Research in Sports Medicine最新文献

This case report details the conservative management of a complete adductor longus tendon tear in a semi-professional forward footballer. The injury occurred while reaching for the ball with the uninjured limb, with the injured limb in closed kinetic chain. After confirming the injury severity with a magnetic resonance scan, the medical team opted for a conservative approach due to the small tendon retraction. Treatment was based on task progression, ensuring the player could complete exercises with tolerated pain. Rehabilitation consisted of unsupervised gym and on-field exercises progressed separately, including overall strength, mobility, adductor strength, balance, plyometrics, running, kicking and small-sided games. Additionally, pain during the squeeze test and eccentric adduction strength were assessed at different points. The player returned to play 96 days after the injury and has remained active since. The framework supported a safe return to play without surgery or the need for supervised rehabilitation sessions.

This study aimed to investigate the acute local and remote effects of foam rolling (FR) applied to the knee flexors, and its influence on cervical spine range of motion (ROM). Given the anatomical continuity within the superficial back line, outcomes were also assessed at the cervical spine to explore potential myofascial chain-mediated effects. Thirty-seven participants (25.4 ± 4.28 years) completed two conditions: a control condition (CC) and an FR intervention applied exclusively to the right thigh's knee flexors. Outcome measures reported were collected both locally (right-knee flexors) and remotely (cervical spine) and included skin temperature (TsK), tissue hardness (TH), and ROM, assessed at baseline and immediately post-intervention. No significant changes in TsK were observed. TH significantly decreased in the biceps femoris (p < 0.001), semitendinosus/semimembranosus complex (p < 0.001) and right cervical region (p = 0.021), but not in the left cervical region (p = 0.279). All ROM measures showed statistically significant improvements following FR (p < 0.001 to p = 0.006), including right hip flexion, cervical flexion and extension, right and left cervical rotation, and right and left cervical inclination . FR acutely increased ROM both locally and remotely, accompanied by reductions in TH without changes in TsK. Notwithstanding the transmission of forces through myofascial chains remains a plausible explanation, the observed improvements in remote ROM, without a concomitant thermal change, may indicate the contribution of alternative mechanisms, such as neurophysiological adaptations, that warrant further investigation.

The purpose of this study is to determine the prior injury patterns in relationship to the subsequent new injuries of anterior cruciate ligament (ACL) tears within the National Basketball Association (NBA). A systematic search was performed of two publicly available online sources to aggregate the injury history of athletes who sustained anterior cruciate ligament tears within the National Basketball Association. To examine previous injury trends by mechanism of injury, each injury was then further sub-classified into three previously identified mechanisms: 1) single leg casting; 2) bilateral pro-hop; 3) single-leg landing after contact. One hundred and twenty-five occurrences of ACL injuries were reviewed between 1981 and 2023. For each ACL injury, the involved player's injury history was recorded including the injury report date, location, type/categorization, most recent game played, and days missed due to injury. Thirty-four ACL injuries were preceded by a time-loss injury (at least 1 game missed) within 90 days, including 14 within 30 days. Previous knee and/or ankle injuries occurred within one-year of 40% of the ACL tears. Understanding the link between previous minor and moderate injury and subsequent major injury will help practitioners better identify and stratify risk when considering return to competition.

Injuries are common in both artistic and rhythmic gymnastics due to intense training, biomechanics, and previous injuries. Despite different apparatus and movement patterns, both disciplines pose a high injury risk. This study compared injury prevalence, types, affected body regions, and risk factors between artistic and rhythmic gymnasts. A retrospective survey was conducted in gymnastics clubs with 92 female gymnasts (39 artistic, 53 rhythmic), aged 7-24 years. Since the data were not normally distributed, the Mann-Whitney U-test was used. Artistic gymnasts had a significantly higher injury rate (2.95 per career) compared to rhythmic gymnasts (0.96; p < .01). The Kruskal-Wallis test showed no significant differences across athlete categories (p = .07), but training frequency (p < .001) and experience level (p < .001) influenced injury numbers. Post hoc tests revealed that gymnasts training five times per week reported more injuries. Chi-square tests showed that shoulder, wrist, elbow, and ankle injuries were more common in artistic gymnastics. Artistic gymnasts also required more intensive treatments. Most injuries occurred during training. The most frequent treatment was rest with cooling and creams, followed by physical therapy. Recovery time was longer in artistic gymnasts, with some taking over six months to return.

Objective: To explore the MRI characteristics and associated factors of ankle injuries in amateur marathon runners through a prospective cohort study, with particular emphasis on the role of running pace.

Materials and methods: 72 amateur marathon runners as the study group, alongside 32 healthy volunteers serving as the control group. MRI findings and risk factors, including foot strike pattern, running pace (divided into < 6:00 min/s/km and ≥ 6:00 min/s/km), and running years, were analysed using chi-square tests.

Results: Amateur marathon runners exhibited higher prevalence of ankle injuries, including peritendinous effusion, chronic lateral collateral ligament injuries, and Achilles tendinopathy. Faster running pace ( < 6:00 min/s/km) was identified as a novel risk factor for anterior talofibular ligament injuries (78.2% vs. 60.0%, p = 0.039). Female sex was associated with calcaneofibular ligament injuries (p = 0.012), while non-rearfoot strike pattern and greater running years ( > 3 years) increased the risk of Achilles tendinopathy (p = 0.044 and p = 0.042, respectively).

