Browse

You are looking at 11 - 20 of 4,677 items for :

  • Athletic Training, Therapy, and Rehabilitation x
  • Sport and Exercise Science/Kinesiology x
  • Refine by Access: All Content x
Clear All
Restricted access

Kristen M. Stearns-Reider, Rachel K. Straub, and Christopher M. Powers

Peak knee valgus has been shown to predict anterior cruciate ligament injury. The purpose of the current study was to compare peak rate of torque development (RTD) to peak isometric torque as a predictor of peak knee valgus during landing. Twenty-three healthy females participated. Hip abductor muscle performance was quantified using 2 types of isometric contractions: sustained and rapid. Peak isometric torque was calculated from the sustained isometric contraction. Peak RTD was calculated from the rapid isometric contraction (0–50 and 0–200 ms after force initiation). Kinematic data were collected during the deceleration phase of a double-leg drop jump task. Linear regression was used to assess the ability of hip abductor muscle performance variables to predict peak knee valgus. Increased peak RTD during the 0 to 50 milliseconds window after force initiation was found to significantly predict lower peak knee valgus (P = .011, R 2 = .32). In contrast, neither peak RTD from 0 to 200 milliseconds after force initiation window (P = .45, R 2 = .03) nor peak isometric torque (P = .49, R 2 = .03) predicted peak knee valgus. The inability of the hip abductors to rapidly generate muscular force may be more indicative of “at-risk” movement behavior in females than measures of maximum strength.

Restricted access

ZáNean McClain, Erin Snapp, Daniel W. Tindall, and Jill Anderson

Restricted access

Philip Sullivan and Laura Tennant

Intercollegiate student-athletes appear to be a high-risk population with respect to mental health. Student athletic therapists are one of the groups with whom these athletes may be comfortable disclosing concerns. The current study investigated the relationship between mental health literacy and mental health referral efficacy in a sample of intercollegiate student therapists. One hundred and eleven student athletic therapists (81 female, 29 male, 1 nondiscloure) competed a revised version of the multicomponent mental health literacy measure and a four-item measure of mental health referral efficacy. T tests revealed statistically significant differences in mental health literacy by gender and personal history, and a multiple linear regression revealed a significant model predicting referral efficacy from mental health literacy. There are several implications of these results, particularly when working with a high-risk population of student-athletes.

Open access

Andreas Kuettel, Natalie Durand-Bush, and Carsten H. Larsen

The purpose of this study was (a) to investigate gender differences in mental health among Danish youth soccer players, (b) to discover the mental health profiles of the players, and (c) to explore how career progression and mental health are related. A total of 239 Danish youth elite soccer players (M = 16.85, SD = 1.09) completed an online questionnaire assessing mental well-being, depression, anxiety, along with other background variables. Female players scored significantly lower on mental well-being and had four times higher odds of expressing symptoms of anxiety and depression than males. Athletes’ mental health profiles showed that most athletes experience low depression while having moderate mental well-being. Depression, anxiety, and stress scores generally increased when progressing in age, indicating that the junior–senior transition poses distinct challenges to players’ mental health, especially for female players. Different strategies to foster players’ mental health depending on their mental health profiles are proposed.

Open access

Eleftherios Paraskevopoulos, Georgios Gioftsos, Georgios Georgoudis, and Maria Papandreou

Adherence to exercise rehabilitation has been shown to be an important factor that may influence successful treatment. In professional athletes, a significant reduction in exercise adherence delays recovery. The aim of this study was to explore barriers to and facilitators of exercise rehabilitation adherence in injured volleyball athletes. Eight professional volleyball athletes were recruited, and qualitative data were collected using semistructured interviews. All athletes had completed their rehabilitation program after they had suffered a musculoskeletal injury. All data were analyzed using thematic analysis after the investigators ensured that saturation had been reached. Pain was identified as a significant barrier to exercise adherence by all athletes. The provision of social support, including mental, practical, and task related, also had a significant positive impact. The athletes’ ability to develop the necessary coping strategies and confidence on performing exercises at home was also mentioned as a factor that affected exercise adherence, although less often.

