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All Journal The Indonesian Journal of Applied Physiotherapy Jurnal Terapi Wicara dan Bahasa
Romadhon, Aditya Johan
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Dentistry Health Professions Medicine & Pharmacology Veterinary

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Pengaruh Biofeedback terhadap Program Peningkatan Kekuatan Otot Romadhon, Aditya Johan; Nugroho, Fendy; Pajar Haryatno
Jurnal Fisioterapi Terapan Indonesia
Publisher : UI Scholars Hub

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Abstract

Background: In sport the muscle fiber composition surely affect athlete performances, selective training technic and using advance technology may improve and set a new standards for athlete optimal performances, technology innovation such as computer simulator has been use to generate realistic match simulation in several sport, but the technology is not cheap that many sport clubs can afford, so biofeedback may become innovation to improve athletes performance by monitoring muscle activation to achieve selective muscle contraction in muscle strengthening programs. Objective: The objective of this study was to evaluate whether auditory feedback as biofeedback can improve muscle activation in a strengthening program. Method: Biofeedback with an auditory feedback electrode placed on the pectoralis muscle pars sternum of 25 subjects in the experimental Group, while they performed a strengthening program and 25 subjects only performed the strengthening program using biofeedback without auditory feedback as controls. The strengthening program was taken for 2 sessions a week for 4 weeks. Result: The collected data showed a mean difference value for the experimental Group was 34.1 ± 14.23 µV and for the control Group was 4.24 ± 12.61 µV, only the experimental Group had a signification value p<0.05. Conclusion: Biofeedback combined with a muscle-strengthening program results in greater muscle activation.
Perbedaan Aktivasi Otot Ekstensor Lumbal pada 3 Posisi Statis Romadhon, Aditya Johan; Nugroho, Fendy; Haryatno, Pajar
Jurnal Terapi Wicara dan Bahasa Vol. 4 No. 1 (2025): Desember 2025
Publisher : Politeknik Kesehatan Kemenkes Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59686/jtwb.v4i1.230

Abstract

Background: Postural control plays a major role in maintaining postural adjustment during daily activities. Calculating body position should be precisely accurate toward gravitational forces to maintain neutral body alignment. Neutral body alignment is influenced by postural muscle activation and kinematics. In static positions, such as standing and sitting, there are different lumbo-pelvic kinematics. Objectives: The purpose of this study was to compare lumbar extensor activation during three static positions: standing, sitting on a chair, and sitting on the floor. Methods: this study uses cross sectional observational method 15 healthy subject was randomly recruited during this observational study, performing three static positions, standing, sitting on a chair and sitting on the floor while Surface Electromyograph (sEMG) placed on erector spine in lumbar segment, we recorded muscle activation on EMG monitor in those three static positions and compared to each static positions. Results: sEMG activation erector spine data in this study showed erector spine muscle activation increased during standing was 12.95 ± 0.94 µV, sitting on a chair was 2.63 ± 0.82 µV and sitting on the floor with mean erector spine activation was 2.63 ± 0.82 µV, in one way ANOVA between and within Group was p < 0.001. Conclusion: erector spine muscle activation during standing are greater than sitting on a chair with mean differences value was 5.6 µV and erector spine muscle activation during sitting on a chair are greater than sitting on the floor with flexed knee with mean differences was 4.62 µV. Keywords: Erector spine activation, Static position, Surface electromyograph, Neutral body alignment
Co-Authors Haryatno, Pajar Nugroho, Fendy Pajar Haryatno