• Low body fat does not influence recovery after muscle-damaging lower-limb plyometrics in young male team sport athletes

      Fernandes, John; Lamb, Kevin; Twist, Craig; University of Chester
      Aim: This study assessed the influence of fat mass to fat-free mass ratio (FM:FFM) on recovery from plyometric exercise. Method: After assessment of body composition, 20 male team sport players (age 20.7 1.1 years; body mass 77.1 11.5 kg) were divided into low- (n = 10; 0.11 0.03) and normal- (n = 10; 0.27 0.09) fat groups based on FM:FFM ratio. Thereafter, participants completed measurements of knee extensor torque at 60 and 240 s􀀀1, countermovement jump flight time, plasma creatine kinase (CK) activity and perceived muscle soreness (VAS) before and at 0, 24 and 48 h after 10 10 maximal plyometric vertical jumps. Results: Evidence of muscle damage was confirmed by alterations in VAS, peak torque at 60 and 240 s􀀀1 and flight time at 0, 24 and 48 h after plyometric exercise (P < 0.05). CK was increased at 0 and 24 h (P < 0.05) but returned to baseline values by 48 h. No time by group e ects were observed for any of the dependent variables (P > 0.05). Conclusion: The current findings indicate that while muscle damage was present after plyometric exercise, the magnitude was similar across the two body composition groups. Applied practitioners can allow for a similar recovery time after plyometric exercise in those with low and normal body fat.
    • Perfectionism Among Young Female Competitive Irish Dancers: Prevalence and Relationship with Injury Responses

      Pentith, Rebecca; Moss, Samantha; Lamb, Kevin; Edwards, Carmel; University of Chester
      The present study investigated the prevalence of perfectionism among young competitive Irish dancers and examined the relationships between three different types of perfectionistic tendencies and coping strategies ultilised when experiencing injury. Sixty-eight female dancers (Mage = 14 ± 2.3 years) completed the Child-Adolescent Perfectionism Scale and the Ways of Coping Questionnaire, alongside a record of injuries incurred during their championship careers. Participants reported 189 injuries, mostly involving lower extremities. Seventy-nine percent of dancers reported perfectionistic tendencies (mixed perfectionism 40%, pure self-oriented perfectionism 29%, pure socially prescribed perfectionism 10%), and most frequently adopted planful problem-solving, seeking social support, distancing, and self-controlling strategies to cope with injury. Perfectionism and the utilisation of two coping strategies were found to be significantly (p = .03) related; planful problem-solving was used typically ‘quite a bit or a great deal’ by the mixed perfectionism group, but only ‘somewhat’ by the non-perfectionism group, whereas confrontive coping was typically not used by the non-perfectionism group, but was used ‘somewhat’ by the mixed perfectionism group. Given the high frequency and intensity of perfectionism and the simulaneous employment of problem- and emotion-focused strategies when coping with injuries, it is suggested that practitioners acknowledge such tendencies when supporting their athletes’ in order to reduce the likely negative psychological impact.