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  1. Article ; Online: Early physical activity after concussion is associated with sleep quality but not dizziness among adolescent athletes.

    Smulligan, Katherine L / Wingerson, Mathew J / Little, Casey C / Wilson, Julie C / Howell, David R

    Journal of science and medicine in sport

    2023  Volume 26, Issue 3, Page(s) 183–188

    Abstract: Objectives: To assess the association between early physical activity and post-concussion sleep quality, dizziness, and postural stability among adolescents with concussion compared to uninjured controls.: Design: Cross-sectional.: Methods: ... ...

    Abstract Objectives: To assess the association between early physical activity and post-concussion sleep quality, dizziness, and postural stability among adolescents with concussion compared to uninjured controls.
    Design: Cross-sectional.
    Methods: Adolescents ages 13-18 years assessed within 14 days post-concussion and uninjured controls. Those with concussion reported if they participated in physical activity between the concussion and assessment. Participants completed the Dizziness Handicap Inventory, Pittsburgh Sleep Quality Index, and single/dual-task tandem gait.
    Results: We enrolled 34 participants with concussion (early physical activity: n = 10, age = 15.8 ± 1.6 years, 70% female; no physical activity: n = 24, age = 16.0 ± 1.3 years, 50% female) and 21 uninjured controls (age = 16.0 ± 1.8 years, 48% female). Compared to controls, the no physical activity group reported worse sleep quality (Pittsburgh Sleep Quality Index: 3.8 ± 2.7 vs 8.0 ± 4.9 points, p = 0.002) and single-task tandem gait time (13.7 ± 3.4 vs 21.2 ± 8.1 s, p = 0.0006), while the early physical activity group did not (Pittsburgh Sleep Quality Index: 3.8 ± 2.7 vs 5.8 ± 3.2 points, p = 0.38; single-task tandem gait: 13.7 ± 3.4 vs 19.0 ± 5.7 s, p = 0.08). Compared to controls, early/no physical activity groups reported worse dizziness (Dizziness Handicap Inventory: 2.0 ± 3.4 vs 22.9 ± 23.8 vs 27.4 ± 19.2 points, p < 0.0001). There were no significant between-group differences for dual-task tandem gait (24.1 ± 8.0 vs 24.8 ± 6.2 vs 26.6 ± 7.3 s, p = 0.57).
    Conclusions: The no physical activity group reported worse sleep quality and slower single-task tandem gait than controls, while both groups reported similar sleep quality and tandem gait. Early physical activity may promote sleep quality and postural stability, or early physical activity may be a function of improved sleep and postural stability after concussion.
    MeSH term(s) Humans ; Female ; Adolescent ; Male ; Sleep Quality ; Cross-Sectional Studies ; Brain Concussion/complications ; Athletes ; Gait ; Dizziness/etiology ; Postural Balance ; Athletic Injuries
    Language English
    Publishing date 2023-02-08
    Publishing country Australia
    Document type Journal Article
    ZDB-ID 1437829-2
    ISSN 1878-1861 ; 1440-2440
    ISSN (online) 1878-1861
    ISSN 1440-2440
    DOI 10.1016/j.jsams.2023.02.001
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    Zs.A 4926: Show issues Location:
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  2. Article ; Online: Training volume recommendations and psychosocial outcomes in adolescent athletes.

    Little, Casey C / Howell, David R / Armento, Aubrey M / Sweeney, Emily A / Walker, Gregory A

    The Physician and sportsmedicine

    2022  Volume 51, Issue 5, Page(s) 420–426

    Abstract: Objectives: Researchers have recommended that youth athletes limit their practice volume to the number of hours/week that they are old in years. We examined sport perceptions, burnout, anxiety, and depressive symptoms among youth athletes who did and ... ...

