Characteristics of TCM constitutions of adult Chinese women in Hong Kong and identification of related influencing factors: a cross-sectional survey.

BACKGROUND: Traditional Chinese Medicine Constitution (TCMC) refers to an integrated, metastable and natural specialty of individual in morphosis, physiological functions and psychological conditions. It is formed on the basis of innate and acquired endowments in the human life process, which can be divided into normal constitution and unbalanced ones. The aim of this study was to investigate the distribution of TCMCs of Chinese women in Hong Kong and its acquired influencing factors. METHODS: Local Chinese women between 30 to 65 years old, were recruited from 18 districts of Hong Kong (n=944), and were assessed using the Traditional Chinese Medicine Physical Constitution Scale for their TCMC types. Social-demographic, reproductive, lifestyle, systemic health and emotional status information were collected through structured questionnaire. The associations between different independent factors and each TCMC type, as well as the complex unbalanced TCMC types were tested individually. Significant factors related to unbalanced TCMC types were identified in final models using multiple factor analysis. RESULTS: A total of 764 (80.9%) participants were diagnosed with unbalanced TCMCs. The most common TCMC type was Qi-deficiency constitution (53.9%), followed by Phlegm-wetness (38.9%), Yang-deficiency (38.2%), Yin-deficiency (35.5), Blood-stasis (35.4) and Qi-depressed (31%) constitution. Six hundred and eleven participants (64.7%) had at least two types of combined and unbalanced constitutions. Stepwise logistic analysis indicated that poor systemic health condition (OR, 1.76-2.89), negative emotions (OR=1.39), overweight (OR=1.58), high educational level (OR=1.18) and mental work (OR=1.44) were significantly positively correlated with certain unbalanced TCMCs. Meanwhile, aging (OR, 0.59-0.73), exercise habit (OR, 0.61-0.79) and reproductive history (OR=0.72) showed inverse associations with unbalanced constitutions. In addition, systemic health condition and emotional status, exercise habit and age were significantly associated with the combined unbalanced TCMC types. CONCLUSION: The majority of middle-aged Chinese women in Hong Kong had unbalanced and complex TCMCs. Qi-deficiency, Phlegm-wetness and Yang-deficiency constitutions are the most common constitutions. Poor systemic health condition, less-than-satisfactory emotional life, overweight and mental work are associated with and may be contributors for the formation of unbalanced TCMCs, while regular physical exercise was found to be a potential protective factor for unbalanced TCMCs.

Acupuncture therapy on apoplectic aphasia rehabilitation.

OBJECTIVE: Acupuncture has often been used for aphasia rehabilitation in China. The purpose of this paper was to: 1) provide a historic overview of acupuncture for aphasia due to stroke; 2) summarize the commonly used acupuncture approaches; and 3) objectively comment on the effectiveness of acupuncture for the rehabilitation of this type of disorder. METHODS: The Elsevier database and a Chinese database (CNKI) were searched through December, 2010 with the key words "aphasia, acupuncture" in English and Chinese, respectively. Case reports, uncontrolled clinical observations and controlled clinical trials were all included if acupuncture was the sole treatment or the main component of complex intervention for the rehabilitation of aphasia caused by cerebrovascular disease. RESULTS: More than 100 relevant articles were found. After analyzing these articles, we found that acupuncture for apoplectic aphasia most often included tongue, scalp, body and combination acupuncture. Tongue bleeding, deep insertion and strong stimulation were adopted by many practitioners. The ten most frequently used acupoints (or areas) were Lianquan (RN 23), Jinjin (EX-HN 12), Yuye (EX-HN 13), Tongli (HT 5), Fengchi (GB 20), Neiguan (PC 6), Baihui (DU 20), No. 1, 2 and 3 language sections, Sanyinjiao (SP 6) and Yamen (DU 15). CONCLUSIONS: Controlled clinical studies and a systematic literature review demonstrate that acupuncture has therapeutic effects on aphasia after stroke.

Effects of Class III malocclusion on young male adults' vocal tract development: a pilot study.

