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Christoph Raschka

Publications and source records attributed to Christoph Raschka.

10 recordsLinked to original sources
PubMed2005

[Sports-anthropological analysis of Tunisian elite karateka].

This study is based on a careful sport anthropological investigation (ca. 15 min) of 25 Tunisian athletes of the Karate team (aged 18 - 31 years) with special permission of the Tunisian Ministry of Youth and Sports. Considering the height of the Tunisian elite athletes (175.6 +/- 4.9 cm), heavier kareteka are bigger (178.9 +/- 2.2 cm vs. 171.4 +/- 3.9 cm). The mean weight was 73.1 +/- 8.2 kg (heavier athletes 78.7 +/- 5.9 kg vs. lighter athletes 66.0 +/- 4.1 kg). On Conrad's chessboard diagram all the Tunisian karateka were placed in the leptomorph half, only two in the metromorph corridor, but most of them in the middle between hypoplastic and hyperplastic poles. The AKS index diagram demonstrates a faint diagonal positioning of the single weight categories, with progression of body mass from the lower to the upper right area. None of the athletes surpasses a body height of 184 cm. The variation of the AKS index is higher than the variation of body height. The constitutional analysis according to Knussmann (1961) reveals an orientation of heavier weight classes towards macrosomia and pyknomorphism. The proportional figures of the athletes show a small variation of joint heights in lower extremities. In Parnell's somatochart (1954, 1958) the concentration of Tunisian karateka is found in the mesoectomorph third as well as in the somatochart of Heath & Carter (1967). Further sport anthropological karate studies should focus on adolescents and females as well as on physiological and biomechanic parameters.

Adult↗
PubMed2004

[Diurnal variation of pain perception and heart rate in the human tourniquet pain model in healthy volunteers].

The diurnal variation of pain threshold was studied in 13 healthy volunteers (age: 21 - 27 ys) using the tourniquet pain model. A tourniquet was inflated above systolic blood pressure for 1 minute and pain scores and heart rate were recorded at 0.5, 1.0, 1.5 and 2.0 minutes. The test was repeated during a study day at 6.00 h, 12.00 h, 18.00 h and 24.00 h. Significant differences of pain scores between clocktimes were found 1 minutes after inflation and after 1.5 minutes with regard to heart rate. Generally, the highest pain scores were found at 24.00 h.

Adult↗
PubMed2003

[Multiple pathology in a Merowingian individual of a graveyard near Insheim (Rhineland-Pfalz)].

The following case report describes in detail a 57 years old (+/- 5 years) male individual from a Franconian graveyard in Insheim, Province of Rhineland-Palatinate, dating to between the 6th and 7th century A.D. The individual displays a number of unusual pathologies. The atlas shows a complete aplasia of the posterior arch, probably resulting in a torticollis. The changed static induced a massive spondylar-arthrotic degeneration of the cervical spine on the right-lateral portion. On the fronto-parietal section two fractures are visible which were caused by a sharp and violent force. The area in question measures 7 by 10 cm. It has healed in a dislocated position. The second location displays marks of a 6 cm long sword-cut which did strike the skull obtusely on the left parietal. In addition to the above the skull displays on its right side a great number of small circular hole defects which also appear on ribs, vertebrae, clavicula and the mandible. They present the typical picture of a plasmocytoma. As an expression of a secondary hyperparathyreoidism one can recognize ossifications of soft tissue on the calcaneus, tibia, fibula and patella as well as intravital loss of mandibular dentition. It is quite remarkable that the individual reached a relative old age despite of his numerous and serious physical encroachments due to the apparent and obvious intentions of his aggressive contemporaries to kill him.

Bone and Bones↗
PubMed2003

[Sports anthropology investigation on female participants of the German Sports-Aerobic-Masters compared to non-sports participating young females].

This investigation is based on the sports anthropology of 50 female participants of the German championships of Sport Aerobics (age range 16-35 years), whose constitutional body build parameters were compared to 50 female physical education students (age range 18-30 years) and 40 women (age range 18-35), who did not engage in sportive activities at all. Somatotyping and other sports anthropological techniques were performed according to Parnell (1958). Heath & Carter (1967), Conrad (1963) and Knussmann (1961a, 1961b) as well as proportion figures and phantom stratagem. In the North-American somatocharts the aerobic athletes were classified as ectomesomorph, whereas the physical education female students were found in the ectoendomorph area according to Parnell and the non-sportive subjects remained on the mesoendomorph part. In the Heath-Carter somatochart, the physical education students and the non-sportive women were registered in the mesoendomorph and ectoendomorph areas. In the German systems the young women were placed in the leptomorph direction and mesoplastic in the Conrad typology. According to Knussmann, all the investigated groups were classified as ultramacrosom and superleptomorph. Some morphological differences can be detected by means of proportion figures and phantom stratagem. The aerobic athletes display a more athletic somatotype with an accentuated radio-ulnar breath. The aerobic group is also characterised by the smallest body fat percentage, whereas the non-exercising group shows the opposite. This is also proven by the body mass index.

Adolescent↗
PubMed2002

Influence of choking and arm lock technique in judo on the acoustic reflex threshold (art) in healthy well-trained male and female judoka.

The objective of this controlled parallel group study was to assess the effects of standardized choke holds (test) and arm lock techniques (controls) in on the acoustic hearing threshold. 104 (test group, 32 female subjects and 72 male subjects, mean age = 28.0 years, SD = 7.9 years) and 51 experienced judoka (controls. 21 female subjects, 30 male subjects; mean age = 26.8 years; SD = 13.2 years) participated. Acoustic reflex thresholds (ART [dB]) were measured separately before and after each manoeuvre both for air and bone conduction of the right and left side. The difference Dart of the ART before and after a manoeuvre (Dart = ARTbefore - ARTafter) was calculated. Data were presented descriptively and nonparametric statistics was applied for nonrelated (Kruskal Wallis ANOVA) or related samples (Friedman ANOVA). Wilcoxon tests were used for pre/post comparisons of original ART values. The effect of choking on Dart was significantly different from the effect of the arm lock technique on Dart independent of the experimental condition. A significant influence of applied frequencies on Dart was ascertained if a choking technique was used. For all frequency ranges applied a highly significant improvement of the ART after choking was found. With regard to bone conduction thresholds increased by an average of 6.1 dB and for air conduction the average increase was 4.9 dB. On the contrary, arm locks induced a slight mean deterioration of the ART for bone conduction of 1.8 dB. The ART for bone conduction also showed a trend towards a reduction after arm locks with a mean decrease of about 1.2 dB. In conclusion, standardized choking manoeuvres reduced the ART corresponding to an improved hearing both with regard to air and bone conduction. Such an effect on hearing ability was not found for arm lock techniques.

Adolescent↗