Conclusion: Running pace emerged as a critical factor in anterior talofibular ligament injuries, highlighting the need to monitor training intensity alongside volume. These findings provide evidence for injury prevention strategies targeting running biomechanics and training parameters.

We aimed to assess the associations between physical activities of reference teams or the differences with their opponents, and the goals scored in professional soccer. Total distance (TD), distance >20 km/h (VHS) and goals scored during matches of the Serie-A by two Best and two Worst Teams and by their opponents were collected. Odds ratio (OR) of scoring goals when high or low levels of running, as well as higher or lower levels compared to their opponents, were estimated. Performing higher TD than the opponents increased the OR of scoring goals for Best and Worst Teams in 5-min (19.8 ± 5.2, 16.1 ± 7.3) and 15-min (11.5 ± 3.3, 11.5 ± 4.9) intervals. Performing more VHS than the opponents increased the OR of scoring for Best and Worst teams in 5-minute (3.7 ± 0.9, 2.5 ± 0.6) and for Best teams in 15-minute (3.3 ± 1.1) intervals. Odds of scoring were higher when relative differences in running activities between teams, instead of absolute levels, were considered.

To date, no literature exists on mountain biking injuries in coaches. This study described cross-country mountain biking injuries among coaches in National Interscholastic Cycling Association (NICA) sanctioned leagues from 2018 to 2022. Data were collected using the NICA injury surveillance system (ISS), a web-based injury and exposure reporting system for youth mountain biking, and were analysed using descriptive and univariate inferential statistics. A total of 401 injury events, including 661 distinct time-loss injuries, were reported in 59,545 coach-years over five seasons, resulting in an injury event proportion of 0.67%. The median time-loss due to injury was about 31 days for all injured coaches. The most commonly injured body part was shoulder/clavicle (32.7% of all injury events), followed by head/concussion (18.0% of all injury events) and wrist/hand (17.7% of all injury events). Fracture was the most common diagnosis (27.1% of all non-head injuries). Male coaches sustained upper-limb injuries significantly more often than did female coaches (62.9% vs. 51.5%; p = 0.044), whereas the rate of lower-limb injuries was significantly higher among female coaches than male coaches (33.3% vs. 17.9%; p = 0.001). Fractures and concussions are the most common diagnoses. These findings could be used for designing future injury prevention programmes.

Early post-traumatic osteoarthritis due to sports injuries is not rare and cell-based therapies are currently used in the treatment. Infrapatellar fat pad (IPFP), synovium (Sy) and subcutaneous adipose (S) tissues were obtained for analysis and MSC isolation. Osteoarthritic (OACs) and normal chondrocytes were co-cultured with MSCs for days seven and 14. Tumour necrosis factor alpha (TNFα), cartilage oligomeric matrix protein (COMP) and matrix metalloproteinase-3 (MMP-3) levels were analysed in the supernatants. Untargeted metabolomic analyses were performed in the collected tissues and co-culture media of the experiment groups. TNFα concentrations were lower in IPFP-MSC and Sy-MSC had lower than OACs on day 14. Likewise, MMP-3 decreased in the same groups on day seven and day 14 (p = 0.036). Metabolomic analysis showed distinct profiles in the tissues and metabolic changes in the co-culture media. The extracellular environment of MSCs derived from the IPFP, Sy and S have distinct features and effects on OACs.

This review aimed to identify risk factors for soccer injuries and provide researchers the needed elements to build a soccer-player's injury risk profile. An umbrella review was conducted following the PRIOR criteria (OSF registration link: https://osf.io/jr7xe/). A literature search was run to identify studies investigating soccer-related injury risk factors. We included systematic reviews published between 2013 and 2023 related to soccer and analysed the identified risk factors to classify these in intrinsic and extrinsic, group in categories and identify relationships between risk factors and injury location. Among 240 risk factors, 181 (75.4%) were classified as intrinsic and 59 (24.6%) as extrinsic. We grouped risk factors in 14 categories. Finally, we found relationships between risk factors and injury locations for 159 factors, with the knee representing the body area most affected by risk factors (N = 101), followed by the ankle (N = 65) and the thigh (N = 65).

The National Interscholastic Cycling Association Injury Surveillance System was implemented in 2018 to characterize acute traumatic injuries and identify associated risk factors in interscholastic youth cross-country mountain bike racing in the United States. Designated reporters collected data weekly during the 2018-2022 seasons. Variables collected included demographic information, injury characteristics, and other associated factors. In 119,098 student-athlete years, there were 2,655 injury events (injury event proportion = 2.23%). The wrist/hand was the most common body part injured (23.2%), followed by head/brain (23.0%), and shoulder/clavicle (15.9%). Males experienced a higher proportion of upper limb injuries than females (57.6% and 49.6%, respectively; p < 0.001); females experienced a higher proportion of lower limb injuries than males (29.5% and 24.8%, respectively; p = 0.020). Injury event proportion decreased by 27% (p < 0.001) during the study period. Acute traumatic injuries are common but injury proportion is low. Most injuries are minor but serious injuries do occur, resulting in time-loss from riding.