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Acute Effects of Intermittent Foot Cooling on 1 RM Leg Press Strength in Resistance-Trained Men: A Pilot Study

Author

Listed:
  • Chih-Min Wu

    (Department of Leisure and Sports Management, Cheng Shiu University, Kaohsiung 83300, Taiwan)

  • Mei-Hsien Lee

    (Department of Mathematics, University of Taipei, Taipei 100234, Taiwan)

  • Wen-Yi Wang

    (Graduate Institute of Sports Pedagogy, University of Taipei, Taipei 111036, Taiwan)

  • Zong-Yan Cai

    (Center for Physical and Health Education, SiWan College, National Sun Yat-Sen University, Kaohsiung 804201, Taiwan)

Abstract

Inter-set peripheral cooling can improve high-intensity resistance exercise performance. However, whether foot cooling (FC) would increase 1 repetition maximum (RM) lower-limb strength is unclear. This study investigated the effect of intermittent FC on 1 RM leg press strength. Ten recreational male lifters performed three attempts of 1 RM leg press with FC or non-cooling (NC) in a repeated-measures crossover design separated by 5 days. FC was applied by foot immersion in 10 °C water for 2.5 min before each attempt. During the 1 RM test, various physiological measures were recorded. The results showed that FC elicited higher 1 RM leg press strength (Δ [95% CI]; Cohen’s d effect size [ES]; 13.6 [7.6–19.5] kg; ES = 1.631) and electromyography values in vastus lateralis (57.7 [8.1–107.4] μV; ES = 0.831) and gastrocnemius (15.1 [−3.1–33.2] μV; ES = 0.593) than in NC. Higher arousal levels (felt arousal scale) were found in FC (0.6 [0.1–1.2]; ES = 0.457) than in NC. In conclusion, the preliminary findings, although limited, suggest intermittent FC has a potential ergogenic role for recreational athletes to enhance maximal lower-limb strength and may partly benefit strength-based competition events.

Suggested Citation

  • Chih-Min Wu & Mei-Hsien Lee & Wen-Yi Wang & Zong-Yan Cai, 2021. "Acute Effects of Intermittent Foot Cooling on 1 RM Leg Press Strength in Resistance-Trained Men: A Pilot Study," IJERPH, MDPI, vol. 18(18), pages 1-11, September.
    • Handle: RePEc:gam:jijerp:v:18:y:2021:i:18:p:9594-:d:633763
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