JER [Journal of Exercise Rehabilitation]

간행물 정보
  • 자료유형
  • 발행기관
    한국운동재활학회 [Korean Society of Exercise Rehabilitation]
  • ISSN
  • 간기
  • 수록기간
  • 등재여부
  • 주제분류
    의약학 > 재활의학
  • 십진분류
    KDC 514.03 DDC 617.03
Vol.12 No.2 (10건)



Exercise addiction and rehabilitation

Yong-Seok Jee

한국운동재활학회 JER Vol.12 No.2 2016.04 pp.67-68

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Original Article


Aqueous extract of Cordyceps alleviates cerebral ischemia-induced short-term memory impairment in gerbils

Sang-Hak Lee, Il-Gyu Ko, Sung-Eun Kim, Lakkyong Hwang, Jun-Jang Jin, Hyun-Hee Choi, Chang-Ju Kim

한국운동재활학회 JER Vol.12 No.2 2016.04 pp.69-78

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Cerebral ischemia is caused by reduced cerebral blood flow due to a transient or permanent cerebral artery occlusion. Ischemic injury in the brain leads to neuronal cell death, and eventually causes neurological impairments. Cordyceps, the name given to the fungi on insects, has abundant useful natural products with various biological activities. Cordyceps is known to have nephroprotective, hepatoprotective, an-ti-inflammatory, antioxidative, and antiapoptotic effects. We investigat-ed the effects of Cordyceps on short-term memory, neuronal apoptosis, and cell proliferation in the hippocampal dentate gyrus following tran-sient global ischemia in gerbils. For this study, a step-down avoidance test, terminal deoxynucleotidyl transferase-mediated dUTP nick end label-ing assay, immunohistochemistry for caspase-3 and 5-bromo-2’-de-oxyu-ridine, and western blot for Bax, Bcl-2, brain-derived neurotrophic fac-tor (BDNF), and tyrosin kinase B were performed. In the present study, Cordyceps alleviated cerebral ischemia-induced short-term memory impairment. Cordyceps showed therapeutic effects through inhibiting cerebral ischemia- induced apoptosis in the hippocampus. Cordyceps suppressed cerebral ischemia-induced cell proliferation in the hippo-campal dentate gyrus due to the reduced apoptotic neuronal cell death. Cordyceps treatment also enhanced BDNF and TrkB expressions in the hippocampus of ischemic gerbils. It can be suggested that Cordyceps overcomes cerebral ischemia-induced neuronal apoptosis, thus facili-tates recovery following cerebral ischemia injury.



Effect of previous strength training episode and retraining on facilitation of skeletal muscle hypertrophy and contractile properties after long-term detraining in rats

Sukho Lee, Kwang-Seok Hong, Kijeong Kim

한국운동재활학회 JER Vol.12 No.2 2016.04 pp.79-82

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In the present study, we investigated the effects of previous strength training and retraining following long-term cessation of exercise on muscle mass and contractile properties. Female Sprague-Dawley rats (n=24) aged eight weeks were randomly assigned one of the four groups: control (CON), detraining (DT), training (TR), and retraining (RT). The training regimen consisted of climbing ladder 5×3 sets, once every third day for eight weeks with weight attached to the tail. The weight carried during each training session was initially 50% of body weight and progressively increased by 10% per session. The rats in DT were detained for 20 weeks followed by eight weeks strength training. The rats in the both TR and RT groups underwent eight weeks training. DT was age matched new training group while RT was retraining group af-ter 20 weeks of detraining. Soleus, gastrocnemius, tibialis anterior, and flexor hallucis longus (FHL) muscles were harvested in order to mea-sure the weight, and in situ contractile properties of FHL were mea-sured including specific twitch tension (Spt) and specific tetanic tension (Spo). TR showed significant increase in muscle mass compared to CON (P<0.05). DT and RT showed significant increase in muscle mass when compared to all other groups (P<0.05). There was no statistical difference in Spt and Spo among the groups. The present study showed that previous strength training facilitates retraining-induced muscle hy-pertrophy following long-term cessation of exercise.



Injury profile among elite male youth soccer players in a Swedish first league

Tania Nilsson, Anna Hafsteinsson Östenberg, Marie Alricsson

한국운동재활학회 JER Vol.12 No.2 2016.04 pp.83-89

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This study investigated the injury profile among elite male youth soccer players in a Swedish first league during two seasons. The present co-hort study is based on data collected during the 2013–2014 seasons. In total, 43 young elite male soccer players, aged 15 to 19 yr, were pro-spectively followed regarding injuries, time of exposure, injury location, type of injury, and injury severity. The overall incidence of injury in the present study was estimated to 6.8 injuries per 1,000 exposure hours and 15.5 and 5.6 injuries per 1,000 hr for matches and training, respec-tively. The single most common injury subtype was muscle strain (53%). The hip and groin were the most common locations for injuries. Thir-ty-one percent of the injuries were classified as severe injury and caused >28 days absence from training and match play. Both the injury incidence and the number of serious injury seems to be relatively high in youth elite players according to this study. Although the injury inci-dence seems to be slightly lower than in adult elite players the injuries seem to be more traumatic in youth elite players.