PURPOSE: To compare the vocal tract configuration between male speakers with Class III malocclusion and their normally developing counterparts and to investigate the concomitant acoustic changes caused by the alterations in vocal tract configuration. PATIENTS AND METHODS: Eight young male patients with Class III malocclusion and 8 normally developing counterparts participated in this study. Acoustic reflection technology was used to measure vocal tract dimensions in the 2 groups. A continuous speech sample and 4 sustained vowels (/a/, /æ/, /i/, and /u/) were recorded from each participant to obtain the fundamental frequency and the first 3 formant frequencies (F1, F2, and F3). RESULTS: The results showed significantly greater oral length and oral volume for young male patients with Class III malocclusion than their cohorts. The F1 of vowel /u/ was found to be significantly higher in male patients with Class III malocclusion than their cohorts. The vowel space of the 4 recorded vowels was reduced and the F1-F2 formant map for /u/ was relatively more scattered in male patients with Class III malocclusion than in the control speakers. CONCLUSION: This study has provided preliminary information on the effects of Class III malocclusion on vocal tract configuration and concomitant acoustic changes in young male patients.

Acoustic fidelity of internet bandwidths for measures used in speech and voice disorders.

The purpose of this study was to explore the impact of different bandwidths on acoustic measures when using low-cost internet technology of teletherapy in the field of speech and language rehabilitation. Normal speech and voice samples were collected at a clinic and a remote place by connecting the computers to Skype and VoiceEmotion software, while the disordered speech samples were collected through teaching CD samples from a quality voice textbook. Pure tones at 200 and 1000 Hz were also collected. The acoustic parameters: average fundamental frequency (F0), jitter percent, shimmer percent and noise-to-harmonic ratio (NHR) were used for fidelity analysis. The average F0 increased across all samples and bandwidths. There was greater increase and variability on the disordered voice samples. Speaking F0 was shown to both increase and decrease in no identifiable pattern with the different bandwidths. Jitter, shimmer and NHR were significantly different on pre- and post-transmission trials. The study provided preliminary pilot data on the fidelity effect of internet transmission on acoustic variables for voice and speech. Cautious suggestions were also provided to speech and language therapists who would consider using teletherapy for speech and voice diagnosis and treatment.

Treatment of spasmodic dysphonia with homeopathic medicine: a clinical case report.

Botulinum toxin (Botox) injection is the only conventional medical treatment available for patients with spasmodic dysphonia (SD). Some patients are reluctant to receive Botox treatment due to concerns about unknown long-term side effects, expense, and dependence on repeated injections. The purpose of the study was to report the perceptual and physiological changes in the vocal functions of an SD patient treated with classical homeopathy. The results were similar to a previous case report: classical homeopathy seems to be capable of amelioratiny SD symptoms beyond the short-term effects of Botox injections. Although the physiological mechanism of homeopathic healing is not fully accounted for by the current bio-medical models, it may be an effective therapeutic alternative for some SD patients.

Normative standards for vocal tract dimensions by race as measured by acoustic pharyngometry.

SUMMARY: Acoustic pharyngometry evaluates the geometry of the vocal tract with acoustic reflections and provides information about vocal tract cross-sectional area and volume from lip to the glottis. Variations in vocal tract diameters are needed for speech scientists to validate various acoustic models and for medical professionals since the advent of endoscopic surgical techniques. Race is known to be one of the most important factors affecting the oral and nasal structures. This study compared vocal tract dimensions of White American, African American, and Chinese male and female speakers. One hundred and twenty healthy adult subjects with equal numbers of men and women were divided among three races. Subjects were controlled for age, gender, height, and weight. Six dimensional parameters of the speakers' vocal tract cavities were measured with acoustic reflection technology (AR). Significant gender and race main effects were found in certain vocal tract dimensions. The findings of this study now provide speech scientists, speech-language pathologists, and other health professionals with a new anatomical database of vocal tract variations for adult speakers from three different races.

Changes in the human vocal tract due to aging and the acoustic correlates of speech production: a pilot study.

This investigation used a derivation of acoustic reflection (AR) technology to make cross-sectional measurements of changes due to aging in the oral and pharyngeal lumina of male and female speakers. The purpose of the study was to establish preliminary normative data for such changes and to obtain acoustic measurements of changes due to aging in the formant frequencies of selected spoken vowels and their long-term average spectra (LTAS) analysis. Thirty-eight young men and women and 38 elderly men and women were involved in the study. The oral and pharyngeal lumina of the participants were measured with AR technology, and their formant frequencies were analyzed using the Kay Elemetrics Computerized Speech Lab. The findings have delineated specific and similar patterns of aging changes in human vocal tract configurations in speakers of both genders. Namely, the oral cavity length and volume of elderly speakers increased significantly compared to their young cohorts. The total vocal tract volume of elderly speakers also showed a significant increment, whereas the total vocal tract length of elderly speakers did not differ significantly from their young cohorts. Elderly speakers of both genders also showed similar patterns of acoustic changes of speech production, that is, consistent lowering of formant frequencies (especially F1) across selected vowel productions. Although new research models are still needed to succinctly account for the speech acoustic changes of the elderly, especially for their specific patterns of human vocal tract dimensional changes, this study has innovatively applied the noninvasive and cost-effective AR technology to monitor age-related human oral and pharyngeal lumina changes that have direct consequences for speech production.