Restricted access

Benjamin J.I. Schellenberg, Jérémie Verner-Filion, and Patrick Gaudreau

Athletes can respond to positive experiences in sport by engaging in savoring—that is, by attempting to prolong or amplify their positive feelings. In this research, the authors tested if savoring was predicted by levels of harmonious or obsessive passion for sport and if savoring was associated with symptoms of burnout. In Study 1 (n = 499), the authors found that savoring was positively associated with harmonious passion and negatively associated with obsessive passion. In addition, savoring predicted lower levels of burnout and played an indirect role in the relationship between both passion types and burnout. The authors replicated these findings in Study 2 (n = 298), with collegiate-level athletes, prospectively, over the course of a season. Overall, athletes with strong levels of harmonious passion appear to be most likely to engage in savoring, a response that may protect them from experiencing higher levels of burnout.

Restricted access

Christine E. Pacewicz and Alan L. Smith

Interpersonal exchanges may contribute to athletes’ motivational and well-being experiences through their contribution to athletes’ feelings of loneliness. Loneliness is understudied in sport, yet it is potentially salient in connecting social relationships with motivational processes and well-being of athletes. The purpose of the current research was to examine (a) the association of aspects of teammate relationships with athletes’ perceptions of burnout and engagement and (b) whether loneliness explained these associations. Adolescent athletes (N = 279) completed established measures of teammate relationships, loneliness, burnout, and engagement. The mediational model was invariant between boys and girls. Loneliness mediated the relationship of social support (β = −0.14, 0.10), corumination (β = 0.09, −0.06), and appraisal of peer rejection (β = 0.11, −0.08) with burnout and engagement, respectively. Continued examination of athletes’ loneliness will extend understanding of athletes’ motivational and well-being experiences and inform the promotion of adaptive sport experiences.

Restricted access

Naser Nawayseh and Saleh AlBaiti

In recent years, whole-body vibration (WBV) training has received an increasing interest in the sports and medical fields. However, there has been inconsistency among several studies regarding the effect of WBV training on the human body, which is partly due to the lack of the existence of guidelines for using WBV training machines. To understand the effect of WBV training on the human body and build the needed regulations, it is essential first to understand the biodynamic responses to vibration which represent how vibration is transmitted to and through the human body. The purpose of this study is to systematically review previous studies that measured biodynamic responses when using WBV training machines to highlight inconsistencies in their results and provide possible reasons for them. An extensive literature search was performed on the SCOPUS database to obtain relevant studies. One hundred and fifty-six potentially relevant studies were obtained but after further screening, 23 papers from 2007 to 2020 met inclusion criteria and were included in the study. The papers were analysed with respect to acceleration, transmissibility, interface force, and apparent mass during different vibration settings, body posture, age, and sex. Results and conflicts among studies were highlighted and possible explanations for the inconsistency were provided.

Restricted access

Xiu Hu, Shaojun Lyu, Min Mao, Jianwei Zhang, Wei Sun, Cui Zhang, and Qipeng Song

The team developed the newly compiled eight methods and five steps of Tai Chi (EMFSTC), which includes introductory routines to Tai Chi characterized by simple structures. This study examined the effectiveness of EMFSTC practice on balance control. A total of 31 participants were randomly assigned to EMFSTC (n = 15, age = 66.4 ± 1.7 years, received 16-week EMFSTC practice) or control (n = 16, age = 66.7 ± 1.8 years, received no practice) groups. Significant group by training interactions were observed. After EMFSTC practice, balance control improved, as indicated by decreased root mean square and mean velocity of center of pressure, proprioception threshold during knee extension, and plantar tactile sensitivity threshold at the arch. EMFSCT can be an effective rehabilitation modality to improve balance control among older adults.

Restricted access

Valters Abolins and Mark L. Latash

We present a review on the phenomenon of unintentional finger action seen when other fingers of the hand act intentionally. This phenomenon (enslaving) has been viewed as a consequence of both peripheral (e.g., connective tissue links and multifinger muscles) and neural (e.g., projections of corticospinal pathways) factors. Recent studies have shown relatively large and fast drifts in enslaving toward higher magnitudes, which are not perceived by subjects. These and other results emphasize the defining role of neural factors in enslaving. We analyze enslaving within the framework of the theory of motor control with spatial referent coordinates. This analysis suggests that unintentional finger force changes result from drifts of referent coordinates, possibly reflecting the spread of cortical excitation.