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Pengaruh Latihan Lari Sprint 50m terhadap Peningkatan Speed dan Power Tendangan Dollyo Chagi pada Atlet Taekwondo Tsania, Tamara; Utomo, Dwikora Novembri; Abdurrachman, Abdurrachman; Tinduh, Damayanti
Majalah Kedokteran Indonesia Vol 72 No 1 (2022): Journal of The Indonesian Medical Association - Majalah Kedokteran Indonesia, Vo
Publisher : PENGURUS BESAR IKATAN DOKTER INDONESIA (PB IDI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47830/jinma-vol.72.1-2022-560

Abstract

Introduction: Several training techniques are used to improve the performance of taekwondo athletes, one of which is sprint running. Sprinting is one of the branches of athletic sports which requires strength, muscle power, agility and speed. Dollyo chagi kicks is most often used both in attack and defense in taekwondo competition. To be a profesional athlete, they must have sport components such as muscle strengh, muscle power, speed, flexibility, agility, and endurance. The winner of the taekwondo competition is determined by the number of points earned. The author choose the speed an power of dollyo chagi because it is reliable to get points taekwondo matches.Methods: This is a quasi-experimental study with one-group pre-test and post-test design. Using purposive sampling techniques, seventeen junior taekwondo athletes (9 males and 8 female) were recruited. The athletes were trained with 50-meter sprint run for 4 weeks with intensity of 3 sets and 4 times a week. Result: Speed of dollyo chagi kicks increase significantly 17.74% (p less than 0.05) and power of dollyo chagi kicks increase significantly 23.06% (p less than 0.05). Conclusion: 50m sprint training can increase the speed and power of dollyo chagi kicks in taekwondo athletes.
Intraarticular Allogenic Mesenchymal Stem Cells and Vascular Endothelial Growth Factor Injection in Anterior Cruciate Ligament Reconstruction Utomo, Dwikora Novembri; Mahyudin, Ferdiansyah; Zulkarnain, Arif; Purwati, Purwati; Setyawati, Rossy
Folia Medica Indonesiana Vol. 56, No. 1
Publisher : Folia Medica Indonesiana

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Abstract

Graft tunnel healing is important for the successful reconstruction of the anterior cruciate ligament by using the hamstring tendon autograft. There are studies that intra graft tunnel Bone Marrow Mesenchymal stem cells (BMSCs) or intra graft tunnel Vascular endothelial growth factor (VEGF) accelerated graft tunnel healing. This study aimed to investigate the effect of using BMSCs+VEGF injected intra-articular on graft tunnel healing. We reconstructed the anterior cruciate ligament (ACL) of 12 rabbits using an autograft hamstring tendon with and without intra-articular BMSCs+VEGF. Histological evaluation was done at 3 and 6 weeks after ACL reconstruction. On the surface between the graft and the bone tunnel obtained collagen fiber thickness or Sharpey fiber is significantly more than the control group (p< 0.05) in the evaluation of 3 weeks and 6 weeks either side of the tibia and the femur. To evaluate the progression of the treatment, treatment group and control group gained progression had significantly when compared to 3 weeks and 6 weeks. It can be concluded that intra-articular injection of VEGF+BMSCs can accelerate the integration of the graft tunnel from histology evaluation on 3 and 6 weeks.