The short physical performance battery (SPPB) is a group of measures that combines the results of the gait speed, chair stand and balance tests. It has been used as a predictive tool for possible disability and can aid in the monitoring of function in older people. The scores range from 0 (worst performance) to 12 (best performance). The SPPB has been shown to have predictive validity showing a gradient of risk for mortality, nursing home admission, and disability. Clinically meaningful changes are 0.3-1.0 points.

The short physical performance battery (SPPB) is a group of measures that combines the results of the gait speed, chair stand and balance tests. It has been used as a predictive tool for possible disability and can aid in the monitoring of function in older people. The scores range from 0 (worst performance) to 12 (best performance). The SPPB has been shown to have predictive validity showing a gradient of risk for mortality, nursing home admission, and disability. Clinically meaningful changes are 0.3-1.0 points.

The short physical performance battery (SPPB) is a group of measures that combines the results of the gait speed, chair stand and balance tests. It has been used as a predictive tool for possible disability and can aid in the monitoring of function in older people. The scores range from 0 (worst performance) to 12 (best performance). The SPPB has been shown to have predictive validity showing a gradient of risk for mortality, nursing home admission, and disability. Clinically meaningful changes are 0.3-1.0 points.

To report total body lean mass using dual-energy x-ray absorptiometry (DXA).

To report total body fat mass using dual-energy x-ray absorptiometry (DXA).

To report total body fat mass using dual-energy x-ray absorptiometry (DXA).

To report total body fat mass using dual-energy x-ray absorptiometry (DXA).

To report total body bone mass using dual-energy x-ray absorptiometry (DXA).

To report total body bone mass using dual-energy x-ray absorptiometry (DXA).

To report total body bone mass using dual-energy x-ray absorptiometry (DXA).

Muscle size will be analyzed using ultrasound of the vastus lateralis of the dominant leg. Higher muscle mass and quality are associated with greater muscle strength, physical function, QoL, and mortality.

Muscle size will be analyzed using ultrasound of the vastus lateralis of the dominant leg. Higher muscle mass and quality are associated with greater muscle strength, physical function, QoL, and mortality.

Muscle size will be analyzed using ultrasound of the vastus lateralis of the dominant leg. Higher muscle mass and quality are associated with greater muscle strength, physical function, QoL, and mortality.

Muscle architecture will be analyzed using ultrasound of the vastus lateralis of the dominant leg. Higher muscle mass and quality are associated with greater muscle strength, physical function, QoL, and mortality. Muscle quality is reported in arbitrary units, where a lower value indicates a higher/better muscle quality.

Muscle architecture will be analyzed using ultrasound of the vastus lateralis of the dominant leg. Higher muscle mass and quality are associated with greater muscle strength, physical function, QoL, and mortality. Muscle quality is reported in arbitrary units, where a lower value indicates a higher/better muscle quality.

Muscle architecture will be analyzed using ultrasound of the vastus lateralis of the dominant leg. Higher muscle mass and quality are associated with greater muscle strength, physical function, QoL, and mortality. Muscle quality is reported in arbitrary units, where a lower value indicates a higher/better muscle quality.

CT scans will also be performed to assess skeletal muscle (SM). The L3 scan is uploaded into a software called SliceOmatic (TomoVision, Montreal, Quebec, Canada) to segment L3 into cross-sectional SM area, SAT area, and VAT area based on Hounsfield Units (HU) ranges: -29 to 150 for SM. An add-on module called Automated Body composition Analyzer using Computed tomography image Segmentation (ABACS) automatically performs the segmentation and produces an unbiased estimation.

CT scans will also be performed to assess skeletal muscle (SM). The L3 scan is uploaded into a software called SliceOmatic (TomoVision, Montreal, Quebec, Canada) to segment L3 into cross-sectional SM area, SAT area, and VAT area based on Hounsfield Units (HU) ranges: -29 to 150 for SM. An add-on module called Automated Body composition Analyzer using Computed tomography image Segmentation (ABACS) automatically performs the segmentation and produces an unbiased estimation.

