1. High Incidence of Hyponatremia in Rowers During a Four-week Training Camp 
Constantin Ulrich Mayer, Gunnar Treff, PhD, Wiebke Kristin Fenske, MD, Katja Blouin, Jürgen Michael Steinacker, MD, Bruno Allolio, MD 
The American Journal of Medicine 
Volume 128, Issue 10, Pages (October 2015)
DOI: /j.amjmed
Copyright © 2015 Elsevier Inc. Terms and Conditions

2. Figure 1
Weekly training volume during 4-week rowing training camp. (A) Distance covered during rowing training at low (Lactate < 2 mmol·L−1) and high intensities (Lactate ≥ 4 mmol·L−1). (B) Weekly duration of rowing and land training. Small numbers with triangle represent days of measurement.
The American Journal of Medicine  , DOI: ( /j.amjmed )
Copyright © 2015 Elsevier Inc. Terms and Conditions

3. Figure 2
Plasma copeptin and serum sodium concentration in male (left) and female (right) rowers during training camp. ∗Data significantly different from day 0 (P < .05). †Data significantly different from day 7 (P < .05). Dotted line represents lower limit of normal serum sodium concentration range (135 mmol·L−1).
The American Journal of Medicine  , DOI: ( /j.amjmed )
Copyright © 2015 Elsevier Inc. Terms and Conditions

4. Figure 3
Relationship between 24-hour body weight change and serum sodium concentration. Dotted lines separate positive from negative body weight change and hyponatremia (< 135 mmol·L−1) from normo- or hypernatremia, respectively.
The American Journal of Medicine  , DOI: ( /j.amjmed )
Copyright © 2015 Elsevier Inc. Terms and Conditions

5. Figure 4
Secretion index (plasma copeptin/serum sodium×100) in rowers during training camp. †Data significantly different from day 7 (P < .05). ‡Data highly significantly different from day 13 (P < .001).
The American Journal of Medicine  , DOI: ( /j.amjmed )
Copyright © 2015 Elsevier Inc. Terms and Conditions