Isokinetics and Exercise Science - Volume 22, issue 3

Authors: Malone, John K. | Blake, Catherine | Caulfield, Brian

Article Type: Research Article

Abstract: BACKGROUND: Test-retest reliability of performing 1–2 bouts of a 30 s Wingate (30WanT) has been shown to improve by averaging 2 bouts. OBJECTIVE: To investigate whether adding a 3rd bout enhanced or decreased reliability. METHODS: On three occasions, 13 triathletes performed three 30WanT's on a cycle ergometer. Peak power (PP), mean power (MP) and fatigue index (FI) reliability across bouts (Intra-session) and days (Inter-session) were tested. Mean and % change between bouts, …typical errors of measurement (TEM) and intra-class correlation co-efficient (ICC) were compared between consecutive pairs of bouts and 3 bouts. Single (1 & 2), averaged 2 (Σ 1+2) and 3 bout (Σ 1+2+3) between days using TEMs and ICCs were also compared. RESULTS: Intra-session ICCs for 2 and 3 bouts for PP, MP and FI showed strong reliability (> 0.7). Three bouts had lower TEM for MP, but 2 bouts had less TEM for PP and FI. Inter-session reliability ICCs were > 0.90 for PP, 0.94 for MP and 0.82 for FI for the 1, 2 and 3 bouts with no clear difference between. CONCLUSIONS: Performing 1, 2 and 3 bouts showed high to very high reliability, with a 3rd bout not clearly reducing TEM, and in some cases introducung more variability. Show more

Keywords: Peak power, mean power, fatigue index, intra-class correlation co-efficient, typical errors

DOI: 10.3233/IES-140546

Citation: Isokinetics and Exercise Science, vol. 22, no. 3, pp. 251-258, 2014

Authors: Kim, Soo-Yong | Kang, Min-Hyeok | Kim, Eui-Ryong | Oh, Jae-Seop

Article Type: Research Article

Abstract: BACKGROUND: Although Kinesio Taping (KT) may increase muscle strength, few studies have examined the effectiveness of KT on muscle strength in patients with rotator cuff tendinitis. OBJECTIVE: To investigate the effect of KT on the isokinetic strength of the shoulder internal rotator (IR) and external rotator (ER) muscles in patients with rotator cuff tendinitis. METHODS: Thirteen patients with rotator cuff tendinitis participated in this study. Shoulder IR and ER strength was measured concentrically (at 60 and …180°/s) before and after applying KT. The PT of each muscle group as well as the ER to IR ratios served as the outcome parameters. RESULTS: The PT (both absolute and bodyweight normalized) of the IRs was significantly higher post-KT compared to pre-KT at both angular velocities. The ER/IR ratio was significantly lower post-KT than pre-KT at 60°/s. CONCLUSIONS: These findings suggest that KT may effectively increase the shoulder IR muscle strength and help restore the shoulder ER/IR balance with decreased ratios in patients with rotator cuff tendinitis. Show more

Keywords: Kinesio taping, shoulder internal and external rotators, isokinetic strength, rotator cuff tendinitis

DOI: 10.3233/IES-140547

Citation: Isokinetics and Exercise Science, vol. 22, no. 3, pp. 259-263, 2014