Browsing by Author "Lategan, Roxanne"

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    Balance in recreational/non-professional dancers with snapping hip : a cross-sectional study
    (Stellenbosch : Stellenbosch University, 2022-04) Lategan, Roxanne; Brink, Yolandi; Berner, Karina; Stellenbosch University. Faculty of Medicine and Health Sciences. Dept. of Health and Rehabilitation Sciences. Physiotherapy.
    ENGLISH SUMMARY: Snapping hip (SH) or coxa sultans is a common condition amongst the dance population. The symptoms are insidious and often ignored until it becomes painful or problematic. Hip muscle weakness is a common characteristic of SH, particularly affecting the gluteus medius muscle. A weak gluteus medius muscle has been linked to poor balance in the healthy population, and balance is a skill dancers need to be proficient in. Furthermore, gluteus medius weakness may relate to the three main predictors of dance-related lower limb injuries (Functional Turnout [FTO], compensated turnout [CTO], and hip external rotation [HER]). To date no studies have been conducted on dynamic balance and associated factors in a group of dancers with SH. A better understanding of factors associated with SH in dancers could suggest potential strategies for screening and rehabilitation to improve performance, quality of life, and mitigate future recurrence of the condition. Aim: This study aimed to describe FTO, CTO, HER range of motion (ROM), hip muscle strength (HER and hip abduction), and dynamic balance in a group of recreational dancers with SH, to describe any differences between the affected and unaffected sides, and to determine whether there were any relationships between the variables. Methodology: A descriptive cross-sectional study was conducted. A questionnaire was filled in by potentially eligible volunteers, to screen for SH and to gather demographic information. Eligible participants were measured for FTO and HER ROM, hip muscle strength tests were conducted with a hand-held dynamometer, and the Y-test for dynamic balance was performed. Descriptive results were presented using means, percentages, standard deviations and 95% confidence intervals. Differences between groups were based on the paired t-test and relationships were calculated using Pearson’s correlation coefficients. A one-way ANOVA test was used to compare four pain categories according to age. The level of significance was set at p<0.05. Results: Twenty-three female participants aged 15-40 years were clinically diagnosed with internal SH. The relationship between HER muscle strength on the affected side and CTO was significant (p=0.013), and moderately positively correlated (r=0.51). Other noteworthy albeit non-significant relationships were hip abduction muscle strength and balance on the unaffected side (r=0.40; p=0.06), hip abduction strength on the unaffected side and CTO (r=0.37; p=0.08), and HER strength and balance on the unaffected side (r=0.37; p=0.08). There were no significant differences between sides (all p>0.05) and pain was not related to age (p= 0.416). Conclusion: Findings did not demonstrate poorer dynamic balance on the affected leg in dancers with SH than in the unaffected leg and were inconclusive in terms of other relationships and comparisons, including a relationship between gluteus medius and dynamic balance. HER muscle strength on the affected side and CTO may however need to be considered as related factors when screening for impairments in dancers with SH. Little knowledge remains regarding SH and dynamic balance in dancers. More studies with larger samples are needed to make more conclusive inferences about these outcomes.