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Korean Society of Dance Science
[ Article ]
Official Journal of the Korean Society of Dance Science - Vol. 42, No. 3, pp.37-52
ISSN: 1229-7836 (Print) 2713-6949 (Online)
Print publication date 31 Jul 2025
Received 09 Jun 2025 Revised 11 Jul 2025 Accepted 23 Jul 2025
DOI: https://doi.org/10.21539/Ksds.2025.42.3.37

관성센서를 활용한 룸바 춤 동작에서 남녀 댄서의 몸통-골반 협응 패턴 비교

이우진* ; 김영관**
*전남대학교 체육학과 박사 wjl922@hanmail.net
**전남대학교 사범대학 체육교육과 교수 ykkim01@jnu.ac.kr
Comparison of Trunk-Pelvis Coordination Patterns between Male and Female Dancers in Rumba Using Inertial Sensors
Woojin Lee* ; Youngkwan Kim**
*Ph.D., Department of Physical Education, Chonnam National University wjl922@hanmail.net
**Professor, Department of Physical Education, Chonnam National University ykkim01@jnu.ac.kr

Correspondence to: * ykkim01@jnu.ac.kr

CopyrightⒸ 2025 by the Korean Society of Dance Science

초록

본 연구는 댄스스포츠 룸바의 커플 동작 수행 중 남성과 여성 댄서의 체간 협응 전략을 비교·분석함으로써, 성별 및 역할에 따른 신체 협응 차이를 규명하고자 하였다. 댄스스포츠 경력 5년 이상의 숙련된 남녀 10커플(총 20명)을 대상으로, 대표적인 룸바 루틴을 4개 국면(P1~P4)으로 나누어 반복 수행하도록 하였으며, 관성센서(IMU)를 활용해 몸통(T1)과 골반(PSIS)의 3축 각속도 데이터를 수집하였다. 각속도 신호에 대해 Hilbert 변환을 적용한 뒤, 연속상대위상(Continuous Relative Phase, CRP)을 산출하고, 동위상(≤67.5°), 중간위상(67.5°~112.5°), 반위상(≥112.5°)의 시간누적 비율로 협응 유형을 분석하였다. 분석 결과, 커플이 동일한 동작을 수행함에도 성별에 따라 상이한 협응 전략이 나타났다. 남성은 회전 및 전후 이동이 강조되는 동작에서 몸통과 골반의 분절화된 협응(반위상 중심)을 유지하여 리더로서의 명확한 조절을 나타냈고, 여성은 전반적으로 일체화된 동위상 협응을 바탕으로 팔로워 역할과 전환 동작 시의 유연성을 확보하는 경향을 보였다. 이러한 경향은 커플 댄스에서 성별에 따른 기술적 표현의 차이를 반영한 결과로 해석된다. 본 연구는 댄스스포츠 수행 과정에서 남·여 댄서의 분절 간 및 파트너 간 협응을 동시에 분석한 초기 시도로, 향후 댄스스포츠 동작 평가 기준 정립을 위한 기초자료로 활용될 것으로 예상된다. 다만 기술통계 수준의 분석과 관성센서의 측정잡음(artifact)으로 인한 한계가 있었으며, 향후 더 많은 데이터와 정교한 시계열 기반 분석 기법을 적용한다면 이러한 한계를 보완하고 협응 메커니즘을 더욱 심층적으로 규명할 수 있을 것으로 기대된다.

Abstract

This study aimed to investigate gender- and role-based differences in trunk coordination strategies by comparing male and female dancers during couple performances of the Rumba in dancesport. Ten experienced dance couples (n = 20, with over five years of training) performed a standardized Rumba routine, which was divided into four phases (P1–P4) for repeated execution. Three-axis angular velocity data were collected from the trunk (T1) and pelvis (PSIS) using inertial measurement units (IMUs). Continuous Relative Phase (CRP) values were computed by applying a Hilbert transform to the angular velocity signals, and coordination types were classified based on phase angle ranges: in-phase (≤67.5°), intermediate-phase (67.5°–112.5°), and anti-phase (≥112.5°). The results revealed that despite performing identical movements, male and female dancers exhibited distinct coordination strategies. Male dancers tended to maintain segmented coordination (anti-phase dominant) of the trunk and pelvis during rotation and forward–backward movements, demonstrating clear control as leaders. In contrast, female dancers generally adopted more integrated in-phase coordination, facilitating flexible transitions and responsiveness in their follower role. These findings reflect technical expression differences by gender within partner dancing. This study serves as an initial attempt to analyze both intra-individual and inter-partner coordination in dancesport, and it is expected to contribute foundational data for developing objective performance evaluation criteria. However, limitations include the use of descriptive-level analysis and potential measurement artifacts inherent to IMU data. Future studies applying more sophisticated time-series analysis methods with larger datasets may provide deeper insights into coordination mechanisms.

Keywords:

Dance sport, Rumba, Partnership Dance, Couple Coordination, Inertial Measurement Unit(IMU), Continuous Relative Phase(CRP)

키워드:

댄스스포츠, 룸바, 파트너십 댄스, 커플 협응, 관성센서(IMU), 연속상대위상(CRP)

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