Table 2

Comparative analysis of metabolic aspects, cardiopulmonary capacity and strength among the transgender woman, cisgender woman and cisgender man groups

Transgender women (n=15)Cisgender women (n=13)Cisgender men (n=14)ComparisonP value
Metabolic aspects
 VO2 at rest (mL/min)328.7 (SD±75.1)240.1 (SD±31.4)395.8 (range 229–956)TW × CW**
TW × CMNS
CW × CM**
 VO2 AT (mL/min)1686 (range 1144–1786)1309 (SD±256.6)1864 (SD±4417)TW × CWNS
TW × CMNS
CW × CM**
 VO2 RCP (mL/min)2313 (SD±431.0)1914 (SD±351.2)2916 (SD±562.9)TW × CW*
TW × CM**
CW × CM****
 VO2 Peak (mL/min)2606 (SD±416.9)2167 (SD±408.8)3358 (SD±436.3)TW × CW*
TW x CM****
CW x CM****
 VO2 Peak/Wgt. (mL/kg/min)33.5 (SD±4.7)35.7 (SD±4.7)42.0 (range 32.3–49.2)TW × CWNS
TW × CM**
CW x CM**
 VO2 Peak/FFM (mL/kg/min)47.3 (SD±5.1)53.3 (SD±8.3)52.4 (SD±5.8)TW × CWNS
TW × CMNS
CW × CMNS
Cardiopulmonary aspects
 Peak O2 pulse (mL/beat)14.2 (SD±2.1)11.8 (SD±2.0)18.5 (range 12.2–22.4)TW × CW*
TW × CM****
CW × CM*
 Maximum HR (bpm)185.7 (SD±11.6)177.2 (SD±6.1)181.1 (range 164–189)TW × CW*
TW × CMNS
CW × CMNS
 % Maximum HR predicted per age103.1 (SD±7.3)96.5 (SD±3.2)99.2 (SD±3.4)TW × CW**
TW × CMNS
CW × CMNS
 VE (BTPS) (L/min)102.3 (SD±16.2)87.4 (SD±10.2)128.8 (SD±18.7)TW × CWNS
TW × CM**
CW × CM****
Strength
TW × CW*
 Mean strength (kg)35.3 (SD±5.4)29.7 (SD±3.6)48.4 (SD±6.7)TW × CM*
CW × CM****
TW × CWNS
 Mean strength/FFM0.6 (SD±0.1)0.7 (SD±0.9)0.7 (SD±0.1)TW × CM*
CW × CMNS
  • *p<0.05, **p<0.01, ****p<0.0001.

  • AT, anaerobic threshold; bpm, beats per minute; BTPS, body temperature pressure, saturated; CM, cisgender men; CW, cisgender women; FFM, fat-free mass; HR, heart rate; ns, non-significant; RCP, respiratory compensation point; TW, transgender women; VE, volume of expired air; VO2, oxygen consumption; Wgt, weight.