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대한스포츠의학회지 update

The Korean Journal of Sports Medicine

  • : 대한스포츠의학회
  • : 의약학분야  >  기타(의약학)
  • : KCI등재
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  • : 연속간행물
  • : 계간
  • : 1226-3729
  • : 2288-6028
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수록정보
수록범위 : 11권1호(1993)~40권2호(2022) |수록논문 수 : 883
대한스포츠의학회지
40권2호(2022년 06월) 수록논문
최근 권호 논문
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KCI등재

저자 : Jeremy Park , Vera Mcllvain , Jared Rosenberg , Lorin Donovan , Priya Desai , 김준영 ( Joon Young Kim )

발행기관 : 대한스포츠의학회 간행물 : 대한스포츠의학회지 40권 2호 발행 연도 : 2022 페이지 : pp. 67-85 (19 pages)

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In the clinical setting, anabolic agents serve to ameliorate muscle- and bone-wasting diseases. However, many of these anabolic agents are also used by bodybuilders to surpass natural limits of body composition as performance-enhancing drugs (PEDs). The first generation of PEDs comprises testosterone-derived anabolic-androgenic steroids (AAS) which have demonstrated significant myotropic effects. However, AAS lack optimal tissue-selectively and thus, are prone to numerous adverse health consequences. Hence, a newer generation of PEDs, selective androgen receptor modulators (SARMs), was developed with the goal of achieving superior tissue-selectivity (i.e., exerting anabolic effects only in muscle and bone tissue, while minimally affecting other body systems). In general, AAS and SARMs enhance muscle growth primarily through androgen receptor (AR) agonism in target tissues. Despite multiple attempts, no single AAS nor SARM to date is completely risk free. As such, a significant portion of research efforts has been dedicated to manipulating anabolic pathways beyond the AR. Another class of PEDs, myostatin inhibitors, have shown to cause drastic muscle anabolism across multiple species by inhibiting myostatin, the primary deterrent to continuous muscle growth. The myostatin inhibitor, YK-11, blocks myostatin by upregulating its antagonist, follistatin. This effect appears to be mediated through the AR, suggesting a novel and promising gene-selective approach to engineering AR ligands that isolate benefits from risks. At any rate, the exact mechanisms by which these PEDs function is not well understood. Further pioneering regarding these topics is encouraged as it appears that the innovation of a truly tissue-selective anabolic agent is within reach.

KCI등재

저자 : 김현정 ( Hyun Jeong Kim ) , 윤자경 ( Ja Kyung Yoon ) , 김철호 ( Chul-ho Kim ) , 김성호 ( Seong-ho Kim ) , Barry A Franklin , 제세영 ( Sae Young Jae )

발행기관 : 대한스포츠의학회 간행물 : 대한스포츠의학회지 40권 2호 발행 연도 : 2022 페이지 : pp. 86-93 (8 pages)

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Purpose: Although chronotropic incompetence (CI) is common in patients with complex congenital heart disease (CHD) and is associated with adverse cardiovascular outcomes, few data are available regarding modifiable predictors of CI in this escalating patient population. We tested the hypothesis that higher levels of physical activity (PA) are associated with a lower prevalence of CI in patients with complex CHD and evaluated the receiver operating characteristic curve to identify the PA level that best predicted CI.
Methods: We evaluated 111 adolescents with complex CHD. CI was defined as the failure to achieve 80% of the chronotropic response index during peak cardiopulmonary exercise test. Self-reported habitual activity was obtained using a global PA questionnaire.
Results: CI was identified in 45 of the 111 cases (40.5%). After adjusting for potential confounding variables, the high PA group demonstrated a lower odds ratio for having CI (odds ratios, 0.25; 95% confidence interval, 0.06-0.99) compared with the low PA group. The most accurate cut-point for PA to predict the prevalence of CI was 15 metabolic equivalents (METs)-hours/week (areas under the curve, 0.71; 95% confidence interval, 0.61-0.81; sensitivity, 71%; specificity, 69%).
Conclusion: Our findings demonstrate that higher levels of PA are associated with a lower prevalence of CI, independent of potential confounders, and that 15 METs-hours/week of PA provides a cut-point for accurately predicting the presence of CI in adolescents with complex CHD.