Effect of 24-week repeated short-time walking based training program on physical fitness of black Cameroonian obese women

Wiliam R. Guessogo, Abdou Temfemo, Samuel H. Mandengue, Peguy B. Assomo Ndemba, Regine T. Messina Ondoua, André Hamadou, Laurent S. Etoundi-Ngoa, Said Ahmaidi

한국운동재활학회 JER Vol.12 No.2 2016.04 pp.90-98

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This study aimed to examine the effects of a training program based on repetition of short-time walk sequences on cardiorespiratory response, physical performance and metabolic parameters in black Cameroonian obese women. One hundred thirty-nine obese women (body mass in-dex [BMI]>30 kg/m2) were divided into three groups: premenopausal (Pre-M; 39.7±7.9 yr; n=48), postmenopausal (Post-M; 55.0±2.5 yr; n=61) and control group (CONT; 48.7±9.4 yr; n=30). Only Pre-M and Post-M completed 24-week repeated short-time walking program. An-thropometric, cardiorespiratory, metabolic parameters, and the 6-min walk distance (6MWD) were measured at baseline (S1), 12 weeks fol-low-up (S2), and 2 days after the last session (S3). Significant changes were observed in weight, BMI, fatty mass and 6MWD in Pre-M and Post-M after 24 weeks. The waist and hip circumferences, percentages of water, muscle mass and bone mass changed in Post-M. Total cho-lesterol, triglycerides, low density lipoprotein and forced expiratory vol-umes in 1 and 6 sec showed significant improvements in Pre-M and Post-M. High density lipoprotein increased only in Post-M (0.5±0.2 g/L vs 0.7±0.1 g/L, P=0.041). In conclusion, this training modality could con-stitute an option for obese women rehabilitation.



Analysis of ipsilateral and bilateral ratios in male amateur golfers

Jae-Yoon Song, Jae-Wan Park, Chan-Bok Lee, Denny Eun, Jung-Hoon Jang, Ho-Jin Lee, Gwang-Suk Hyun, Jung-Min Park, Jun-Youl Cha, Nam-Heung Cho, Il-Gyu Ko, Jun-Jang Jin, Yong-Yun Jin, Do-Woong Ham, Yong-Seok Jee

한국운동재활학회 JER Vol.12 No.2 2016.04 pp.99-108

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The number of injuries that force golfers to quit is also increasing. In particular, the upper body injuries are concerns for amateur golfers. This study was conducted not only to investigate muscular balance, such as ipsilateral and bilateral ratios of the upper body, but to also evaluate the possible problems of muscular joints in amateur golfers. Male golfers (n=10) and a healthy control group (n=10) were recruited for the assessment of muscular function in the upper body, which was measured by an isokinetic dynamometer at 60°/sec. The tested parts were trunk, wrist, forearm, elbow, and shoulder joints. Mann–Whitney U-test was used to evaluate the significance of the differences be-tween groups. The ipsilateral ratios of peak torque or work per repeti-tion (WR) of trunk flexor and extensor in the golfers were not signifi-cantly different compared to those of the control group. These results were similar to the shoulder horizontal abductor and adductor. Howev-er, there were significant differences in the ipsilateral and bilateral ra-tios of the wrist, forearm, and elbow joints. Especially, the WR of the wrist flexor, forearm pronator, and elbow flexor on the left side of ama-teur golfers showed imbalances in bilateral ratios. Moreover, the WR of the wrist and elbow flexors on the left side of amateur golfers were lower than those of the wrist and elbow extensors. Therefore, amateur golfers should strive to prevent injuries of the wrist, forearm, and elbow joints and to reinforce the endurance on those parts of the left side.



