Study subject characteristics.

<p>Study subject characteristics.</p

Glucose uptake.

<p>M. quadriceps femoris (above) and m. biceps femoris (below) without and with compression during recovery from high intensity exercise.</p

A representative example of muscle blood flow PET image before (rest) and after (recovery) the high intensity exercise.

<p>This figure illustrates that blood flow is lower in compressed compared to non-compressed leg. The color bar on the right side of the figures represents the quantitative scale for blood flow values.</p

Skeletal muscle blood flow and glucose uptake in superficial and deep parts of m. quadriceps femoris (n.d. = not determined).

<p>Skeletal muscle blood flow and glucose uptake in superficial and deep parts of m. quadriceps femoris (n.d. = not determined).</p

Study design.

<p>A schematic illustration with all time points of measurements.</p

All subjects’ pressure of the shorts at different areas of the thigh.

<p>All subjects’ pressure of the shorts at different areas of the thigh.</p

The values (means ± SD) of the different metabolic and perceptual responses of the athletes (n = 10) during the 3x3-min DP intervals in association with the different oxygen contents during the intervals and recovery periods.

<p>^a indicates significant difference to baseline</p><p>^b indicates significant difference to HoHo at the same time point</p><p>^c indicates significant difference to HoHOX at the same time point</p><p>^d indicates significant difference to NoNo at the same time point</p><p>NoNo: normoxia with normoxic recovery; NoHOX: normoxia with hyperoxic recovery; HoHo: hypoxia with hypoxic recovery; HoHOX: hypoxia with hyperoxic recovery.</p

Mean power output during the three intervals under all four conditions.

<p>* indicates <i>P</i><0.05 in comparison to interval #1. NoNo: normoxia with normoxic recovery; NoHOX: normoxia with hyperoxic recovery; HoHo: hypoxia with hypoxic recovery; HoHOX: hypoxia with hyperoxic recovery.</p

The values (means ± SD) of the EMG and the TSI responses of the athletes (n = 10) during the 3x3-min DP intervals in association with the different oxygen contents during the intervals and recovery periods.

<p>^c indicates significant difference to NoNo at the same time point</p><p>^d indicates significant difference to HoHOX at the same time point</p><p>NoNo: normoxia with normoxic recovery; NoHOX: normoxia with hyperoxic recovery; HoHo: hypoxia with hypoxic recovery; HoHOX: hypoxia with hyperoxic recovery.</p

Changes in arterial oxygen saturation (S_aO₂) during the three intervals under all four conditions.

<p>For clarity, the associated statistical analyses are documented in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0140616#pone.0140616.t002" target="_blank">Table 2</a>. NoNo: normoxia with normoxic recovery; NoHOX: normoxia with hyperoxic recovery; HoHo: hypoxia with hypoxic recovery; HoHOX: hypoxia with hyperoxic recovery.</p