• Journal of Oral Medicine and Pain
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• 제22권1호
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• pp.183-192
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• 1997

Pressure pain thresholds are routinely used in orofacial pain research to evaluate the response of deep orofacial tissues to mechanical stimulation. Like other psychophysical measurements, however, this technique must stimulate cutaneous tissues before stimulating deeper tissues. This study aimed at evaluating the influence of the cutaneous hypoesthesia on the pressure pain threshold in 30 healthy volunteers. PPTs were determined with electric pressure algometry over masseter, temporalis anterior, sternocleidomastoid, and trapezius muscle before and after skin hypoesthesia. A local anesthetic cream and a control cream were applied following a placebo-controlled double-blind design and PPTs were reassessed. Two examiners measured PPTs two times on each muscles, randomly. And the EMG activity of all muscles were measured to evaluate the relationship with PPTs. The collected data were processed by SAS/STAT program. The obtained results were as follows : 1. There were a tendency to increase PPTs after than before cutaneous hypoesthesia, but, there were no significant difference statistically. 2. PPTs were consistently higher in anterior temporalis than in masseter muscle. 3. In all occasions, PPTs were higher in males than in females(p<0.001). 4. A statistically significant correlation was obtained from values of intra-examiners and inter-examiners in all measured muscles. 5. A significantly positive correlation was not found between PPT and functional EMG activity.

• 기본간호학회지
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• 제18권3호
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• pp.348-355
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• 2011

Purpose: This study was done to examine the effects of heat therapy on low back pain, blood pressure and pulse rate after percutaneous coronary intervention. Method: The participants in this study were 40 patients who were admitted after having percutaneous coronary intervention. The experimental group, 20 patients, had heat therapy and the control group, 20 patients, maintained a supine position for 12 hours after the intervention. Back pain (VAS), blood pressure and pulse rate were measured just after removal of the sheath, and at 2-hour intervals up to 6 hours. Data were analyzed using SPSS 15.0. Results: The experimental group had significantly lower VAS for low back pain (F=23.44, p=.001). However no significant differences were found between two groups for blood pressure and pulse rate. Conclusion: The findings indicate that heat therapy is effective in reducing low back pain in patients who have had percutaneous coronary intervention. Therefore, heat therapy could be used as nursing intervention percutaneous coronary intervention.

• PNF and Movement
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• 제15권3호
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• pp.353-360
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• 2017

Purpose: This study aimed to measure static balance of low back pain patients while one-leg standing in abdominal compression belts. Methods: The study included 40 adult males and females at J university, divided into a low back pain patient group and a normal group through the Oswestry disability questionnaire (ODQ). The subjects were instructed to hold a one-leg standing posture for 15 seconds on a balance measurement plate while wearing an abdominal compression belt. Shifting distance (0.1 cm), mean velocity (cm/s), pressure, and contact area were analyzed using BioRescue (BioRescue, RMINGEIEIRIE, Rodez, France). The average value was used to measure the result 3 times for each condition. Results: Both normal and low back pain groups significantly decreased in the speed of sway while wearing the abdominal compression belt. Furthermore, the pressure of the center of motion significantly decreased in the low back pain groups while wearing abdominal compression belt. However, there were no significant differences in the speed of sway or the pressure of center of motion between groups after wearing the abdominal pressure belt. Conclusion: These results suggest that abdominal compression belts are one option for improving balance temporarily. However, balance after wearing abdominal compression vests depends on onset of back pain, age, and symptoms of pain in the groups with low back pain. Further research is needed to investigate muscle activity, dynamic balance, and the effect of the period of wearing abdominal compression belts in the variety of low back pain patients.

• Journal of Dental Anesthesia and Pain Medicine
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• 제19권4호
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• pp.201-208
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• 2019

Background: After tooth extraction, pain due to dry socket and pain in the adjacent tooth are common. The aim of this study was to retrospectively analyze pain in the adjacent tooth after surgical extraction of the mandibular third molar. Methods: Postoperative pain due to dry socket, pain in the adjacent tooth, and pain from other causes were present. Group A included patents with dry socket alone; group B included patients with pain in the adjacent tooth alone; and group C included patients with both. The duration of symptoms was recorded. In addition, the prognosis of pain was divided into the complete improvement, improvement, maintenance, deterioration, and complete deterioration groups. Results: A total of 312 mandibular third molars were extracted from 13, 60, and 10 patients in groups A, B, and C, respectively. The mean duration of symptoms was 5 days in group A and B and 15.2 days in group C. There were statistically significant differences in the duration of symptoms between groups A and C and groups B and C. Conclusion: Pain in the adjacent tooth after third molar extraction can be caused by inflammatory reactions and pressure on this tooth. The pain caused by pressure on the periodontal ligament and alveolar bone results from the cytokines released by osteoclasts, which are responsible for bone destruction. However, pain from periodontal ligament damage caused by excessive pressure may be misunderstood as pulpal pain. Unconscious parafunctional habits, such as clenching and bruxism, could also be associated with post-extraction pain.

