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Phys Ther Sport. 2017 Jul;26:13-19. doi: 10.1016/j.ptsp.2017.04.001. Epub 2017 Apr 4.

Stretching position can affect levator scapular muscle activity, length, and cervical range of motion in people with a shortened levator scapulae.

Author information

1
Movement Science Program, Program in Physical Therapy, Washington University School of Medicine, 4444 Forest Park Ave., Suite 1101 St. Louis, MO 63108-2212, United States. Electronic address: phyot@naver.com.
2
Applied Kinesiology and Ergonomic Technology Laboratory, Department of Physical Therapy, The Graduate School, Yonsei University, Baekwoon-kwan, 1 Yonseidae-gil, Wonju, Gangwon-do, Republic of Korea. Electronic address: cynn@yonsei.ac.kr.
3
Department of Physical Therapy, College of Health Science, Yonsei University, Baekwoon-kwan, 1 Yonseidae-gil, Wonju, Gangwon-do, Republic of Korea. Electronic address: pteagle@yonsei.ac.kr.
4
Department of Physical Therapy, Hoseo University, Art and Technology Building, 79 Hoseoro, Asan, Chungnam, Republic of Korea. Electronic address: jyoon@hoseo.edu.
5
Applied Kinesiology and Ergonomic Technology Laboratory, Department of Physical Therapy, The Graduate School, Yonsei University, Baekwoon-kwan, 1 Yonseidae-gil, Wonju, Gangwon-do, Republic of Korea. Electronic address: jihyun.lee@yonsei.ac.kr.
6
Department of Physical Therapy, College of Health Science, Cheongju University, 298 Daeseongro, Sangdang-gu, Cheongju, Chungbuk, Republic of Korea. Electronic address: free0829@gmail.com.
7
Applied Kinesiology and Ergonomic Technology Laboratory, Department of Physical Therapy, The Graduate School, Yonsei University, Baekwoon-kwan, 1 Yonseidae-gil, Wonju, Gangwon-do, Republic of Korea. Electronic address: saminchu@naver.com.

Abstract

OBJECTIVES:

Levator scapulae (LS) muscle stretching exercises are a common method of lengthening a shortened muscle; however, the appropriate stretching position for lengthening the LS in people with a shortened LS remains unclear. The purpose of this study was to compare the effects of different stretching exercise positions on the LS and introduce effective stretching exercise methods to clinicians.

PARTICIPANTS:

Twenty-four university students (12 men, 12 women) with a shortened LS were recruited.

METHODS:

LS muscle activity, LS index (LSI), and cervical range of motion (ROM) were measured pre (baseline) and post three different stretching exercise positions (sitting, quadruped, and prone).

RESULTS:

The LSI and cervical ROM exceeded the minimal detectable change and had significant changes. The LSI was greater in the sitting position than at the baseline (p = 0.01), quadruped position (p < 0.01); the LSI in the prone position presented a higher increase than the quadruped position (p = 0.01). The cervical ROM increased in the sitting position when compared to the baseline (p < 0.01) and quadruped position (p < 0.01).

CONCLUSIONS:

Stretching the LS in the sitting position was the most effective exercise for improving LS muscle length and cervical ROM.

KEYWORDS:

Electromyography; Levator scapulae; Muscle stretching exercises; Neck

PMID:
28578252
DOI:
10.1016/j.ptsp.2017.04.001
[Indexed for MEDLINE]

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