• 한국운동역학회지
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• 제19권2호
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• pp.265-272
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• 2009

발목 테이핑은 상해 예방을 위해 임상적으로 이용되어 질 수 있는 보조적 수단으로 여겨지고 있다. 그러나 그동안의 연구들을 살펴보면 발목 자체에 대한 부분만을 언급하였다. 본 연구의 목적은 발목 테이핑의 적용이 기능적 발목 불안정성을 가진 선수들에게서 점프 후 착지 시에 하지 관절에 미치는 영향을 알아보는데 있다. 점프의 거리는 각 대상자 키의 50%로 결정하였으며 높이는 각 대상자 키의 20%로 결정하였다. VICON을 이용하여 하지관절의 데이터를 수집하였고, 점프 착지 동안 시상면, 관상면, 수평면의 관절 움직임의 변화를 측정하였다. 테이핑은 통계적으로 시상면에서 착지순간 저측 굴곡과 최대 저측 굴곡을 제한하는 효과가 있었으며, 반면에 착지순간 무릎 굴곡과 최대 무릎 굴곡, 착지순간 엉덩 굴곡과 최대 엉덩 굴곡을 통계적으로 유의하게 증가시키는 효과가 있었으며, 관상면에서는 최대 발목 내번, 착지순간 무릎 외반과 최대 무릎 외반, 최대 엉덩 외전을 감소시키는 효과가 있었고, 수평면에서는 최대 발목 외전, 최대 엉덩 내회전의 감소를 보였다. 발목 테이핑은 발목 관절 운동범위의 제한과 함께 무릎 관절이나 엉덩 관절에 영향을 미치는 것으로 나타났다.

• 한국운동역학회지
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• 제31권4호
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• pp.241-248
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• 2021

Objective: The purpose of this study was to investigate the difference in muscle strength, kinematics, and kinetics between injured and non-injured sides of the leg after Achilles Tendon Rupture surgery during walking and running. Method: The subjects (n=11; age = 30.63 ± 5.69 yrs; height = 172.00 ± 4.47 cm; mass = 77.00 ± 11.34 kg; time lapse from surgery = 29.81 ± 10.27 months) who experienced Achilles Tendon Rupture (ATR) surgery participated in this study. The walking and running trials were collected using infrared cameras (Oqus 300, Qualisys, Sweden, 100 Hz) on instrumented treadmill (Bertec, U.S.A., 1,000 Hz) and analyzed by using QTM (Qualisys Track Manager Ver. 2.15; Qualisys, U.S.A). The measured data were processed using Visual 3D (C-motion Inc., U.S.A.). The cutoff frequencies were set as 6 Hz and 12 Hz for walking and running kinematics respectively, while 100 Hz was used for force plate data. Results: In ATR group, muscle strength there were no difference between affected and unaffected sides (p> .05). In kinematic analysis, subjects showed greater ROM of knee joint flexion-extension in affected side compared to that of unaffected side during walking while smaller ROM of ankle dorsi-plantar and peak knee flexion were observed during running (p< .05). In kinetic analysis, subjects showed lower knee extension moment (running at 2.2 m/s) and positive ankle plantar-flexion power (running at 2.2 m/s, 3.3 m/s) in affected side compared to that of unaffected side (p< .05). This lower positive ankle joint power during a propulsive phase of running is related to slower ankle joint velocity in affected side of the subjects (p< .05). Conclusion: This study aimed to investigate the functional evaluation of the individuals after Achilles tendon rupture surgery through biomechanical analysis during walking and running trials. Based on the findings, greater reduction in dynamic joint function (i.e. lower positive ankle joint power) was found in the affected side of the leg compared to the unaffected side during running while there were no meaningful differences in ankle muscle strength and walking biomechanics. Therefore, before returning to daily life and sports activities, biomechanical analysis using more dynamic movements such as running and jumping trials followed by current clinical evaluations would be helpful in preventing Achilles tendon re-rupture or secondary injury.

