both the national and international levels [1]
Moderately greater increases in blood lactate (BLa) were observed after the INT versus SS (ES = −0.91 ± 0.71)
Sprint kayakers competing in the K500 can attain similar performance with a variety of warm-ups

Summary

Introduction

Individual sprint kayaking is contested over 500 m (K500) at both the national and international levels [1]. At the 2019 U23 World Championships, male and female winners completed the event in. 107.25 and 116.07 s, respectively [2]. These winning performances were executed by producing and maintaining the highest average boat velocity over the full 500 m [3]. When competing in the K500, high level female athletes sustain a power output that is around VO2peak (~45 mL·kg·min−1 ) [5], suggesting the need for a high power output at VO2peak. Despite the K500 event being deemed a sprint event, the aerobic energy system contributes ~62% of the energy required [5,6,7]

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