SUMMARY
Developing technological issues provided that measure complex structure of team sports physiological loading during competition and trainings. During the last decade, limited numbers of researches reported about loading intensity and physiological response of junior girl basketball players during official competition. In this context, The aim of this study is determine of heart rate (HR) response during official competition in junior girl basketball players. 12 junior girl basketball players (age: 14.75±0.55 years, height: 168.48±5.3 cm, weight: 62.6±9.52 kg, predicted VO²max: 49.76±3.64 ml/kg/min) participated to this study. The HR measurements were taken official regional clubs league championship. Two days after followed up competition players performed the Shuttle Run Test (SRT) for determine maxHR levels. All HR measurement was taken by Polar Team2 (Finland). Frequency analyses were performed for the obtained data. Wilcoxon Rank Test was used for determined HR difference between halves. Friedman’s test was used for detected HR differences between periods. According to the analysis results, the maxHR levels obtained during SRT of the players were determined as 196,33 ± 10,04. The meanHR was determined 176,03±10,36 (89.66% of maxHR) in all competition. First half meanHR was 177,16±13,19 (90.23% of maxHR), second half meanHR was 175,00±11,56 (89.13% of maxHR), first period meanHR was 177,16±13,94 (90.00% of maxHR), second period meanHR was 176,87±12,10 (88.88% of maxHR), third period meanHR was 176,88±12,10 (90.08% of maxHR), fourth period meanHR was 179,40±10,71 (91.73% of maxHR). There were no difference found between halves and periods (p>0.05). As a result of this study, HR response showed that intensity of junior girl basketball competition is approximately 89,66% of maxHR. This results showed that competition intensity is very high during all halves and periods. The determination of the official competition intensity of junior girl basketball players can provide important knowledge to coaches that young players have improved their sporting performance. ÖzetMüsabaka ve antrenmanlar sirasinda takim sporunun fizyolojik yükünün karmasik yapisini ölçen teknolojik gelismeler saglanmistir. Son on yilda, resmi müsabaka sirasinda yildiz kiz basketbolcularin fizyolojik tepkileri ve yüklenme yogunlugu ile ilgili sinirli sayida arastirma rapor edilmistir. Bu baglamda, bu çalismanin amaci, yildiz kiz basketbolcularin resmi müsabaka sirasinda kalp atim hizi (KAH) yanitlarini belirlemektir. Çalismaya 12 yildiz kiz basketbolcu (yas: 14,75±0,55, boy: 168,48±5,30, vücut agirligi: 62,6±9,52, tahmini VO²maks: 49,76±3,64 ml/kg/dk) katildi. KAH ölçümleri resmi bölgesel klüpler lig sampiyonasinda alindi. Maçtan iki gün sonra KAH seviyelerini belirlemek için 20 m. Mekik Kosusu Testi (20MKT) uygulandi. Basketbolcularin müsabaka ve 20MKT sirasinda kalp atim hizlari Polar Team2 (Finland) sistem ile ölçüldü. Elde edilen veriler için frekans analizi uygulandi. Yarilar arasindaki KAH farki için Wilcoxon Rank Testi kullanildi. Periodlar arasindaki KAH farklari Friedman’s Testi ile tespit edildi. Analiz sonuçlarina göre, oyuncularin 20MKT sirasinda elde edilen maksKAH degerleri 196,33±10.04 olarak tespit edildi. Basketbolcularin tüm müsabaka ortKAH 175,93±10,19 (maks KAH’in %89.66). Ilk yari ortKAH 177,16±13,19 (maksKAH'in %90.23), ikinci yari ortHR 175,00±11,56 (maksKAH'in 89.13), ilk period ortHR 177,16±13,94 (maksKAH'in %90.00), ikinci period ortHR 176,87 ± 12,10 (maksKAH'in %88.88), üçüncü period ortHR 176,88±12,10 (maksKAH'in %90.08), dördüncü period ortHR 179,40±10,71 (maksKAH'in %91.73) olarak tespit edildi. Periyotlar ve yarilar arasinda ortKAH bakimindan anlamli fark bulunmamistir (p>0.05). Bu çalismanin bir sonucu olarak, yildiz kiz basketbol müsabakasinda KAH cevaplarinin maxKAH'in yaklasik %89,66 siddetinde oldugu görüldü. Bu sonuçlar, müsabaka yogunlugunun tüm yarilar ve periyotlar için çok yüksek oldugunu göstermektedir. Yildiz oyuncularin resmi müsabaka yogunlugunun belirlenmesi, genç oyuncularin spor performansini gelistirdiklerine dair antrenörlere önemli bilgi saglayabilir.