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Figure 1 Comparison of heart rate responses for patient 1 (P1) during an early session (session 5) and late session (session 30) of body-weight–supported treadmill training (BWSTT). Target heart rate, which was 60%–85% of patient 1's age-predicted maximum, was equal to 117–166 bpm. During session 5, unloading was approximately 10% of body weight, and, during session 30, unloading was 0%. Treadmill speed (m/min) is indicated by arrow sets parallel to the x-axis (session 5=upper arrow set, broken lines; session 30=lower arrow set, solid lines). R=rest or recovery. From: Cardiorespiratory Capacity After Weight-Supported Treadmill Training in Patients With Traumatic Brain Injury Phys Ther. 2008;88(1): doi: /ptj Phys Ther | © 2008 American Physical Therapy Association
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Figure 2 Oxygen uptake (V̇o<sub>2</sub>) response versus work performed for each minute of graded exercise testing for patient 1 (P1) and patient 2 (P2) before and after body-weight–supported treadmill training (BWSTT). From: Cardiorespiratory Capacity After Weight-Supported Treadmill Training in Patients With Traumatic Brain Injury Phys Ther. 2008;88(1): doi: /ptj Phys Ther | © 2008 American Physical Therapy Association
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Figure 3 Heart rate response versus oxygen uptake (V̇o<sub>2</sub>) for each minute of graded exercise testing for patient 1 (P1) and patient 2 (P2) before and after body-weight–supported treadmill training (BWSTT). From: Cardiorespiratory Capacity After Weight-Supported Treadmill Training in Patients With Traumatic Brain Injury Phys Ther. 2008;88(1): doi: /ptj Phys Ther | © 2008 American Physical Therapy Association
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Figure 4 Oxygen pulse (O<sub>2</sub> pulse) response versus oxygen uptake (V̇o<sub>2</sub>) for each minute of graded exercise testing for patient 1 (P1) and patient 2 (P2) before and after body-weight–supported treadmill training (BWSTT). From: Cardiorespiratory Capacity After Weight-Supported Treadmill Training in Patients With Traumatic Brain Injury Phys Ther. 2008;88(1): doi: /ptj Phys Ther | © 2008 American Physical Therapy Association
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Figure 5 Minute ventilation (V̇e) response versus oxygen uptake (V̇o<sub>2</sub>) for each minute of graded exercise testing for patient 1 (P1) and patient 2 (P2) before and after body-weight–supported treadmill training (BWSTT). From: Cardiorespiratory Capacity After Weight-Supported Treadmill Training in Patients With Traumatic Brain Injury Phys Ther. 2008;88(1): doi: /ptj Phys Ther | © 2008 American Physical Therapy Association
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