    Abstract Objectives: Researchers have recommended that youth athletes limit their practice volume to the number of hours/week that they are old in years. We examined sport perceptions, burnout, anxiety, and depressive symptoms among youth athletes who did and did not report playing more hours/week of organized sports than their age.
    Methods: Uninjured athletes aged 13-18 years old completed questionnaires documenting demographics, sport participation volume, health and injury history, depressive symptoms, anxiety, burnout, and sport perceptions during a pre-participation physical examination. We grouped participants as those who reported more hours/week in organized sports than their age (exceeds age/volume recommendation) vs. those who reported equal/less hours/week in organized sports than their age (meets age/volume recommendation).
    Results: Of 161 participants, 21% (n = 33) were in the 'exceeds age/volume recommendation' group (age = 15.2 ± 1.3 years; 55% female; 18.7 ± 4.0 hours/week) and 79% (n = 128) were in the 'meets age/volume recommendation' group (age = 15.6 ± 1.2 years; 50% female; 10.2 ± 3.4 hours/week). A higher proportion of the 'exceeds age/volume recommendation' group agreed with the statement 'youth in my sport play too many games before college' than the 'meets age/volume recommendation' group (33% vs. 16%; p = 0.03). After adjusting for the effect of age, sport specialization level, and weight, exceeding age/volume recommendations was associated with the perception that youth in sports play too many games before college (aOR = 3.24; 95% CI = 1.26, 8.29; p = 0.01), while burnout (aOR = 0.99; 95% CI = 0.94, 1.06; p = 0.93), anxiety (aOR = 0.97; 95% CI = 0.84, 1.11; p = 0.65), and depressive symptoms (aOR = 0.90; 95% CI = 0.74, 1.10; p = 0.30) were not significantly related.
    Conclusion: Athletes who spend more hours in sport than their age appear to perceive their competition load during youth sports to be excessive. Coaches and providers should monitor athlete's training hours and perceptions of competition load to offer support and potentially prevent burnout development.
    MeSH term(s) Humans ; Adolescent ; Female ; Male ; Athletic Injuries/epidemiology ; Athletic Injuries/prevention & control ; Risk Factors ; Sports ; Athletes ; Youth Sports/injuries ; Specialization
    Language English
    Publishing date 2022-08-24
    Publishing country England
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 753046-8
    ISSN 2326-3660 ; 0091-3847
    ISSN (online) 2326-3660
    ISSN 0091-3847
    DOI 10.1080/00913847.2022.2113987
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  3. Article: Predicting Time to Evaluation After Pediatric Concussion: Factors Affecting Specialty Concussion Care.

    Wingerson, Mathew J / Magliato, Samantha N / Smulligan, Katherine L / Wilson, Julie C / Little, Casey C / Howell, David R

    Orthopaedic journal of sports medicine

    2023  Volume 11, Issue 8, Page(s) 23259671231186430

    Abstract: Background: The timing of clinical evaluation after pediatric concussion represents an important and potentially modifiable clinical milestone for diagnosis, selection of appropriate treatment pathways, and recovery prognosis. Patient demographics, ... ...

    Abstract Background: The timing of clinical evaluation after pediatric concussion represents an important and potentially modifiable clinical milestone for diagnosis, selection of appropriate treatment pathways, and recovery prognosis. Patient demographics, socioeconomic status, or medical history may affect the time to the initial evaluation and subsequently influence recovery outcomes.
    Purpose/hypothesis: The purpose of this investigation was to evaluate the association of patient characteristics with the time to specialty evaluation after a concussion. It was hypothesized that patients with a history of concussion, a preexisting relationship with our specialty concussion program, or a higher ZIP code-based income estimate would present for care more quickly after a concussion than patients without these characteristics.
    Study design: Cross-sectional study; Level of evidence, 3.
    Methods: Included were patients with a concussion between 6 and 18 years old who were seen for care at a single sports medicine center between January 1 and December 31, 2019. Patient demographic, socioeconomic, injury, and clinical characteristics were collected through a retrospective review of the medical records. The primary outcome was the number of days between the date of the concussion and the patient's initial specialty evaluation.
    Results: Overall, 220 patients (mean age, 14.4 ± 2.5 years; 46% female) were seen for care at a mean of 9.7 ± 5.6 days (range, 1-21 days) after concussion. A shorter time to specialty evaluation was associated with a history of concussion (β = -1.72 [95% CI, -3.24 to -0.20];
    Conclusion: A history of concussion and having a preexisting clinical relationship with the deparment were associated with a shorter time to evaluation after concussion. Referral from a primary care physician was associated with a longer time to evaluation. Issues may exist in the propensity to access care after an injury, resulting in delays for initiating early treatment.
    Language English
    Publishing date 2023-08-17
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2706251-X
    ISSN 2325-9671
    ISSN 2325-9671
    DOI 10.1177/23259671231186430
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  4. Article ; Online: Early Moderate to Vigorous Physical Activity After Concussion Is Associated With Faster Symptom Resolution Time.

