ADLN – PERPUSTAKAAN UNIVERSITAS AIRLANGGA

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TESIS PENGARUH KNEE TO … IFA GERHANAWATI

ABSTRAK

PENGARUH KNEE TO CHEST DAN PELVIC TILTING EXERCISE

TERHADAP FLEKSIBILITAS PUNGGUNG BAWAH PADA PEKERJA

ADMINISTRASI DALAM AKTIVITAS DUDUK LAMA

IFA GERHANAWATI

Pendahuluan : Aktivitas pekerja yang sering duduk lama akan merasakan

kelelahan nyeri di bagian punggung bawah. Hal ini disebabkan karena

penggunaan otot yang berlebih saat tubuh mempertahankan posisi statis dalam

waktu lama. Jika posisi statis ini disertai dengan postur yang salah, maka otot-otot

daerah punggung akan bekerja lebih berat untuk mempertahankan posisi tubuh

agar tetap tegak, akibatnya terjadi stress atau strain pada otot, tendon dan

ligamen. Dengan fleksibilitas dapat membuat tubuh lebih mudah dalam

melakukan suatu gerakan dengan nyaman dan mencegah cedera serta perbaiki

postur. Salah satu latihan gerakan pada William Flexion adalah knee to chest dan

pelvic tilting. Tujuan : membuktikan pengaruh pemberian latihan knee to chest

dan pelvic tilting terhadap fleksibilitas otot punggung bawah pada pekerja

administrasi akibat aktivitas duduk lama. Fleksibilitas punggung bawah di ukur

dengan modified schober test (MST) dan Inclinometer. Metode : penelitian

eksperimental lapangan subyek wanita usia 25-35 tahun. menggunakan rancangan

pre test – post test grup design. Variabel penelitian ini menggunkan variabel

bebas dengan latihan knee to chest dan pelvic tilting, sedangkan variabel terikat

yaitu fleksibilitas lumbal. Hasil : uji bebas kelompok 1 Inclinometer (p=0,007)

MST (p=0,007), Kelompok 2 Inclinometer (p=0,017) MST (p=0,002), Kelompok

3 Inclinometer (p=0,000) MST (p=0,005), uji beda antar kelompok K1-K2

Inclinometer (p=0,516) MST (p=0,600), K1-K3 Inclinometer (p=0,011) MST

(p=0,056), K2-K3 Inclinometer (p=0,003) MST (P=0,014). Kesimpulan : Dari

ketiga kelompok tersebut hasil yang diperoleh bahwa untuk kelompok dengan

latihan kombinasi knee to chest dan pelvic tilting sangat berpengaruh

dibandingkan dengan melakukan salah satu saja latihan gerakan tersebut.

Kata kunci : Fleksibilitas, Inclinometer, modified schober test, latihan knee to

chest dan latihan pelvic tilting exercise

ADLN – PERPUSTAKAAN UNIVERSITAS AIRLANGGA

xv

TESIS PENGARUH KNEE TO … IFA GERHANAWATI

ABSTRACT

THE EFFECTS OF KNEE-TO-CHEST AND PELVIC TILTING EXERCISE ON

LOWER BACK FLEXIBILITY OF ADMINISTRATIVE OFFICERS WHO SIT

FOR A LONG PERIOD

IFA GERHANAWATI

Introduction: Officers who sit for a long time will feel pain on their lower

back. The pain occurs since the back muscles are excessively used when the body

maintains a static position for a long period. If this static position is accompanied

by a wrong posture, the muscles on the back will have to work harder to maintain

the upright position, resulting in stress or strain on the muscles, tendons as well as

ligaments. Back flexibility will make it easier for the body to perform a movement

comfortably, prevent the incoming muscular injury, and improve body posture.

One of the movements on William Flexion Exercise is knee-to-chest and pelvic

tilting. Purpose: in order to prove the effects of knee-to-chest and pelvic tilting on

lower back flexibility of administrative officers who sit for extended period of

time. Lower back flexibility is measured by modified Schober test (MST) and

inclinometer. Method: field experimental research with female subjects of 25-35

years old by pretest-posttest group design. The independent variables of this

research are knee-to-chest movement and pelvic tilting movement, while the

dependent variable is lumbar flexibility. Results: the test of independence results

of group 1 by inclinometer (p=0,007) MST (p=0,007), group 2 inclinometer

(p=0,017) MST (p=0,002), and group 3 Inclinometer (p=0,000) MST (p=0,005).

In the meantime, difference test results of group K1-K2 inclinometer (p=0,516)

MST (p=0,600), group K1-K3 inclinometer (p=0,011) MST (p=0,056), and group

K2-K3 inclinometer (p=0,003) MST (P=0,014). Conclusion: From those three

groups, it is concluded that the third group that combined knee-to-chest movement

with pelvic tilting has better result than the groups which apply single movement.

Key words: Flexibility, inclinometer, modified Schober test, knee-to-chest

exercise and pelvic tilting exercise