Outcome
Type |
Measure |
Description |
Time frame |
Safety issue |
Primary |
Change in VO2 Max, Maximum Oxygen Uptake in ml/Min/kg is the Standard Index of Cardio-respiratory Fitness |
maximum oxygen uptake(VO2max, in ml/min/kg)was determined using the Åstrand-Rhyming test.The workload on the cycle ergometer was increased every minute by 25 watts until a steady-state heart rate was achieved. Participants had to sustain cycling for about 6 minutes, the heart rate(HR) was taken every minute. Mean HR of the 5th and 6th minute was registered. With the given workload, observed HR and participants'weight, maximal oxygen uptake can be established using the Åstrand-Rhyming nomogram. Values vary from < 21( sedentary with disease) to > 57 ( very good physical condition). |
baseline, postintervention at 9 weeks |
|
Secondary |
Change in Self-efficacy Pain and Other Symptoms |
Self-efficacy was assessed by the Arthritis-Self-efficacy Scale Dutch version. This arthritis self-efficacy scale contains two sub scales: self-efficacy pain (5 items related to coping with pain, and self-efficacy other symptoms (6 items related to coping with other symptoms, such as depression, fatigue and frustrations.A five-point ordinal scale is used ranging from 'totally disagree' (1) to 'totally agree' (5). We computed a mean score of 11 items ranging from 1-5. A higher score refers to higher self-efficacy. |
baseline, postintervention at 9 weeks, |
|
Secondary |
Change in Self-efficacy Function |
Self-efficacy function was assessed by the Arthritis-Self-efficacy Scale Dutch version The subscale self-efficacy function contains 8 items related to physical function. A five-point ordinal scale is used ranging from 'totally disagree' (1) to 'totally agree' (5). A mean score of 8 items was computed ranging from 1-5. A higher score refers to higher self-efficacy. |
baseline, postintervention at 9 weeks, |
|
Secondary |
Change in Muscle Strength of the Upper Extremity |
Muscle strength was assessed using a hand-held dynamometer (Microfet, Hoggan health Industries Inc.USA).Maximal voluntary isometric muscle strength of the elbow-flexors, elbow-extensors, was tested and recorded three times for each muscle group. All tests were performed bilaterally. The mean value of three measurements was computed. In addition a sum score of the mean values of the flexors and extensors on both sides for the upper extremity (UE)was computed and taken for analyses. |
baseline, postintervention at 9 weeks, |
|
Secondary |
Change in Muscle Strength of the Lower Extremity |
Muscle strength was assessed using a hand-held dynamometer (Microfet, Hoggan health Industries Inc.USA).Maximal voluntary isometric muscle strength of the knee-flexor and knee-extensors, was tested and recorded three times for each muscle group. All tests were performed bilaterally. The mean value of three measurements was computed. In addition a sum score of the mean values of the flexors and extensors on both sides for the lower extremity (LE)was computed and taken for analyses. |
baseline, postintervention at 9 weeks, |
|
Secondary |
Change in Health Status: Physical Health |
Self-reported health status was assessed using the Arthritis Impact-Measurement Scale-2, the Dutch version (Dutch-AIMS2).The questionnaire contains 77 items which represent 5 dimensions: physical functioning, psychological functioning, symptoms, social interaction and role functioning. Responses are recorded on a 5-point scale. All responses were recoded and calculated to a 0-10 scale. Scores were modified according to the number of co-morbidity complaints, as was recommended in the Dutch-AIMS2 manual. A low score indicates better health. |
baseline, postintervention at 9 weeks, |
|
Secondary |
Change in Health Status: Psychological Health |
Self-reported health status was assessed using the Arthritis Impact-Measurement Scale-2, the Dutch version (Dutch-AIMS2).The questionnaire contains 77 items which represent 5 dimensions: physical functioning, psychological functioning, symptoms, social interaction and role functioning. Responses are recorded on a 5-point scale. All responses were recoded and calculated to a 0-10 scale. Scores were modified according to the number of co-morbidity complaints, as was recommended in the Dutch-AIMS2 manual. A low score indicates better health. |
baseline, postintervention at 9 weeks, |
|
Secondary |
Change in Health Status: Social Interaction |
Self-reported health status was assessed using the Arthritis Impact-Measurement Scale-2, the Dutch version (Dutch-AIMS2).The questionnaire contains 77 items which represent 5 dimensions: physical functioning, psychological functioning, symptoms, social interaction and role functioning. Responses are recorded on a 5-point scale. All responses were recoded and calculated to a 0-10 scale. Scores were modified according to the number of co-morbidity complaints, as was recommended in the Dutch-AIMS2 manual. A low score indicates better health. |
baseline, postintervention at 9 weeks, |
|