Background Physical activity after bariatric surgery is associated with sustained weight loss and improved quality of life. Some bariatric patients engage insufficiently in physical activity. The aim of this study was to examine whether and to what extent both physical activity and exercise cognitions have changed at one and two years post-surgery, and whether exercise cognitions predict physical activity. Methods Forty-two bariatric patients (38 women, 4 men; mean age 38 ± 8 years, mean body mass index prior to surgery 47 ± 6 kg/m²), filled out self-report instruments to examine physical activity and exercise cognitions pre- and post surgery. Results Moderate to large healthy changes in physical activity and exercise cognitions were observed after surgery. Perceiving less exercise benefits and having less confidence in exercising before surgery predicted less physical activity two years after surgery. High fear of injury one year after surgery predicted less physical activity two years after surgery. Conclusion After bariatric surgery, favorable changes in physical activity and exercise cognitions are observed. Our results suggest that targeting exercise cognitions before and after surgery might be relevant to improve physical activity.
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Purpose: To examine the effects of different small-sided games (SSGs) on physical and technical aspects of performance in wheelchair basketball (WB) players. Design: Observational cohort study. Methods: Fifteen highly trained WB players participated in a single 5v5 (24-s shot clock) match and three 3v3 SSGs (18-s shot clock) on a (1) full court, (2) half-court, and (3) modified-length court. During all formats, players’ activity profiles were monitored using an indoor tracking system and inertial measurement units. Physiological responses were monitored via heart rate and rating of perceived exertion. Technical performance, that is, ball handling, was monitored using video analysis. Repeated-measures analysis of variance and effect sizes (ESs) were calculated to determine the statistical significance and magnitude of any differences between game formats. Results: Players covered less distance and reached lower peak speeds during half-court (P ≤ .0005; ES ≥ very large) compared with all other formats. Greater distances were covered, and more time was spent performing moderate- and high-speed activity (P ≤ .008; ES ≥ moderate) during full court compared with all other formats. Game format had little bearing on physiological responses, and the only differences in technical performance observed were in relation to 5v5. Players spent more time in possession, took more shots, and performed more rebounds in all 3v3 formats compared with 5v5 (P ≤ .028; ES ≥ moderate). Conclusions: Court dimensions affect the activity profiles of WB players during 3v3 SSGs yet had little bearing on technical performance when time pressures (shot clocks) were constant. These findings have important implications for coaches to understand which SSG format may be most suitable for physically and technically preparing WB players. DOI: https://doi.org/10.1123/ijspp.2017-0500 LinkedIn: https://www.linkedin.com/in/rienkvdslikke/ https://www.linkedin.com/in/moniqueberger/
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In elite basketball, players are exposed to intensified competition periods when participating in both national and international competitions. How coaches manage training between matches and in reference to match scheduling for a full season is not yet known. Purpose: First, to compare load during short-term match congestion (ie, ≥2-match weeks) with regular competition (ie, 1-match weeks) in elite male professional basketball players. Second, to determine changes in well-being, recovery, neuromuscular performance, and injuries and illnesses between short-term match congestion and regular competition. Methods: Sixteen basketball players (age 24.8 [2.0] y, height 195.8 [7.5] cm, weight 94.8 [14.0] kg, body fat 11.9% [5.0%], VO2max 51.9 [5.3] mL·kg−1·min−1) were monitored during a full season. Session rating of perceived exertion (s-RPE) was obtained, and load was calculated (s-RPE × duration) for each training session or match. Perceived well-being (fatigue, sleep quality, general muscle soreness, stress levels, and mood) and total quality of recovery were assessed each training day. Countermovement jump height was measured, and a list of injuries and illnesses was collected weekly using the adapted Oslo Sports Trauma Research Center Questionnaire on Health Problems. Results: Total load (training sessions and matches; P
Trainers/coaches van sporttalenten hebben een complexe taak. Sporttalenten moeten hard trainen om de volgende stap te maken in hun sportcarrière of om de aansluiting bij de top te halen. Complexe taken waarmee de trainer te maken krijgt zijn onder andere: het vinden van de juiste balans tussen techniek, tactiek, mentale en andere trainbare factoren; stellen van grenzen aan fysieke en mentale vermogen van sporters; afstemmen op pieken in groei, lichamelijke en mentale ontwikkeling; bepalen van trainingsbelasting in relatie tot (individuele) belastbaarheid; afstemmingsproblemen tussen studie, sport en privéleven. Het risico van een disbalans tussen belasting en belastbaarheid is continu aanwezig met alle negatieve gevolgen van dien. Hierbij valt te denken aan sportblessures, niet optimaal presteren als gevolg van over- of ondertraining of drop out. Om goede sturing te kunnen geven aan dit proces, monitoren veel trainers de individuele belasting en belastbaarheid van hun sporters. Echter ontbreekt het hen aan de kennis, knowhow en tijd om de verzamelde data te verwerken, te interpreteren en om te zetten naar onderbouwde trainingsaanpassingen. Deze handelingsverlegenheid van trainers/coaches is vertaald naar de volgende onderzoeksvraag die centraal staat in het huidige RAAK-project: Hoe kunnen trainers/coaches beter toegerust worden om een optimale balans tussen individuele belasting en belastbaarheid van sporttalenten te realiseren met gebruikmaking van feedback van trainingsdata en trainingssturing. In dit project gaan we, mede op basis van input van trainers/coaches, een scholing ontwikkelen ter bevordering van trainingssturing. Parallel hieraan wordt een feedback dashboard ontwikkeld (Coach in Control dashboard) dat data van individuele sporter geautomatiseerd en betekenisvol rapporteert, visualiseert en beschikbaar maakt voor trainers/coaches. Dit gebeurt in de context van de cyclische sporten waarbij de casus plaatsvindt binnen het langebaanschaatsen en shorttrack. De trainers/coaches worden doorlopend actief betrokken bij de ontwikkeling en het testen van prototypes van de scholing (blended) en het feedback dashboard.