CT scans will also be performed to assess skeletal muscle (SM). The L3 scan is uploaded into a software called SliceOmatic (TomoVision, Montreal, Quebec, Canada) to segment L3 into cross-sectional SM area, SAT area, and VAT area based on Hounsfield Units (HU) ranges: -29 to 150 for SM. An add-on module called Automated Body composition Analyzer using Computed tomography image Segmentation (ABACS) automatically performs the segmentation and produces an unbiased estimation.

CT scans will also be performed to subcutaneous adipose tissue (SAT). The L3 scan is uploaded into a software called SliceOmatic (TomoVision, Montreal, Quebec, Canada) to segment L3 into cross-sectional SM area, SAT area, and VAT area based on Hounsfield Units (HU) ranges: -190 to -30 for SAT. An add-on module called Automated Body composition Analyzer using Computed tomography image Segmentation (ABACS) automatically performs the segmentation and produces an unbiased estimation.

CT scans will also be performed to subcutaneous adipose tissue (SAT). The L3 scan is uploaded into a software called SliceOmatic (TomoVision, Montreal, Quebec, Canada) to segment L3 into cross-sectional SM area, SAT area, and VAT area based on Hounsfield Units (HU) ranges: -190 to -30 for SAT. An add-on module called Automated Body composition Analyzer using Computed tomography image Segmentation (ABACS) automatically performs the segmentation and produces an unbiased estimation.

CT scans will also be performed to subcutaneous adipose tissue (SAT). The L3 scan is uploaded into a software called SliceOmatic (TomoVision, Montreal, Quebec, Canada) to segment L3 into cross-sectional SM area, SAT area, and VAT area based on Hounsfield Units (HU) ranges: -190 to -30 for SAT. An add-on module called Automated Body composition Analyzer using Computed tomography image Segmentation (ABACS) automatically performs the segmentation and produces an unbiased estimation.

CT scans will also be performed to assess visceral adipose tissue (VAT). The L3 scan is uploaded into a software called SliceOmatic (TomoVision, Montreal, Quebec, Canada) to segment L3 into cross-sectional SM area, SAT area, and VAT area based on Hounsfield Units (HU) ranges: -150 to -50 for VAT. An add-on module called Automated Body composition Analyzer using Computed tomography image Segmentation (ABACS) automatically performs the segmentation and produces an unbiased estimation.

CT scans will also be performed to assess visceral adipose tissue (VAT). The L3 scan is uploaded into a software called SliceOmatic (TomoVision, Montreal, Quebec, Canada) to segment L3 into cross-sectional SM area, SAT area, and VAT area based on Hounsfield Units (HU) ranges: -150 to -50 for VAT. An add-on module called Automated Body composition Analyzer using Computed tomography image Segmentation (ABACS) automatically performs the segmentation and produces an unbiased estimation.

CT scans will also be performed to assess visceral adipose tissue (VAT). The L3 scan is uploaded into a software called SliceOmatic (TomoVision, Montreal, Quebec, Canada) to segment L3 into cross-sectional SM area, SAT area, and VAT area based on Hounsfield Units (HU) ranges: -150 to -50 for VAT. An add-on module called Automated Body composition Analyzer using Computed tomography image Segmentation (ABACS) automatically performs the segmentation and produces an unbiased estimation.

Grip strength will be assessed using a handgrip dynamometer. Grip strength is based on the maximal voluntary contraction of the subject's upper body muscles. One practice repetition is performed on each side. Three trials are performed on each side, alternating sides after every repetition. The maximal grip score from all six trials is recorded.

Grip strength will be assessed using a handgrip dynamometer. Grip strength is based on the maximal voluntary contraction of the subject's upper body muscles. One practice repetition is performed on each side. Three trials are performed on each side, alternating sides after every repetition. The maximal grip score from all six trials is recorded.

Grip strength will be assessed using a handgrip dynamometer. Grip strength is based on the maximal voluntary contraction of the subject's upper body muscles. One practice repetition is performed on each side. Three trials are performed on each side, alternating sides after every repetition. The maximal grip score from all six trials is recorded.

Muscular power will be assessed using a linear position transducer (LPT). A sit-to-stand (STS) power test will be performed. Two practice repetitions are performed. Subsequently, three trial repetitions are performed, each with 60 seconds of rest in between. The greatest peak and mean power output in watts (W) of the three trial repetitions are used for analysis.