    Rademacher, Jacob G / Wingerson, Mathew J / Smulligan, Katherine L / Little, Casey C / Wilson, Julie C / Howell, David R

    Journal of sport rehabilitation

    2023  Volume 32, Issue 7, Page(s) 790–796

    Abstract: Context: Early physical activity (PA) after concussion may promote symptom resolution. Prior studies have investigated exercise frequency/duration, yet precise PA intensity or volume required for optimal recovery requires further investigation. moderate ...

    Abstract Context: Early physical activity (PA) after concussion may promote symptom resolution. Prior studies have investigated exercise frequency/duration, yet precise PA intensity or volume required for optimal recovery requires further investigation. moderate to vigorous physical activity (MVPA) is beneficial for physical health. We investigated whether sedentary time, light activity time, MVPA time, or activity frequency in the weeks following concussion are associated with time to symptom resolution among adolescents.
    Design: Prospective cohort study.
    Methods: Adolescents 10-18 years of age were tested ≤14 days of concussion and followed until symptom resolution. At the initial visit, participants rated symptom severity and were provided wrist-worn activity trackers to monitor PA for the following week. PA behavior was categorized each day based on heart rate: sedentary (resting), light PA (50%-69% age-predicted max heart rate), and MVPA (70%-100% age-predicted max heart rate). Symptom resolution was defined as the date when participants reported cessation of concussion-like symptoms. Patients were not given specific PA instructions, though some may have received instructions from their physician.
    Results: Fifty-four participants were included in the study (54% female; mean age = 15.0 [1.8] y; initially assessed 7.5 [3.2] d after concussion). Female athletes recorded more sedentary time (900 [46] vs 738 [185] min/d; P = .01; Cohen d = 0.72), and less time in light PA (194.7 [64.5] vs 224 [55] min/d; P = .08; Cohen d = 0.48) and MVPA (23 [17] vs 38 [31] min/d; P = .04; Cohen d = 0.58) than male athletes. After adjusting for sedentary time, hours per day with >250 steps, sex, and initial symptom severity, more MVPA time was associated with faster symptom resolution time (hazard ratio = 1.016; 95% confidence interval, 1.001-1.032; P = .04).
    Conclusion: Our findings offer preliminary insight into how varying PA intensities affect concussion recovery, as MVPA may be a higher intensity than what is typically prescribed in concussion care.
    MeSH term(s) Adolescent ; Humans ; Male ; Female ; Infant, Newborn ; Prospective Studies ; Brain Concussion ; Exercise ; Wrist ; Upper Extremity
    Language English
    Publishing date 2023-06-09
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1106769-x
    ISSN 1543-3072 ; 1056-6716
    ISSN (online) 1543-3072
    ISSN 1056-6716
    DOI 10.1123/jsr.2023-0022
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  5. Article ; Online: SalterHarris fractures in paediatric skiers and snowboarders.

