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Quiet standing postural sway of 10- to 13-year-old, national-level, female acrobatic gymnasts

Opala-Berdzik A., Głowacka M., Wilusz K., Kołacz P., Szydło K., Juras G.

Acta of Bioengineering and Biomechanics

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2018

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Vol. 20, no. 2

117--123

EN

Purpose: The aim of the study was to determine whether 10- to 13-year-old, national-level, female acrobatic gymnasts present a different quiet standing postural control (with and without visual cues) than untrained female peers. Methods: The mean velocity of the center of pressure (in anterior-posterior and medial-lateral directions) was computed from 60-s long quiet-standing trials on a stationary force plate in fifteen 10- to 13-year-old female acrobatic gymnasts and thirteen sex- and age-matched non-athletes. A two-way repeated measures ANOVA (acrobatic gymnasts vs. non-athletes and eyes open vs. eyes closed) was used for the anterior-posterior and mediallateral COP mean velocity. The relation between subjects’ body mass and COP mean velocity was tested with the used Spearman’s Rank Correlation Coefficient. Results: Postural sway (represented by COP mean velocity) was not significantly different between the acrobatic gymnasts and the non-athletes ( p > 0.05), except for the faster medial-lateral sway in eyes-open conditions in the acrobatic gymnasts ( p < 0.05). The gymnasts’ body mass negatively correlated with their anterior-posterior sway velocity in both visual conditions (eyes open: r = –0.7; eyes closed: r = –0.6) and with medial-lateral sway velocity during eyes-closed trials (r = –0.5; p < 0.05). Conclusions: Results of the study indicate that in quiet standing postural control 10- to 13-year-old acrobatic gymnasts did not make use of their trained abilities. Heavier gymnasts might have been more stable than lighter ones during quiet standing.

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Balance in handstand and postural stability in standing position in athletes practicing gymnastics

Omorczyk J., Bujas P., Puszczałowska-Lizis E., Biskup L.

Acta of Bioengineering and Biomechanics

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2018

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Vol. 20, no. 2

139--147

EN

Purpose: The aim of this study was to compare and analyse of relationships between stability indices registered in two positions: standing and handstand in athletes practicing gymnastics at various levels of advancement. Methods: The study included 46 athletes practicing gymnastics. The research tool was posturograph CQ-Stab 2P. Results: In both standing position and handstand in the seniors there were statistically significantly lower values of such indicators as: sway area delimited by the center of pressure ( p = 0.004, p = 0.014), mean amplitude of COP ( p = 0.021, p = 0.017), mean displacement of the center of feet/hands pressure in medio-lateral direction ( p = 0.011, p = 0.003) and maximal displacement of the center of feet/hands pressure in mediolateral direction ( p = 0.036, p = 0.036). In the standing position, seniors also had statistically significantly lower values of the statokinesiogram path length, both total ( p = 0.000) as well as in anteroposterior ( p = 0.001) and mediolateral ( p = 0.002) directions. In the seniors group there were statistically significant correlations between variables obtained in standing position and handstand. Conclusions: The level of sport advancement significantly differentiates the stability of a body in standing position and handstand. The seniors practicing gymnastics, compared to juniors, are characterized by a better ability to control the position of the body in both positions. The lack of relationships between stability indices registered in standing and handstand in juniors suggests that the analysis of the values of stability indices obtained in a standing position does not provide the possibility of predicting the ability to maintain balance in the handstand during the recruitment of candidates for gymnastics.

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Trening uliczny

Parzych K., Ogorzelski J.

Zieleń Miejska

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2015

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Nr 10

42--44

PL

Street workout to nowoczesna nazwa kalisteniki, a więc formy aktywności fizycznej, bazującej na ćwiczeniach wykorzystujących masę własnego ciała. Chodzi np. o pompki, przysiady, brzuszki czy podciągnięcia. Do tych czynności nie jest potrzebny drogi i specjalistyczny sprzęt.

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The influence of whole body cryotherapy followed by relaxing gymnastics on bone turnover and muscular function in elderly women

Skrzek A., Bolanowski M., Zagrobelny Z., Lubczyńska-Kowalska W.

Acta Bio-Optica et Informatica Medica. Inżynieria Biomedyczna

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2003

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Vol. 9, nr 1-2

45-51

EN

To prevent the osteoporosis by applying physiotherapy is important for avoiding fractures. Cryotherapy is an established method of physiotherapy; and is usually followed by relaxing gymnastics. The aim of the study was to assess the possible influence of whole body cryotherapy followed by relaxing gymnastics on bone turnover and muscular function in elderly women. The study was carried out on 62 elderly women (mean age 69.2 ± 4.5 yr). None had a past history of osteoporotic fracture. Osteoporosis was diagnosed in 14 of them, osteopenia in another 30, and normal BMD was shown in the remaining 18. The control group were 20 young healthy women. The subjects were exposed to whole body cryotherapy for 6 weeks, 5 times weekly (3 minutes session each time) in a cryochambre of a temperature between -110 and -150°C. Then, they performed relaxing gymnastics for 45 minutes. Serum osteocalcin (OC) and carboxyterminal cross-linked telopeptide of type I collagen (ICTP) were measured, and a functional assessment of back flexors and extensors by the isokinetic method was carried out at the beginning and at the end of the study. We observed a statistically significant decrease of OC (p < 0.05) and an increase of ICTP (p < 0.05) in serum in the entire group of elderly women following the physiotherapy course. Bone turnover markers in the control group increased, but only statistically significant changes were in ICTP (p < 0.05). The functional muscle analysis revealed positive influence of physiotherapy for back flexors and extensors activity (p < 0.05). In conclusion, cryotherapy followed by relaxing gymnastics influences the bone turnover in elderly women. On the other hand, this form of physiotherapy induced positive changes in muscle function, in terms of back flexors and extensors activity.

PL

Zapobieganie osteoporozie poprzez zabiegi fizjoterapeutyczne jest ważnym elementem chroniącym przed złamaniami. Krioterapia jest uznaną metodą terapeutyczną i najczęściej łączona jest z gimnastyką rozluźniającą. Celem tej pracy jest ocena wpływu krioterapii połączonej z gimnastyką na przebudowę kości i siłę mięśniową u starszych kobiet. Badania przeprowadzono na 62 starszych kobietach (średnia wieku 69,2 ± 4.5 lat) U żadnej osoby nie było złamań z powodu osteoporozy. Osteoporozę zdiagnozowano u 14 osób, osteopenię u 3 0, normalne wartości BMD odnotowano u pozostałych 18. Grupę kontrolną stanowiło 20 młodych zdrowych kobiet. Pacjentki poddano krioterapii przez 6 tygodni, 5 razy w tygodniu (sesje 3-minutowe) w kriokomorze o temperaturze od -110 do -150 °C. Następnie pacjentki gimnastykowały się przez 45 minut. Wykonano badania poziomu osteokalcyny (OC) i C-końcowego usieciowanego telopeptydu łańcucha alfa kolagenu typu I (ICTP) w surowicy krwi. Oceniano funkcje zginaczy i prostowników na początku i na końcu terapii metodą izokinetyczną. Zaobserwowano statystycznie znamienny spadek OC (p < 0,05) i wzrost ICTP (p < 0,05) w całej grupie starszych pacjentek. W grupie kontrolnej poziom markerów przemiany kostnej również wzrósł, ale statystycznie znamienne zmiany zaobserwowano jedynie w poziomie ICTP (p < 0,05). Odnotowano również znamienny statystycznie wpływ nafunkcję zginaczy i prostowników (p < 0,05). Stwierdzono, że krioterapia z następową gimnastyką wpływa na przemianę kostną u starszych kobiet, a jeszcze bardziej na funkcję mięśni.