• 한국학교ㆍ지역보건교육학회지
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• 제10권2호
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• pp.29-42
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• 2009

연구목적: 본 연구는 고교운동선수들의 스포츠상해(부상)현황 파악을 통한 사고 및 손상예방을 목적으로 개발된 손상감시프로그램을 설명하고, 1년간 수집된 자료를 보고하기 위하여 수행되었다. 연구방법: 본 연구는 미국 플로리다주 내의 10개 고등학교에 재학 중인 학생 운동선수들의 스포츠상해(부상)에 대한 세부내용(사고경위, 상해부위, 사고 당시 환경적 요소 등)을 수집하여 이루어졌다. 학생 운동선수들에게 발생한 스포츠상해 조사 및 보고는 2007년에서 2008년에 걸친 학기동안 각 학교에 배치된 운동트레이너(Certified Athletic Trainer)에 의해 이루어졌다. 연구결과: 조사기간 동안 10개 조사대상 고등학교에서 614건의 스포츠상해가 발생하였고, 연습 중 사고노출 비율(1,000회의 연습 중 1명의 선수가 상해를 입는 경우를 기준으로 함)에 있어서는 풋볼(Football)이 2.73을 기록해 가장 높은 상해율을 보였으며 여자축구(2.03)와 남자농구(1.67)가 그 뒤를 이었다. 실전경기 중 사고노출 비율(1,000회의 실전경기당 1명의 선수가 상해를 입는 경우를 기준으로 함)의 경우, 풋볼(Football)이 14.4, 여자농구가 9.96, 레슬링이 7.1을 기록하였다. 운동상해로 인한 증상은 염좌/삠(관절손상)이 가장 많았고, 가장 많이 다치는 신체부위는 발목, 무릎, 머리인 것으로 나타났다.

• Journal of Acupuncture Research
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• 제30권1호
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• pp.35-41
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• 2013

Objectives : This study aimed to perform descriptive analysis on demographic characteristics and symptom distribution of 199 marathon participants in Pusan, Korea. Methods : Brief medical charts of 199 marathon participants in 11 marathon rallies who had visited the emergency medical support team of Korean Medicine Hospital, Pusan National University were collected. Participants' demographic and clinical characteristics were descriptively analyzed. Results : More than two third of participants who have visited the support team was male(71.9 %) and their mean age was 44.0(years). The main intervention was manual acupuncture with vigorous stimulation techniques. Most of treated symptoms were lower extremity pain(77.0 %). Knee pain was the most frequently recorded symptoms, following the ankle pain. No information on the safety of acupuncture treatments were reported in the records. Conclusions : Symptom distribution of marathon participants who have visited the emergency medical support team of Korean Medicine Hospital was similar to previous literatures of acute injuries of marathon athletes and runners. The role of acupuncture for emergency support care of acute injuries in marathon participants should be further explored in well-designed clinical studies.

• 아시안잔디학회지
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• 제21권2호
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• pp.127-135
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• 2007

Korea and Japan hosted the FIFA World Cup Soccer Game in 2002. Ten stadiums had been built and more than 30 soccer grounds for practice were renovated in Korea. Sport fields in both countries had problems on cool-season turfgrass growth and quality by summer decline during humid and warm climate especially followed by intensive uses. We measured the effects of air-flow system, which is designed to optimize rootzone soil gas and moisture levels to promote the growth and maintenance turfgrass. This experiment was carried out to verify the effects of the system on soil gas exchange, ground resilience, and turfgrass recovery in turfgrass rootzone. Within 1 or 2hr of operation of the system, rootzone soil gas ($CO_2$, $O_2$) levels returned to natural atmospheric levels completely Soil $CO_2$ levels began to decrease within the first 10 min of operation of the system. The levels were reduced from 1.3 to 0.06% after 30 min, and natural atmospheric levels within 1 hr. When the system was turned off, $CO_2$ levels increased to 0.36% and 0.7% after 5 and 20 hr, respectively. The application of the system did not affect the resilience of turf surface after traffic treatments. Higher traffic treatment resulted in higher surface resilience especially in zoysiagrass plots. Operation of the system had a significant beneficial impact on turf recovery by increased root dry wight and improved turf quality, as compared with the non-operated check plots.