    Liu, Ruikang Kong Kong / Howell, David R / Pierpoint, Lauren A / Little, Casey C / Spittler, Jack / Khodaee, Morteza / Provance, Aaron

    Research in sports medicine (Print)

    2023  , Page(s) 1–8

    Abstract: The incidence of paediatric fractures among winter sport athletes is not adequately studied. Our objective was to categorize fractures that occurred in paediatric skiers and snowboarders at a single ski resort. X-rays of 756 skiers/snowboarders aged 3-17 ...

    Abstract The incidence of paediatric fractures among winter sport athletes is not adequately studied. Our objective was to categorize fractures that occurred in paediatric skiers and snowboarders at a single ski resort. X-rays of 756 skiers/snowboarders aged 3-17 diagnosed with a fracture were categorized using the Salter-Harris (SH) classification. SH fractures were seen in 158 (21%) patients, with 123 (77%) being Type II. There were no significant differences between patients with a SH fracture and patients with a non-SH fracture for age, sex, snowboarding or skiing, mechanism of injury, terrain or the resort conditions on the day of injury. The most common mechanism of injury was falling onto snow while collisions resulted in more severe injuries. Compared to fractures without growth plate involvement, a higher proportion of SH fractures were seen in the humerus, radius, fibula and thumb; a lower proportion of SH fractures were observed at the tibia and clavicle.
    Language English
    Publishing date 2023-05-24
    Publishing country England
    Document type Journal Article
    ZDB-ID 2116093-4
    ISSN 1543-8635 ; 1543-8627
    ISSN (online) 1543-8635
    ISSN 1543-8627
    DOI 10.1080/15438627.2023.2216823
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  6. Article ; Online: Comparison of Braces for Treatment of Sever's Disease (Calcaneal Apophysitis) in Barefoot Athletes: A Randomized Clinical Trial.

    Sweeney, Emily A / Little, Casey C / Wilson, Julie C / Potter, Morgan N / Seehusen, Corrine N / Howell, David R

    Journal of athletic training

    2022  Volume 58, Issue 5, Page(s) 437–444

    Abstract: Context: Sever's disease (calcaneal apophysitis) is a common condition in youth athletes, including those who participate in barefoot sports. Health care professionals often recommend that young athletes with Sever's disease wear heel cups in their ... ...

    Abstract Context: Sever's disease (calcaneal apophysitis) is a common condition in youth athletes, including those who participate in barefoot sports. Health care professionals often recommend that young athletes with Sever's disease wear heel cups in their shoes while active, but barefoot athletes are unable to use heel cups.
    Objective: To compare the efficacy of 2 braces used by barefoot athletes with Sever's disease.
    Design: Randomized controlled clinical trial.
    Setting: Pediatric sports medicine clinic.
    Patients or other participants: A total of 43 barefoot athletes aged 7 to 14 years were enrolled, and 32 completed the study (age = 10.3 ± 1.6 years; 29 girls, 3 boys).
    Intervention(s): Participants were randomized to the Tuli's Cheetah heel cup (n = 16) or Tuli's The X Brace (n = 16) group for use during barefoot sports over the 3-month study period.
    Main outcome measure(s): Participants completed self-reported assessments after diagnosis (baseline) and 1, 2, and 3 months later. The primary outcome was the Oxford Ankle Foot Questionnaire for Children (OxAFQ-C) physical score (3 months postenrollment). The secondary outcomes were OxAFQ-C school or play and emotional scores and the visual analog scale pain score.
    Results: The percentage of time wearing the brace during barefoot sports was not different between the Cheetah heel cup and The X Brace groups (82% versus 64% of the time in sports; P = .08). At 3 months, we observed no differences for the OxAFQ-C physical (0.79 versus 0.71; P = .80; Hedges g = 0.06), school or play (0.94 versus 1.00; P = .58; Hedges g = 0.26), or emotional (1.00 versus 1.00; P = .85; Hedges g = 0.21) score. Visual analog scale pain scores during activities of daily living and sports were lower (better) at the 2- and 3-month time points than at baseline (P < .001).
    Conclusions: Both groups demonstrated improvements in ankle and foot function across time, but no between-groups differences were seen at 3 months. Given these results, barefoot athletes with Sever's disease may consider using either brace with barefoot activity to help improve pain and functional status.
    MeSH term(s) Adolescent ; Child ; Female ; Humans ; Male ; Activities of Daily Living ; Athletes ; Calcaneus ; Pain
    Language English
    Publishing date 2022-09-05
    Publishing country United States
    Document type Randomized Controlled Trial ; Journal Article
    ZDB-ID 2070051-9
    ISSN 1938-162X ; 1062-6050
    ISSN (online) 1938-162X
    ISSN 1062-6050
    DOI 10.4085/1062-6050-0266.22
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  7. Article ; Online: More Physical Activity Is Correlated With Reduction in Kinesiophobia for Adolescents With Persistent Symptoms After Concussion.

