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A randomized controlled trial of the lateral push-off skater exercise for high intensity interval training versus conventional treadmill training
Soh S-H, Joo MC, Yun NR, Kim M-S
Archives of Physical Medicine and Rehabilitation 2020 Feb;101(2):187-195
clinical trial
5/10 [Eligibility criteria: Yes; Random allocation: Yes; Concealed allocation: Yes; Baseline comparability: Yes; Blind subjects: No; Blind therapists: No; Blind assessors: No; Adequate follow-up: No; Intention-to-treat analysis: Yes; Between-group comparisons: Yes; Point estimates and variability: No. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed*

OBJECTIVE: To examine the therapeutic effects of the lateral push-off skater exercise versus conventional treadmill training on health-related quality of life, cardiorespiratory fitness (CRF), and balance. DESIGN: Single-blinded, randomized controlled trial. SETTING: Outpatient clinic at a tertiary hospital. PARTICIPANTS: Minor stroke patients with National Institutes of Health Stroke Scale scores of 3 or less between 20 and 65 years of age were randomly assigned to the intervention group (n = 18) or the control group (n = 18). INTERVENTIONS: Thirty-minute sessions of the skater exercise were performed 3 times weekly for 12 weeks in the intervention group. Conventional treadmill aerobic exercise was conducted in the control group at the same frequency and duration as the experimental group exercise. MAIN OUTCOME MEASURES: The primary outcome was measured using the Euro-Quality of Life-5 Dimension (EQ-5D). Secondary outcomes included CRF and balance indicators. Assessments were performed at baseline (T0), 12 weeks from T0 (T1) and 16 weeks from T0 (T2). RESULTS: Significant improvements in EQ-5D, peak oxygen uptake (VO2peak), peak oxygen pulse, peak minute ventilation (VEpeak), Dynamic Gait Index (DGI), and Berg Balance Scale (BBS) were found in the intervention group after performing the skater exercise (p < 0.05, all), and these improvements were sustained at T2 (p < 0.05, all). Between-group comparisons demonstrated greater improvements in EQ-5D, VO2peak, peak oxygen pulse, VEpeak, DGI, and BBS in the intervention group than those in the control group at both T1 (p < 0.05, all) and T2 (p < 0.05, all). Correlation analysis showed significant relationships between EQ-5D and VO2peak, VEpeak, DGI, and BBS (p < 0.05, all). CONCLUSIONS: The skater exercise improved health-related quality of life, CRF, and balance in minor stroke patients more effectively than conventional treadmill-based aerobic exercise. We recommend the skater exercise as a high-intensity interval training program for minor stroke patients.

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