and bone fragility in home-dwelling elderly women: randomized, controlled trial / Karinkanta et al.
Summary
This study showed that
combination of strength, balance, agility and jumping training prevented
functional decline and bone
fragility in home-dwelling elderly women. The finding
supports the idea that it is possible to maintain good physical
functioning
by multi-component exercise program and thus postpone the
age-related functional problems.
Introduction
This 1-year randomized, controlled exercise intervention trial assessed the effects of two different training programs and
their combination on physical functioning and bone in home-dwelling elderly women.
Methods
One hundred and forty-nine
healthy women aged 70–78 years were randomly assigned into: group
1—resistance training (RES),
group 2—balance-jumping training (BAL), group
3—combination of resistance and balance-jumping training (COMB), and
group 4—controls
(CON). Self-rated physical functioning, leg extensor
force, dynamic balance, and bone mass and structure were measured.
Results
Self-rated physical
functioning improved in the COMB group, but was reduced in the CON
group; the mean inter-group difference
was 10% (95% CI: 0–22%). Mean increase in the leg
extensor force was higher in the RES (14%; 4–25%) and COMB (13%; 3–25%)
compared with the CON groups. Dynamic balance improved in
the BAL (6%; 1–11%) and in the COMB (8%; 3–12%) groups. There were
no inter-group differences in BMC at the proximal femur.
In those COMB women who trained at least twice a week, the tibial
shaft structure weakened 2% (0–4%) less than those in the
CON group.
Conclusions
Strength, balance,
agility, and jumping training (especially in combination) prevented
functional decline in home-dwelling
elderly women. In addition, positive effects seen in the
structure of the loaded tibia indicated that exercise may also play
a role in preventing bone fragility.
Keywords Balance training - Bone fragility - Bone strength - Functional decline - Osteoporosis - Strength training
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Labels: agility and jumping training, balance, Gesundheitskonzepte, strength