PNF and Movement

Korea Proprioceptive Neuromuscular Facilitation Association (대한고유수용성신경근촉진법학회)
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Effects of Different Types of Unstable Loads on Core and Lower Extremity Muscle Activity During Squatting in Young Adult Women

다양한 유형의 불안정한 하중이 젊은 성인 여성의 스쿼트 시 코어와 하지 근활성도에 미치는 영향

  • Ga-Eun Seo (Department of Marine-Sports, Division of Smart Healthcare, Pukyong National University ) ;
  • Dae-Woon Ha (Department of Marine-Sports, Division of Smart Healthcare, Pukyong National University ) ;
  • Il-Young Yu (Department of Marine-Sports, Division of Smart Healthcare, Pukyong National University ) ;
  • Soo-Yong Kim (Department of Physical Therapy, Pusan National University Yangsan Hospital) ;
  • Tae-Gyu Kim (Department of Marine-Sports, Division of Smart Healthcare, Pukyong National University )
  • 서가은 (국립부경대학교 스마트헬스케어학부 해양스포츠전공) ;
  • 하대운 (국립부경대학교 스마트헬스케어학부 해양스포츠전공) ;
  • 유일영 (국립부경대학교 스마트헬스케어학부 해양스포츠전공) ;
  • 김수용 (양산부산대학교병원 물리치료실) ;
  • 김태규 (국립부경대학교 스마트헬스케어학부 해양스포츠전공)
  • Received : 2024.06.28
  • Accepted : 2024.07.24
  • Published : 2024.08.31
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Abstract

Purpose: The aim of this study was to investigate the effects of different types of unstable loads on core and lower limb muscle activity during squatting. Methods: Nineteen subjects (all females) with resistance experience but no unstable resistance experience participated in the study. Subjects performed squats under three load conditions, and core and lower limb muscle activity was measured during eccentric and concentric contractions. Results: During the eccentric contraction, core and hip flexor activity was significantly higher with the aqua bag than with the barbell or resistance band, and for the quadriceps, the resistance band was significantly higher than the barbell. During the concentric contraction phase, core and hamstring muscle activity was significantly higher with the aqua bag than with the barbell and elastic band (p < 0.05). Conclusion: Squats with an aqua bag increase core and biceps brachii activation and can be recommended as a training method to improve trunk stability.

Keywords

References

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