Stuttering attitudes in Hong Kong and adjacent Mainland China.

The present study aims at studying the public attitudes towards stuttering in Hong Kong and Mainland China. Translated Chinese versions of the Public Opinion Survey of Human Attributes-Stuttering (POSHA-S) were distributed to convenience samples in Hong Kong and Mainland China, with a total number of 175 completed questionnaires returned in each sampling region (n 5 350). Mean ratings of respondents from Hong Kong and Mainland China were similar in most comparisons; yet, a few differences were noted. Larger but idiosyncratic differences characterized the Chinese respondents compared to more than 4000 respondents from numerous countries and languages around the world in the POSHA-S database archive. Overall, they documented aspects of stereotypes and potential stigma with respect to people who stutter. While premature to provide unambiguous conclusions, results suggest that Chinese respondents have unique stuttering attitudes.

Quantification of vocal tract configuration of older children with Down syndrome: a pilot study.

OBJECTIVE: To quantify the vocal tract (VT) lumen of older children with Down syndrome using acoustic reflection (AR) technology. DESIGN: Comparative study. SETTING: Vocal tract lab with sound-proof booth. PARTICIPANTS: Ten children (4 males and 6 females), aged 9-17 years old diagnosed with Down syndrome. Ten typically developing children (4 males and 6 females) matched for age, gender, and race. INTERVENTION: Each participant's vocal tract measurements were obtained by using an Eccovision Acoustic Pharyngometer. MAIN OUTCOME MEASURES: Six vocal tract dimensional parameters (oral length, oral volume, pharyngeal length, pharyngeal volume, total vocal tract length, and total vocal tract volume) from children with Down syndrome and the typically developing children were measured and compared. RESULTS: Children with Down syndrome exhibited small oral cavities when compared to control group (F(1,18)=6.55, p=0.02). They also demonstrated a smaller vocal tract volumes (F(1,18)=2.58, p=0.13), although the results were not statistically significant at the 0.05 level. Pharyngeal length, pharyngeal volume, and vocal tract length were not significantly different between the two groups. CONCLUSION: Children with Down syndrome had smaller oral cavities, and smaller vocal tract volumes. No significant differences were found for pharyngeal length, pharyngeal volume, and vocal tract length between these two groups.

Analysis of propagation of multi-channel EEG in the test of sustained attention.

the psychological construct 'sustained attention' describes a basic component of attention characterized by the subject's readiness to detect rarely and unpredictably occurring signals over prolonged periods of time. In this study, six healthy volunteers underwent a sustained attention to response task (SART), while their electroencephalographic (EEG) were recorded contemporarily. Directed Transfer Function (DTF) was used as estimator for direction of propagation of EEG function coupling. The results of DTF showed that the information flux within EEG functional coupling changed when attention condition changed from inattention state to sustained attention state, principally at alpha and beta rhythms. The DTF could be used to evaluate sustained attention condition and they might be used for research on damage of attention mechanisms of ADHD and TBI diseases in future.

Volumetric measurements of vocal tracts for male speakers from different races.

Research examining physiologic and acoustic characteristics of culturally diverse populations is sorely needed, but rarely reported. The major aim of this study was to quantify vocal tract dimensional parameters (oral length, oral volume, pharyngeal length, pharyngeal volume, total vocal tract length and total vocal tract volume) of adult male speakers from three different racial populations (White American, African American, and Chinese). It also attempted to investigate if volumetric differences in the speakers' vocal tracts, like length differences, would contribute to the acoustic characteristics of these speakers from different races. The findings of this study support the hypothesis that speakers from different races may have morphological differences in their vocal tract dimensions, and these morphological differences (especially volumetric differences) could be partially responsible for the formant frequency differences in a vowel sound void of specific language/dialectal impacts. The study has provided speech scientists, speech-language pathologists, linguists and other health professionals with a new and preliminary acoustic and physiological database for adult male speakers from these three different races.