Table 2.

Respiratory muscle strength and spirometry before and after bariatric surgery versus healthy matched controls

	Pre-surgery	Post-surgery	Controls
Limb muscle strength
Quadriceps strength, kg	53±15	51±13	50±10
Quadriceps strength/leg LM	5.0±1.1	5.5±0.8$	5.7±0.9°
Handgrip strength, kg	36±9	37±9	38±9
Handgrip strength/arm LM	11.4±2.0	13.7±3.0$$	152±14°°°
Respiratory muscle strength, cm H2O
MIP	90±18	93±23	85±22
MEP	116±28	114±23	115±40

^°p ≤ 0.05

^°°°p < 0.001: pre-surgery versus controls.

^$p<0.05

^$$p < 0.01: pre-surgery versus post-surgery.