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Normative Standards for Isokinetic and Anthropometric Classifications of University-Level Netball Players
Kyra-Kezzia Duvenage1, Yolandi Willemse1, Hans de Ridder2
1Centre for Health and Human Performance, North-West University, Potchefstroom, South Africa.
Context:
The purpose of the study was to develop normative ranges and standards for knee and shoulder isokinetic and anthropometric values. These standards can be qualitatively interpreted and allow practitioners to classify isokinetic and anthropometric values more objectively for university-level netball players.
Design:
Posttest only observational study design. All players were only evaluated once during the in-season to generate normative ranges.
Methods:
A total of 51 female players volunteered. Participants were evaluated on an isokinetic dynamometer at 60° per second to obtain knee-extensor and knee-flexor values as well as shoulder-flexor and shoulder-extensor values. A total of 16 anthropometric variables were collected including stature, body mass, 8 skinfolds, and 6 circumferences. Between-group differences were calculated to determine whether playing level was a differentiating factor in data.
Results:
Normative standards were developed for isokinetic parameters associated with the knee and shoulder joints as well as skinfolds and circumference measures. No statistically significant between-group differences were evident (χ2Kruskal-Wallis[2] = 3.96, P = .140).
Conclusion:
These standards can be used by coaches and practitioners to set attainable goals for individual players or those from secondary leagues, classify individual and team-based performances, and facilitate decision-making processes.
