BackgroundThere is limited knowledge about key injury risk factors in alpine ski racing, particularly for World Cup (WC) athletes.ObjectiveThis study was undertaken to compile and explore perceived intrinsic and extrinsic risk factors for severe injuries in WC alpine ski racing.MethodsQualitative study. Interviews were conducted with 61 expert stakeholders of the WC ski racing community. Experts’ statements were collected, paraphrased and loaded into a database with inductively derived risk factor categories (Risk Factor Analysis). At the end of the interviews, experts were asked to name those risk factors they believed to have a high potential impact on injury risk and to rank them according to their priority of impact (Risk Factor Rating).ResultsIn total, 32 perceived risk factors categories were derived from the interviews within the basic categories Athlete, Course, Equipment and Snow. Regarding their perceived impact on injury risk, the experts’ top five categories were: system ski, binding, plate and boot; changing snow conditions; physical aspects of the athletes; speed and course setting aspects and speed in general.ConclusionsSevere injuries in WC alpine ski racing can have various causes. This study compiled a list of perceived intrinsic and extrinsic risk factors and explored those factors with the highest believed impact on injury risk. Hence, by using more detailed hypotheses derived from this explorative study, further studies should verify the plausibility of these factors as true risk factors for severe injuries in WC alpine ski racing.

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The purpose of this study was to assess whether a guided alpine skiing intervention lasting 12 weeks has an impact on psycho-social dimensions, measured by subjective assessments, of individuals who are 60+ years of age. A number of well-established questionnaires were used to measure well-being, life satisfaction, self-concept, health status, depression and self-efficacy. The physical self-concept in the domain "strength" increased significantly in the intervention group from pre- to post-test and remained stable through the retention test, whereas the control group demonstrated nearly no alteration. A similar effect was obtained in life satisfaction for the dimension "friends and relatives." On the contrary, psycho-social aspects of the elderly were not negatively influenced. The subjects of this study had very high pre-test scores that might reflect a ceiling effect which, in turn, can explain the marginal positive impact of the intervention. The findings of this study argue for recommending a guided alpine skiing intervention for individuals who are 60 years of age and older with high values in psycho-social variables.

This investigation examined the relations between physical self-concept and physical fitness (endurance, balance, muscle strength, muscle power) for gaining knowledge about the interrelationship between subjective ratings and objective fitness scores in the elderly in three steps: (1) detecting correlations and changes in time, (2) clarifying the influence of gender, and (3) of a skiing intervention lasting 12 weeks. Physical self-concept was assessed using a modified version of the Physical Self-Concepts (PSK) scales (Stiller et al., 2004) reflecting three first-order factors (endurance, strength, general sportiness) and one second-order factor (global fitness). Objective fitness scores were obtained by VO(2 max), counter movement jump, concentric muscle strength, and static balance. The results reveal that elderly individuals' global physical self and general sportiness are mainly linked to VO(2 max) and concentric muscle strength. Global physical self is predicted by VO(2 max) in females and by physical strength (concentric muscle strength) in males, indicating gender differences. Over time, correlations between subjective ratings and objective fitness scores become stronger in the sense of convergent validity in the skiing intervention group, whereas convergent and divergent validity cannot be supported by data of the control group. In sum, physical self-concept is an important factor in the context of physical intervention programs in the elderly.

This study focused on the psychological and quality of life aspects of resuming alpine skiing practice after total knee arthroplasty (TKA) in elderly skilled skiers. Two data pools were used in order to analyze psychological states: (a) at the beginning, at the end, and 8 weeks after a 12-week skiing intervention; and (b) concerning diurnal variations of states (i.e., skiing days compared with everyday life during intervention and retention phase). In particular, effects of skiing on amount of physical activity and perceived exertion, perceived pain and knee function, and subjective well-being were analyzed using a control group design. Results reveal that the skiing intervention substantially increases the amount of physical activity by the intervention group (122.30 ± 32.38 min/day), compared with the control group (75.14 ± 21.27 min/day) [F (2, 32) = 8.22, P < 0.01, η(2)  = 0.34)]. Additionally, the analyses of psychological states demonstrated that skiing goes along with enhanced well-being and no significant impact on perceived pain, exertion or knee function. In sum, alpine skiing can be recommended for older persons with TKA with respect to well-being, perceived pain and knee function, and perceived exertion.

