Wilson, Machelle

AbstractBackgroundTraditionally, there has been a reluctance to use weight training with female gymnasts due to concerns that it could cause detrimental increases in muscle mass and impede flexibility. Recent literature has demonstrated that strength training has no significant effect on flexibility and can improve athletic performance.ObjectiveTo assess in a pilot study the perceptions of collegiate gymnasts and coaches toward strength training after starting inaugural strength and conditioning training.DesignSurvey‐based study.SettingNational Collegiate Athletics Association Division I women's gymnastics program at a public university in California.ParticipantsOf the 23 gymnasts surveyed, 17 (74%) responded to the survey. Of the two coaches surveyed, both (100%) responded to the survey.InterventionsNot applicable.Main Outcome MeasuresDescriptive statistics characterizing demographics, characteristics of gymnasts' strength and conditioning program, and perceptions regarding the safety of strength training and its impact on performance, body shape, flexibility, and injury rates.ResultsMost gymnasts agreed (35%) or strongly agreed (59%) that weight training may improve performance. All gymnasts disagreed (59%) or strongly disagreed (41%) that weight training is not safe; 41% disagreed, 29% strongly disagreed, and 17% agreed that weight training may negatively affect body shape. Most gymnasts disagreed (59%) or strongly disagreed (18%) that weight training decreases flexibility; four (24%) felt neutral. Eighty three percent (59% strongly agree, 24% agree) felt that weight training had a positive impact on performance. More than half of the gymnasts either agreed (24%) or strongly agreed (29%) they had fewer injuries the season after implementing weight training, compared to prior seasons. Both coaches similarly endorsed the safety of strength training and its potential to improve performance.ConclusionsIn this pilot study, collegiate gymnasts and coaches expressed generally positive perceptions toward the safety of strength training and its effect on performance. A small number of gymnasts expressed concerns regarding the effects of weight training on body shape and flexibility.

Though specific growth rate (SGR) has potential prognostic value for oropharyngeal squamous cell carcinoma (OPSCC), there is sparse literature defining these rates. Our aims were to establish the SGRs of primary tumors (PTs) and lymph nodes (LNs) in OPSCC and to correlate SGR with oncologic outcome. A pilot study was designed with a retrospective analysis examining 54 patients from the University of California, Davis with OPSCC (diagnosed 2012–2019). Radiation oncology software and pretreatment serial CT scans were used to measure PT and LN volumes to calculate SGR and doubling time (DT). The mean PT-SGR was 1.2 ± 2.2%/day and the mean LN-SGR was 1.6 ± 1.9%/day. There was no statistically significant difference between slow-growing and fast-growing cohorts in terms of age, gender, smoking status, tumor subsite, HPV status (as determined with p16 staining), initial volume, or overall stage. SGR had no impact on 2-year overall survival, disease-free survival, or disease-specific survival. We found the average daily growth rates for OPSCC to be 1.2%/day and 1.6%/day. Our findings suggest PT- and LN-SGR are independent factors, not heavily influenced by known biomarkers and patient characteristics, without a statistical impact on prognosis. This information has value in patient counseling regarding tumor growth and in providing patients worried about fast-growing tumors the appropriate reassurance.