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. 2014 Feb 12;4(2):e004369. doi: 10.1136/bmjopen-2013-004369

Table 1.

Anthropometric characteristics, training and menstrual history details and OCA use of lightweight rowers

Variable Active
N=12
Retired
N=9
Both
N=21
Age (years) 26.6±2.0 31.6±5.0 28.7±4.3 (23–39)*
Stature (cm) 171.8±5.5 165.7±2.8 169.2±5.4 (162.0–179.5)
Body mass (kg) 61.2±1.8 61.5±5.4 61.3±3.7 (56.8–73)
Body fat (%) 21.4±5.8 23.1±7.2 22.1±6.4 (11.6–35.1)
BMI (kg/m2) 20.8±1.1 22.3±2.6 21.4±2.0 (19.5–27.8)
Age at onset of exercising (years) 15.1±5.7 11.3±4.6 13.5±5.6 (4–26)
Years playing sports 11.5±5.2 20.2±5.0 15.2±6.7 (2–31)*
Years training at lightweight category 2.5±1.1 6.0±3.8 4.0±3.1 (1–12)*
Training per week (h)† 15.3±4.1 22.9±12 18.6±9.0 (10–53)
Strength and power training per week (h)† 1.7±1.6 3.3±2.6 2.4±2.2 (0–10)
Water rower training per week (h)† 8.8±2.8 11.1±2.7 9.8±3.0 (5–16)
Cardiovascular training (cycling, running, ergometer rowing) per week (h)† 4.8±2.2 8.6±9.8 6.4±6.7 (1–33.5)
Age at onset of retirement (years) NA 28.6±5.6 NA
Years since retirement NA 3.0±1.9 NA
OCA (years) 4.3±3.1 2.4±1.4 3.9±2.7 (1–9)
Years with oligomenorrhoea/amenorrhoea 4.5±3.9 4.2±4.4 4.4±4.0 (0–13)
Menarcheal age (years) 13.4±1.1 13.0±1.2 13.2±1.1 (11–15)
Oligomenorrhoeic/amenorrhoeic (N) 10 7 17
Gynaecological age (years) 13.2±2.2 18.5±5.1 15.5±4.5 (10–27)*
Total lifetime menses (years) 10.8±2.3 14.6±5.4 12.4±4.3 (4.9–25.3)

Values are mean±SD.

*p<0.05 between active and retired rowers.

†At highest competitive level; gynaecological age is years since menarche; OCA is length of OCA use in years; all oligomenorrhoea/amenorrhoea years were secondary (occurred after menarche).

OCA, oral contraceptive.