• The Journal of Korean Physical Therapy
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• 제31권2호
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• pp.129-133
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• 2019

Purpose: This study aimed to investigate effect of ankle instability on peripheral muscle activation among female ballet dancers to provide information on the development of prevention programs for ankle injury rehabilitation. Methods: 32 female ballet dancers were randomly divided into two groups: experience ankle sprain group (n=16, age, $20.7{\pm}0.8years$, BMI $18.6{\pm}1.2kg/m2$) and non-experience ankle sprain group (n=16, $age=21.0{\pm}0.8years$, BMI $19.6{\pm}2.0kg/m2$). Activation of the peroneus longus, tibialis anterior muscle, and gastrocnemius during vertical landing, half pointe, and gait between the two groups were measured. Body composition analyzer was used to examine skeletal muscle mass and body fat mass. Results: A total of 32 patients were included. In the experience ankle sprain group (n=16: left sprain 14, right sprain 2), average ankle sprain injury occurred 7.5 months before the study. The average age of the dancers in the experience ankle sprain group and non-experience ankle sprain group was $20.7{\pm}0.8$ and $21.0{\pm}0.8years$, major period was $64.5{\pm}23.8$ and $71.6{\pm}25.8months$, BMI was $18.6{\pm}1.2$ and $19.5{\pm}2.0kg/m2$, respectively. No significant differences were found on body composition between the two groups (p>0.05). The experience ankle sprain group showed significantly lower tibialis anterior and peroneus longus muscle activation (p<0.5), while gastrocnemius muscle activation appeared to be significantly higher (p<0.05) during landing, half pointe, and normal gait. Conclusion: Ankle sprain can cause a decline in peripheral muscle activation and coordination, which increased the risk for repetitive ankle sprain in the future. Moreover, ankle peripheral muscle selective strength training, coordination program development, and application need to be considered to prevent ankle sprain.

• Journal of Sport and Applied Science
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• 제7권2호
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• pp.1-12
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• 2023

Purpose: The purpose of this study was to investigate the possibility of modified swing to prevent shoulder injury by analyzing differences in the muscle activation patterns of upper limb by the swing method in wheelchair badminton players. Research design, data, and methodology: 10 wheelchair badminton players participated in the experiment as subjects and performed 10 high clears and 10 smashes in both traditional and modified swing methods toward a shuttlecock hung at the height of racket impact point. For each trial, activation patterns of biceps brachii, triceps brachii, anterior deltoid, and posterior deltoid were measured from the upper limb participating in the swing from which the duration, peak, and root mean square (RMS) of electromyography (EMG) activities from swing initiation to shuttle impact were calculated. The maximum swing velocity of the smash and the distance of the high clear were also measured with both methods to compare differences in the swing velocity and shuttle hit distance. Results: Differences in the EMG peak and RMS of the anterior deltoid by swing methods were shown to differ by the skill type, being higher in the traditional swing method than the modified during only the high clear. The EMG peak and RMS, and the duration of the posterior deltoid were higher and longer with the traditional swing method than the modified during both the smash and high clear. The intensities of the biceps brachii and triceps brachii activities measured during the smash and high clear were higher in the traditional swing method than the modified, and the biceps brachii and triceps activity durations during the high clear were shorter in the modified swing method than the traditional. The maximum swing velocity of the smash was faster with the traditional swing method than the modified, while the distance of the high clear did not differ significantly. Conclusions: These results suggest that the modified swing can be an effective performance method for preventing shoulder injuries without undue loss of impact power in wheelchair badminton players by reducing excessive loads imposed on the shoulder and allowing the optimal use of the elbow extension.

• The Journal of Korean Physical Therapy
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• 제28권5호
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• pp.279-285
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• 2016

