Effects of resistance exercise intensity on cerebral blood flow and cerebrovascular reactivity in healthy young males: A pilot study

Figures

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  FIGURE 1. Movement sequence during the resistance exercise intervention. (a) Starting static posture. (b) Right‐arm dumbbell curl at peak contraction. (c) Left‐arm dumbbell curl at peak contraction. The participant in Figure 1 consented to the publication of the image in an anonymized form with the face masked.

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  FIGURE 2. Resistance exercise intervention protocol. Participants completed three trials at low, medium, and high intensities. Measurements were taken at baseline (BL), 1, 5, and 10 min post‐exercise. BFV, Blood flow velocity; BHI, Breath‐holding index.

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  FIGURE 3. Effects of different resistance exercise intensities on blood pressure and heart rate. (a) Heart rate (HR). (b) Systolic blood pressure (SBP). (c) Diastolic blood pressure (DBP). (d) Mean blood pressure (MBP). *p < 0.05 versus BL. **p < 0.01 versus BL.

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  FIGURE 4. Acute effects of resistance exercise intensities on middle cerebral artery velocities: (a) systolic (MCAvs), (b) diastolic (MCAvd), and (c) mean velocity (MCAvm). Boxes represent the interquartile range (25th to 75th percentile), with horizontal lines indicating the median. Whiskers represent minimum and maximum values. *p < 0.05 versus BL. **p < 0.01 versus BL.

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  FIGURE 5. Acute effects of different resistance exercise intensities on (a) pulsatility index (PI) and (b) resistance index (RI). Boxes represent the interquartile range (25th to 75th percentile), with horizontal lines indicating the median. Whiskers represent minimum and maximum values. *p < 0.05 versus BL. **p < 0.01 versus BL.

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  FIGURE 6. Acute effects of different resistance exercise intensities on the breath‐holding index (BHI). Boxes represent the interquartile range (25th to 75th percentile), with horizontal lines indicating the median. Whiskers represent minimum and maximum values. *p < 0.05 versus BL. **p < 0.01 versus BL.