Abstract
Objective: To determine normative values for weight-bearing, countermovement leg extension (“jump”) tests in the oldest men and characteristics of those not completing vs. completing tests Design: 2014-16 cross-sectional exam. Setting: Six U.S. sites from the Osteoporotic Fractures in Men (MrOS) Study. Participants: Community-dwelling men (N=1,841) aged 84.5±4.2 (range: 77-101) years. Interventions: N/A. Measurements: Jump tests on a force plate measured lower-extremity muscle peak power/kg, velocity and force/kg at peak power, with normative values for 5-year age groups and by limitations in moderate-intensity activities of daily living (ADLs) and climbing several flights of stairs. Results: Jump completion was 68.9% (N=1,268/1,841) and 98% (1,242/1,268) had >1 analyzable trial/participant. Exclusions primarily were due to poor mobility and/or balance: 24.8% (456/1,841) prior to and 6.4% (N=117/1,841) after attempting testing. Peak power was 20.8±5.3 W/kg, with 1.2±0.3 m/s for velocity, and 16.7±1.9 N/kg for force at peak power. Each 5-year age group >80 years had subsequently 10% lower power/kg, with 30% lower power/kg at >90 vs. <80 years (all p<0.05). Velocity and force/kg at peak power were 24% and 9% lower respectively, at >90 vs. <80 years (all p<0.05). Limitations in both moderate ADLs and climbing several flights of stairs were associated with 16% lower age-adjusted power/kg, equivalent to 5–10 years of aging, with 11% and 6% lower age-adjusted velocity and force/ kg respectively, vs. those without limitation (all p<0.05). Men not completing vs. completing jumps had older age, higher BMI, lower physical activity, more comorbidities, worse cognition, more IADLs/ADLs and more falls in the past year (all p<0.05). Post-jump pain occurred in 4.6% (58/1,268), with 2 participants stopping testing due to pain. Only 24/1,242 (2%) had all trials/participant without flight (i.e., inability to lift feet), with 323/1,242 having ≥1 trial/participant without flight (total of 28%). No serious adverse safety events (e.g., injury) occurred. Conclusions: A multicenter cohort of oldest men with a range of function had higher declines in jump power/kg and velocity vs. force/kg across each 5-year age group >80 years. Future research should examine age- and functional-related declines in jump measures related to physical performance decline, falls, fractures, and disability.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1-9 |
| Number of pages | 9 |
| Journal | Journal of Nutrition, Health and Aging |
| DOIs | |
| State | Accepted/In press - Jul 7 2018 |
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ASJC Scopus subject areas
- Medicine (miscellaneous)
- Nutrition and Dietetics
- Geriatrics and Gerontology
Cite this
Normative Values of Muscle Power Using Force Plate Jump Tests in Men Aged 77–101 Years : The Osteoporotic Fractures in Men (MrOS) Study. / Osteoporotic Fractures in Men (MrOS) Research Group.
In: Journal of Nutrition, Health and Aging, 07.07.2018, p. 1-9.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Normative Values of Muscle Power Using Force Plate Jump Tests in Men Aged 77–101 Years
T2 - The Osteoporotic Fractures in Men (MrOS) Study
AU - Osteoporotic Fractures in Men (MrOS) Research Group
AU - Strotmeyer, Elsa S.
AU - Winger, M. E.
AU - Cauley, J. A.
AU - Boudreau, R. M.
AU - Cusick, D.
AU - Collins, R. F.
AU - Chalhoub, D.
AU - Buehring, B.
AU - Orwoll, Eric
AU - Harris, T. B.
