Clinical trial NCT03645772: Plyometric Exercise to Improve Rapid Force Production in Older Men
Official title: Plyometric Exercise to Improve Rapid Force Production in Older Men: a Pilot Intervention
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Exercise Training
Lead sponsor: KU Leuven
Sponsor class: OTHER
First posted: 2018-08-24
Enrollment: 42
Sex: MALE
Minimum age (years): 65
Maximum age (years): 80
Standard ages: OLDER_ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: PREVENTION

Brief summary: Rapid force production declines as a consequence of ageing. Given the functional relevance of rapid force production, exercise interventions in older adults should aim at improving the capacity to produce force rapidly. To improve this capacity, exercises should be performed with the intention to develop high speeds, as supported by previous work.

Human locomotion fundamentally consists of multi-joint movements and rapidly coupled eccentric-concentric muscle actions, known as stretch-shortening cycle (SSC) activities or plyometrics. Plyometrics might therefore be used to optimize power production. However, there is limited research on the feasibility of plyometrics in older adults and its potential effects on rapid force production and functional capacity. This study will test the feasibility of a 12-week plyometric exercise intervention in older men and compare its effects on rapid force production to a traditional resistance exercise or walking intervention.


Eligibility criteria: Inclusion Criteria:

-

Exclusion Criteria:

* No systematic engagement in (resistance) exercise in the 12-months prior to participation
* Cardiovascular disease
* Neurological disorders
* Cognitive malfunctioning
* Severe knee or hip problems

Primary outcomes:
measure: Rapid force production
timeFrame: Change from baseline in rapid force production at 12 weeks
measure: Jumping height in squat jump
timeFrame: Change from baseline in jumping height at 12 weeks
measure: Jumping height in countermovement jump
timeFrame: Change from baseline in jumping height at 12 weeks
measure: Jumping height in drop jump
timeFrame: Change from baseline in jumping height at 12 weeks
Secondary outcomes:
measure: Leg press one-repetition maximum
timeFrame: Change from baseline in leg press 1-RM at 12 weeks
measure: Maximal isometric strength
timeFrame: Change from baseline in maximal isometric strength at 12 weeks
measure: Maximal isokinetic strength
timeFrame: Change from baseline in maximal isokinetic strength at 12 weeks
measure: Stair Climbing performance
timeFrame: Change from baseline in Stair Climbing performance at 12 weeks
measure: Gait speed
timeFrame: Change from baseline in gait speed at 12 weeks
measure: 5 repetition sit-to-stand test
timeFrame: Change from baseline in sit-to-stand duration at 12 weeks
measure: 6 minute walk distance
timeFrame: Change from baseline in 6min walk distance at 12 weeks
measure: Balance
timeFrame: Change from baseline in balance at 12 weeks
Other outcomes:
Locations:
city: Leuven
country: Belgium
facility: Department of Movement Sciences
Study officials:
References: