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Diplom-Sportwissenschaftlerin Nina Reichwein Institute for sport science

Inhomogeneity of capacity requirements and their risks on commercially guided ski tours with leisure sport orientated ski tour participants. Diplom-Sportwissenschaftlerin Nina Reichwein Institute for sport science Ruhr - University Bochum, Germany

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Diplom-Sportwissenschaftlerin Nina Reichwein Institute for sport science

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  1. Inhomogeneity of capacity requirements and their risks on commercially guided ski tours with leisure sport orientated ski tour participants Diplom-Sportwissenschaftlerin Nina Reichwein Institute for sport science Ruhr - University Bochum, Germany International symposium "High altitude influence on human performance: science and praxis IV" from 08.-13.09.2009 Bohinjska Bela , Slowenia

  2. introduction, aim, material & methods, results, discussion, conclusion Rising Popularity of ski touring in leisure sport sector - 1,2 mio. hours (1980) → 20mio. hours (2006) (Zeigler, 2006) • 2006: 1mio. estimated ski touring people in leisure sport sector in european alps(Burtscher, 2006) _______________________________________________________ Nina Reichwein, Inhomogeneity during ski tour ascents, Bohinjska Bela

  3. introduction, aim, material & methods, results, discussion, conclusion Rising popularity of ski touring ↓ Commercial mountain sport schools widen spectrum of ski tour supplies 2008: 95% of german commercial mountain sport schools offer ski tours in european alps or even beyond _______________________________________________________ N. Reichwein, Inhomogeneity during ski tour ascents, Bohinjska Bela/ Slowenia

  4. introduction, aim, material & methods, results, discussion, conclusion Organizer´s aim: minimize safety risks during ski tour Ski tour requirements ↓ ? Decision of psychological & physiological suitability to ski tour´s requirements… ¿ ↓ homogenous group composition ↓ ↓ … is left up to leisure sport orientated competitioners = frequently inexperienced laypersons - detailed tour description on organizer´s homepage - verbally given tour information via telephone or e-mail _______________________________________________________ N. Reichwein, Inhomogeneity during ski tour ascents, Bohinjska Bela/ Slowenia

  5. introduction, aim, material & methods, results, discussion, conclusion Question: Do the tour descriptions announced by the organizer present sufficient information in order to reduce the individual´s and the group´s safety risks by a selfreliant assessment of capacity? Aim of the study: Assessment of the group-internal degree of inhomogeneity concerning the capacity during ascents of commercially guided ski tours. _______________________________________________________ N. Reichwein, Inhomogeneity during ski tour ascents, Bohinjska Bela/ Slowenia

  6. introduction,aim, material & methods, results, discussion, conclusion Three commercially guided ski tours: 1680 – 3180 masl T1: n= 6 T2: n= 5 T3: n= 10 → → → n1= 4 (3♀,1♂, age: 36 ± 5,83, BMI: 23 ± 1,77) n2= 4 (4♀, age: 35,5 ± 5, BMI: 22,6 ± 1,51) n3= 4 (2♀,2♂, age:49 ± 8,37, BMI: 23,8 ± 2,14) Physiological strain parameters: - average heart rate - lactate values Degree of inhomogeneity: Coefficient of variation V Subjectively perceived exertion level: - modified RPE-scale 1-15 _______________________________________________________ N. Reichwein, Inhomogeneity during ski tour ascents, Bohinjska Bela/ Slowenia

  7. introduction,aim, material & methods, results, discussion, conclusion 32,2% of all lactate values exceed 4mmol/l lactate threshold

  8. introduction,aim, material & methods, results, discussion, conclusion Organizer´s aim: minimize safety risks during ski tour Ski tour requirements ↓ ? Decision of psychological & physiological suitability to ski tour´s requirements… ¿ ↓ homogenous group composition ↓ ↓ … is left up to leisure sport orientated competitioners = frequently inexperienced laypersons - detailed tour description on organizer´s homepage - verbally given tour information via telephone or e-mail _______________________________________________________ N. Reichwein, Inhomogeneity during ski tour ascents, Bohinjska Bela/ Slowenia

  9. introduction,aim, material & methods, results, discussion, conclusion State: Group internal inhomogeneity under same conditions • Explanations: • Participants made blatant misjudgement of their capacity requirements • - Pre-description of the tour does not last out a satisfactiory homogeneity of capacity within ski touring group _______________________________________________________ N. Reichwein, Inhomogeneity during ski tour ascents, Bohinjska Bela/ Slowenia

  10. introduction,aim, material & methods, results, discussion, conclusion Suggested solutions • for responsible organizers/ mountain guides: • → performance test under real conditions • → tour adaption to current state of capacity afterwards 2) appeal to participants: → truthful self-estimation of one´s state of capacity → avoidance of fake ambition at the interpretation of tour description _______________________________________________________ N. Reichwein, Inhomogeneity during ski tour ascents, Bohinjska Bela/ Slowenia

  11. Thank you for your attention! _______________________________________________________ N. Reichwein, Inhomogeneity during ski tour ascents, Bohinjska Bela/ Slowenia

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