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. 2022 May 17;27(9):e748–e754. doi: 10.1093/oncolo/oyac092

Table 3.

Skeletal muscle performance metrics.

Spectroscopy variable Control (n = 16) Patients (n = 34)
Pre-chemotherapy Mid-chemotherapy End-chemotherapy One year
Incremental maximal test plantar flexion test peak power output (W) 15.7 (3.1) 14.5 (3.5) 14.7 (3.8) 14.3 (3.8) 14.6 (3.6)
Submaximal 4-minute steady-state plantarflexion test power output (W) 10.0 (1.9) 8.9 (2.0) 9.1 (2.1) 8.9 (2.3) 9.2 (2.2)
Plantarflexion exercise efficiency (power output/VO2 reserve, W/mL/minute) 0.25 (0.08) 0.24 (0.07) 0.22 (0.05) 0.21 (0.07)ab 0.23 (0.07)
Cycle ergometer pulmonary VO2peak (mL/kg/minute) 29.5 (7.7) 27.5 (7.1) n/a 25.1 (6.7)a 26.8 (7.0)
Cycle ergometer pulmonary VO2peak (L/minute) 2.13 (0.41) 1.97 (0.49) n/a 1.82 (0.47)a 1.94 (0.44)
Leg press 1-repetition maximum (kg) n/a 86.2 (38.4) n/a 77.7 (30.9)a 86.0 (29.3)

Different from pre-chemotherapy (P ≤ .05).

Different from mid-chemotherapy (P ≤ .05).

n/a = not collected.