AU - Nielson, Carrie
PY - 2018/7/7
Y1 - 2018/7/7
N2 - Objective: To determine normative values for weight-bearing, countermovement leg extension (“jump”) tests in the oldest men and characteristics of those not completing vs. completing tests Design: 2014-16 cross-sectional exam. Setting: Six U.S. sites from the Osteoporotic Fractures in Men (MrOS) Study. Participants: Community-dwelling men (N=1,841) aged 84.5±4.2 (range: 77-101) years. Interventions: N/A. Measurements: Jump tests on a force plate measured lower-extremity muscle peak power/kg, velocity and force/kg at peak power, with normative values for 5-year age groups and by limitations in moderate-intensity activities of daily living (ADLs) and climbing several flights of stairs. Results: Jump completion was 68.9% (N=1,268/1,841) and 98% (1,242/1,268) had >1 analyzable trial/participant. Exclusions primarily were due to poor mobility and/or balance: 24.8% (456/1,841) prior to and 6.4% (N=117/1,841) after attempting testing. Peak power was 20.8±5.3 W/kg, with 1.2±0.3 m/s for velocity, and 16.7±1.9 N/kg for force at peak power. Each 5-year age group >80 years had subsequently 10% lower power/kg, with 30% lower power/kg at >90 vs. <80 years (all p<0.05). Velocity and force/kg at peak power were 24% and 9% lower respectively, at >90 vs. <80 years (all p<0.05). Limitations in both moderate ADLs and climbing several flights of stairs were associated with 16% lower age-adjusted power/kg, equivalent to 5–10 years of aging, with 11% and 6% lower age-adjusted velocity and force/ kg respectively, vs. those without limitation (all p<0.05). Men not completing vs. completing jumps had older age, higher BMI, lower physical activity, more comorbidities, worse cognition, more IADLs/ADLs and more falls in the past year (all p<0.05). Post-jump pain occurred in 4.6% (58/1,268), with 2 participants stopping testing due to pain. Only 24/1,242 (2%) had all trials/participant without flight (i.e., inability to lift feet), with 323/1,242 having ≥1 trial/participant without flight (total of 28%). No serious adverse safety events (e.g., injury) occurred. Conclusions: A multicenter cohort of oldest men with a range of function had higher declines in jump power/kg and velocity vs. force/kg across each 5-year age group >80 years. Future research should examine age- and functional-related declines in jump measures related to physical performance decline, falls, fractures, and disability.
AB - Objective: To determine normative values for weight-bearing, countermovement leg extension (“jump”) tests in the oldest men and characteristics of those not completing vs. completing tests Design: 2014-16 cross-sectional exam. Setting: Six U.S. sites from the Osteoporotic Fractures in Men (MrOS) Study. Participants: Community-dwelling men (N=1,841) aged 84.5±4.2 (range: 77-101) years. Interventions: N/A. Measurements: Jump tests on a force plate measured lower-extremity muscle peak power/kg, velocity and force/kg at peak power, with normative values for 5-year age groups and by limitations in moderate-intensity activities of daily living (ADLs) and climbing several flights of stairs. Results: Jump completion was 68.9% (N=1,268/1,841) and 98% (1,242/1,268) had >1 analyzable trial/participant. Exclusions primarily were due to poor mobility and/or balance: 24.8% (456/1,841) prior to and 6.4% (N=117/1,841) after attempting testing. Peak power was 20.8±5.3 W/kg, with 1.2±0.3 m/s for velocity, and 16.7±1.9 N/kg for force at peak power. Each 5-year age group >80 years had subsequently 10% lower power/kg, with 30% lower power/kg at >90 vs. <80 years (all p<0.05). Velocity and force/kg at peak power were 24% and 9% lower respectively, at >90 vs. <80 years (all p<0.05). Limitations in both moderate ADLs and climbing several flights of stairs were associated with 16% lower age-adjusted power/kg, equivalent to 5–10 years of aging, with 11% and 6% lower age-adjusted velocity and force/ kg respectively, vs. those without limitation (all p<0.05). Men not completing vs. completing jumps had older age, higher BMI, lower physical activity, more comorbidities, worse cognition, more IADLs/ADLs and more falls in the past year (all p<0.05). Post-jump pain occurred in 4.6% (58/1,268), with 2 participants stopping testing due to pain. Only 24/1,242 (2%) had all trials/participant without flight (i.e., inability to lift feet), with 323/1,242 having ≥1 trial/participant without flight (total of 28%). No serious adverse safety events (e.g., injury) occurred. Conclusions: A multicenter cohort of oldest men with a range of function had higher declines in jump power/kg and velocity vs. force/kg across each 5-year age group >80 years. Future research should examine age- and functional-related declines in jump measures related to physical performance decline, falls, fractures, and disability.
UR - http://www.scopus.com/inward/record.url?scp=85049586987&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85049586987&partnerID=8YFLogxK
U2 - 10.1007/s12603-018-1081-x
DO - 10.1007/s12603-018-1081-x
M3 - Article
C2 - 30498822
AN - SCOPUS:85049586987
SP - 1
EP - 9
JO - Journal of Nutrition, Health and Aging
JF - Journal of Nutrition, Health and Aging
SN - 1279-7707
ER -