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Robyn F. Madden, Kelly A. Erdman, Jane Shearer, Lawrence L. Spriet, Reed Ferber, Ash T. Kolstad, Jessica L. Bigg, Alexander S.D. Gamble and Lauren C. Benson

Ice hockey is characterized by short bursts of high-intensity physical exertion, 1 which requires athletes to simultaneously execute skilled maneuvers. 2 In addition, physicality (ie, body contact) is a necessary component of game play, particularly in men’s ice hockey where body checking is

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Vera L. Talis and Irina A Solopova

We investigated the development of postural reactions induced in standing subjects by Achilles tendon vibration. We compared vibratory reactions in 3 different conditions: normal standing, standing near support, and when the solid support being protracted forward changed the initial posture. Additional support for the back was placed at subject's sacral or shoulder level. In the easy standing condition, the postural vibration reaction consists of progressive backward upper body movement. When the body contacted the additional support on the sacral level during the vibratory reaction, the movement of the upper body continued in most of the subjects. This was accompanied by an increase of pressure on the toes. When the support was applied at the shoulder level, the body motion reversed its direction in half of the subjects. In this case, backward-forward oscillations occurred near the support. The initial change of body-support interaction did not influence the ensuing vibration reaction; namely the reaction was similar to that with the support near to the body at the sacral level. Our data demonstrate that the vibration-induced reaction is not a local reaction limited to one joint, but a complex postural synergy that involves both leg and trunk muscles and integrates the information from touch and pressure afferents of the upper body.

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In the JAPA supplement (JAPA 24[Suppl.], June 2016), which contained the abstracts for the 9th World Congress on Active Ageing, an incorrect abstract appears on page S102. This abstract, “An Australian Unique Way of Addressing the Research—Selling Health and Wellness to the Over 60s with Active Life Weekends”, by B. Lord, was a duplicate of an earlier printed abstract. The correct abstract appears below. We apologize for this error. The online version has been corrected. Lifeball: A Ball Game for the Active Aged Lord, Brian L. Healthy Lifestyle Health Promotion Services; rayna@albury.net.au Introduction: Physical activity has been identified as being critical in maintaining wellbeing into our later years. Physical activity within a social context—with other people, in a group—has been shown to have benefits over and above that gained by activity partaken alone. Participation in team games can improve every aspect of physical fitness, and hence the quality of life for our older adults. Methods: Lifeball is a game based on netball and basketball, but its designer, Colleen Wilson-Lord OAM, has eliminated all their unsafe aspects. Lifeball is now played by over 2,000 people in over 70 centres throughout Australia. With no running, no body contact, no high passes, no bounce passes, and no walking backwards, it is a very safe game, yet it incorporates a great deal of tactical enterprise and is a most inclusive game. Everyone on the team must handle the ball, and certain skills must be performed before a goal can be attempted. Even the goal is novel—it is only eye-height, but is set back from the court by a couple of metres. Six players constitute a team and the playing court is divided into three zones with two players from each team in each zone. One player from each team has a “roving commission”, allowed in two zones (the defensive and centre zone). Another unique rule is that players must change positions at the end of each playing period; this ensures everyone plays in every position during the game. Results: Recent research in Western Australia showed that when people take up Lifeball, there is a positive shift in variables associated with social isolation and loneliness. Other research in New South Wales by the Department of Health showed similar outcomes in socialisation and health—both physical and mental. Conclusion: Despite Lifeball’s simplicity, players feel that it is a “main stream” sport. It looks and feels like a regular sport and so players regard themselves as being part of the recognised fabric of society. Lifeball is the game you play for Life. http://dx.doi.org/10.1123/japa.2016-0210

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Feng-Hua Tsai, I-Hua Chu, Chun-Hao Huang, Jing-Min Liang, Jia-Hroung Wu and Wen-Lan Wu

be performed when athletes are at a distance that is too close to touch their opponent. During competitions, kendo athletes make body contact after Men attacking, then use Hiki Waza to retreat rapidly. Together with backward stepping, they use the left leg to propel and accelerate the body forward

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Brittany M. Ingram, Melissa C. Kay, Christina B. Vander Vegt and Johna K. Register-Mihalik

injuries, including sports-related concussions. Body checking in ice hockey is a tactic used to slow and/or stop an opposing player involving body contact. Current studies have identified body checking as the most common cause of sports-related concussion in ice hockey across all divisions and levels. 2

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Patricia M. Kelshaw, Trenton E. Gould, Mark Jesunathadas, Nelson Cortes, Amanda Caswell, Elizabeth D. Edwards and Shane V. Caswell

crossing an “imaginary” 7-in sphere encompassing a player’s head. 8 Despite the prohibition of body contact in women’s lacrosse, and the sphere rule, incidental head contact does occur, and subsequent concussions have been reported. 2 , 3 , 9 Recent studies incorporating wearable sensors and video

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John M. Rosene, Christian Merritt, Nick R. Wirth and Daniel Nguyen

. 15 As a helmeted sport where body contact is legal, men’s lacrosse players are exposed to repeated subconcussive impacts to the head. The potential implications resulting from these head impacts in men’s lacrosse remains undetermined, yet repeated head impacts have been reported to lead to

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Robert Rodriguez

Research Ice hockey and soccer are both dynamic sports that involve repetitive directional changes, body contact, kicking, and striding in an unpredictable environment. This increases the demand on the hips and adductor musculature to control for high acceleration and deceleration forces. 8 Understanding

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T. Christopher Greenwell, Jason M. Simmons, Meg Hancock, Megan Shreffler and Dustin Thorn

” based on social constructions of gender roles and stereotypical expectations associated with those roles ( Koivula, 2001 ). Metheny ( 1965 ) suggested masculine sport is characterized by four characteristics: (a) physical overpowerment of opponent(s) by body contact, (b) direct use of bodily force to

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Adam Douglas, Michael A. Rotondi, Joseph Baker, Veronica K. Jamnik and Alison K. Macpherson

movements were performed. High-intensity movements included rapid accelerations and decelerations, high-intensity skating, rapid changes of direction (skating based or body contact), and high-intensity shots. This count was derived from IMA data. For an event to be recorded as an explosive effort, a