| 1. |
- Brown, Jamie S., et al.
(author)
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Clinical versus MRI grading of the medial collateral ligament in acute knee injury
- 2024
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In: Research in Sports Medicine. - : Informa UK Limited. - 1543-8627 .- 1543-8635. ; 32:1, s. 12-16
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Journal article (peer-reviewed)abstract
- Sensitivity, specificity, and agreement between clinical and magnetic resonance imaging (MRI) gradings of the medial collateral ligament (MCL) after acute knee injury were evaluated in 362 patients. Ninety-seven per cent were injured during sports/recreation. Sensitivity and specificity of MRI for grade II or III MCL injury was 68% (95% CI 58–77%) and 90% (95% CI 86–93%), respectively. Weighted Kappa analysis showed moderate agreement between clinical and MRI grading (0.56 [95% CI 0.48–0.65]). Findings were similar for patients with and without concomitant cruciate ligament rupture (0.57 [95% CI 0.48–0.66] and 0.55 [95% CI 0.35–0.75], respectively) and for specialists in orthopaedics and knee sub-specialists (0.55 [95% CI 0.39–0.70] and 0.57 [95% CI 0.47–0.67], respectively). Agreement between clinical and MRI grading of MCL injuries by orthopaedic specialists in a general hospital is at least moderate regardless of the presence of cruciate ligament injury.
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| 2. |
- Kalén, Anton, et al.
(author)
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Effects of age on physical and technical performance in National Basketball Association (NBA) players
- 2021
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In: Research in Sports Medicine. - : Taylor & Francis. - 1543-8627 .- 1543-8635. ; 29:3, s. 277-288
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Journal article (peer-reviewed)abstract
- This study evaluated the effects of age on physical and technical game performance for different positions in professional basketball players. In this cross-sectional study, a total of 25,523 individual match observations were undertaken on players from the 2018–19 NBA season. The players were classified into four age groups (19–22 years, 23–25 years, 26–29 years, and 30–42 years). Differences in physical and technical match performance were analysed for the following variables: distance covered, average speed, minutes played, points scored and playing efficiency. The results showed that players older than 30 covered shorter distance and had lower average speed than younger players, that guards and forwards older than 26 played more minutes per game than younger ones, and that guards older than 26 scored more points and were more efficient than younger one, while centres age 23–25 scored more points per games than centres older than 30. In conclusion, physical performance declined with age, and while playing time and technical performance generally remained stable or increased, especially for guards. However, there was some evidence of decline for centres.
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| 3. |
- Kurpiers, Nicolas, et al.
(author)
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Perspectives for Comprehensive Biomechanical Analyses in Mogul Skiing
- 2009
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In: Research in Sports Medicine. - London : Taylor & Francis. - 1543-8627 .- 1543-8635. ; 17:4, s. 231-244
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Journal article (peer-reviewed)abstract
- The purpose of this study was to examine the effects of using aforce measurement device on riding technique in mogul skiing. Amock-up version of such a device was positioned between ski bootand binding. Data on three-dimensional kinematics and perceptionwere collected for eight subjects skiing down a mogul course.Parameters analysed were knee angle, side and forward lean ofthe trunk and hip, and the path of the body’s centre of mass. A perceptionquestionnaire was used on selective aspects to assess theskiers’ perception of the performances. Perception ratings showedno significant detrimental effects. All assessed components showeda trend of improvement from the first to last run, thus suggestingfamiliarisation was achieved. Kinematic analysis revealed that nosignificant alterations occurred. In conclusion, it is intended toutilise a functional force plate similar to the one presented byKiefmann et al. (2006) for future studies in freestyle skiing.
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| 4. |
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| 5. |
- Rago, V., et al.
(author)
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Influence of opponent standard on activity profile and fatigue development during preseasonal friendly soccer matches: a team study
- 2018
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In: Research in Sports Medicine. - : Informa UK Limited. - 1543-8627 .- 1543-8635. ; 26:4, s. 413-424
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Journal article (peer-reviewed)abstract
- We examined the influence of competitive standard of the opponent on activity profile and fatigue during preseason friendly soccer matches. Time motion analysis was performed in a male professional soccer team (N=14) during six friendly games played against professional, semi-professional and amateur-level opponents (PL, SPL and AL). The reference team covered higher acceleration distance, acceleration and deceleration 2ms(-2) distance against PL than AL (ES=0.77 to 0.91). Acceleration and deceleration distance 2ms(-2) was also higher (ES=0.66 to 0.84) against SPL than AL. Greater decreases in total distance, distance 16kmh(-1) and >22kmh(-1), total acceleration and deceleration, acceleration and deceleration distance 2ms(-2) (ES=0.84 to 2.20) were also observed during PL compared to AL opponent. Playing against a stronger opponent seems to be more physically demanding, with special emphasis on events related with change of velocity (accelerations and decelerations). Declines in physical performance appear more evident against a higher opponent.
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