Effects of physical characteristics and residence style on alignment of lower extremity

Hye-Sang Park, Jangwon Lee

한국운동재활학회 JER Vol.12 No.2 2016.04 pp.109-112

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This research was performed to identify the incidence of deformity of lower extremity and to identify the relationship of the incidence between the deformities. Once the incidences and relationship are found, next purpose was to find the effects of physical characteristics and resi-dence styles on the development of lower extremity deformities. One hundred fifteen males and 108 females participated in this study. Data collecting was performed by questionnaire and visual postural evalua-tion. The incidence of genu varus was significantly high in standing-up life style compared to sitting-on life style (chi-square=8.28; P=0.004). However, the incidences of heel varus (chi-square=13.223; P=0.004) and femoral torsion (chi-square=19.347; P<0.0001) were significantly high in sitting-on life style than standing-up life style. The incidences of genu varus (chi-square=24.18; P<0.0001), heel varus (chi-square= 15.412; P<0.0001), and tibial torsion (chi-square=6.285; P<0.012) were significantly high in sitting-on life style compared to standing-up life style (P<0.05). The odd ratio result for sitting-on life style against standing-up life style showed 6.6 times significantly high relationship in femoral tor-sion (95% confidence range, 1.64–26.47) in men.



Impact of aerobic and anaerobic exercise training on oxidative stress and antioxidant defense in athletes

Song-Young Park, Yi-Sub Kwak

한국운동재활학회 JER Vol.12 No.2 2016.04 pp.113-118

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Exercise mediates an excessive free radical production leading to oxi-dative stress (OS). The body has natural antioxidant systems that help decrease OS, and these systems may be enhanced with exercise train-ing. However, only a few studies have investigated the differences in resting OS and antioxidant capacity (AOC) between aerobically trained athletes (ET), anaerobically trained athletes (RT), and untrained individ-uals (UT). Therefore, this study sought to investigate the resting and postexercise OS and AOC in ET, RT, and UT. Sixty healthy young males (26.6±0.8 yr) participated in this study. Subjects were divided into three groups, ET, RT, and UT by distinct training background. Resting plasma malondialdehyde (MDA) and protein carbonyls (PC) were not signifi-cantly different in ET, RT, and UT. However, MDA and PC were signifi-cantly increased following a graded exercise test (GXT) in UT but not in ET and RT. Resting total antioxidant capacity (TAC) levels and TAC were not different in ET, RT, and UT. Interestingly, TAC levels significantly de-creased after the GXT in all groups. Additionally, UT showed lower post-exercise TAC levels compared to ET and RT. These results showed that ET, RT, and UT have similar OS and AOC at rest. However, both ET and RT have greater AOC against exercise mediated OS compared to UT. These findings may explain, at least in part, why both aerobic and anaerobic types of exercise training improve redox balance. However, it appears there is no specific exercise type effect in terms of redox bal-ance.



The effect of 12-week Pilates exercises on wellness in the elderly

Su Yeon Roh

한국운동재활학회 JER Vol.12 No.2 2016.04 pp.119-123

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The purpose of this study is to examine the efficiency of 12-week Pilates exercises on wellness in the elderly. Before Pilates exercises training, the 88 elderly (63 females, 25 males) were given and completed a Well-ness Scale. Then, the elderly participated in Pilates exercises and com-pleted the same scale afterwards. Results of paired t-test showed that participants in 12-week Pilates exercises experienced significant im-provement in physical (t=2.762, P<0.01), social (t=3.362, P<0.001), spir-itual (t=2.307, P<0.05), and emotional wellness (t=2.489, P<0.05). Con-sequently, Pilates exercises helped improve wellness of the elderly.



Metabolic, cardiorespiratory, and neuromuscular fitness performance in children with cerebral palsy : A comparison with healthy youth

Claudia Cardona García, Alberto Alcocer-Gamboa, Margarita Pérez Ruiz, Ignacio Martínez Caballero, Avery D. Faigenbaum, Jonathan Esteve-Lanao, Beatriz Moral Saiz, Teresa Martín Lorenzo, Sergio Lerma Lara

한국운동재활학회 JER Vol.12 No.2 2016.04 pp.124-131

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The aim of this study was to assess metabolic, cardiorespiratory, and neuromuscular fitness parameters in children with spastic cerebral palsy (CP) and to compare these findings with typically developing chil-dren. 40 children with CP (21 males, 19 females; mean age, 11.0±3.3 yr; range, 6.5–17.1 yr; Gross Motor Function Classification System levels 1 or 2) and 40 healthy, age- and sex-matched children completed a test battery that consisted of 8 tests and 28 measures that assessed cardio-respiratory fitness, energy expenditure, anaerobic endurance, muscle strength, agility, stability and flexibility. Children with CP had significantly lower performance (P<0.05) on most cardiorespiratory and metabolic tests than those of healthy children, Differences in neuromuscular mea-sures of muscular strength, speed, agility, anaerobic endurance, and flexibility between groups were most apparent. Grouped differences in cardiorespiratory variables revealed a 25% difference in performance, whereas grouped differences in metabolic and neuromuscular mea-sures were 43% and 60%, respectively. The physical fitness of contem-porary children with CP is significantly less than healthy, age-matched children. Significant differences in neuromuscular measures between groups can aid in the identification of specific fitness abilities in need of improvement in this population.


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