Author(s): KIKUCHI, S., SAITO, M., HOMMA, H., KIKUCHI, N., Institution: NIPPON SPORT SCIENCE UNIVERSITY, Country: JAPAN, Abstract-ID: 936

INTRODUCTION:
Concurrent high-intensity resistance training and endurance training are effective for endurance performance (Eihara et al., 2022). However, the effects of resistance training volume on endurance performance in concurrent training is unknown. The purpose of present study was to examine the effects of resistance training volume prior to endurance training on endurance performance in concurrent training, using a meta-analysis and systematic review.
METHODS:
Relevant studies published before February 7th, 2024 were identified from PubMed database using the following keywords and Boolean operators: (“concurrent training” or “combined training” or “complex training”) AND (“strength training” OR “resistance training ” OR “velocity based training ”) AND (“endurance training” OR “aerobic training” OR “endurance performance” OR “endurance capacity”). Studies that met the following criteria were included: (1) published in English, (2) athlete subjects, (3) had a target group, and (4) measured endurance performance. Collected endurance performance measures were running speed at maximal oxygen uptake, power at maximal oxygen uptake, oxygen uptake at the specified load, and time trial. All analyses were conducted using the Review Manager software program (version 5.4) with a significance level of p<0.05.
RESULTS:
The initial search strategy retrieved 362 articles. After completion of the exclusion process, 4 articles remained. A total of 73 participants from 4 studies were included in the meta-analysis. Training intervention period in these studies were 8 to 12 weeks. Low volume resistance training was shown to significantly improve endurance performance compared to high volume resistance training (ES=0.39, 95%CI – 0.05 to 0.73; p=0.03).
CONCLUSION:
The combination of low-volume resistance training and endurance training was observed to improve endurance performance compared to the combination of high-volume resistance training and endurance training.