KCI등재

저자 : 송문구 ( Munku Song ) , 최승조 ( Seungjo Choi )

발행기관 : 대한스포츠의학회 간행물 : 대한스포츠의학회지 40권 2호 발행 연도 : 2022 페이지 : pp. 94-101 (8 pages)

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Purpose: This study aimed to analyze the injury epidemiology of Korean Basketball League (KBL) players.
Methods: Exposures and injury data were collected from 19 men's professional basketball players of a single team who participated in the 2020- 2021 KBL season. Injury data included injured body parts, injury mechanisms, injury diagnoses, activities, playing positions, and time loss. Injury rates (IRs) were calculated using the athletic exposure (AE) method.
Results: A total of 49 injuries were reported during the study period. The overall IR was 9.13 per 1,000 AEs and 0.11 per 1,000 time exposures (TEs). Competition IR was 23.9 per 1,000 AEs, and it was approximately 3.9 times higher than practice IR (6.1 per 1,000 AEs). Preseason IR was 2.5 times higher than regular season IR (15.5 per 1,000 AEs and 6.2 per 1,000 AEs, respectively). Ankle was the most frequently injured body part (26.5%), followed by trunk and spine (14.3%), knee (12.2%), and lower legs (12.2%). The majority of the competition injury mechanisms were player contact (54.5%). The majority of the practice injury mechanisms were noncontact (37.0%) and overuse (33.3%). Sprain accounted for the largest proportion with 28.6% overall, followed by strain (22.4%), and low back pain (12.2%).
Conclusion: KBL professional basketball players experience higher IR during the regular season than in the preseason. The competition IR was higher than the practice IR during the study period. Lateral ankle sprains were the most commonly reported specific injuries.

KCI등재

저자 : 김준엽 ( Joon Yub Kim ) , 윤지욱 ( Jee Wook Yoon ) , 김경록 ( Kyung-rock Kim ) , 정석원 ( Seok Won Chung ) , 윤종필 ( Jong Pil Yoon )

발행기관 : 대한스포츠의학회 간행물 : 대한스포츠의학회지 40권 2호 발행 연도 : 2022 페이지 : pp. 102-109 (8 pages)

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Purpose: This study aims to verify the preoperative factor that can affect the footprint coverage during arthroscopic rotator cuff repair in full-thickness medium-size cuff tear and the change of footprint coverage on magnetic resonance imaging (MRI) at postoperative 6 months.
Methods: A total of 30 medium-size full-thickness rotator cuff tears were analyzed. They were classified into complete footprint coverage group (CC, n=19) and incomplete footprint coverage group (IC, n=11) by arthroscopic findings and immediate postoperative MRI findings. MRI was performed before the operation, 1 day after the operation, and 6 months after the operation. Preoperative MRI evaluated the size of the anteroposterior tear width (cm), length of retraction (cm), fatty infiltration, and muscle atrophy. Postoperatively, footprint coverage, fatty degeneration, and muscle atrophy were evaluated. We compared healing and change of fatty degeneration between two groups.
Results: The healing rate was significantly increased in the CC group (complete/partial healing, 10/9) compared to the IC group (complete/partial healing, 6/5) (p< 0.001). Six of 11 partial coverages (54.5%) were even improved to complete coverage at postoperative 6-month follow-up. However, the difference in footprint coverage did not affect the change of fatty degeneration at postoperative 6 months. Any change of fatty degeneration (FD) and initial FD of rotator cuff tendons were not correlated with healing (p< 0.05).
Conclusion: The footprint coverage can be changed in postoperative 6 months in MRI and anteroposterior tear size, retraction, fat degeneration, and muscle atrophy do not affect footprint coverage in medium-sized full-thickness rotator cuff tears.

KCI등재

저자 : 전형규 ( Hyung Gyu Jeon ) , 이인제 ( Inje Lee ) , 이세용 ( Sae Yong Lee )

발행기관 : 대한스포츠의학회 간행물 : 대한스포츠의학회지 40권 2호 발행 연도 : 2022 페이지 : pp. 110-119 (10 pages)

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Purpose: Although postural control assessment in patients with chronic ankle instability (CAI) has been thoroughly examined in the literature, few researchers have studied balance strategy in lateral ankle sprain (LAS) copers, who recover from LAS injury with no symptom progression. The purpose of this study was to investigate the difference in center of pressure (COP) variables during static and dynamic posture control among LAS copers, patients with CAI, and ankle healthy controls.
Methods: This case-control study recruited 20 patients with CAI, 20 LAS copers, and 20 controls. All participants filled out Ankle Instability Instrument and Foot and Ankle Ability Measure questionnaire and performed single-leg static postural control and Star Excursion Balance Test (SEBT).
Results: LAS copers showed less mediolateral COP range as compared to patients with CAI (p=0.001) and control (p=0.001) during static postural control. Furthermore, LAS copers have less anteroposterior COP standard deviation (SD) (p=0.034), range (p=0.009), velocity (p=0.013) than patients with CAI. Relative to patients with CAI, LAS copers had small mediolateral COP SD (p=0.022) and range (p=0.018) during the posteromedial direction of the SEBT. However, there was no significant difference in both mediolateral and anteroposterior COP variables during anterior and posterolateral directions of the SEBT (p≥ 0.05).
Conclusion: Based on these observed results, the authors conclude that greater postural control in LAS copers is one of the movement strategies to prevent recurrent LAS as a defense mechanism.

