The aim of this study is to compare values of force–velocity and functional walking capacityin elderly patients with intermittent claudication with respect to the control group.Materials and methods: The study involved 135 individuals: 85-peripheral arterial disease (PAD) group diagnosed with stage II chronic lower limb ischemia, according to Fontaine’s classification, and 50-controlgroup. The studies included an assessment of walking capacity using a six-minute walk test (6MWT) andmeasurement of force–velocity parameters (peak torque—PTQ, total work—TW, average power—AVGP)of the lower limbs obtained by means of a functional dynamometry under isokinetic conditions.Results: The peripheral arterial disease group is characterized by significantly lower values offorce–velocity parameters compared to the control group (p < 0.005). Walking capacity in this groupis significantly reduced due to significant differences in the distance covered (p < 0.0001), walking speed(p < 0.01), and its intensity (p < 0.01). Further, a positive correlation was found between the maximumdistance specified in the six-minute walk test and lower limb muscle strength in the isokinetic test.Conclusions: Mean values of all force–velocity parameters and walk distance were significantly higher inthe control group than in the peripheral arterial disease group. In the PAD group, in both men and women,the value of the agonist/antagonist ratio of both lower limbs are lower in men and women comparingto the control group. A rehabilitation program for patients with intermittent claudication must considerexercises improving strength, exercise capacity, and endurance in patients with PAD.