Background: In team handball an anterior cruciate ligament (ACL) injury often occurs during landing after a jump shot. Many intervention programs try to reduce the injury rate by instructing the athletes to land safer. Video feedback is an effective way to provide feedback although little is known about its influence on landing technique in sport-specific situations. Objective: To test the effectiveness of a video overlay feedback method on landing technique in elite handball players. Method: Sixteen elite female handball players were assigned to a Control or Video Group. Both groups performed jump shots in a pre-test, two training sessions (TR1 & TR2) and a post-test. The Video Group received video feedback of an expert model with an overlay of their own jump shots in TR1 and TR2 whilst the Control Group did not. Main outcome measures were sagittal ankle, knee and hip angles during initial contact (IC), maximum (MAX) and range of motion (ROM), in addition to the Landing Error Scoring System (LESS) score. One 2x4 repeated measures ANOVA was conducted to analyze group, time and interaction effects of all kinematic outcome measures and the LESS score. Results: The Video Group displayed significant improvement in knee and hip flexion at IC, MAX and ROM. In addition, MAX ankle flexion and their LESS score improved an average of 8.1 in the pre-test to 4.0 in the post-test. When considering performance variables, no differences between Control Group and Video Group were found in shot accuracy or vertical jump height, whilst horizontal jump distance in the Video Group became greater over time. Conclusion: Overlay visual feedback is an effective method to improve landing kinematics during a sport-specific jump shot. Further research is now warranted to determine the long-term effects and transfer to training and game situations.
The artcle describes the outcomes of a pilot study on professional development of teachers. The project was initiated by the school management. Nine teachers volunteered to work on their professional development in a programme consisting of: meetings discussing on relevant teacher topics meetings discussing video fragments of own performances meetings exploring ways to coach each other and how to use videotapes for feedback peer-coaching-sessions in small groups. Within these groups three teachers took turns in different roles: trainee, coach and observer. Aims of the study are: to develop a coaching programme, to describe extensively the process and the outcomes in order to identify the main factors influencing the learning processes of teachers in peer coaching settings with video feedback.
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Background: Given the demands posed by excessive practice quantities in modern dance, physical and mental health can be compromised. Therefore, there is a need to consider how quality of practice may be improved and possibly even reduce training times. Sports literature has shown that instructions and feedback given by coaches can have an effect on the quality of training and influence self-regulation and the performance of athletes. However, currently little is known about the use of instructions and feedback by dance teachers. The aim of the current study was, therefore, to examine the type of instructions and feedback given by dance teachers during various dance classes. Methods: A total of six dance teachers participated in this study. Video and audio recordings were made of six dance classes and two rehearsals at a contemporary dance university. The dance teacher’s coaching behavior was analyzed using the modified Coach Analysis and Intervention System (CAIS). Additionally, feedback and instructions were also examined in terms of their corresponding focus of attention. Absolute numbers, as well as times per minute (TPM) rates were calculated for each behavior before, during, and after an exercise. Absolute numbers were also used to calculate ratios of positive-negative feedback and open-closed questions. Results: Most feedback comments were given after an exercise (472 out of 986 total observed behaviors). Improvisation had the highest positive-negative feedback ratio (29) and open-closed questions ratio (1.56). Out of the focus of attention comments, internal focus of attention comments were used most frequently (572 out of 900). Discussion/conclusion: The results make clear that there is a large variability in instructions and feedback over teachers and classes. Overall, there is room for improvement toward a higher positive-negative feedback ratio, a higher open-closed question ratio and producing more comments eliciting an external focus of attention.
Leerkrachten van basisscholen ervaren handelingsverlegenheid bij het lesgeven aan leerlingen met autisme spectrum stoornis (ASS). Dit is een urgent probleem, want sinds de invoering van de Wet Passend onderwijs in 2014 zijn leerkrachten in het regulier onderwijs zelf verantwoordelijk voor het aanbieden van een passend onderwijsaanbod voor alle kinderen en worden leerkrachten in het speciaal (basis-)onderwijs geconfronteerd met zwaardere problematiek. Bovenstaande sluit aan bij de thema?s ?adaptief onderwijzen? en ?talentontwikkeling?, die hoog op de agenda staan van landelijke en regionale onderwijsinstellingen. De vraag die leerkrachten stellen is: Hoe zorg ik ervoor dat kinderen met ASS zelfstandig werken in de klas, zodat zij het optimale halen uit zichzelf en mee kunnen komen met de rest van de klas? Een voorbeeld van deze vraag is te vinden op zien op deze video: https://vimeo.com/138308381 (Wachtwoord: Raak040915). Om deze vraag te beantwoorden, wordt in dit project de TalentenKracht werkwijze uitgewerkt. Hiermee leert de leerkracht de verborgen talenten boven te halen bij de leerling met ASS en tegelijkertijd het talent bij zichzelf om de leerling met ASS adequaat te kunnen coachen. Hierdoor ontstaat een positieve talentspiraal. Het project wordt uitgevoerd door een consortium bestaande uit de schoolbesturen van RENN4 Noord-Nederland, SCSOG Groningen en COG Assen, het lectoraat Leren en Gedrag ingebed in het Lectoraat Integraal Jeugdbeleid (IJB), de Pedagogische Academie en Toegepaste Psychologie van de Hanzehogeschool Groningen, Orthopedagogiek van de Rijksuniversiteit Groningen en de onderzoeksafdeling van RENN4. Na afloop van dit project kunnen leerkrachten een positieve talentspiraal op gang brengen in de dagelijkse klassenpraktijk. Ook hebben zij de beschikking over een methode netwerkleren, waarmee op een duurzame manier gewerkt kan worden aan professionalisering wat betreft het werken met kinderen met ASS. Via diverse kanalen wordt de kennis beschikbaar gesteld voor een bredere groep scholen en het onderwijs- en onderzoeksveld.