Purpose: This study was conducted to investigate the effects of joint mobilization and kinesio taping on pain, range of motion and knee function in patients with knee osteoarthritis. Methods: Thirty subjects were selected and divided into three groups: group 1 was treated with joint mobilization, group 2 was treated with kinesio taping and group 3 was treated with joint mobilization and kinesio taping. Joint mobilization was performed for 20 minutes three times a week for a period of 4 weeks, after which tape was applied for the same period of time and it was not exceeded 24 hours. Pain, range of motion and knee function were then assessed to identify the effectiveness. A visual analog scale (VAS) was used for pain assessment, while active and passive range of motion (AROM, PROM) were assessed using smart phones application, and knee injury and osteoarthritis outcome score (KOOS) was used to assess knee function. Results: After intervention, the joint mobilization group and kinesio taping group showed significant improvements in VAS, AROM, PROM and KOOS (Symptom, Pain, ADL, QOL), whereas no significant difference was found in sport/recreation. The joint mobilization with kinesio taping group showed significant improvements in all items, and a significant increase was found in AROM and PROM compared to the other two groups. Conclusion: We found that joint mobilization and kinesio taping effectively improved pain, range of motion and knee function in patients with knee osteoarthritis, but that application of joint mobilization with kinesio taping was most effective.

• Advances in nano research
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• 제14권6호
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• pp.591-602
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• 2023

In the present study, capability of nanobiotics in repairing tendon injuries commonly occur in Taekwondo sport is investigated and some approaches are proposed. In this regard, a brief review on the types and application of nanobiotics is presented. Their capabilities and limitation are discussed. Next, different type of tendon injuries in Taekwondo athletes are discussed along with their treatment approaches. Based on the presented data, a nano-scale feasible robot model carrying nanobiotics is proposed for repairing tendons. Finite element simulations is also conducted to show the effectiveness of the repairing process using nanorobots equipped with nanobiotics. This repairing procedure is a combination of mechanical and chemical treatments. The results indicated that using nanobiotics on nanorobots arms in the repair of tendon injuries has many benefits. First, drug delivery is directly injected to the target section. Second, Due to the nanorobots small sizes more acute treatment is possible. Finally, since the control of the nanorobots are assisted with computers, the possibility of human error reduces significantly. The proposed method of the present study could be utilized by other scientists and technological industry in developing final nanorobots with nanobiotics carrying capacity.

• 대한정형외과스포츠의학회지
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• 제8권2호
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• pp.95-101
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• 2009

목적: 전방 십자 인대 재건술을 시행한 환자에서 수상 전 스포츠 활동으로의 복귀 정도와 관여 인자를 알아보았다. 대상 및 방법: 2003년 9월부터 단일 다발 전방십자인대 재건술을 시행받은 109명의 환자 중 스포츠 손상으로 2년 이상 추시 가능한 43예를 대상으로 수상 전 스포츠 활동으로의 복귀 여부를 조사하였다. 평균 나이는 26세(17~45세)였고, 추시 기간은 평균 31.2 개월(24~53개월)이었다. 수술 전과 최종 추시에서의 임상적 결과는 Lysholm 점수, Tegner 활동 수준 척도, 객관적 및 주관적 International Knee Documentation Committee questionnaires (IKDC 평가표), KT-1000 관절계를 이용하여 평가하였다. 결과: 임상적 결과는 술 전에 비해 최종 추시에서 모두 유의하게 호전되었다(P<0.001). 43예 중 25예(58%)는 수상 전 운동으로 복귀하였으나 18예(42%)는 복귀에 실패하였다. 복귀에 실패한 환자에서 11예(61%)는 재부상에 대한 두려움, 나머지 7예(39%)는 불안정과 통증을 이유로 복귀하지 못하였다. ANOVA test상 세 환자 군의 Lysholm 점수, 주관적 IKDC 평가표, 및 KT-1000 검사에서 통계적으로 유의하였다(P<0.001). 그러나 수상 전 스포츠 활동으로 복귀한 군과 재부상에 대한 두려움 때문에 복귀하지 못한 두 군에서는 Lysholm점수와 KT-1000 검사 상 유의한 차이가 없음에도 불구하고 Tegner 활동 수준, 주관적 IKDC 평가표에서 유의한 차이를 보였다(P<0.001). 결론: 스포츠 손상으로 전방십자인대 재건술을 받은 환자들 중 약 25%에서 재손상에 대한 두려움으로 인해 수상 전 스포츠 활동으로 복귀하지 못했다. 전방십자인대 재건술의 성공적인 결과를 위해서는 재건술 술기 향상과 체계적인 재활 방법이 여전히 요구되지만 심리적인 요인에 대한 고려 역시 필요할 것으로 생각된다.