This article aims to (a) describe the study design of a 6‐year follow‐up multidisciplinary research project on aging, (b) report the psychosocial characteristics of the sample in detail, and (c) evaluate aging‐related changes of health, physical activity, and psychosocial characteristics in 10 young‐old (age at pre‐test: M ± SD = 63.2 ± 1.5) and 12 old‐old (age at pre‐test: M ± SD = 69 ± 2) individuals. Both age groups consist of individuals displaying a high health status, a high extent of physical activity, high levels of psychosocial properties in the dimensions of well‐being, life satisfaction, self‐concept, body image, self‐esteem, and self‐efficacy, as well as a low general depression index. Psychosocial characteristics demonstrated a stable pattern over a period of nearly 6 years in both age groups with the exceptions of physical activity, satisfaction with children, general depression, and self‐efficacy. Furthermore, physical self‐concept decreased in old‐old adults, whereas the young‐olds showed no change. We assume that a high psychosocial status and a physically active lifestyle play an important role for mastering aging successfully in two life phases, each of which has its own challenges for older individuals. The decline in the physical self‐concept of old‐olds is interpreted as a first sign of subjective aging. Its association with losses in physical performance should be addressed in future studies. Finally, aging‐related changes should be monitored on an individual level in order to capture the complex dynamic of aging that is not considered in analyses of between‐person differences or averages.

The paper focuses on long‐term changes in parameters of self‐perception (ie, physical self‐concept, self‐esteem, and self‐efficacy), physical activity, and its relationship to physical fitness of healthy and active old adults. The sample of 22 physically active and healthy elderly (age M t1  = 66.00) originates in an earlier skiing intervention study following a longitudinal study design with four time points of measurement over a period of 6 years. Self‐reports on physical self‐concept (PSK), general self‐esteem and self‐efficacy, and an activity index were assessed and compared to physical fitness data (VO 2max and muscle strength). Significant time effects (over 6 years) were obtained with respect to global physical self‐concept, endurance (PSK), and VO 2max. Muscle strength turned out to be stable over time. The positive correlations between VO 2max and the corresponding self‐concept evaluation of endurance abilities diminished across the 6 years. Self‐esteem correlated with the PSK scales and VO 2max. In contrast to our expectation, self‐esteem, self‐efficacy, and activity level hardly predicted changes in the PSK scales, VO 2max, and physical strength. Although VO 2max and some parameters of the physical self‐concept declined over the 6 years, results indicate that physical self‐concept, self‐esteem, self‐efficacy, physical fitness, and physical activity display a complex pattern. The decrease in self‐perception measured by the correlation of PSK and physical fitness suggests that self‐concept of old adults is not sensitive to changes in physical fitness.

The present study examined the effect of 4 physical-load conditions on interference control throughout a period of 45 min. A sample of 52 sport students was assigned to either a no, a low, an alternating low to moderate, or a moderate physical-load condition. A modified Eriksen-flanker task was administered in the preexercise period, 7 times during the exercise, and twice after completing the exercise. Significant interaction effects of time and condition, and significant time effects within condition on the reaction time of congruent stimuli and errors on incongruent stimuli, suggest a specific in-task effect of the alternating low to moderate and moderate physical-load conditions. Thus, it was concluded that moderate physiological arousal influences interference control by an increase of information-processing speed in tasks that require less cognitive control (congruent condition), which is at the expense of accuracy in cognitively more demanding tasks (incongruent condition).