KCI등재

저자 : 박두용 ( Dooyong Park ) , 김연수 ( Yeonsoo Kim )

발행기관 : 대한스포츠의학회 간행물 : 대한스포츠의학회지 40권 2호 발행 연도 : 2022 페이지 : pp. 120-127 (8 pages)

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Purpose: This study aimed to investigate the association between relative muscle strength and serum hemoglobin levels.
Methods: In this study, 3,234 adults living in rural areas were surveyed from 2007 to 2014 and the data was analyzed on 1,987 adults. Anemia (< 12 g/dL for women and < 13 g/dL for men) was defined by examining serum hemoglobin concentration. Muscle strength was measured by using Takei dynamometer about grip strength and leg strength. To identify the association between relative strength and anemia, odds ratio (OR) and 95% confidence interval (CI) were calculated using logistic regression analysis (p< 0.05).
Results: As confounding variables were adjusted, relative leg strength (high level: OR, 0.55; 95% CI, 0.34- 0.88) and relative grip strength (middle level: OR, 0.57; 95% CI, 0.37- 0.88; high level: OR, 0.50; 95% CI, 0.30- 0.84) were associated with OR of anemia risk. Relative grip strengths were significantly associated with risk of anemia in the ≥ 65-year age group (middle level: OR, 0.43; 95% CI, 0.23- 0.78; high level: OR, 0.32; 95% CI, 0.14- 0.72), but not in the < 65-year age group. Also, ≥ 65-year age group, who have both high relative grip strength and high relative leg strength (OR, 0.44; 95% CI, 0.21- 0.93) or only high relative grip strength (OR, 0.41; 95% CI, 0.18- 0.96), was only significantly associated with the prevalence of anemia.
Conclusion: Improvement of relative muscle strength is a key factor that can lower the risk of anemia and it is recommended in order to reduce the health risk of elderly life.

KCI등재

저자 : 송문구 ( Munku Song ) , 강현식 ( Hyunsik Kang ) , 이인환 ( Inhwan Lee )

발행기관 : 대한스포츠의학회 간행물 : 대한스포츠의학회지 40권 2호 발행 연도 : 2022 페이지 : pp. 128-137 (10 pages)

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Purpose: This study compared isokinetic knee strength profiles by knee surgery history in basketball players.
Methods: A total of 17 professional female basketball players (age, 23.7±3.8 years) participated in this study. All the participants performed maximal isokinetic knee strength test concentrically at a velocity of 60°ㆍsec-1 and 180°ㆍsec-1. Strength variables included peak torque (PT), body mass normalized PT (NPT), bilateral strength difference (BD), hamstrings to quadriceps strength (H/Q) ratio. Independent t-test and one-way analysis of variance were used to compare mean differences in the measured parameters by knee surgery history and limb-based sugroups, respectively.
Results: Nine subjects had a history of knee surgery. At all velocities, there were no significant group differences in PTs, NPTs, BDs, and H/Q ratios of the knee extensor and flexor muscles by knee surgery history. Overall, NPTs of knee extensor and flexor muscles were 2.91-3.01 Nㆍmㆍkg-1 and 1.55-1.59 Nㆍmㆍkg-1, respectively, and H/Q ratios ranged from 52% to 55%. At 180°ㆍ sec-1. NPTs of knee extensor and flexor muscles were 1.90-1.92 Nㆍmㆍkg-1 and 1.08-1.10 Nㆍmㆍkg-1, respectively, and H/Q ratios ranged from 57% to 58%.
Conclusion: The current findings suggested that isokinetic knee strength profiles measured at 60°ㆍsec-1 and 180°ㆍsec-1 velocities were similar regardless of a history of knee surgery in the professional female basketball players.

KCI등재

저자 : 경민규 ( Min Gyu Kyung ) , 김정길 ( Jeong-gil Kim )

발행기관 : 대한스포츠의학회 간행물 : 대한스포츠의학회지 40권 2호 발행 연도 : 2022 페이지 : pp. 138-141 (4 pages)

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Although osteochondral lesions are well-described in previous literature, lesions located at the proximal phalangeal base of the hallux are extremely rare. Here, the authors report the case of a 21-year-old male who presented with chronic right great toe pain, which was eventually diagnosed as an osteochondral lesion at the proximal phalangeal base of the hallux. The diagnosis presented herein should be kept in mind and included in the differential diagnosis when patients complain of chronic pain in the great toe.

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