    Smulligan, Katherine L / Wingerson, Mathew J / Seehusen, Corrine N / Little, Casey C / Wilson, Julie C / Howell, David R

    Journal of sport rehabilitation

    2022  Volume 32, Issue 2, Page(s) 196–202

    Abstract: Context: The relationship between physical activity (PA) and fear of pain with movement (ie, kinesiophobia) during concussion recovery is unknown. Kinesiophobia may limit PA, while PA after concussion may reduce kinesiophobia. Our purpose was to examine ...

    Abstract Context: The relationship between physical activity (PA) and fear of pain with movement (ie, kinesiophobia) during concussion recovery is unknown. Kinesiophobia may limit PA, while PA after concussion may reduce kinesiophobia. Our purpose was to examine the correlation between PA and self-reported kinesiophobia during concussion recovery for adolescents with and without persistent symptoms.
    Design: Prospective cohort study of children ages 10-18 years within 14 days of concussion.
    Methods: Participants rated kinesiophobia using the Tampa Scale of Kinesiophobia (TSK) at initial (≤14 d postconcussion) and return to play (RTP) assessments, and wore activity monitors between assessments. Our primary outcome was TSK score change from initial to RTP assessments. We grouped participants based on whether they experienced persistent symptoms (symptoms ≥28 days) or not (symptoms <28 days) and calculated correlation coefficients (Pearson r for normally distributed and Spearman rho for nonnormally distributed variables) between PA variables and TSK change scores.
    Results: Among the 41 participants enrolled, 44% developed persistent symptoms (n = 18; age = 14.5 [2.0] y; 50% female; symptom duration = 57.3 [6.2] d; RTP = 66.8 [6.4] d) and 56% did not (n = 23; age = 14.9 [1.8] y; 48% female; symptom duration = 15.2 [1.5] d; RTP = 21.7 [1.9] d). For the persistent symptoms group, greater TSK change scores (mean = -2.5 [5.7] point change) were significantly and moderately correlated with higher daily step count (r = -.60, P = .008) and exercise frequency (r = -.63, P = .005), but were not correlated with exercise duration (ρ = -.12, P = .65). Among the no persistent symptoms group, TSK change scores (mean = -6.0 [5.0] point change) were not correlated with step count (r = -.18, P = .41) or exercise duration (ρ = .10, P = .67), and the correlation with frequency was low and not significant (r = -.34, P = .12).
    Conclusions: Regular PA during concussion recovery, regardless of duration or intensity, may help reduce kinesiophobia for those experiencing persistent symptoms.
    MeSH term(s) Child ; Humans ; Female ; Adolescent ; Male ; Kinesiophobia ; Prospective Studies ; Pain ; Fear ; Brain Concussion ; Exercise
    Language English
    Publishing date 2022-10-11
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1106769-x
    ISSN 1543-3072 ; 1056-6716
    ISSN (online) 1543-3072
    ISSN 1056-6716
    DOI 10.1123/jsr.2022-0193
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