Muscular power will be assessed using a linear position transducer (LPT). A sit-to-stand (STS) power test will be performed. Two practice repetitions are performed. Subsequently, three trial repetitions are performed, each with 60 seconds of rest in between. The greatest peak and mean power output in watts (W) of the three trial repetitions are used for analysis.

Muscular power will be assessed using a linear position transducer (LPT). A sit-to-stand (STS) power test will be performed. Two practice repetitions are performed. Subsequently, three trial repetitions are performed, each with 60 seconds of rest in between. The greatest peak and mean power output in watts (W) of the three trial repetitions are used for analysis.

Fatigue will be measured using the Functional Assessment of Chronic Illness Therapy Fatigue, a 1-page form that uses a rating scale that goes from 0 (no fatigue) to 10 (severe fatigue). It assesses the patient's fatigue levels in the last 7 days. It also measures how usual activities, performing work, walking, relationship, and enjoyment of life are affected by fatigue. A higher score indicates higher levels of perceived fatigue. Clinically meaningful changes are 3 points.

Fatigue will be measured using the Functional Assessment of Chronic Illness Therapy Fatigue, a 1-page form that uses a rating scale that goes from 0 (no fatigue) to 10 (severe fatigue). It assesses the patient's fatigue levels in the last 7 days. It also measures how usual activities, performing work, walking, relationship, and enjoyment of life are affected by fatigue. A higher score indicates higher levels of perceived fatigue. Clinically meaningful changes are 3 points.

Fatigue will be measured using the Functional Assessment of Chronic Illness Therapy Fatigue, a 1-page form that uses a rating scale that goes from 0 (no fatigue) to 10 (severe fatigue). It assesses the patient's fatigue levels in the last 7 days. It also measures how usual activities, performing work, walking, relationship, and enjoyment of life are affected by fatigue. A higher score indicates higher levels of perceived fatigue. Clinically meaningful changes are 3 points.

Depression will be measured using the Hospital Anxiety and Depression Scale (HADS), a concise, self-administered 1 page form that categorizes anxiety and depression. The total score goes from 0-21, and scores are categorized from minimal to severe depression/anxiety, with higher total scores indicate worse outcomes.

Depression will be measured using the Hospital Anxiety and Depression Scale (HADS), a concise, self-administered 1 page form that categorizes anxiety and depression. The total score goes from 0-21, and scores are categorized from minimal to severe depression/anxiety, with higher total scores indicate worse outcomes.

Depression will be measured using the Hospital Anxiety and Depression Scale (HADS), a concise, self-administered 1 page form that categorizes anxiety and depression. The total score goes from 0-21, and scores are categorized from minimal to severe depression/anxiety, with higher total scores indicate worse outcomes.

Bone pain will be determined using the FACT-BP questionnaire. FACT-BP is a 15-item scale assessing cancer-related bone pain and its effects on quality of life (QoL); the higher the aggregate score, the less the bone pain and/or the better the QoL. All scales score from 0-4 and a high scale score represents a higher response level. Minimal important differences for FACT-BP range from 3-7 points.

Bone pain will be determined using the FACT-BP questionnaire. FACT-BP is a 15-item scale assessing cancer-related bone pain and its effects on quality of life (QoL); the higher the aggregate score, the less the bone pain and/or the better the QoL. All scales score from 0-4 and a high scale score represents a higher response level. Minimal important differences for FACT-BP range from 3-7 points.

Bone pain will be determined using the FACT-BP questionnaire. FACT-BP is a 15-item scale assessing cancer-related bone pain and its effects on quality of life (QoL); the higher the aggregate score, the less the bone pain and/or the better the QoL. All scales score from 0-4 and a high scale score represents a higher response level. Minimal important differences for FACT-BP range from 3-7 points.

Quality of life (QoL) will be measured using the Functional Assessment of Cancer Therapy-Prostate (FACT-P). The FACT-P is composed of both multi-item scales and single-item measures. These include physical, social, emotional, and functional well-being, along with an assessment of prostate-specific health status. five functional scales, three symptom scales, a global health status / QoL scale, and six single items. All scales score from 0-4 and a higher score represents higher QoL. Clinically meaningful changes are 6-10 points.

