This paper deals with motion analysis of carving and skidding turns focusing acceleration components using actual gliding information. This information is measured by the inertial and magnetic field sensors attaching to the ski boot and the GPS receiver attaching to the top of skier's head. We conducted the measurement experiment of carving and skidding turns by a skier gliding on an actual snow field. The gliding velocity in slope coordinate was estimated by the accelerometer output, the GPS receiver output and the posture information, and the sum of centrifugal acceleration and Coriolis acceleration was calculated by the angular velocity, the gliding velocity and the posture information.
　The gliding velocity in slope coordinate system was compared the gliding velocity in skier's coordinate system, we indicated that the vertical component of gliding velocity in skier's coordinate was included a part of lateral direction of gliding velocity in slope coordinate system. We represented that the cross product of angular velocity and the gliding velocity corresponds to the sum of centrifugal and Coriolis accelerations, and we indicated the centrifugal and Coriolis accelerations are the important factors for keeping the gliding velocity or accelerating the skier.
　These results can be obtained from the systems used in this study and the analysis method indicated the effectiveness and the validity. The proposed method that can analyze the major features of skiing turn is able to quantitatively evaluate the skill.

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The study was aimed to clarify the relationship between the laboratory fitness test for junior alpine ski racers and the field test which is recently reported by Takeda et al.（ 2021）, and to suggest ideal fitness test to estimate skiing performance for junior alpine ski racers. Twelve male and eight female junior high school athletes participated in this study. For the laboratory test, the vertical jump, the isokinetic knee extension strength, the maximal anaerobic power test, the bending jump test, the hexagonal jump test, the hexagonal obstacle jump test, the Wingate 40s test, the high box 90s test（ HB90）, maximal oxygen consumption （MOC）, and the standing trunk flexion in laboratory （ Stand-T-Fl-Lab） were measured. As for skiing performance, both of slalom（ SL） and giant slalom（ GS） seasonal points provided by the International Ski Federation（ FIS） and the Ski Association of Japan（ SAJ） were measured. To clarify the correlation between the laboratory test and field test, the field test data were reported by Takeda et al.（ 2021） were used. To clarify a relationship between the laboratory test and the field test, and skiing performance with the laboratory test, Pearson's correlation coefficient was tested. As a result, the HB90, MOC and Stand-T-Fl-Lab test were correlated with High box jump test 60s （HB60）, 20-m Shuttle run and Standing trunk flexion in both sexes, respectively. The other correlations between the laboratory test and the field test reported by Takeda et al.（ 2021） were observed, however, different between the sexes. The Figure eight running and HB60 reported by Takeda et al. （ 2021） were correlated to SL for males and the One leg lateral hopping test reported by Takeda et al.（ 2021） and MOC were correlated to both SL and GS for females.

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Banff in Canada conducted a bid campaign for the host city for the XI Olympic Winter Games in 1972, but Banff did not acquire the hosting rights. According to previous studies, the Calgary Olympic Development Association（CODA）, the candidate committee for Banff, and the Canadian Olympic Association（COA）, the National Olympic Committee in Canada, were subjected to protests by environmental groups and naturalists regarding construction of the facilities. Avery Brundage, president of the International Olympic Committee（IOC）, was concerned about this situation. On the other hand, In Sapporo which was the host city, Brundage and the organizing committee in Sapporo had underwater negotiations on the request for environmentalists to change the stadium after deciding the host city.
　The purpose of this study is to clarify the negotiations between Brundage with Edger Davis, the president of CODA, and James Worrall, the president of COA, concerning the construction of facilities and nature conservation in Banff.
　　　The results of this study are summarized as follows:
　　　Davis informed Brundage that CODA created opportunities for discussions with environmental groups and naturalists to reject protests of them. Davis and Worrall argued Brundage that naturalists exaggerated to the effects on the environment.
　　　Brundage showed some understanding concerning measures by CODA and COA. However, he again received protests. He was concerned about protests during the Games. Therefore, he informed Worrall that he reported the existence of protests concerning Banff's candidacy in a meeting of IOC.
　　　Worrall accepted the existence of protests by environmental groups and naturalists concerning Banff's candidacy. Nevertheless, he regarded the protest movements as a minority opinion and argued against them with support from the Canadian government.

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As skiing is a slippery and unstable movement on a snowy slope, and is a movement due to gravity rather than one's own force, it is important to eliminate various sensory deviations that the learner has and lead to skill acquisition in the instruction of skiing. The purpose of this research is to clarify the learning process to obtain sensory awareness and understanding of the deviations that ski beginners face, and to obtain clues for ski instruction. Firstly, in this study, the sensory deviations of the learner in the ski learning scene were organized into the following three points and set as an analysis framework. （1）The difference between learner's desired movements and the actual ski movement, （2）The difference between the desired movement and the actual body movement, and （3）The difference between what you know and what you can actually do. Then, the actual ski lessons were used as the survey field, and the introspection report that the eight subjects described after each practice, the retrospective report submitted after the program, the observation record during the snow training by the instructor, and the observation records of the retrospective meeting held after dinner, were used to elucidate the factors that improve and hinder the improvement of the learners. As a result, although there are individual differences among learners, learning processes derived from deviations such as approach to one's own senses, increase and complexity of conscious senses, improvement of operability, and occurrence and recognition of new deviations became clear. Furthermore, based on such a learning process, it was suggested that in ski instruction, it is important to have a leadership relationship that visualizes such deviations and promotes recognition.

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　In this study, the content and methods of coaching male athletes who made great strides and had received coaching supported were discussed from the perspective of movement theory. Results showed it is necessary to form players' self-observation ability to improve the quality of their skills through training. To form this self-observation ability, we must pay attention to over-coaching and coaching that allows athletes to think for themselves and deepen their technical awareness. Additionally, coaches must improve their ability to observe others based on their “ability to perceive movement” and “movement empathy ability.” In coaching situations, it was important for coaches and athletes to understand each other's technical issues through “kinasthese-communication.” In this case, it is necessary to create a state in which athletes resonate with what coaches present and work on improving skills. The key to a coach's advice is to give theoretical instruction in a kinasthese-language based on the characteristics of the athlete.

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