• The Korean Journal of Pain
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• 제35권3호
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• pp.240-249
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• 2022

Background: Widespread pain partially depends upon sensitization of central pain mechanisms. However, mechanisms controlling pain distribution are not completely known. The present study sought to assess skin temperature variations in the area of experimentally-induced pain and potential sex differences. Methods: Pressure-pain thresholds (PPTs) were measured on the right infraspinatus muscle. At the end of Day 0, all participants performed an eccentric exercise of the shoulder external rotators to induce muscle soreness 24 hours after. On Day 1, participants indicated on a body chart the area of pain induced by 60 seconds of suprathreshold pressure stimulation (STPS; PPT + 20%) on the right infraspinatus muscle. Skin temperature variations in the area of referred pain were recorded with an infrared thermography camera, immediately before and after the STPS. Results: Twenty healthy, pain-free individuals (10 females) participated. On Day 0, the pre-STPS temperature was higher than the post-STPS temperature on the arm (P = 0.001) and forearm (P = 0.003). On Day 1, the pre-STPS temperature was higher than the post-STPS temperature on the shoulder (P = 0.015), arm (P = 0.001), and forearm (P = 0.010). On Day 0, the temperature decrease after STPS in females was greater than in males on the forearm (P = 0.039). On Day 1, a greater temperature decrease was found amongst females compared with males at the shoulder (P = 0.018), arm (P = 0.046), and forearm (P = 0.005). Conclusions: These findings indicate that sympathetic vasomotor responses contribute to expand pressure-induced referred pain, especially among females.

• Physical Therapy Rehabilitation Science
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• 제11권3호
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• pp.329-334
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• 2022

Objective: Low back pain (LBP) is a symptom that accounts for a large proportion of musculoskeletal pain. Among them, non-specific LBP (NSLBP) means that the pathological cause is unknown, and belongs to the most common LBP. Studies on the mechanism of muscle control in LBP are insufficient, and quantitative studies are needed. Design: Observational cross-sectional study design Methods: A Thirty participants with NSLBP symptoms were enrolled, and their pressure pain thresholds (PPT) and muscle and fat thickness were measured. Participants measured the paraspinal muscles (PM) of the thoracic and lumbar spine and medial hamstring (semitendinosus) on the dominant and non-dominant sides in the prone position. Results: Among the variables that were significant in the correlation analysis, PM of the thoracic and lumbar spine showed a significant relationship in the PPT ([thoracic spine PM]=1.141+0.912 [lumbar spine PM]). Also, there was a significant relationship between the lumbar spine PM in the PPT and the thoracic spine PM in the muscle thickness ([lumbar spine PM of PPT]=4.057+0.117 [thoracic spine PM of muscle thickness]) Conclusions: Although there was no muscle imbalance according to the dominant and non-dominant side, there is a correlation between the pressure pain threshold and the muscle thickness between the paraspinal muscles of the thoracic spine and the lumbar spine.

• 정신신체의학
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• 제7권1호
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• pp.51-60
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• 1999

본 연구에서는 불안과 우울감과 같은 정서상태가 만성적인 통증 인지와 상관관계가 있는지를 알아보고자 PTSD 환자군의 압통에 대한 역치와 불안증상, 우울증상의 정도를 측정하였고, 불안, 우울증상의 정도와 압통역치의 상관관계를 대조군과 비교하였다. 연구대상 환자군은 1997년 10월부터 1998년 3월까지 중앙대학교 의과대학 부속필동병원 및 용산병원 신경정신과에 입원한 환자와 외래환자들 중에서 PTSD에 진단된, 20-60세에 해당되는 성인 남자환자 23명을 대상으로 하였다. 결과는 다음과 같다. 1) PTSD 환자군에서 통계적으로 의미있게 높은 우울증상과 불안증상을 보였다(p<.05). 2) 압통에 대한 역치는 환자군에서 유의하게 높은 결과를 보였다(p<.05). 이런 결과를 보인 요인으로는, 환자군의 불안증상보다는 만성적인 우울증상이 통증역치의 증가에 부분적으로나마 영향을 주었을 것으로 추정되며 그외에 환자군에서의 opiate system의 이상, 환자군의 질병역할, 환자군이 처한 여러 사회환경적인 상황의 영향 등과 같은 여러 요인이 관련되었을 것이라고 생각한다. 결론적으로 PTSD의 만성 통증은 감정, 특히 우울증과 관련이 있을 것으로 보였으나, 그 인과관계에 대한 결론을 내리기에는 미흡한 점들이 있다. 앞서 언급한 여러 제한점들을 보완한 향후 연구를 통해 정서적 증상과 동통과의 보다 특이적인 연관성을 규명하는 연구가 필요할 것이라 생각한다.