Quality of life (QoL) will be measured using the Functional Assessment of Cancer Therapy-Prostate (FACT-P). The FACT-P is composed of both multi-item scales and single-item measures. These include physical, social, emotional, and functional well-being, along with an assessment of prostate-specific health status. five functional scales, three symptom scales, a global health status / QoL scale, and six single items. All scales score from 0-4 and a higher score represents higher QoL. Clinically meaningful changes are 6-10 points.

Quality of life (QoL) will be measured using the Functional Assessment of Cancer Therapy-Prostate (FACT-P). The FACT-P is composed of both multi-item scales and single-item measures. These include physical, social, emotional, and functional well-being, along with an assessment of prostate-specific health status. five functional scales, three symptom scales, a global health status / QoL scale, and six single items. All scales score from 0-4 and a higher score represents higher QoL. Clinically meaningful changes are 6-10 points.

Balance will be assessed using the NeuroCom Smart Balance Master. A sensory organization test will be performed. An overall composite equilibrium score describing a person's overall level of performance during all of the trials in the sensory organization test is calculated, with a value between 0 and 100, with 0 indicating a large sway and loss of balance, and 100 indicating greater postural control. The composite score is a weighted-average of the following 14 scores: the condition 1 average score, the condition 2 average score, and the three equilibrium scores from each of the trials in conditions 3-6.

Balance will be assessed using the NeuroCom Smart Balance Master. A sensory organization test will be performed. An overall composite equilibrium score describing a person's overall level of performance during all of the trials in the sensory organization test is calculated, with a value between 0 and 100, with 0 indicating a large sway and loss of balance, and 100 indicating greater postural control. The composite score is a weighted-average of the following 14 scores: the condition 1 average score, the condition 2 average score, and the three equilibrium scores from each of the trials in conditions 3-6.

Balance will be assessed using the NeuroCom Smart Balance Master. A sensory organization test will be performed. An overall composite equilibrium score describing a person's overall level of performance during all of the trials in the sensory organization test is calculated, with a value between 0 and 100, with 0 indicating a large sway and loss of balance, and 100 indicating greater postural control. The composite score is a weighted-average of the following 14 scores: the condition 1 average score, the condition 2 average score, and the three equilibrium scores from each of the trials in conditions 3-6.

Arterial stiffness will be measured using the SphygmoCor Xcel (AtCor Medical). Arterial stiffness will be assessed using brachial pulse wave analysis (PWA) augmentation index and carotid-femoral pulse wave analysis (PWV). Greater PWA augmentation index and carotid-femoral PWV time indicates greater arterial stiffness, a surrogate end-point for cardiovascular disease.

Arterial stiffness will be measured using the SphygmoCor Xcel (AtCor Medical). Arterial stiffness will be assessed using brachial pulse wave analysis (PWA) augmentation index and carotid-femoral pulse wave analysis (PWV). Greater PWA augmentation index and carotid-femoral PWV time indicates greater arterial stiffness, a surrogate end-point for cardiovascular disease.

Arterial stiffness will be measured using the SphygmoCor Xcel (AtCor Medical). Arterial stiffness will be assessed using brachial pulse wave analysis (PWA) augmentation index and carotid-femoral pulse wave analysis (PWV). Greater PWA augmentation index and carotid-femoral PWV time indicates greater arterial stiffness, a surrogate end-point for cardiovascular disease.

Physical activity levels will be determined using the Godin Leisure-Time Exercise questionnaire, a 1-page form that categorizes the number of minimal, moderate, and strenuous bouts of exercise lasting more than 15 minutes. Higher scores represent higher activity levels.

Physical Activity will be quantified using accelerometers that will be worn continuously for ~1 wk after each visit to quantify sedentary, low, medium and high levels of activity.

Physical Activity will be quantified using accelerometers that will be worn continuously for ~1 wk after each visit to quantify sedentary, low, medium and high levels of activity.

Physical Activity will be quantified using accelerometers that will be worn continuously for ~1 wk after each visit to quantify sedentary, low, medium and high levels of activity.