• 한국엔터테인먼트산업학회논문지
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• 제14권3호
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• pp.383-392
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• 2020

이 연구는 엉치엉덩관절 통증환자에게 관절가동술, 깔창착용 보행훈련, 그리고 관절가동술과 깔창착용 보행훈련 중재를 실시하고 환자의 통증, 골반 각 및 족저압에 대한 효과를 비교하였다. 무작위로 24명의 대상자를 관절가동술군(n=8), 깔창착용보행훈련군(n=8) 또는 관절가동술과 깔창착용보행훈련군(n=8)으로 배정하여, 하루에 30분씩, 일주일에 2번씩 4주 동안 중재하였다. VAS를 사용하여 통증을 평가하고 골반 각도를 Palpation Meter 사용하여 측정하였고, 족저압 (전 / 후비)을 Gateview AFA-50을 사용하여 측정하였다. 모든 측정은 중전·중재 4주 후에 실시하였다. 모든 그룹은 그룹 내 전·후 비교에서 유의한 통증 감소를 보였다(p<.01). 골반 각도에서 관절가동술군은 전방 기울기에서만 통계적으로 개선되었고, 관절가동술과 깔창착용 보해훈련군은 앞쪽 및 뒷쪽기울임 모두에서 통계적으로 유의미한 개선을 보였으며(p<.01), 깔창착용 보행훈련군은 통계적으로 유의한 변화가 없었다(p>.05). 또한 관절가동술과 깔창착용 보행훈련군은 족저압에서 유의한 차이를 나타냈다(p<.01). 모든 중재는 엉치엉덩관절 통증환자의 통증개선에 효과가 있었으며, 관절가동술과함께 깔창착용 보행훈련을 한 군이 골반각도와 족저압에 가장 효과적이었다. 이 연구는 엉치엉덩관절통증이 있는 환자뿐만 아니라 만성 허리통증 및 족저압 입력 문제가 있는 환자의 부상 예방, 자세교정, 그리고 보행훈련을 위한 기초자료가 될 것으로 사료된다.

• 대한정형도수물리치료학회지
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• 제29권3호
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• pp.73-84
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• 2023

Background: This study aimed to compare pressure pain thresholds (PPTs) in the vertebral segments between patients with chronic lower back pain (CLBP) and healthy participants without back pain and to determine the correlation between vertebral bone-segment PPT and pain level, lower back pain dysfunction, and psychological status in patients with CLBP. Methods: The subjects of this study were 23 healthy adults and 23 adults with CLBP. PPT was measured in 23 spinal bone segments using a PPT device, and the CLBP group was subjected to a pain level test (NRS) and a psychological test using the Korean version of the pain catastrophizing scale (KPCS). The functional level was assessed using the Korean version of the Oswestry disability index (KODI). Results: PPTs of the spinal sclerotomes were significantly lower in patients with CLBP than in healthy participants. In the CLBP group, the composite score of lumbar PPTs showed a high correlation with the composite scores for all segments, but not with the pain level (NRS), KPCS score, and spinal sclerotome PPT. Moreover, PPT in the sacral sclerotomes showed a significant negative correlation coefficient with function, with a KODI score of -.462 (p<.01). Conclusion: In this study, PPTs in all spinal segments in patients with CLBP was significantly lower than that in healthy subjects. The PPTs of the lumbar region was significantly correlated with the PPTs of other spinal regions. Through this study, it was found that there were changes in PPTs in CLBP patients not only in the lumbar region but also in other spinal regions. This information should be considered during clinical treatment of patients with low back pain.

• 대한전기학회논문지:시스템및제어부문D
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• 제52권11호
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• pp.657-661
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• 2003

In this paper, we designed a portable digital pressure algometer which not only can measure the pain level objectively and quantitatively, but also is able to do RF communication. This system consists of pressure sensor for pain measurement, analog signal analysis, digital hardware based on PIC16C73B, RF communication and display. To evaluate the performance of the developed system, we measured pressure threshold using commercial analog PA(Pressure Algometer) and the proposed system, and then evaluated the correlation and confidence. Using linear regression analysis, standard deviation of 0.1731 and R-square value of 99.3% were obtained. In conclusion, the above results showed good performance and its usability in measuring the pain clinically.